comparing 95c8d1daccc4a1f5a176ec07f8b8496c06eca114 and master on hauleth.dev/advent-of-code

+378 -1042

2021/day24.livemd

···

       326
       326
        
       ```

     

       327
       327
        
       

     

       328
       328
        
       ```elixir

     

       329
       329
       -
       44..52 |> Enum.map(&rem(&1, 26))

     

       329
       329
       +
       digits =

     

       330
       330
       +
         Enum.chunk_while(

     

       331
       331
       +
         input,

     

       332
       332
       +
         [],

     

       333
       333
       +
         fn

     

       334
       334
       +
           {:inp, _} = inp, [] -> {:cont, [inp]}

     

       335
       335
       +
           {:inp, _} = inp, acc -> {:cont, Enum.reverse(acc), [inp]}

     

       336
       336
       +
           other, acc -> {:cont, [other | acc]}

     

       337
       337
       +
         end,

     

       338
       338
       +
         fn acc -> {:cont, Enum.reverse(acc), []} end

     

       339
       339
       +
       )

     

       330
       340
        
       ```

     

       331
       341
        
       

     

       332
       342
        
       <!-- livebook:{"output":true} -->

     

       333
       343
        
       

     

       334
       344
        
       ```

     

       335
       335
       -
       [18, 19, 20, 21, 22, 23, 24, 25, 0]

     

       345
       345
       +
       [

     

       346
       346
       +
         [

     

       347
       347
       +
           {:inp, :w},

     

       348
       348
       +
           {:mul, :x, 0},

     

       349
       349
       +
           {:add, :x, :z},

     

       350
       350
       +
           {:mod, :x, 26},

     

       351
       351
       +
           {:div, :z, 1},

     

       352
       352
       +
           {:add, :x, 11},

     

       353
       353
       +
           {:eql, :x, :w},

     

       354
       354
       +
           {:eql, :x, 0},

     

       355
       355
       +
           {:mul, :y, 0},

     

       356
       356
       +
           {:add, :y, 25},

     

       357
       357
       +
           {:mul, :y, :x},

     

       358
       358
       +
           {:add, :y, 1},

     

       359
       359
       +
           {:mul, :z, :y},

     

       360
       360
       +
           {:mul, :y, 0},

     

       361
       361
       +
           {:add, :y, :w},

     

       362
       362
       +
           {:add, :y, 16},

     

       363
       363
       +
           {:mul, :y, :x},

     

       364
       364
       +
           {:add, :z, :y}

     

       365
       365
       +
         ],

     

       366
       366
       +
         [

     

       367
       367
       +
           {:inp, :w},

     

       368
       368
       +
           {:mul, :x, 0},

     

       369
       369
       +
           {:add, :x, :z},

     

       370
       370
       +
           {:mod, :x, 26},

     

       371
       371
       +
           {:div, :z, 1},

     

       372
       372
       +
           {:add, :x, 12},

     

       373
       373
       +
           {:eql, :x, :w},

     

       374
       374
       +
           {:eql, :x, 0},

     

       375
       375
       +
           {:mul, :y, 0},

     

       376
       376
       +
           {:add, :y, 25},

     

       377
       377
       +
           {:mul, :y, :x},

     

       378
       378
       +
           {:add, :y, 1},

     

       379
       379
       +
           {:mul, :z, :y},

     

       380
       380
       +
           {:mul, :y, 0},

     

       381
       381
       +
           {:add, :y, :w},

     

       382
       382
       +
           {:add, :y, 11},

     

       383
       383
       +
           {:mul, :y, :x},

     

       384
       384
       +
           {:add, :z, :y}

     

       385
       385
       +
         ],

     

       386
       386
       +
         [

     

       387
       387
       +
           {:inp, :w},

     

       388
       388
       +
           {:mul, :x, 0},

     

       389
       389
       +
           {:add, :x, :z},

     

       390
       390
       +
           {:mod, :x, 26},

     

       391
       391
       +
           {:div, :z, 1},

     

       392
       392
       +
           {:add, :x, 13},

     

       393
       393
       +
           {:eql, :x, :w},

     

       394
       394
       +
           {:eql, :x, 0},

     

       395
       395
       +
           {:mul, :y, 0},

     

       396
       396
       +
           {:add, :y, 25},

     

       397
       397
       +
           {:mul, :y, :x},

     

       398
       398
       +
           {:add, :y, 1},

     

       399
       399
       +
           {:mul, :z, :y},

     

       400
       400
       +
           {:mul, :y, 0},

     

       401
       401
       +
           {:add, :y, :w},

     

       402
       402
       +
           {:add, :y, 12},

     

       403
       403
       +
           {:mul, :y, :x},

     

       404
       404
       +
           {:add, :z, :y}

     

       405
       405
       +
         ],

     

       406
       406
       +
         [

     

       407
       407
       +
           {:inp, :w},

     

       408
       408
       +
           {:mul, :x, 0},

     

       409
       409
       +
           {:add, :x, :z},

     

       410
       410
       +
           {:mod, :x, 26},

     

       411
       411
       +
           {:div, :z, 26},

     

       412
       412
       +
           {:add, :x, -5},

     

       413
       413
       +
           {:eql, :x, :w},

     

       414
       414
       +
           {:eql, :x, 0},

     

       415
       415
       +
           {:mul, :y, 0},

     

       416
       416
       +
           {:add, :y, 25},

     

       417
       417
       +
           {:mul, :y, :x},

     

       418
       418
       +
           {:add, :y, 1},

     

       419
       419
       +
           {:mul, :z, :y},

     

       420
       420
       +
           {:mul, :y, 0},

     

       421
       421
       +
           {:add, :y, :w},

     

       422
       422
       +
           {:add, :y, 12},

     

       423
       423
       +
           {:mul, :y, :x},

     

       424
       424
       +
           {:add, :z, :y}

     

       425
       425
       +
         ],

     

       426
       426
       +
         [

     

       427
       427
       +
           {:inp, :w},

     

       428
       428
       +
           {:mul, :x, 0},

     

       429
       429
       +
           {:add, :x, :z},

     

       430
       430
       +
           {:mod, :x, 26},

     

       431
       431
       +
           {:div, :z, 26},

     

       432
       432
       +
           {:add, :x, -3},

     

       433
       433
       +
           {:eql, :x, :w},

     

       434
       434
       +
           {:eql, :x, 0},

     

       435
       435
       +
           {:mul, :y, 0},

     

       436
       436
       +
           {:add, :y, 25},

     

       437
       437
       +
           {:mul, :y, :x},

     

       438
       438
       +
           {:add, :y, 1},

     

       439
       439
       +
           {:mul, :z, :y},

     

       440
       440
       +
           {:mul, :y, 0},

     

       441
       441
       +
           {:add, :y, :w},

     

       442
       442
       +
           {:add, :y, 12},

     

       443
       443
       +
           {:mul, :y, :x},

     

       444
       444
       +
           {:add, :z, :y}

     

       445
       445
       +
         ],

     

       446
       446
       +
         [

     

       447
       447
       +
           {:inp, :w},

     

       448
       448
       +
           {:mul, :x, 0},

     

       449
       449
       +
           {:add, :x, :z},

     

       450
       450
       +
           {:mod, :x, 26},

     

       451
       451
       +
           {:div, :z, 1},

     

       452
       452
       +
           {:add, :x, 14},

     

       453
       453
       +
           {:eql, :x, :w},

     

       454
       454
       +
           {:eql, :x, 0},

     

       455
       455
       +
           {:mul, :y, 0},

     

       456
       456
       +
           {:add, :y, 25},

     

       457
       457
       +
           {:mul, :y, :x},

     

       458
       458
       +
           {:add, :y, 1},

     

       459
       459
       +
           {:mul, :z, :y},

     

       460
       460
       +
           {:mul, :y, 0},

     

       461
       461
       +
           {:add, :y, :w},

     

       462
       462
       +
           {:add, :y, 2},

     

       463
       463
       +
           {:mul, :y, :x},

     

       464
       464
       +
           {:add, :z, :y}

     

       465
       465
       +
         ],

     

       466
       466
       +
         [

     

       467
       467
       +
           {:inp, :w},

     

       468
       468
       +
           {:mul, :x, 0},

     

       469
       469
       +
           {:add, :x, :z},

     

       470
       470
       +
           {:mod, :x, 26},

     

       471
       471
       +
           {:div, :z, 1},

     

       472
       472
       +
           {:add, :x, 15},

     

       473
       473
       +
           {:eql, :x, :w},

     

       474
       474
       +
           {:eql, :x, 0},

     

       475
       475
       +
           {:mul, :y, 0},

     

       476
       476
       +
           {:add, :y, 25},

     

       477
       477
       +
           {:mul, :y, :x},

     

       478
       478
       +
           {:add, :y, 1},

     

       479
       479
       +
           {:mul, :z, :y},

     

       480
       480
       +
           {:mul, :y, 0},

     

       481
       481
       +
           {:add, :y, :w},

     

       482
       482
       +
           {:add, :y, 11},

     

       483
       483
       +
           {:mul, :y, :x},

     

       484
       484
       +
           {:add, :z, :y}

     

       485
       485
       +
         ],

     

       486
       486
       +
         [

     

       487
       487
       +
           {:inp, :w},

     

       488
       488
       +
           {:mul, :x, 0},

     

       489
       489
       +
           {:add, :x, :z},

     

       490
       490
       +
           {:mod, :x, 26},

     

       491
       491
       +
           {:div, :z, 26},

     

       492
       492
       +
           {:add, :x, -16},

     

       493
       493
       +
           {:eql, :x, :w},

     

       494
       494
       +
           {:eql, :x, 0},

     

       495
       495
       +
           {:mul, :y, 0},

     

       496
       496
       +
           {:add, :y, 25},

     

       497
       497
       +
           {:mul, :y, :x},

     

       498
       498
       +
           {:add, :y, 1},

     

       499
       499
       +
           {:mul, :z, :y},

     

       500
       500
       +
           {:mul, :y, 0},

     

       501
       501
       +
           {:add, :y, :w},

     

       502
       502
       +
           {:add, :y, 4},

     

       503
       503
       +
           {:mul, :y, :x},

     

       504
       504
       +
           {:add, :z, :y}

     

       505
       505
       +
         ],

     

       506
       506
       +
         [

     

       507
       507
       +
           {:inp, :w},

     

       508
       508
       +
           {:mul, :x, 0},

     

       509
       509
       +
           {:add, :x, :z},

     

       510
       510
       +
           {:mod, :x, 26},

     

       511
       511
       +
           {:div, :z, 1},

     

       512
       512
       +
           {:add, :x, 14},

     

       513
       513
       +
           {:eql, :x, :w},

     

       514
       514
       +
           {:eql, :x, 0},

     

       515
       515
       +
           {:mul, :y, 0},

     

       516
       516
       +
           {:add, :y, 25},

     

       517
       517
       +
           {:mul, :y, :x},

     

       518
       518
       +
           {:add, :y, 1},

     

       519
       519
       +
           {:mul, :z, :y},

     

       520
       520
       +
           {:mul, :y, 0},

     

       521
       521
       +
           {:add, :y, :w},

     

       522
       522
       +
           {:add, :y, 12},

     

       523
       523
       +
           {:mul, :y, :x},

     

       524
       524
       +
           {:add, :z, :y}

     

       525
       525
       +
         ],

     

       526
       526
       +
         [

     

       527
       527
       +
           {:inp, :w},

     

       528
       528
       +
           {:mul, :x, 0},

     

       529
       529
       +
           {:add, :x, :z},

     

       530
       530
       +
           {:mod, :x, 26},

     

       531
       531
       +
           {:div, :z, 1},

     

       532
       532
       +
           {:add, :x, 15},

     

       533
       533
       +
           {:eql, :x, :w},

     

       534
       534
       +
           {:eql, :x, 0},

     

       535
       535
       +
           {:mul, :y, 0},

     

       536
       536
       +
           {:add, :y, 25},

     

       537
       537
       +
           {:mul, :y, :x},

     

       538
       538
       +
           {:add, :y, 1},

     

       539
       539
       +
           {:mul, :z, :y},

     

       540
       540
       +
           {:mul, :y, 0},

     

       541
       541
       +
           {:add, :y, :w},

     

       542
       542
       +
           {:add, :y, 9},

     

       543
       543
       +
           {:mul, :y, :x},

     

       544
       544
       +
           {:add, :z, :y}

     

       545
       545
       +
         ],

     

       546
       546
       +
         [

     

       547
       547
       +
           {:inp, :w},

     

       548
       548
       +
           {:mul, :x, 0},

     

       549
       549
       +
           {:add, :x, :z},

     

       550
       550
       +
           {:mod, :x, 26},

     

       551
       551
       +
           {:div, :z, 26},

     

       552
       552
       +
           {:add, :x, -7},

     

       553
       553
       +
           {:eql, :x, :w},

     

       554
       554
       +
           {:eql, :x, 0},

     

       555
       555
       +
           {:mul, :y, 0},

     

       556
       556
       +
           {:add, :y, 25},

     

       557
       557
       +
           {:mul, :y, :x},

     

       558
       558
       +
           {:add, :y, 1},

     

       559
       559
       +
           {:mul, :z, :y},

     

       560
       560
       +
           {:mul, :y, 0},

     

       561
       561
       +
           {:add, :y, :w},

     

       562
       562
       +
           {:add, :y, 10},

     

       563
       563
       +
           {:mul, :y, :x},

     

       564
       564
       +
           {:add, :z, :y}

     

       565
       565
       +
         ],

     

       566
       566
       +
         [

     

       567
       567
       +
           {:inp, :w},

     

       568
       568
       +
           {:mul, :x, 0},

     

       569
       569
       +
           {:add, :x, :z},

     

       570
       570
       +
           {:mod, :x, 26},

     

       571
       571
       +
           {:div, :z, 26},

     

       572
       572
       +
           {:add, :x, -11},

     

       573
       573
       +
           {:eql, :x, :w},

     

       574
       574
       +
           {:eql, :x, 0},

     

       575
       575
       +
           {:mul, :y, 0},

     

       576
       576
       +
           {:add, :y, 25},

     

       577
       577
       +
           {:mul, :y, :x},

     

       578
       578
       +
           {:add, :y, 1},

     

       579
       579
       +
           {:mul, :z, :y},

     

       580
       580
       +
           {:mul, :y, 0},

     

       581
       581
       +
           {:add, :y, :w},

     

       582
       582
       +
           {:add, :y, 11},

     

       583
       583
       +
           {:mul, :y, :x},

     

       584
       584
       +
           {:add, :z, :y}

     

       585
       585
       +
         ],

     

       586
       586
       +
         [

     

       587
       587
       +
           {:inp, :w},

     

       588
       588
       +
           {:mul, :x, 0},

     

       589
       589
       +
           {:add, :x, :z},

     

       590
       590
       +
           {:mod, :x, 26},

     

       591
       591
       +
           {:div, :z, 26},

     

       592
       592
       +
           {:add, :x, -6},

     

       593
       593
       +
           {:eql, :x, :w},

     

       594
       594
       +
           {:eql, :x, 0},

     

       595
       595
       +
           {:mul, :y, 0},

     

       596
       596
       +
           {:add, :y, 25},

     

       597
       597
       +
           {:mul, :y, :x},

     

       598
       598
       +
           {:add, :y, 1},

     

       599
       599
       +
           {:mul, :z, :y},

     

       600
       600
       +
           {:mul, :y, 0},

     

       601
       601
       +
           {:add, :y, :w},

     

       602
       602
       +
           {:add, :y, 6},

     

       603
       603
       +
           {:mul, :y, :x},

     

       604
       604
       +
           {:add, :z, :y}

     

       605
       605
       +
         ],

     

       606
       606
       +
         [

     

       607
       607
       +
           {:inp, :w},

     

       608
       608
       +
           {:mul, :x, 0},

     

       609
       609
       +
           {:add, :x, :z},

     

       610
       610
       +
           {:mod, :x, 26},

     

       611
       611
       +
           {:div, :z, 26},

     

       612
       612
       +
           {:add, :x, -11},

     

       613
       613
       +
           {:eql, :x, :w},

     

       614
       614
       +
           {:eql, :x, 0},

     

       615
       615
       +
           {:mul, :y, 0},

     

       616
       616
       +
           {:add, :y, 25},

     

       617
       617
       +
           {:mul, :y, :x},

     

       618
       618
       +
           {:add, :y, 1},

     

       619
       619
       +
           {:mul, :z, :y},

     

       620
       620
       +
           {:mul, :y, 0},

     

       621
       621
       +
           {:add, :y, :w},

     

       622
       622
       +
           {:add, :y, 15},

     

       623
       623
       +
           {:mul, :y, :x},

     

       624
       624
       +
           {:add, :z, :y}

     

       625
       625
       +
         ]

     

       626
       626
       +
       ]

     

       336
       627
        
       ```

     

       337
       628
        
       

     

       338
       629
        
       ```elixir

     

       339
       339
       -
       IO.inspect(Day24.evaluate(input, 11_111_111_111_131))

     

       630
       630
       +
       List.myers_difference(hd(digits), Enum.at(digits, 4))

     

       340
       631
        
       ```

     

       341
       632
        
       

     

       342
       633
        
       <!-- livebook:{"output":true} -->

     

       343
       634
        
       

     

       344
       635
        
       ```

     

       345
       345
       -
       %{w: 1, x: 1, y: 16, z: 5400141854}

     

       636
       636
       +
       [

     

       637
       637
       +
         eq: [{:inp, :w}, {:mul, :x, 0}, {:add, :x, :z}, {:mod, :x, 26}],

     

       638
       638
       +
         del: [{:div, :z, 1}, {:add, :x, 11}],

     

       639
       639
       +
         ins: [{:div, :z, 26}, {:add, :x, -3}],

     

       640
       640
       +
         eq: [

     

       641
       641
       +
           {:eql, :x, :w},

     

       642
       642
       +
           {:eql, :x, 0},

     

       643
       643
       +
           {:mul, :y, 0},

     

       644
       644
       +
           {:add, :y, 25},

     

       645
       645
       +
           {:mul, :y, :x},

     

       646
       646
       +
           {:add, :y, 1},

     

       647
       647
       +
           {:mul, :z, :y},

     

       648
       648
       +
           {:mul, :y, 0},

     

       649
       649
       +
           {:add, :y, :w}

     

       650
       650
       +
         ],

     

       651
       651
       +
         del: [{:add, :y, 16}],

     

       652
       652
       +
         ins: [{:add, :y, 12}],

     

       653
       653
       +
         eq: [{:mul, :y, :x}, {:add, :z, :y}]

     

       654
       654
       +
       ]

     

       655
       655
       +
       ```

     

       656
       656
       +
       

     

       657
       657
       +
       ```elixir

     

       658
       658
       +
       params =

     

       659
       659
       +
         Enum.map(digits, fn sub ->

     

       660
       660
       +
           [5, 15]

     

       661
       661
       +
           |> Enum.map(&Enum.at(sub, &1))

     

       662
       662
       +
           |> Enum.map(&elem(&1, 2))

     

       663
       663
       +
         end)

     

       346
       664
        
       ```

     

       347
       665
        
       

     

       348
       666
        
       <!-- livebook:{"output":true} -->

     

       349
       667
        
       

     

       350
       668
        
       ```

     

       351
       351
       -
       %{w: 1, x: 1, y: 16, z: 5400141854}

     

       669
       669
       +
       [

     

       670
       670
       +
         [11, 16],

     

       671
       671
       +
         ~c"\f\v",

     

       672
       672
       +
         ~c"\r\f",

     

       673
       673
       +
         [-5, 12],

     

       674
       674
       +
         [-3, 12],

     

       675
       675
       +
         [14, 2],

     

       676
       676
       +
         [15, 11],

     

       677
       677
       +
         [-16, 4],

     

       678
       678
       +
         [14, 12],

     

       679
       679
       +
         [15, 9],

     

       680
       680
       +
         [-7, 10],

     

       681
       681
       +
         [-11, 11],

     

       682
       682
       +
         [-6, 6],

     

       683
       683
       +
         [-11, 15]

     

       684
       684
       +
       ]

     

       352
       685
        
       ```

     

       353
       686
        
       

     

       354
       687
        
       ```elixir

     

       355
       355
       -
       range = 9..1//-1

     

       688
       688
       +
       defmodule ALU do

     

       689
       689
       +
         def solve(params, range) do

     

       690
       690
       +
           params |> solve(0, [], range) |> Enum.reverse() |> Integer.undigits()

     

       691
       691
       +
         end

     

       356
       692
        
       

     

       357
       357
       -
       for d01 <- range,

     

       358
       358
       -
           d02 <- range,

     

       359
       359
       -
           d03 <- range,

     

       360
       360
       -
           d04 <- range,

     

       361
       361
       -
           d05 <- range,

     

       362
       362
       -
           d06 <- range,

     

       363
       363
       -
           d07 <- range,

     

       364
       364
       -
           d08 <- range,

     

       365
       365
       -
           d09 <- range,

     

       366
       366
       -
           d10 <- range,

     

       367
       367
       -
           d11 <- range,

     

       368
       368
       -
           d12 <- range,

     

       369
       369
       -
           d13 <- range,

     

       370
       370
       -
           d14 <- range do

     

       371
       371
       -
         ver = [

     

       372
       372
       -
           d01,

     

       373
       373
       -
           d02,

     

       374
       374
       -
           d03,

     

       375
       375
       -
           d04,

     

       376
       376
       -
           d05,

     

       377
       377
       -
           d06,

     

       378
       378
       -
           d07,

     

       379
       379
       -
           d08,

     

       380
       380
       -
           d09,

     

       381
       381
       -
           d10,

     

       382
       382
       -
           d11,

     

       383
       383
       -
           d12,

     

       384
       384
       -
           d13,

     

       385
       385
       -
           d14

     

       386
       386
       -
         ]

     

       693
       693
       +
         defp solve([], _z, acc, _range), do: acc

     

       387
       694
        
       

     

       388
       388
       -
         result = Day24.evaluate(input, ver)

     

       695
       695
       +
         defp solve([[a, b] | rest], z, acc, range) when a > 0 do

     

       696
       696
       +
           Enum.find_value(range, fn w ->

     

       697
       697
       +
             solve(rest, 26 * z + w + b, [w | acc], range)

     

       698
       698
       +
           end)

     

       699
       699
       +
         end

     

       389
       700
        
       

     

       390
       390
       -
         IO.inspect(result)

     

       701
       701
       +
         defp solve([[a, _] | rest], z, acc, range) when a < 0 do

     

       702
       702
       +
           value = rem(z, 26) + a

     

       391
       703
        
       

     

       392
       392
       -
         if result.z == 0 do

     

       393
       393
       -
           throw({:ok, Integer.undigits(ver)})

     

       394
       394
       -
         else

     

       395
       395
       -
           []

     

       704
       704
       +
           if value in range do

     

       705
       705
       +
             solve(rest, div(z, 26), [value | acc], range)

     

       706
       706
       +
           end

     

       396
       707
        
         end

     

       397
       708
        
       end

     

       398
       709
        
       ```

     
···

       400
       711
        
       <!-- livebook:{"output":true} -->

     

       401
       712
        
       

     

       402
       713
        
       ```

     

       403
       403
       -
       ...

     

       404
       404
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       405
       405
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       406
       406
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       407
       407
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       408
       408
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       409
       409
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       410
       410
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       411
       411
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       412
       412
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       413
       413
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       414
       414
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       415
       415
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       416
       416
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       417
       417
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       418
       418
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       419
       419
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       420
       420
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       421
       421
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       422
       422
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       423
       423
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       424
       424
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       425
       425
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       426
       426
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       427
       427
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       428
       428
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       429
       429
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       430
       430
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       431
       431
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       432
       432
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       433
       433
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       434
       434
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       435
       435
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       436
       436
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       437
       437
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       438
       438
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       439
       439
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       440
       440
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       441
       441
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       442
       442
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       443
       443
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       444
       444
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       445
       445
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       446
       446
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       447
       447
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       448
       448
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       449
       449
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       450
       450
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       451
       451
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       452
       452
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       453
       453
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       454
       454
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       455
       455
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       456
       456
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       457
       457
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       458
       458
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       459
       459
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       460
       460
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       461
       461
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       462
       462
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       463
       463
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       464
       464
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       465
       465
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       466
       466
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       467
       467
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       468
       468
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       469
       469
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       470
       470
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       471
       471
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       472
       472
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       473
       473
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       474
       474
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       475
       475
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       476
       476
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       477
       477
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       478
       478
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       479
       479
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       480
       480
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       481
       481
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       482
       482
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       483
       483
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       484
       484
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       485
       485
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       486
       486
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       487
       487
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       488
       488
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       489
       489
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       490
       490
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       491
       491
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       492
       492
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       493
       493
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       494
       494
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       495
       495
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       496
       496
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       497
       497
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       498
       498
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       499
       499
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       500
       500
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       501
       501
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       502
       502
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       503
       503
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       504
       504
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       505
       505
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       506
       506
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       507
       507
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       508
       508
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       509
       509
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       510
       510
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       511
       511
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       512
       512
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       513
       513
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       514
       514
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       515
       515
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       516
       516
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       517
       517
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       518
       518
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       519
       519
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       520
       520
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       521
       521
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       522
       522
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       523
       523
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       524
       524
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       525
       525
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       526
       526
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       527
       527
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       528
       528
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       529
       529
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       530
       530
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       531
       531
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       532
       532
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       533
       533
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       534
       534
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       535
       535
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       536
       536
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       537
       537
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       538
       538
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       539
       539
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       540
       540
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       541
       541
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       542
       542
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       543
       543
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       544
       544
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       545
       545
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       546
       546
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       547
       547
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       548
       548
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       549
       549
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       550
       550
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       551
       551
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       552
       552
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       553
       553
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       554
       554
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       555
       555
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       556
       556
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       557
       557
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       558
       558
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       559
       559
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       560
       560
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       561
       561
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       562
       562
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       563
       563
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       564
       564
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       565
       565
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       566
       566
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       567
       567
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       568
       568
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       569
       569
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       570
       570
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       571
       571
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       572
       572
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       573
       573
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       574
       574
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       575
       575
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       576
       576
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       577
       577
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       578
       578
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       579
       579
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       580
       580
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       581
       581
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       582
       582
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       583
       583
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       584
       584
       -
       %{w: 4, x: 0, y: 0, z: 11790415}

     

       585
       585
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       586
       586
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       587
       587
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       588
       588
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       589
       589
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       590
       590
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       591
       591
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       592
       592
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       593
       593
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       594
       594
       -
       %{w: 3, x: 0, y: 0, z: 11790415}

     

       595
       595
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       596
       596
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       597
       597
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       598
       598
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       599
       599
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       600
       600
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       601
       601
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       602
       602
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       603
       603
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       604
       604
       -
       %{w: 2, x: 0, y: 0, z: 11790415}

     

       605
       605
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       606
       606
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       607
       607
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       608
       608
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       609
       609
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       610
       610
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       611
       611
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       612
       612
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       613
       613
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       614
       614
       -
       %{w: 1, x: 0, y: 0, z: 11790415}

     

       615
       615
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       616
       616
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       617
       617
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       618
       618
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       619
       619
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       620
       620
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       621
       621
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       622
       622
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       623
       623
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       624
       624
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       625
       625
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       626
       626
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       627
       627
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       628
       628
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       629
       629
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       630
       630
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       631
       631
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       632
       632
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       633
       633
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       634
       634
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       635
       635
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       636
       636
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       637
       637
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       638
       638
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       639
       639
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       640
       640
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       641
       641
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       642
       642
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       643
       643
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       644
       644
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       645
       645
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       646
       646
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       647
       647
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       648
       648
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       649
       649
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       650
       650
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       651
       651
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       652
       652
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       653
       653
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       654
       654
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       655
       655
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       656
       656
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       657
       657
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       658
       658
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       659
       659
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       660
       660
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       661
       661
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       662
       662
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       663
       663
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       664
       664
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       665
       665
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       666
       666
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       667
       667
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       668
       668
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       669
       669
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       670
       670
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       671
       671
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       672
       672
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       673
       673
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       674
       674
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       675
       675
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       676
       676
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       677
       677
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       678
       678
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       679
       679
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       680
       680
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       681
       681
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       682
       682
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       683
       683
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       684
       684
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       685
       685
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       686
       686
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       687
       687
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       688
       688
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       689
       689
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       690
       690
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       691
       691
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       692
       692
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       693
       693
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       694
       694
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       695
       695
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       696
       696
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       697
       697
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       698
       698
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       699
       699
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       700
       700
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       701
       701
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       702
       702
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       703
       703
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       704
       704
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       705
       705
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       706
       706
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       707
       707
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       708
       708
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       709
       709
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       710
       710
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       711
       711
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       712
       712
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       713
       713
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       714
       714
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       715
       715
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       716
       716
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       717
       717
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       718
       718
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       719
       719
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       720
       720
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       721
       721
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       722
       722
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       723
       723
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       724
       724
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       725
       725
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       726
       726
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       727
       727
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       728
       728
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       729
       729
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       730
       730
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       731
       731
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       732
       732
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       733
       733
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       734
       734
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       735
       735
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       736
       736
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       737
       737
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       738
       738
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       739
       739
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       740
       740
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       741
       741
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       742
       742
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       743
       743
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       744
       744
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       745
       745
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       746
       746
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       747
       747
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       748
       748
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       749
       749
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       750
       750
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       751
       751
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       752
       752
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       753
       753
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       754
       754
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       755
       755
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       756
       756
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       757
       757
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       758
       758
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       759
       759
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       760
       760
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       761
       761
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       762
       762
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       763
       763
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       764
       764
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       765
       765
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       766
       766
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       767
       767
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       768
       768
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       769
       769
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       770
       770
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       771
       771
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       772
       772
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       773
       773
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       774
       774
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       775
       775
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       776
       776
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       777
       777
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       778
       778
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       779
       779
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       780
       780
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       781
       781
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       782
       782
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       783
       783
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       784
       784
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       785
       785
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       786
       786
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       787
       787
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       788
       788
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       789
       789
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       790
       790
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       791
       791
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       792
       792
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       793
       793
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       794
       794
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       795
       795
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       796
       796
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       797
       797
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       798
       798
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       799
       799
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       800
       800
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       801
       801
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       802
       802
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       803
       803
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       804
       804
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       805
       805
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       806
       806
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       807
       807
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       808
       808
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       809
       809
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       810
       810
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       811
       811
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       812
       812
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       813
       813
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       814
       814
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       815
       815
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       816
       816
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       817
       817
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       818
       818
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       819
       819
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       820
       820
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       821
       821
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       822
       822
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       823
       823
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       824
       824
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       825
       825
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       826
       826
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       827
       827
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       828
       828
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       829
       829
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       830
       830
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       831
       831
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       832
       832
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       833
       833
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       834
       834
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       835
       835
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       836
       836
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       837
       837
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       838
       838
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       839
       839
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       840
       840
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       841
       841
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       842
       842
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       843
       843
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       844
       844
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       845
       845
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       846
       846
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       847
       847
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       848
       848
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       849
       849
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       850
       850
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       851
       851
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       852
       852
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       853
       853
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       854
       854
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       855
       855
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       856
       856
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       857
       857
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       858
       858
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       859
       859
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       860
       860
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       861
       861
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       862
       862
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       863
       863
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       864
       864
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       865
       865
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       866
       866
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       867
       867
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       868
       868
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       869
       869
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       870
       870
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       871
       871
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       872
       872
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       873
       873
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       874
       874
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       875
       875
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       876
       876
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       877
       877
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       878
       878
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       879
       879
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       880
       880
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       881
       881
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       882
       882
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       883
       883
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       884
       884
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       885
       885
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       886
       886
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       887
       887
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       888
       888
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       889
       889
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       890
       890
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       891
       891
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       892
       892
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       893
       893
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       894
       894
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       895
       895
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       896
       896
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       897
       897
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       898
       898
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       899
       899
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       900
       900
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       901
       901
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       902
       902
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       903
       903
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       904
       904
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       905
       905
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       906
       906
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       907
       907
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       908
       908
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       909
       909
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       910
       910
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       911
       911
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       912
       912
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       913
       913
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       914
       914
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       915
       915
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       916
       916
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       917
       917
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       918
       918
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       919
       919
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       920
       920
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       921
       921
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       922
       922
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       923
       923
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       924
       924
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       925
       925
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       926
       926
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       927
       927
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       928
       928
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       929
       929
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       930
       930
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       931
       931
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       932
       932
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       933
       933
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       934
       934
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       935
       935
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       936
       936
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       937
       937
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       938
       938
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       939
       939
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       940
       940
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       941
       941
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       942
       942
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       943
       943
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       944
       944
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       945
       945
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       946
       946
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       947
       947
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       948
       948
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       949
       949
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       950
       950
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       951
       951
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       952
       952
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       953
       953
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       954
       954
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       955
       955
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       956
       956
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       957
       957
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       958
       958
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       959
       959
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       960
       960
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       961
       961
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       962
       962
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       963
       963
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       964
       964
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       965
       965
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       966
       966
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       967
       967
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       968
       968
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       969
       969
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       970
       970
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       971
       971
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       972
       972
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       973
       973
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       974
       974
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       975
       975
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       976
       976
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       977
       977
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       978
       978
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       979
       979
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       980
       980
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       981
       981
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       982
       982
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       983
       983
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       984
       984
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       985
       985
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       986
       986
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       987
       987
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       988
       988
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       989
       989
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       990
       990
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       991
       991
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       992
       992
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       993
       993
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       994
       994
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       995
       995
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       996
       996
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       997
       997
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       998
       998
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       999
       999
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       1000
       1000
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1001
       1001
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1002
       1002
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1003
       1003
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1004
       1004
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1005
       1005
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1006
       1006
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1007
       1007
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1008
       1008
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1009
       1009
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       1010
       1010
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1011
       1011
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1012
       1012
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1013
       1013
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1014
       1014
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1015
       1015
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1016
       1016
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1017
       1017
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1018
       1018
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1019
       1019
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       1020
       1020
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1021
       1021
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1022
       1022
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1023
       1023
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1024
       1024
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1025
       1025
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1026
       1026
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1027
       1027
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1028
       1028
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1029
       1029
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1030
       1030
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1031
       1031
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1032
       1032
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1033
       1033
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1034
       1034
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1035
       1035
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1036
       1036
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1037
       1037
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1038
       1038
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1039
       1039
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1040
       1040
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1041
       1041
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1042
       1042
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1043
       1043
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1044
       1044
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1045
       1045
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1046
       1046
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1047
       1047
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1048
       1048
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1049
       1049
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1050
       1050
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1051
       1051
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1052
       1052
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1053
       1053
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1054
       1054
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1055
       1055
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1056
       1056
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1057
       1057
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1058
       1058
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1059
       1059
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1060
       1060
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1061
       1061
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1062
       1062
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1063
       1063
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1064
       1064
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1065
       1065
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       1066
       1066
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       1067
       1067
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       1068
       1068
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       1069
       1069
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       1070
       1070
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       1071
       1071
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       1072
       1072
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       1073
       1073
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       1074
       1074
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1075
       1075
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1076
       1076
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1077
       1077
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1078
       1078
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1079
       1079
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1080
       1080
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       1081
       1081
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1082
       1082
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1083
       1083
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1084
       1084
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1085
       1085
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1086
       1086
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1087
       1087
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1088
       1088
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1089
       1089
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1090
       1090
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       1091
       1091
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1092
       1092
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1093
       1093
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1094
       1094
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1095
       1095
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1096
       1096
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1097
       1097
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1098
       1098
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1099
       1099
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1100
       1100
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       1101
       1101
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1102
       1102
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1103
       1103
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1104
       1104
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1105
       1105
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1106
       1106
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1107
       1107
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1108
       1108
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1109
       1109
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1110
       1110
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1111
       1111
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1112
       1112
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1113
       1113
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1114
       1114
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1115
       1115
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1116
       1116
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1117
       1117
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1118
       1118
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1119
       1119
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1120
       1120
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1121
       1121
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1122
       1122
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1123
       1123
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1124
       1124
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1125
       1125
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1126
       1126
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1127
       1127
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1128
       1128
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1129
       1129
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1130
       1130
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1131
       1131
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1132
       1132
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1133
       1133
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1134
       1134
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1135
       1135
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1136
       1136
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1137
       1137
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1138
       1138
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1139
       1139
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1140
       1140
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1141
       1141
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1142
       1142
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1143
       1143
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1144
       1144
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1145
       1145
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1146
       1146
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1147
       1147
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1148
       1148
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1149
       1149
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1150
       1150
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1151
       1151
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       1152
       1152
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1153
       1153
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1154
       1154
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1155
       1155
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       1156
       1156
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       1157
       1157
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       1158
       1158
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       1159
       1159
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       1160
       1160
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       1161
       1161
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       1162
       1162
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       1163
       1163
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       1164
       1164
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1165
       1165
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1166
       1166
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1167
       1167
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1168
       1168
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1169
       1169
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1170
       1170
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1171
       1171
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       1172
       1172
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1173
       1173
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1174
       1174
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1175
       1175
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1176
       1176
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1177
       1177
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1178
       1178
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1179
       1179
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1180
       1180
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1181
       1181
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       1182
       1182
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1183
       1183
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1184
       1184
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1185
       1185
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1186
       1186
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1187
       1187
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1188
       1188
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1189
       1189
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1190
       1190
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1191
       1191
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1192
       1192
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1193
       1193
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1194
       1194
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1195
       1195
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1196
       1196
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1197
       1197
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1198
       1198
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1199
       1199
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1200
       1200
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1201
       1201
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1202
       1202
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1203
       1203
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1204
       1204
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1205
       1205
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1206
       1206
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1207
       1207
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1208
       1208
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1209
       1209
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1210
       1210
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1211
       1211
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1212
       1212
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1213
       1213
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1214
       1214
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1215
       1215
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1216
       1216
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1217
       1217
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1218
       1218
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1219
       1219
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1220
       1220
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1221
       1221
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1222
       1222
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1223
       1223
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1224
       1224
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1225
       1225
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1226
       1226
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1227
       1227
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1228
       1228
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1229
       1229
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1230
       1230
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1231
       1231
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1232
       1232
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       1233
       1233
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1234
       1234
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1235
       1235
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1236
       1236
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1237
       1237
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1238
       1238
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1239
       1239
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1240
       1240
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1241
       1241
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1242
       1242
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       1243
       1243
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1244
       1244
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1245
       1245
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       1246
       1246
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       1247
       1247
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       1248
       1248
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       1249
       1249
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       1250
       1250
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       1251
       1251
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       1252
       1252
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       1253
       1253
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       1254
       1254
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1255
       1255
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1256
       1256
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1257
       1257
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1258
       1258
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1259
       1259
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1260
       1260
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1261
       1261
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1262
       1262
       -
       %{w: 1, x: 0, y: 0, z: 306550811}

     

       1263
       1263
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1264
       1264
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1265
       1265
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1266
       1266
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1267
       1267
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1268
       1268
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1269
       1269
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1270
       1270
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1271
       1271
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1272
       1272
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1273
       1273
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1274
       1274
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1275
       1275
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1276
       1276
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1277
       1277
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1278
       1278
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1279
       1279
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1280
       1280
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1281
       1281
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1282
       1282
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1283
       1283
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1284
       1284
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1285
       1285
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1286
       1286
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1287
       1287
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1288
       1288
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1289
       1289
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1290
       1290
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1291
       1291
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1292
       1292
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1293
       1293
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1294
       1294
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1295
       1295
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1296
       1296
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1297
       1297
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1298
       1298
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1299
       1299
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1300
       1300
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1301
       1301
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1302
       1302
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1303
       1303
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1304
       1304
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1305
       1305
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1306
       1306
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1307
       1307
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1308
       1308
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1309
       1309
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1310
       1310
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1311
       1311
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1312
       1312
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1313
       1313
       -
       %{w: 4, x: 0, y: 0, z: 306550811}

     

       1314
       1314
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1315
       1315
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1316
       1316
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1317
       1317
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1318
       1318
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1319
       1319
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1320
       1320
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1321
       1321
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1322
       1322
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1323
       1323
       -
       %{w: 3, x: 0, y: 0, z: 306550811}

     

       1324
       1324
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1325
       1325
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1326
       1326
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1327
       1327
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1328
       1328
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1329
       1329
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1330
       1330
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1331
       1331
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1332
       1332
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1333
       1333
       -
       %{w: 2, x: 0, y: 0, z: 306550811}

     

       1334
       1334
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1335
       1335
       -
       %{w: 9, x: 1, y: 24, z: 306550814}

     

       1336
       1336
       -
       %{w: 8, x: 1, y: 23, z: 306550813}

     

       1337
       1337
       -
       %{w: 7, x: 1, y: 22, z: 306550812}

     

       1338
       1338
       -
       %{w: 6, x: 1, y: 21, z: 306550811}

     

       1339
       1339
       -
       %{w: 5, x: 1, y: 20, z: 306550810}

     

       1340
       1340
       -
       %{w: 4, x: 1, y: 19, z: 306550809}

     

       1341
       1341
       -
       %{w: 3, x: 1, y: 18, z: 306550808}

     

       1342
       1342
       -
       %{w: 2, x: 1, y: 17, z: 306550807}

     

       1343
       1343
       -
       %{w: 1, x: 1, y: 16, z: 306550806}

     

       1344
       1344
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1345
       1345
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1346
       1346
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1347
       1347
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1348
       1348
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1349
       1349
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1350
       1350
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1351
       1351
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1352
       1352
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1353
       1353
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1354
       1354
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1355
       1355
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1356
       1356
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1357
       1357
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1358
       1358
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1359
       1359
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1360
       1360
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1361
       1361
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1362
       1362
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1363
       1363
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1364
       1364
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1365
       1365
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1366
       1366
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1367
       1367
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1368
       1368
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1369
       1369
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1370
       1370
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1371
       1371
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1372
       1372
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1373
       1373
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1374
       1374
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1375
       1375
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1376
       1376
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1377
       1377
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1378
       1378
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1379
       1379
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1380
       1380
       -
       %{w: 9, x: 1, y: 24, z: 7970321110}

     

       1381
       1381
       -
       %{w: 8, x: 1, y: 23, z: 7970321109}

     

       1382
       1382
       -
       %{w: 7, x: 1, y: 22, z: 7970321108}

     

       1383
       1383
       -
       %{w: 6, x: 1, y: 21, z: 7970321107}

     

       1384
       1384
       -
       %{w: 5, x: 1, y: 20, z: 7970321106}

     

       1385
       1385
       -
       %{w: 4, x: 1, y: 19, z: 7970321105}

     

       1386
       1386
       -
       %{w: 3, x: 1, y: 18, z: 7970321104}

     

       1387
       1387
       -
       %{w: 2, x: 1, y: 17, z: 7970321103}

     

       1388
       1388
       -
       %{w: 1, x: 1, y: 16, z: 7970321102}

     

       1389
       1389
       -
       %{w: 9, x: 1, y: 24, z: 7970321084}

     

       1390
       1390
       -
       %{w: 8, x: 1, y: 23, z: 7970321083}

     

       1391
       1391
       -
       %{w: 7, x: 1, y: 22, z: 7970321082}

     

       1392
       1392
       -
       %{w: 6, x: 1, y: 21, z: 7970321081}

     

       1393
       1393
       -
       %{w: 5, x: 1, y: 20, z: 7970321080}

     

       1394
       1394
       -
       %{w: 4, x: 0, y: 0, z: 306550810}

     

       1395
       1395
       -
       %{w: 3, x: 1, y: 18, z: 7970321078}

     

       1396
       1396
       -
       %{w: 2, x: 1, y: 17, z: 7970321077}

     

       1397
       1397
       -
       %{w: 1, x: 1, y: 16, z: 7970321076}

     

       1398
       1398
       -
       %{w: 9, x: 1, y: 24, z: 7970321084}

     

       1399
       1399
       -
       %{w: 8, x: 1, y: 23, z: 7970321083}

     

       1400
       1400
       -
       %{w: 7, x: 1, y: 22, z: 7970321082}

     

       1401
       1401
       -
       %{w: 6, x: 1, y: 21, z: 7970321081}

     

       1402
       1402
       -
       %{w: 5, x: 1, y: 20, z: 7970321080}

     

       714
       714
       +
       {:module, ALU, <<70, 79, 82, 49, 0, 0, 10, ...>>, {:solve, 4}}

     

       715
       715
       +
       ```

     

       716
       716
       +
       

     

       717
       717
       +
       ## Part 1

     

       718
       718
       +
       

     

       719
       719
       +
       ```elixir

     

       720
       720
       +
       ALU.solve(params, 9..1//-1)

     

       721
       721
       +
       ```

     

       722
       722
       +
       

     

       723
       723
       +
       <!-- livebook:{"output":true} -->

     

       724
       724
       +
       

     

       725
       725
       +
       ```

     

       726
       726
       +
       41299994879959

     

       727
       727
       +
       ```

     

       728
       728
       +
       

     

       729
       729
       +
       ## Part 2

     

       730
       730
       +
       

     

       731
       731
       +
       ```elixir

     

       732
       732
       +
       ALU.solve(params, 1..9)

     

       733
       733
       +
       ```

     

       734
       734
       +
       

     

       735
       735
       +
       <!-- livebook:{"output":true} -->

     

       736
       736
       +
       

     

       737
       737
       +
       ```

     

       738
       738
       +
       11189561113216

     

       1403
       739
        
       ```

+35 -1

2024/day01.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       1
       3
        
       # Day 01

     

       2
       4
        
       

     

       3
       5
        
       ```elixir

     
···

       11
       13
        
       ```elixir

     

       12
       14
        
       {:ok, puzzle_input} =

     

       13
       15
        
         KinoAOC.download_puzzle("2024", "1", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "28186   35627\n51854   34597\n19211   51032\n79370   53096\n68126   40302\n43284   25771\n80565   99650\n83151   70796\n91092   74579\n70740   98650\n45166   53096\n24309   45165\n62950   26641\n23291   91017\n56683   53851\n22308   81625\n83150   34155\n87443   91017\n56834   91784\n35159   67595\n10722   83450\n92257   23419\n15995   96671\n89901   39216\n25104   76669\n37075   56652\n15874   66083\n33493   35627\n87420   31838\n11269   91386\n92604   83450\n34888   99650\n49759   40926\n38211   27379\n93866   22096\n88205   66217\n55772   60776\n83556   78255\n22292   50829\n22487   78358\n27260   79702\n74570   90319\n27532   14353\n40720   67595\n99885   65688\n25733   53752\n12466   14411\n88402   40165\n63328   13804\n45165   62461\n24913   94225\n32251   76669\n91004   40165\n48939   45165\n98082   34561\n74569   42932\n99641   54600\n42748   22021\n23376   54490\n38706   69865\n64985   87783\n14431   78715\n37671   94814\n27425   60776\n21801   76669\n96975   33493\n56680   31838\n41265   71129\n99081   32487\n53077   82615\n54490   55624\n22649   60776\n82601   25943\n93133   96412\n77182   78358\n67827   76838\n45976   89107\n20352   89034\n28891   23800\n87739   76669\n47802   99650\n18060   28437\n65882   93980\n53343   13764\n84301   93604\n62547   93479\n79067   45165\n70139   54490\n28158   76669\n71631   39775\n36521   57540\n78928   37888\n75943   39076\n28462   60107\n95828   94225\n49768   73181\n40545   97945\n18963   74260\n17934   63046\n73054   13454\n43170   60924\n90257   28180\n99765   33493\n41380   50296\n24225   62945\n66579   73961\n73361   54622\n26339   91017\n84080   62041\n89322   54600\n84610   18344\n58420   87051\n12253   83450\n25631   91017\n71764   63533\n52908   40165\n56578   46636\n99876   61946\n43934   64469\n78242   11111\n97629   28916\n21477   91017\n97639   64456\n90978   53077\n94412   73836\n49249   96113\n92750   14411\n12961   13764\n84319   22230\n83435   78146\n48951   86109\n40258   13764\n54600   65577\n51432   53096\n11527   20394\n68196   94225\n14939   91017\n13158   39216\n62120   93587\n20939   71764\n58436   28038\n37198   31838\n59152   17554\n52958   44145\n64236   18285\n63763   56578\n40304   99650\n86564   78910\n45684   52760\n43139   61946\n99974   76669\n44698   86004\n19940   22021\n29106   78358\n60431   91386\n50880   76451\n96595   42193\n40966   73961\n64515   61946\n31081   39834\n87614   70892\n82663   54622\n73537   62994\n14125   56652\n51361   35627\n26084   35817\n82915   20069\n72409   22021\n22834   20071\n93476   83787\n63719   53096\n41505   48056\n56055   20404\n37255   99650\n33468   60776\n70472   22598\n66290   53077\n91071   67595\n30888   33173\n60826   29871\n12334   78358\n62744   69424\n85449   79500\n22333   16295\n67621   18455\n12605   90059\n32490   25835\n96639   75870\n82412   39747\n76964   60153\n60776   60776\n68837   39216\n35635   67595\n85239   14964\n15278   83450\n63581   35178\n77006   18285\n88570   80424\n61499   81689\n57466   47392\n78524   84304\n11821   53989\n62425   28916\n36264   50872\n38567   13061\n16357   45165\n17202   94451\n64290   31838\n76075   55071\n87325   40165\n93961   99650\n49866   65601\n91725   14411\n44721   18285\n44065   33493\n22521   56578\n28070   54600\n45621   54600\n54677   26913\n79647   24298\n89613   31415\n86493   13764\n16243   64218\n12832   21187\n43847   35189\n75859   54600\n69276   75826\n43251   14411\n96012   41446\n35482   35817\n45380   82383\n66801   31838\n79199   92341\n33087   70511\n40619   28916\n67655   80670\n22431   60776\n62731   54622\n29873   25771\n99354   63481\n36415   61946\n29742   94919\n64872   53077\n93028   55635\n32784   18285\n87488   68734\n56652   18285\n49968   80712\n82653   53096\n30377   24784\n40120   45165\n88404   70120\n69179   45165\n99645   67595\n44883   45165\n76320   43595\n29057   90019\n28502   61946\n73459   84304\n96354   54622\n77589   14301\n51381   54490\n40490   95808\n36023   27135\n13434   63807\n27250   35627\n13764   32845\n28229   34954\n56430   76669\n98593   63811\n11192   60776\n81601   72265\n86908   77116\n25484   82383\n31115   42206\n75124   70148\n96785   53096\n59814   85995\n17024   57255\n81701   41971\n43938   33493\n91646   33599\n96616   81828\n73270   87775\n75876   35817\n53007   83450\n39527   33975\n35936   17039\n95194   23302\n96876   80147\n68136   91386\n31253   19760\n98767   " <> ...}

     

       14
       23
        
       ```

     

       15
       24
        
       

     

       16
       25
        
       ```elixir

     
···

       26
       35
        
       |> Enum.unzip()

     

       27
       36
        
       ```

     

       28
       37
        
       

     

       38
       38
       +
       <!-- livebook:{"output":true} -->

     

       39
       39
       +
       

     

       40
       40
       +
       ```

     

       41
       41
       +
       {[28186, 51854, 19211, 79370, 68126, 43284, 80565, 83151, 91092, 70740, 45166, 24309, 62950, 23291,

     

       42
       42
       +
         56683, 22308, 83150, 87443, 56834, 35159, 10722, 92257, 15995, 89901, 25104, 37075, 15874, 33493,

     

       43
       43
       +
         87420, 11269, 92604, 34888, 49759, 38211, 93866, 88205, 55772, 83556, 22292, 22487, 27260, 74570,

     

       44
       44
       +
         27532, 40720, 99885, 25733, 12466, 88402, 63328, ...],

     

       45
       45
       +
        [35627, 34597, 51032, 53096, 40302, 25771, 99650, 70796, 74579, 98650, 53096, 45165, 26641, 91017,

     

       46
       46
       +
         53851, 81625, 34155, 91017, 91784, 67595, 83450, 23419, 96671, 39216, 76669, 56652, 66083, 35627,

     

       47
       47
       +
         31838, 91386, 83450, 99650, 40926, 27379, 22096, 66217, 60776, 78255, 50829, 78358, 79702, 90319,

     

       48
       48
       +
         14353, 67595, 65688, 53752, 14411, 40165, ...]}

     

       49
       49
       +
       ```

     

       50
       50
       +
       

     

       29
       51
        
       ## Part 1

     

       30
       52
        
       

     

       31
       53
        
       ```elixir

     
···

       35
       57
        
       |> Enum.sum()

     

       36
       58
        
       ```

     

       37
       59
        
       

     

       60
       60
       +
       <!-- livebook:{"output":true} -->

     

       61
       61
       +
       

     

       62
       62
       +
       ```

     

       63
       63
       +
       1603498

     

       64
       64
       +
       ```

     

       65
       65
       +
       

     

       38
       66
        
       ## Part 2

     

       39
       67
        
       

     

       40
       68
        
       ```elixir

     
···

       46
       74
        
       |> Enum.sum()

     

       47
       75
        
       ```

     

       48
       76
        
       

     

       49
       49
       -
       <!-- livebook:{"offset":944,"stamp":{"token":"XCP.kAiLPYFFjB5gittWtRe2qvQNl0eypXdV8-SA_CjsvAhzJAKbzccMdisxMjrJQ8vBacfLZV0B8GUs0xEmkXWg8-XngROm0ts7gOF-jJzV479UO2mEuG9Kxiw_9tiicWt0mN8","version":2}} -->

     

       77
       77
       +
       <!-- livebook:{"output":true} -->

     

       78
       78
       +
       

     

       79
       79
       +
       ```

     

       80
       80
       +
       25574739

     

       81
       81
       +
       ```

     

       82
       82
       +
       

     

       83
       83
       +
       <!-- livebook:{"offset":6294,"stamp":{"token":"XCP.Sz2iSQavADDpvtEa1kPPKXU2FJX4whRA8o-9s7dVkXuAtZgcWAfkz84tbAfwi7Uwo2ZHGidQtTuQgV-kqNBK-CR04hZZSMuvCDJWvO3n-0VLRe9_gxnirhNs2i3h2ydu0JE","version":2}} -->

+86 -1

2024/day02.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       1
       3
        
       # Day 02

     

       2
       4
        
       

     

       3
       5
        
       ```elixir

     
···

       13
       15
        
         KinoAOC.download_puzzle("2024", "2", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       16
        
       ```

     

       15
       17
        
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "75 76 77 80 82 85 84\n49 52 53 55 58 59 61 61\n54 57 60 62 66\n4 6 8 10 11 14 19\n82 85 86 83 85 87 89\n85 86 87 86 89 88\n69 72 73 76 77 74 75 75\n4 6 4 5 8 11 15\n6 9 10 12 15 16 15 20\n41 43 43 45 48 51\n48 51 53 53 56 58 59 58\n67 69 71 74 74 77 77\n82 83 85 85 89\n21 24 26 26 29 31 36\n4 7 10 11 15 18 20 21\n56 58 60 63 65 69 70 68\n24 26 30 32 33 35 35\n12 13 15 17 20 24 25 29\n52 53 54 57 58 59 63 68\n43 46 48 55 58 59\n15 16 23 26 27 28 26\n49 50 53 56 59 64 64\n56 58 59 65 69\n3 5 6 8 13 18\n45 44 46 47 50 52 54\n37 35 36 37 34\n53 50 51 53 54 56 56\n80 78 79 80 81 83 86 90\n32 31 34 37 40 45\n76 75 77 79 77 80\n26 25 22 24 23\n27 26 23 24 25 25\n96 93 96 93 97\n37 34 35 36 39 36 38 45\n68 65 66 67 67 70 72\n41 39 42 42 43 40\n88 86 89 90 90 91 93 93\n24 23 25 26 26 28 32\n79 77 77 80 83 88\n50 48 50 52 55 58 62 63\n39 38 39 41 45 47 48 45\n40 38 41 42 44 45 49 49\n50 49 53 56 60\n74 73 77 80 86\n40 37 38 39 42 48 49 50\n12 11 17 20 22 23 25 23\n74 71 73 75 80 83 83\n20 17 23 25 29\n32 30 37 39 42 48\n80 80 83 86 87\n73 73 76 78 80 83 85 82\n19 19 22 25 28 30 32 32\n43 43 46 49 53\n69 69 72 75 80\n24 24 25 22 25 27\n60 60 58 61 64 65 62\n52 52 50 51 53 55 55\n56 56 59 56 60\n37 37 38 36 38 45\n7 7 9 12 12 13 14 16\n52 52 55 57 57 56\n89 89 89 91 91\n7 7 7 10 13 15 17 21\n43 43 44 47 50 50 52 58\n4 4 5 9 10 11 14 17\n11 11 13 17 15\n7 7 11 14 14\n55 55 58 62 64 66 70\n75 75 78 79 81 85 88 94\n56 56 63 64 67\n5 5 7 10 12 13 18 16\n32 32 38 41 43 44 47 47\n36 36 43 44 48\n9 9 12 17 22\n11 15 16 18 20 21 23 26\n50 54 55 57 60 62 64 61\n86 90 92 94 95 95\n84 88 90 93 97\n3 7 9 12 15 21\n36 40 41 44 47 46 47 50\n39 43 45 43 46 47 50 47\n84 88 90 87 90 90\n2 6 7 4 6 10\n31 35 34 35 36 39 45\n11 15 15 16 18\n1 5 7 9 11 14 14 13\n54 58 60 60 63 63\n52 56 58 60 60 64\n61 65 65 66 71\n48 52 55 56 60 61\n77 81 84 88 89 86\n58 62 63 66 67 71 74 74\n71 75 78 81 82 84 88 92\n82 86 87 91 98\n41 45 48 50 55 58 61\n70 74 77 78 83 86 88 85\n71 75 82 84 84\n19 23 30 31 35\n59 63 70 72 77\n45 51 53 55 56\n8 14 16 19 17\n46 52 55 58 58\n71 77 79 82 84 87 88 92\n68 75 77 80 87\n29 35 38 35 36 38 39\n34 39 38 41 43 45 42\n26 33 35 34 36 39 41 41\n85 92 95 92 96\n33 38 40 39 40 41 48\n83 89 92 93 93 94 95 96\n85 92 95 95 97 96\n54 59 59 60 61 62 64 64\n27 34 35 37 37 41\n69 75 77 79 81 81 86\n25 30 31 32 36 38\n51 58 62 63 64 63\n54 61 62 65 69 72 74 74\n59 66 68 69 73 76 79 83\n14 19 20 24 30\n33 40 42 48 51 52\n28 33 36 37 42 45 43\n44 50 55 58 58\n14 21 22 29 30 34\n35 40 43 49 52 53 59\n63 61 58 56 54 51 53\n52 49 46 45 45\n74 72 69 68 67 63\n80 77 74 73 72 67\n77 74 76 73 70 68 67\n20 17 16 15 17 19\n45 42 41 38 36 35 38 38\n55 54 56 53 49\n20 18 17 15 14 16 10\n17 14 14 12 10 8 6\n72 71 69 68 66 66 63 65\n31 30 30 27 26 25 24 24\n51 49 48 48 47 43\n26 24 24 21 20 14\n19 18 14 13 10 8\n84 81 80 76 78\n47 45 41 38 35 35\n68 67 64 60 56\n74 71 68 66 62 60 54\n43 41 38 36 33 27 26\n63 60 53 51 54\n29 28 23 20 17 16 14 14\n46 45 42 39 34 31 30 26\n23 21 19 13 11 5\n27 29 26 24 23 22 19\n86 88 86 83 81 79 81\n57 59 57 54 52 50 47 47\n21 24 21 18 14\n61 63 62 61 59 57 50\n96 99 97 98 96 95 92\n66 69 71 69 71\n41 43 42 39 37 40 37 37\n79 82 85 84 80\n77 79 77 78 73\n22 24 24 22 20\n63 66 64 64 66\n19 22 22 21 18 18\n95 97 97 95 93 91 87\n32 33 31 29 29 28 25 18\n42 44 43 39 38 36 34 31\n27 29 27 24 22 18 20\n20 22 18 15 15\n68 69 65 63 59\n79 81 77 76 73 72 67\n68 70 69 63 62 60 59 56\n42 44 39 36 33 36\n88 90 87 82 81 79 79\n66 69 66 59 58 54\n70 71 70 68 66 60 54\n77 77 76 74 72 71 69 66\n43 43 40 37 34 33 36\n21 21 20 18 18\n34 34 32 29 27 25 22 18\n79 79 78 76 73 66\n89 89 92 90 88\n77 77 75 73 72 73 76\n84 84 83 85 85\n30 30 28 26 23 22 25 21\n22 22 25 23 21 20 15\n66 66 66 64 63 62 60 57\n75 75 73 70 67 67 68\n33 33 33 30 27 25 22 22\n55 55 52 50 50 46\n40 40 38 38 37 32\n63 63 62 58 55\n95 95 94 90 92\n87 87 85 82 78 78\n88 88 84 83 79\n85 85 83 79 73\n53 53 51 44 42\n12 12 7 5 4 6\n53 53 48 47 44 44\n35 35 32 25 22 18\n46 46 39 36 34 27\n26 22 21 19 18 15\n91 87 86 85 83 85\n24 20 17 15 14 14\n66 62 60 57 54 50\n67 63 62 60 59 57 51\n41 37 35 38 37 36 33 31\n18 14 15 12 9 8 5 8\n37 33 32 30 29 30 30\n70 66 64 63 60 61 58 54\n34 30 28 26 23 26 24 18\n28 24 22 19 16 16 15\n54 50 50 48 47 44 41 43\n82 78 75 75 75\n38 34 34 33 30 29 25\n52 48" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       16
       25
        
       ```elixir

     

       17
       26
        
       inputs =

     

       18
       27
        
         puzzle_input

     
···

       24
       33
        
         end)

     

       25
       34
        
       ```

     

       26
       35
        
       

     

       36
       36
       +
       <!-- livebook:{"output":true} -->

     

       37
       37
       +
       

     

       38
       38
       +
       ```

     

       39
       39
       +
       [

     

       40
       40
       +
         ~c"KLMPRUT",

     

       41
       41
       +
         ~c"1457:;==",

     

       42
       42
       +
         ~c"69<>B",

     

       43
       43
       +
         [4, 6, 8, 10, 11, 14, 19],

     

       44
       44
       +
         ~c"RUVSUWY",

     

       45
       45
       +
         ~c"UVWVYX",

     

       46
       46
       +
         ~c"EHILMJKK",

     

       47
       47
       +
         [4, 6, 4, 5, 8, 11, 15],

     

       48
       48
       +
         [6, 9, 10, 12, 15, 16, 15, 20],

     

       49
       49
       +
         ~c")++-03",

     

       50
       50
       +
         ~c"03558:;:",

     

       51
       51
       +
         ~c"CEGJJMM",

     

       52
       52
       +
         ~c"RSUUY",

     

       53
       53
       +
         [21, 24, 26, 26, 29, 31, 36],

     

       54
       54
       +
         [4, 7, 10, 11, 15, 18, 20, 21],

     

       55
       55
       +
         ~c"8:<?AEFD",

     

       56
       56
       +
         [24, 26, 30, 32, 33, 35, 35],

     

       57
       57
       +
         [12, 13, 15, 17, 20, 24, 25, 29],

     

       58
       58
       +
         ~c"4569:;?D",

     

       59
       59
       +
         ~c"+.07:;",

     

       60
       60
       +
         [15, 16, 23, 26, 27, 28, 26],

     

       61
       61
       +
         ~c"1258;@@",

     

       62
       62
       +
         ~c"8:;AE",

     

       63
       63
       +
         [3, 5, 6, 8, 13, 18],

     

       64
       64
       +
         ~c"-,./246",

     

       65
       65
       +
         ~c"%#$%\"",

     

       66
       66
       +
         ~c"5235688",

     

       67
       67
       +
         ~c"PNOPQSVZ",

     

       68
       68
       +
         [32, 31, 34, 37, 40, 45],

     

       69
       69
       +
         ~c"LKMOMP",

     

       70
       70
       +
         [26, 25, 22, 24, 23],

     

       71
       71
       +
         [27, 26, 23, 24, 25, 25],

     

       72
       72
       +
         ~c"`]`]a",

     

       73
       73
       +
         ~c"%\"#$'$&-",

     

       74
       74
       +
         ~c"DABCCFH",

     

       75
       75
       +
         ~c")'**+(",

     

       76
       76
       +
         ~c"XVYZZ[]]",

     

       77
       77
       +
         [24, 23, 25, 26, 26, 28, 32],

     

       78
       78
       +
         ~c"OMMPSX",

     

       79
       79
       +
         ~c"20247:>?",

     

       80
       80
       +
         ~c"'&')-/0-",

     

       81
       81
       +
         ~c"(&)*,-11",

     

       82
       82
       +
         ~c"2158<",

     

       83
       83
       +
         ~c"JIMPV",

     

       84
       84
       +
         ~c"(%&'*012",

     

       85
       85
       +
         [12, 11, 17, 20, ...],

     

       86
       86
       +
         ~c"JGIKPSS",

     

       87
       87
       +
         [20, 17, ...],

     

       88
       88
       +
         [32, ...],

     

       89
       89
       +
         ~c"PPSVW",

     

       90
       90
       +
         ...

     

       91
       91
       +
       ]

     

       92
       92
       +
       ```

     

       93
       93
       +
       

     

       27
       94
        
       ```elixir

     

       28
       95
        
       defmodule Day02 do

     

       29
       96
        
         def correct?([a, b | _] = input) do

     
···

       37
       104
        
       end

     

       38
       105
        
       ```

     

       39
       106
        
       

     

       107
       107
       +
       <!-- livebook:{"output":true} -->

     

       108
       108
       +
       

     

       109
       109
       +
       ```

     

       110
       110
       +
       {:module, Day02, <<70, 79, 82, 49, 0, 0, 9, ...>>, {:correct?, 1}}

     

       111
       111
       +
       ```

     

       112
       112
       +
       

     

       40
       113
        
       ## Part 1

     

       41
       114
        
       

     

       42
       115
        
       ```elixir

     

       43
       116
        
       Enum.count(inputs, &Day02.correct?/1)

     

       44
       117
        
       ```

     

       45
       118
        
       

     

       119
       119
       +
       <!-- livebook:{"output":true} -->

     

       120
       120
       +
       

     

       121
       121
       +
       ```

     

       122
       122
       +
       479

     

       123
       123
       +
       ```

     

       124
       124
       +
       

     

       46
       125
        
       ## Part 2

     

       47
       126
        
       

     

       48
       127
        
       ```elixir

     
···

       53
       132
        
       end)

     

       54
       133
        
       ```

     

       55
       134
        
       

     

       56
       56
       -
       <!-- livebook:{"offset":1095,"stamp":{"token":"XCP.EDLheuV1bFdj8dcA62THFYEnpGMMQhndPyDclGgiuluufI8nGaZSSck2Zkh1QsI2YzHSIIw7X4Z8X4n_sgLE0sPJr4ahqOV5-G9t1bfxRG4kZgo2wsY4xf7SvIl1diXFy1k","version":2}} -->

     

       135
       135
       +
       <!-- livebook:{"output":true} -->

     

       136
       136
       +
       

     

       137
       137
       +
       ```

     

       138
       138
       +
       531

     

       139
       139
       +
       ```

     

       140
       140
       +
       

     

       141
       141
       +
       <!-- livebook:{"offset":6719,"stamp":{"token":"XCP.G9JOBFd6jltWt-jkW37gzAIiay7brKZPFEBwgZCNOwBJpPmDyHp2GNGrNOADiSuyHghh61GSONlBGBUhRAPkPyonpwEHNjQtjnNbJGdA9f5v976Ir8CzhrtsvgWjFZ82wsQ","version":2}} -->

+59

2024/day03.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 03

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIzIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "3", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "(%%from() when()mul(73,623)when()mul(793,458)'~where()how()?how(569,237)/[mul(709,198)mul(395,622)$!what()select()^@/what()+mul(970,343)mul(75,7)^))mul(61,40)select()~why())'>where()%+mul(892,307),!(mul(412,807):*&what()+^why()<^why()mul(706,931)'{who())why()^?mul(953,62)(mul(461,410)when()don't()>^@<%who()'mul(365,15)(<^<# (where()mul(802,710)why()*[(  where()where()mul(684,352)&)&what()^<[>mul(246,913)+select()?how(489,271)when() }why(627,30);don't()+&<@where()when()mul(636,990)]/mul(767,759):mul(328,474)([^,-select()?(mul(825,353)select()where()*where()what()*-@mul(765,991)where(786,744)'--where()mul(990,947) mul(547,706)from()?mul(229,193)where(617,453)+@&where()]@%}/mul(128,550)<%mul(3,636)don't()^(+#>+mul(66,503) select()#when()%from()mul(59,150)how(),when()^:mul(614,438)where()*<[where();(mul(434,344) /how()$ (%?~when()mul(659,534)mul(809,367) where(42,397),);? ++select()mul(858,771)<*mul(106,962)^>@;# @?,*mul(208,462)'',)mul(762,748)+[?}>][^mul(126,384))@]): /(('mul(966,704)who()what()~%*]from()mul(825,633)~$)+ &mul(634,698)(how()<@why(102,647)mul(661,112)]&<(%&mul(25,649)who()select();mul(267,405)why(356,766)why()(where(),select()^)mul(552,557){!from()^&>>+mul(493,578)select(742,239):how(){^mul(836,239)who()/)-mul(259,726)how()-;where()[#@from()~mul(495,301);>[;mul(478,953)$#[*why(),{mul(774,653)how()^mul(469,614)!what();-->>;mul(369,74)$who()who()mul(311,382)< ![>?$mul(909,70)!+$how(257,485)<mul(278,404)] where()':mul(824,974)when(),;&@-?~>mul(377,363)where()&why()-/:(mul(285,466)where()(what()why()[where()&who()mul(701,477)(where(),-why(){mul(624,21)where()[,why()-!?+mul(937,219) mul(604,90)how()(')]why()/mul(627,697)*;what()/$select()do()~<from()%-^mul(605,52)>@%!&select()>['mul(597,962)why()where()mul(903,469); &,do()when(937,722)((~why();^mul(588,272);}?[mul(295,621)from(645,893)>]>#mul(900,24)>,;mul(574,932):}(-do()from()-+<'$how()mul(694where())select()){how()how() (mul(350,308)/{)}why()what(987,719)}!#don't();<how()[from()/-'mul(438,672)}!@who() }?)mul(952,413#>:}-: 'when()select()mul(547,749)$#mul(869,866)@{mul(334,736';'select(330,146)[~ :>mul(511,40)(mul(11,3 mul(547,132)[!>select();who()mul(424,102)*!~mul(725,298)~:{^?%*mul(514,355%'],,: -)mul(116,719)select()?/@;when()<who();!mul(352,211)+#$;{$>]mul(820,414)&when(),!?[:?don't()when()?>}+#how()mul(159$$},:]why()-mul(689,30)@^mul(310,593)where(800,717)^(/*/! from()<mul(7,727)select()&mul(259,310)where()^select()#@how(49,595)what(){>]mul(429,841)(-+#[mul(579,668)>what()&+,mul(850,283)don't()#?mul(758,673)^;)select(856,890)%:how(550,676)<,)mul(667,314)>:[;+mul(760,374)select();}*select()#how()$*mul(347,822)who()how(){mul(497,700):where(){what()mul(851,789)^:}when()why()where()(:mul(991,536)-mul(711,63)',(  who()]mul(798,573)>mul(190,153)$]from()!mul(592,256)-$-]mul(734?mul(482,742)#;mul(939,69)how()([how()<what()$$who()why()mul(149,831))/'when()mul(152,123)+* ','$where()mul(774,252) ;@?,;don't()how()>(mul(933,652)}mul(882,656),?how()#%}do()!select()>}>mul(981,750)mul(927,646)!what()$mul(380why()$]/[*?+)mul(67,435)>select()@-mul(819,795)?/? how())mul(215,234){,#/>how(513,708)'~>do()#}^^mul#how()how()how()+when():mul(992,63)mul(526,962)where()}who()who()+&'<,mul(730,728)}/,select()what()*who())[mul(687,974)-<:mul(259,420)\nwho()(&?>'+:?mul(483,827)*!what()[!/*mul(368,168)!&;^)?mul(629,217)]^{what()!,who()mul(83,255)^)mul(500,689)!-mul(592,556)%select()}from()-+mul(946*who()?,from()%/'~from(619,712){mul(747,249)/@+%when())mul(762,891)what(),when()?,#<:[mul(873,69)+ :what()+how()&[}who()mul(591,81){when()mul(151,432)@<what()-@]do()/mul(233,269)%&![+where()what()-why()mul(402,497):@from()where()':(how()mul(520,79)!]^$<select()when(478,105)mul(340,948),(mul(410,461)select()from()]-(@who()who())]mul(511,538)!who(6,403)do()<(where()what()mul(443,727)when()where()?&where()~mul(302,402)&mul(599,23))[how()[+!{mul(823,16)#%#]+~who(942,742))how()mul(502,890)^;<where()from()!~;+;mul*$<;mul(25,421)/:where() {^who()mul(652,45)#?from()^~; ,<mul(783,401)?who()what()mul(828,237)!]^when(126,561)mul(724,536){<*?don't()])why()/mul(974,752)%]$})mul(688,4)!'#:'@$mul(115,891)['w" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ## Part 1

     

       26
       26
       +
       

     

       27
       27
       +
       ```elixir

     

       28
       28
       +
       Regex.scan(~r/mul\((\d{1,3}),(\d{1,3})\)/, puzzle_input)

     

       29
       29
       +
       |> Enum.reduce(0, fn [_, a, b], acc ->

     

       30
       30
       +
         acc + String.to_integer(a) * String.to_integer(b)

     

       31
       31
       +
       end)

     

       32
       32
       +
       ```

     

       33
       33
       +
       

     

       34
       34
       +
       <!-- livebook:{"output":true} -->

     

       35
       35
       +
       

     

       36
       36
       +
       ```

     

       37
       37
       +
       175615763

     

       38
       38
       +
       ```

     

       39
       39
       +
       

     

       40
       40
       +
       ## Part 2

     

       41
       41
       +
       

     

       42
       42
       +
       ```elixir

     

       43
       43
       +
       Regex.scan(~r/do(n't)?\(\)|mul\((\d{1,3}),(\d{1,3})\)/, puzzle_input)

     

       44
       44
       +
       |> Enum.reduce({true, 0}, fn

     

       45
       45
       +
         ["do()" | _], {_, sum} -> {true, sum}

     

       46
       46
       +
         ["don't()" | _], {_, sum} -> {false, sum}

     

       47
       47
       +
         [_, _, a, b], {true, sum} -> {true, sum + String.to_integer(a) * String.to_integer(b)}

     

       48
       48
       +
         _, {false, sum} -> {false, sum}

     

       49
       49
       +
       end)

     

       50
       50
       +
       |> elem(1)

     

       51
       51
       +
       ```

     

       52
       52
       +
       

     

       53
       53
       +
       <!-- livebook:{"output":true} -->

     

       54
       54
       +
       

     

       55
       55
       +
       ```

     

       56
       56
       +
       74361272

     

       57
       57
       +
       ```

     

       58
       58
       +
       

     

       59
       59
       +
       <!-- livebook:{"offset":5260,"stamp":{"token":"XCP.aQCtuOA8woZ8_dCh-CI-OBSmlZ8-Kijxv-o6-KCS1J1zV2Ss2XT0dAkjFQeBxaoOH4bK9wrXdti0oBVzJ_CMqYHK_tz9j2KoN0reYeRd-HZeaNGz06-DbmfbvmwyNem79PU","version":2}} -->

+204

2024/day04.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 04

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, :nx])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI0Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "4", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "MASAMXMSSXXMAMXXMXMASXMASXMMSMSMMMAXMASASMMSSMSXAXMASMMSMMMSSMSASMSSSSMSMSMXXMXMAXAMXMSMSSXSAMXMSSXSXSXMASXMSASXMMXSXMSSSSSXSAMMAMXSXXMAAXSA\nMASMMXMASAXASMSMMMSAMXSMSAMXAAAAAXAMXASXAMAAAAMMSMMMMMASXAAAAMMAMAMMASAAAAXMXMSSSSSSMMSAMAXAXXSMAMSAMXASAXXASAMXASAMAXXMASAAAMAMAXXMASXSXSXS\nMMXAXMMMSXMAMAAXAAXAAAXXSMMSMSMSMXAXMXSMMMMSSMXAMXAAXMAMMMMSSMMAMAMMAMMMMMXSAAXAAMMAXXSAMXMSMAXMAMSMSSXMASMMMSXSXMAXMMSMMMMMMSASMSXMAMAXXSAM\nSXSAMASASMSXMSMSMSSMMMMMMXAMXMMXMASMMMMAXXAAAMMMSSSSSMASXXAAXASMSXXMXSXSXSASMSMMSMSAMMMAMXAAMASXMMSXMXMMMXASAXMSAASAMXSAAMXSXMASAXMMXSMSMMAM\nAAAXXXMASASXMXMAXXMMASAASMXSASASXAAAAMSSMMMSXMAAMMMMMXAXMMMMSAMXAMASAMXSAMASXXAXAAMAMXSAMXSXSMMASAMSMASAAMSMMSSXMAXASASMMSAMASAMAMSMAAXMASXM\nMSMMXXMMMAMAMMMMMMXSAXXAMMMMXSAXMMXXAMXAAMMXMASXMAAASMMXAAMXAXAMMMAMAMAMAMXMASXMMXMAAXMAXMAMXMSAMASXMAXMSXMAMXXXMASAMAMAXMMMAAXXAAAMXSXMMMAS\nMXAXAMXXMMMMSAMAASMMMSMMASASAMAMAXMSXMSMMXAMXAXMMSSXSASXSSSMAMSMXMXSAMSSSMAMXMXAMAXXMMSAXAXMMXMASMMMMSSMMASAMMAMSMMAMAXSMXXMSSSSSSMXAXMSSMMM\nASXMMXSAMXAASXXMXSAAAXASAMMMASMSSSMAAMMXMMSSMASAMAMMMAMMAXMAXMASXMAXMSAAASASAMXSSMXSAAXSSMXAAXXAXMAMXMAMSMMAXMAAAAMXMAMXASXAMAMXMXMMAXAAXAXS\nMAASMAMMSSMMSMSSXSMMXSMMASMSXMAAASMMMMAAMAMAMXAXAASMSSMMMMXSMSXSMXSXMXMXMSXMASAMAAAMMMMMMXXXSXMASMXMXMMMSXMSAMASMSMAXMASAAMXMMSSMASXXMXMAXMA\nSAMXMXSAXAMASMXAASXSMMAXXMASAMMMMMMXXXSXMASAMXMASXSAAMXXXMMXMXAXMAMAMXXAAMAXAMASMMMSMMXSMMMXMAAMXXAXSXSASASXSMAMAAXMMSMMXMAXSAAAMXSASMSSXSAS\nMMXSSXMXSAMASXXMXMAXAXXMSMMMXSAMXXMSXMMASXSXSXXAXMMMMMXMAXAMXMMMMASAMXSMSSSMSMMMMMAXXMAXAAAAXXSXXSASXAMAXXMAXMAMSMMSASXMAXMXMMSXSAMXMAAXASAM\nASAMXAMXSXMAMMMXAMSSSMSAXXXMSXASASXXAASAMXMAMAMSXXAXASASASXXSAAAMASAMAXXAAAMXASXSMXXAMASMMSMSAMAMXXXMMMSMXMMMXMXAAAMXSASXSSSXAAAMMAMMMMMAMAM\nMMMSSXMXMAMXMSMXMSAAAAMMMXMSMSMMAAMSSMXAMMMAMXMXXSXSMSAMXSMAMSXSXAXAMSMMMSMMSAMAXAMXXAXXXAAAMXXMMSMMMSAMXXSASASXSMMXMSAMAAAAMMSXMAAMAMAMXMAM\nXXAXMASMSAMAAAAASMMMMXMASMMAAAXMAMAAMMMSAMSAMSAXMAAMMMAMXMMMMAXXAMXSMMSMAXXXXAMSMMSASMMMMSMXMSMMAAAAAMMMXMMAMASAMAAAXMSMMMMMXXMASXSSSSXSASAS\nSASAMXMAMMSASMSMXASMMASXSASMSSXSAMMXAAAASASAMXMXAXMSASASMXAAMMSMMSAMXAAMASMMSMMXAXMXXAAXXAAASAAMSSSMSXMXSAMAMAMASMSMSAMXMMASMMXMMAAAAXASMSSM\nXAMASXSXSASAXMXMSXMASAXASMSAAXXMAMSSSMSAXMMMSAMXMSASASAMAMMMSAAMAMASMSXSAXAMAMXMXMASXSMMSXSXMAXMAAXAMASXMAMXSXMXMXAXMAMAMAAAXMSXMMMMMMXMXXXM\nMMMASMAAMMMAMASASAMXMASMMAMMMMMXMMXAMAMXMAAXMAXXXMAMXMMMSSMAMMXMXSXMAXMMMSSSXSMSAMXSAXMASMMMASXMXSXXXAMAXAMMSASMSSSMSASASMXSAMAMXXAASXMMSASX\nAXMAXXMXMXSAMMMAMAMXMXAMXSMSXASASMMAMXMSSXMSXSAMXMXMMXSXAAXMASXMXAMSXSAAXXAXXXAAXAAMMMXXMAMMAMAAAMMSMSSMMSSMSAMAAAAASASASAMXXAXMMSAXSAAXMASX\nSXMASXXXMAXASMMMMMSXMMASXAAXSXSXSASMMASMSAXMAXAMXXMAMASMSSMMAXAAASASASMMAAMMXMSMSMXSAMXMXSXMASMMMSAXMMAXSMAMMXMMMSMMMAMAMXMAMXMAMAMMSXMXMXMX\nMAMMAMXAMXSSMMXAAXAMASAMXMMASXSXSAMMSMSAXMASASAMMMAAMAXAMXXMMSMMAASMAMMXMMXSAAAAXMASASMMAMXXMAAAXMXSSMXMAXAMXAMSMMMSMSMSMAMMSAXMASAAXMMASAAX\nSAXSAXSXSXMMASMSSMXMMMASXXAAMMMAMAMAAMMMMAMMMMAMAASXMSSSXMAXMAXAXMXMSMAXXAASMMMSMXMSAMXMASMSSSSMMSAXMASAMSMSXMMAAAAAXAAXSAMMMMXXXMMXSMSASMSM\nMAMAXMMMXAASAMAMMMMMSSMSXSMXSAMSMMMSXSASAAXAAMAMSMMAMAAMAMXMSASXSXXXXAMXMMXSMSMXMAMMAMXSASAAXAAAXMAMSAMAXAMSASMSSMSSSMMMSMSAAXSSSXSMXAMXSXMX\nMSMSMMXSMSMMAXMASAMSAMXMASAAMXSAAXAMXSMSSSSSXSAXXXXAMMSMXXSXMASAXXMASAMXMSXXAAAASAXMAMMMMMMMMSAMMAMXMMXSMXMSAMAAAAXXMAXMXMSMMSAMAAMXSAMXXASM\nAMAMAXAMXXXSXMXAXMXMASAMXMMMSMSXSMMSAMXXAXAAXAXMASMSMSMXXXAMMMMMMSMXSMMSAMXMSMSMSMSSMMMASXSSMMXSMAXMASAMXXXMMMMMMXMMSMMSAMXASMAMMSMMAAXXMASM\nXMAMMMXSAMASMAMXSXXSAMAMSMMAAASMXXMAAASMXMMMMMXXXAAAMAMMMXMAAMAMAMXASAAAAMAAAAAMXMMASXSXMAMAAMAMXSXSAMXMAMXSXAMSMSAMAXAXAMAMMSSMXMXAXXMSAMXM\nSMXSAAAMAMAMMSMAXAMMXSAMAAXSMXXASXSMSMAMXAAXMXMMMMSMMAMSAAXSXSAMAMXXSMMSASXSMSMSAMSAMMSAMXMSAMXSAXMMXMAXAMAAMAMAAAXSASMSSMXSAAXMASASAMXSAASM\nAAAAMMSSXMASAAMSXSAMXSXSXSMXMASASAMXMAASASXMXAAXAXAASAXASXMMASXSASMMMXAXXMAAMXXXMMMXMAMAMXMXAMXSAXAXSXMXAMMXSAMMSMMMMSMAMXMMMSSMXAAXAAAMXMXM\nMMMSAAXMMMSMMSSMAMMMMMMMMXAXSXSAMXMAXXXSXAAMSSSXMXSXMXSMMSAMAMAMXSAAAMXMAMMMMMSMSXSMMMXMMAXSAMAMASMXMASXSMMASXSAMXSAMXMAMAXASXXMMMMMMMXMMSSM\nSAMAMMSMSMXAMMXMAMMSASASASAMMAMMMMMXMSAMXMXMAAMASMMXSMAXAXMMMMSMMMXSMSSSSSMAAAMMSAMMAMASXSMSAMXSASAXMAMAMAMMSAMXSASASXSMSMSXSXAMAAAAXSASAAXX\nSMSMXXA" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       # puzzle_input

     

       27
       27
       +
       search_box =

     

       28
       28
       +
         puzzle_input

     

       29
       29
       +
         |> String.split("\n", trim: true)

     

       30
       30
       +
         |> Enum.map(&String.to_charlist/1)

     

       31
       31
       +
       ```

     

       32
       32
       +
       

     

       33
       33
       +
       <!-- livebook:{"output":true} -->

     

       34
       34
       +
       

     

       35
       35
       +
       ```

     

       36
       36
       +
       [~c"MASAMXMSSXXMAMXXMXMASXMASXMMSMSMMMAXMASASMMSSMSXAXMASMMSMMMSSMSASMSSSSMSMSMXXMXMAXAMXMSMSSXSAMXMSSXSXSXMASXMSASXMMXSXMSSSSSXSAMMAMXSXXMAAXSA",

     

       37
       37
       +
        ~c"MASMMXMASAXASMSMMMSAMXSMSAMXAAAAAXAMXASXAMAAAAMMSMMMMMASXAAAAMMAMAMMASAAAAXMXMSSSSSSMMSAMAXAXXSMAMSAMXASAXXASAMXASAMAXXMASAAAMAMAXXMASXSXSXS",

     

       38
       38
       +
        ~c"MMXAXMMMSXMAMAAXAAXAAAXXSMMSMSMSMXAXMXSMMMMSSMXAMXAAXMAMMMMSSMMAMAMMAMMMMMXSAAXAAMMAXXSAMXMSMAXMAMSMSSXMASMMMSXSXMAXMMSMMMMMMSASMSXMAMAXXSAM",

     

       39
       39
       +
        ~c"SXSAMASASMSXMSMSMSSMMMMMMXAMXMMXMASMMMMAXXAAAMMMSSSSSMASXXAAXASMSXXMXSXSXSASMSMMSMSAMMMAMXAAMASXMMSXMXMMMXASAXMSAASAMXSAAMXSXMASAXMMXSMSMMAM",

     

       40
       40
       +
        ~c"AAAXXXMASASXMXMAXXMMASAASMXSASASXAAAAMSSMMMSXMAAMMMMMXAXMMMMSAMXAMASAMXSAMASXXAXAAMAMXSAMXSXSMMASAMSMASAAMSMMSSXMAXASASMMSAMASAMAMSMAAXMASXM",

     

       41
       41
       +
        ~c"MSMMXXMMMAMAMMMMMMXSAXXAMMMMXSAXMMXXAMXAAMMXMASXMAAASMMXAAMXAXAMMMAMAMAMAMXMASXMMXMAAXMAXMAMXMSAMASXMAXMSXMAMXXXMASAMAMAXMMMAAXXAAAMXSXMMMAS",

     

       42
       42
       +
        ~c"MXAXAMXXMMMMSAMAASMMMSMMASASAMAMAXMSXMSMMXAMXAXMMSSXSASXSSSMAMSMXMXSAMSSSMAMXMXAMAXXMMSAXAXMMXMASMMMMSSMMASAMMAMSMMAMAXSMXXMSSSSSSMXAXMSSMMM",

     

       43
       43
       +
        ~c"ASXMMXSAMXAASXXMXSAAAXASAMMMASMSSSMAAMMXMMSSMASAMAMMMAMMAXMAXMASXMAXMSAAASASAMXSSMXSAAXSSMXAAXXAXMAMXMAMSMMAXMAAAAMXMAMXASXAMAMXMXMMAXAAXAXS",

     

       44
       44
       +
        ~c"MAASMAMMSSMMSMSSXSMMXSMMASMSXMAAASMMMMAAMAMAMXAXAASMSSMMMMXSMSXSMXSXMXMXMSXMASAMAAAMMMMMMXXXSXMASMXMXMMMSXMSAMASMSMAXMASAAMXMMSSMASXXMXMAXMA",

     

       45
       45
       +
        ~c"SAMXMXSAXAMASMXAASXSMMAXXMASAMMMMMMXXXSXMASAMXMASXSAAMXXXMMXMXAXMAMAMXXAAMAXAMASMMMSMMXSMMMXMAAMXXAXSXSASASXSMAMAAXMMSMMXMAXSAAAMXSASMSSXSAS",

     

       46
       46
       +
        ~c"MMXSSXMXSAMASXXMXMAXAXXMSMMMXSAMXXMSXMMASXSXSXXAXMMMMMXMAXAMXMMMMASAMXSMSSSMSMMMMMAXXMAXAAAAXXSXXSASXAMAXXMAXMAMSMMSASXMAXMXMMSXSAMXMAAXASAM",

     

       47
       47
       +
        ~c"ASAMXAMXSXMAMMMXAMSSSMSAXXXMSXASASXXAASAMXMAMAMSXXAXASASASXXSAAAMASAMAXXAAAMXASXSMXXAMASMMSMSAMAMXXXMMMSMXMMMXMXAAAMXSASXSSSXAAAMMAMMMMMAMAM",

     

       48
       48
       +
        ~c"MMMSSXMXMAMXMSMXMSAAAAMMMXMSMSMMAAMSSMXAMMMAMXMXXSXSMSAMXSMAMSXSXAXAMSMMMSMMSAMAXAMXXAXXXAAAMXXMMSMMMSAMXXSASASXSMMXMSAMAAAAMMSXMAAMAMAMXMAM",

     

       49
       49
       +
        ~c"XXAXMASMSAMAAAAASMMMMXMASMMAAAXMAMAAMMMSAMSAMSAXMAAMMMAMXMMMMAXXAMXSMMSMAXXXXAMSMMSASMMMMSMXMSMMAAAAAMMMXMMAMASAMAAAXMSMMMMMXXMASXSSSSXSASAS",

     

       50
       50
       +
        ~c"SASAMXMAMMSASMSMXASMMASXSASMSSXSAMMXAAAASASAMXMXAXMSASASMXAAMMSMMSAMXAAMASMMSMMXAXMXXAAXXAAASAAMSSSMSXMXSAMAMAMASMSMSAMXMMASMMXMMAAAAXASMSSM",

     

       51
       51
       +
        ~c"XAMASXSXSASAXMXMSXMASAXASMSAAXXMAMSSSMSAXMMMSAMXMSASASAMAMMMSAAMAMASMSXSAXAMAMXMXMASXSMMSXSXMAXMAAXAMASXMAMXSXMXMXAXMAMAMAAAXMSXMMMMMMXMXXXM",

     

       52
       52
       +
        ~c"MMMASMAAMMMAMASASAMXMASMMAMMMMMXMMXAMAMXMAAXMAXXXMAMXMMMSSMAMMXMXSXMAXMMMSSSXSMSAMXSAXMASMMMASXMXSXXXAMAXAMMSASMSSSMSASASMXSAMAMXXAASXMMSASX",

     

       53
       53
       +
        ~c"AXMAXXMXMXSAMMMAMAMXMXAMXSMSXASASMMAMXMSSXMSXSAMXMXMMXSXAAXMASXMXAMSXSAAXXAXXXAAXAAMMMXXMAMMAMAAAMMSMSSMMSSMSAMAAAAASASASAMXXAXMMSAXSAAXMASX",

     

       54
       54
       +
        ~c"SXMASXXXMAXASMMMMMSXMMASXAAXSXSXSASMMASMSAXMAXAMXXMAMASMSSMMAXAAASASASMMAAMMXMSMSMXSAMXMXSXMASMMMSAXMMAXSMAMMXMMMSMMMAMAMXMAMXMAMAMMSXMXMXMX",

     

       55
       55
       +
        ~c"MAMMAMXAMXSSMMXAAXAMASAMXMMASXSXSAMMSMSAXMASASAMMMAAMAXAMXXMMSMMAASMAMMXMMXSAAAAXMASASMMAMXXMAAAXMXSSMXMAXAMXAMSMMMSMSMSMAMMSAXMASAAXMMASAAX",

     

       56
       56
       +
        ~c"SAXSAXSXSXMMASMSSMXMMMASXXAAMMMAMAMAAMMMMAMMMMAMAASXMSSSXMAXMAXAXMXMSMAXXAASMMMSMXMSAMXMASMSSSSMMSAXMASAMSMSXMMAAAAAXAAXSAMMMMXXXMMXSMSASMSM",

     

       57
       57
       +
        ~c"MAMAXMMMXAASAMAMMMMMSSMSXSMXSAMSMMMSXSASAAXAAMAMSMMAMAAMAMXMSASXSXXXXAMXMMXSMSMXMAMMAMXSASAAXAAAXMAMSAMAXAMSASMSSMSSSMMMSMSAAXSSSXSMXAMXSXMX",

     

       58
       58
       +
        ~c"MSMSMMXSMSMMAXMASAMSAMXMASAAMXSAAXAMXSMSSSSSXSAXXXXAMMSMXXSXMASAXXMASAMXMSXXAAAASAXMAMMMMMMMMSAMMAMXMMXSMXMSAMAAAAXXMAXMXMSMMSAMAAMXSAMXXASM",

     

       59
       59
       +
        ~c"AMAMAXAMXXXSXMXAXMXMASAMXMMMSMSXSMMSAMXXAXAAXAXMASMSMSMXXXAMMMMMMSMXSMMSAMXMSMSMSMSSMMMASXSSMMXSMAXMASAMXXXMMMMMMXMMSMMSAMXASMAMMSMMAAXXMASM",

     

       60
       60
       +
        ~c"XMAMMMXSAMASMAMXSXXSAMAMSMMAAASMXXMAAASMXMMMMMXXXAAAMAMMMXMAAMAMAMXASAAAAMAAAAAMXMMASXSXMAMAAMAMXSXSAMXMAMXSXAMSMSAMAXAXAMAMMSSMXMXAXXMSAMXM",

     

       61
       61
       +
        ~c"SMXSAAAMAMAMMSMAXAMMXSAMAAXSMXXASXSMSMAMXAAXMXMMMMSMMAMSAAXSXSAMAMXXSMMSASXSMSMSAMSAMMSAMXMSAMXSAXMMXMAXAMAAMAMAAAXSASMSSMXSAAXMASASAMXSAASM",

     

       62
       62
       +
        ~c"AAAAMMSSXMASAAMSXSAMXSXSXSMXMASASAMXMAASASXMXAAXAXAASAXASXMMASXSASMMMXAXXMAAMXXXMMMXMAMAMXMXAMXSAXAXSXMXAMMXSAMMSMMMMSMAMXMMMSSMXAAXAAAMXMXM",

     

       63
       63
       +
        ~c"MMMSAAXMMMSMMSSMAMMMMMMMMXAXSXSAMXMAXXXSXAAMSSSXMXSXMXSMMSAMAMAMXSAAAMXMAMMMMMSMSXSMMMXMMAXSAMAMASMXMASXSMMASXSAMXSAMXMAMAXASXXMMMMMMMXMMSSM",

     

       64
       64
       +
        ~c"SAMAMMSMSMXAMMXMAMMSASASASAMMAMMMMMXMSAMXMXMAAMASMMXSMAXAXMMMMSMMMXSMSSSSSMAAAMMSAMMAMASXSMSAMXSASAXMAMAMAMMSAMXSASASXSMSMSXSXAMAAAAXSASAAXX",

     

       65
       65
       +
        ~c"SMSMXXAAAAMMMMASASASASXMASAMXMAXAXSXMAAXMSXMAMXAMAMAMXSMMSXSXAAMXSMXXAAMAAMSMMSAMXMMASMSAMXSAMXMASXMMMSASAMAMXMAMASAMMSMAAXMMMSSSSSSSMAMMMMX",

     

       66
       66
       +
        ~c"XAAXASMSMSMAAXXXAXMMMMAMAMAMXXSSMXXMAMXMAMASXSMMMAMAMMXXAAAXMSXSAMAAMMSMSSMMMAMXSAMSASAMXMASXMAMMMMAXMAXXMSAMXMAMXMAMAMMMXMSXAAMAAAXAMXMSASA",

     

       67
       67
       +
        ~c"MXMXAMXAXMMSXSMMSMSSSSMMSSXMXXXAMXXSSSSMXSAMAMAAXSMMMAAMSMXXMAMMASASMAXMAAAAMMSASAXMSMXMXMASMXXXAAXMAMMAXMSXSASXSXSAMSSMSMASMMMSAMMMSXMXXASA",

     

       68
       68
       +
        ~c"SASXSSSXMSXMAAAAXAAAXMASXMAAXXMSAMMAAAXAAMASAMMMAMASMSXAXXAXMSSSXMAXMXSMSSMMSMAXMMMXAMXXMXAXMASMSMXSAASMXAXXSAMSAASXMAAAXMAXXAASMAMAXAXXMMMM",

     

       69
       69
       +
        ~c"SASAXAMXASAXSSSMMMMMMXMSASXMXMAXAXMMMMMMMMXAXXAMXXAMAMXSAMAMSAAXMMMMSXSAAXMASMMMMMXMMAMMAMSSMAXAAAASAMAAMSMXMSMMMMMMASMMXMMSMXMSSSMASMMAAAAA",

     

       70
       70
       +
        ~c"MSMXMAMSSMMMXAAAXXMASMXSAMSAMXSMSMMASAAXMXAAMMXXSMSSXMXXASAMXMSMSAMXMAMMMMMMMMAAAAAAXMMAXXMMMMMSMMMSAXMMMMAXAXXAAAXXAXAMXAAAXMMMMMMAMMSXSMSS",

     

       71
       71
       +
        ~c"SAMXSMMXXAAAMMMSAMXSMAAMAMMMXMXXAAMASXSXMSXSXSXASAMXAMXSXMAMMXMASASXMMMSXXSMMSSSSSSSSMSSSMXSAXXMAXAXXMXSAXMMMXSSSXMMSXMMSMSSSXSAAAMMXMXMMMXM",

     

       72
       72
       +
        ~c"XAMMASMSSMMSMAAXXAXMXMMSMMASASXASXMASAMXXSAMAAMMMAMSAMAXMASXMAMMMAMXAMSMSXAAMXAAAAMAAAAAAAAMXXMXMMSSMSASMMXAXAXMAXSAMAMXSAMAAMASXMXMAMMSAXAM",

     

       73
       73
       +
        ~c"SSMMSAMXAASMXMMSMMMSAMXXXSASASAXAAMAMAMMMMAMMXSASAMMAMXXXAXAMMSMSSSMSMSAXSSMMMMMMXMMMMMSMMMXMMAASAMAAMASAASXMMXMXXMAMXMMSAMMMMXASXSSXSASASMS",

     

       74
       74
       +
        ~c"XAXSMMSSSMMXAMAAAAXMMSSMAXXMXMXSSXMXMAMAAMXMXASASASMSMXSAMXMMSAMMAAAXAMXMMMSMXSAMXSAAXXAMXSAASMMSAMMMMMMMMAAMAMSASMSMASASAMSMXSAMXAAAAXMAMAA",

     

       75
       75
       +
        ~c"MXMXAAXMMMMSSMSSSSSMASAMSSMXXSAXAMMSSXSSSMSMMXMAMAMMXSAMXSAMXSASMSMMMSMMXMXAMXSAMXSSMMAMXAMMMMSASXMASMXSSMSSMASMASAXSMMASXMXMMAASMMMMMMMAMAM",

     

       76
       76
       +
        ~c"MXXMMMSMXSAAAAAXAXAMMXAMAAAAMXXSAAAAXXMAMAXXMXMMMSMMXMXSASASASAMXXXAAXAMASAXMASXMMMMSMAXMMSXXAMMMMSAXSAMXAMXMMSMMMMXAXMAMXMASASMMAXSXSAMAXAX",

     

       77
       77
       +
        ~c"MSMXAXXAAMMSMMMMSMSMMSMMXSMSXSMSXMMSMSMAMSMSMXMXMMAAMMXMASMMASAMXXSMXSXMAXAASASASXAAXXXMASAMMSMXMXMXSMXMMAMMMMXXXXXSMMMMSSXXAMMASMXAAMAMSMMS",

     

       78
       78
       +
        ~c"AAASXMMMMSMAXXXAAMAAXSXSMXAMAAASAXMAXAAXMXAMXAXAMMXMAXAMMMMMAXAXMMXMXSAMASXXMASAMSMMAXMAMXASAMMSMAXMMMSASAMAAAAMXMXAXXXSAMMMMASAMXSMSMSMMAMX",

     

       79
       79
       +
        ~c"SAXMSAAAAAMMMSMSSSMSMMAMAMAMXMSSMMMXASAMXMAMSMSXSSMSXMAXAAXMSSMMXMMSASMMMXXAMAMAMXMAXMASMSAMASASXSXSAAMXSAMSAMXAAAMMSMXMASAXSMMAMXAAMAXAMAMX",

     

       80
       80
       +
        ~c"AMMASXMMSSSMASAMAAXXAMAMMSMMXXXXAAMXMMXXXMMMMAAAXMAXMASMSXSXAAXMAXSMAXXAXMSMMMSXMSMXMAXAMMMMAMXMAMAMMMSASMMXAXMSMSAMAMMSAMMXSAMAMXMSMMMSSSMM",

     

       81
       81
       +
        ~c"SSMAMAMAMAAMAMAMXMMSAMXMXAAMAMMSSMSMXSXXMAXAMMMSMMSMXXMAXMSMSSMSXXAMSMSMSAMASAMXAAMSSSMSMAXAAXAMSMSMSXMASASMSMMAAXAMAMAMAMXMSAMXMMAMXXAAAAXX",

     

       82
       82
       +
        ~c"MAMXSXMAMSMMXSXMASAMSMASMSSSMXAAXSAMAXMSSXSAMAAAAMMMSAMXMAXAXAMAXMXMXAMASXSAMASXMXSAAXAXSASMMSXSXAMAMXMXMXMAMMSASXSMSASMSMSXSMMAMMSMMMSSSMAA",

     

       83
       83
       +
        ~c"SMMXMASAXMXMASASMSXSASMSAAAAMMMMSMMMMSMMAXAMSSSSXMAASXXMMAASMMMAXSAMMXMAMMMMSAMXMMMMSMMMMMSAASMMMSMAMSASMAMSMASAMAMAMAMAXXAAMXMSMMXAXMAAAXXM",

     

       84
       84
       +
        ~c"XAMXXXASAMAMXSAMASMAMMXMXMMMMASXMMXSAAAMMAMMAXMMMSMAXMAXASMXAMMAXSASMSMASXSASAMMAAXAMMXAXASMMMAAAXXAMXAXMAMAMXMSMXMXMAMSMMMSMMMXAASAMAMSMMMM",

     

       85
       85
       +
        ~c"SSMMSMAXXSXSAMAMAMAAXMAMXSMMSASMSMAMSSSMXMXMMSXAAXXAASMMMMASMMMXMSAMAAMXSXSAMAMXAMSASASASAMSXSSMSSSMMMAMSSSXSAAXMMMMSXMASXAXXXASMMMAAMXXXAAM",

     

       86
       86
       +
        ...]

     

       87
       87
       +
       ```

     

       88
       88
       +
       

     

       89
       89
       +
       ## Part 1

     

       90
       90
       +
       

     

       91
       91
       +
       ```elixir

     

       92
       92
       +
       defmodule CeresSearch do

     

       93
       93
       +
         def rows(rows), do: rows |> Enum.map(&count(&1, 0)) |> Enum.sum()

     

       94
       94
       +
       

     

       95
       95
       +
         def count([], acc), do: acc

     

       96
       96
       +
         def count(~c"XMAS" ++ rest, acc), do: count([?S | rest], acc + 1)

     

       97
       97
       +
         def count(~c"SAMX" ++ rest, acc), do: count([?X | rest], acc + 1)

     

       98
       98
       +
         def count([_ | rest], acc), do: count(rest, acc)

     

       99
       99
       +
       

     

       100
       100
       +
         def cols(rows) do

     

       101
       101
       +
           rows

     

       102
       102
       +
           |> Enum.zip()

     

       103
       103
       +
           |> Enum.map(&Tuple.to_list/1)

     

       104
       104
       +
           |> rows()

     

       105
       105
       +
           |> dbg()

     

       106
       106
       +
         end

     

       107
       107
       +
       

     

       108
       108
       +
         def diagonals(rows) do

     

       109
       109
       +
           map =

     

       110
       110
       +
             for {row, x} <- Enum.with_index(rows),

     

       111
       111
       +
                 {val, y} <- Enum.with_index(row),

     

       112
       112
       +
                 into: %{},

     

       113
       113
       +
                 do: {{y, x}, val}

     

       114
       114
       +
       

     

       115
       115
       +
           {w, h} = Enum.max(Map.keys(map))

     

       116
       116
       +
       

     

       117
       117
       +
           0..max(w, h)

     

       118
       118
       +
           |> gen_diagonals()

     

       119
       119
       +
           |> then(fn diags ->

     

       120
       120
       +
             Enum.map(diags, &extract(map, &1))

     

       121
       121
       +
           end)

     

       122
       122
       +
           |> rows()

     

       123
       123
       +
         end

     

       124
       124
       +
       

     

       125
       125
       +
         def gen_diagonals(_..max//_ = range) do

     

       126
       126
       +
           d1 =

     

       127
       127
       +
             for n <- range do

     

       128
       128
       +
               for(

     

       129
       129
       +
                 y <- 0..n,

     

       130
       130
       +
                 x = n - y,

     

       131
       131
       +
                 do: {y, x}

     

       132
       132
       +
               )

     

       133
       133
       +
             end

     

       134
       134
       +
       

     

       135
       135
       +
           d2 =

     

       136
       136
       +
             for n <- range do

     

       137
       137
       +
               for(

     

       138
       138
       +
                 y <- 0..n,

     

       139
       139
       +
                 x = max - n + y,

     

       140
       140
       +
                 do: {y, x}

     

       141
       141
       +
               )

     

       142
       142
       +
             end

     

       143
       143
       +
       

     

       144
       144
       +
           diag1 = d1 ++ d2

     

       145
       145
       +
       

     

       146
       146
       +
           diag2 =

     

       147
       147
       +
             Enum.map(diag1, fn d ->

     

       148
       148
       +
               Enum.map(d, fn {y, x} -> {max - y, x} end)

     

       149
       149
       +
             end)

     

       150
       150
       +
       

     

       151
       151
       +
           Enum.uniq_by(diag1 ++ diag2, &Enum.sort/1)

     

       152
       152
       +
         end

     

       153
       153
       +
       

     

       154
       154
       +
         def extract(map, keys) do

     

       155
       155
       +
           for key <- keys, val = map[key], do: val

     

       156
       156
       +
         end

     

       157
       157
       +
       

     

       158
       158
       +
         def search_all(box) do

     

       159
       159
       +
           cols(box) + rows(box) + diagonals(box)

     

       160
       160
       +
         end

     

       161
       161
       +
       end

     

       162
       162
       +
       ```

     

       163
       163
       +
       

     

       164
       164
       +
       <!-- livebook:{"output":true} -->

     

       165
       165
       +
       

     

       166
       166
       +
       ```

     

       167
       167
       +
       {:module, CeresSearch, <<70, 79, 82, 49, 0, 0, 31, ...>>, {:search_all, 1}}

     

       168
       168
       +
       ```

     

       169
       169
       +
       

     

       170
       170
       +
       ```elixir

     

       171
       171
       +
       CeresSearch.search_all(search_box)

     

       172
       172
       +
       ```

     

       173
       173
       +
       

     

       174
       174
       +
       <!-- livebook:{"output":true} -->

     

       175
       175
       +
       

     

       176
       176
       +
       ```

     

       177
       177
       +
       2401

     

       178
       178
       +
       ```

     

       179
       179
       +
       

     

       180
       180
       +
       ## Part 2

     

       181
       181
       +
       

     

       182
       182
       +
       ```elixir

     

       183
       183
       +
       map =

     

       184
       184
       +
         for {row, x} <- Enum.with_index(search_box),

     

       185
       185
       +
             {val, y} <- Enum.with_index(row),

     

       186
       186
       +
             into: %{},

     

       187
       187
       +
             do: {{y, x}, val}

     

       188
       188
       +
       

     

       189
       189
       +
       Enum.count(map, fn

     

       190
       190
       +
         {{y, x}, ?A} ->

     

       191
       191
       +
           [map[{y + 1, x + 1}], map[{y - 1, x - 1}]] in [~c"MS", ~c"SM"] and 

     

       192
       192
       +
             [map[{y - 1, x + 1}], map[{y + 1, x - 1}]] in [~c"MS", ~c"SM"]

     

       193
       193
       +
         _ ->

     

       194
       194
       +
           false

     

       195
       195
       +
       end)

     

       196
       196
       +
       ```

     

       197
       197
       +
       

     

       198
       198
       +
       <!-- livebook:{"output":true} -->

     

       199
       199
       +
       

     

       200
       200
       +
       ```

     

       201
       201
       +
       1822

     

       202
       202
       +
       ```

     

       203
       203
       +
       

     

       204
       204
       +
       <!-- livebook:{"offset":14266,"stamp":{"token":"XCP.T-RaxkkrFX_OdT79HvWI46TqX7It60uksnJ1LTiQVcPcCTg_ZZN1SjjXIgHd4F397ANKRpGPP5xOXl4FWp7rCtZ86gir5tQaVrJ8BqeDCy_3leOOuggQbLw1uB3x5qEdZBg","version":2}} -->

+373

2024/day05.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 05

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI1Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "5", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "75|21\n28|29\n28|73\n95|48\n95|19\n95|16\n81|51\n81|95\n81|16\n81|56\n48|59\n48|83\n48|64\n48|57\n48|86\n15|43\n15|82\n15|49\n15|31\n15|35\n15|48\n83|68\n83|26\n83|56\n83|63\n83|64\n83|69\n83|84\n47|83\n47|29\n47|23\n47|18\n47|87\n47|53\n47|79\n47|59\n35|43\n35|34\n35|85\n35|28\n35|64\n35|94\n35|48\n35|79\n35|78\n34|65\n34|88\n34|87\n34|82\n34|45\n34|76\n34|47\n34|39\n34|49\n34|85\n92|15\n92|35\n92|59\n92|69\n92|34\n92|67\n92|26\n92|18\n92|73\n92|84\n92|19\n94|47\n94|83\n94|82\n94|85\n94|57\n94|48\n94|64\n94|28\n94|43\n94|76\n94|49\n94|88\n29|59\n29|51\n29|15\n29|73\n29|89\n29|66\n29|76\n29|75\n29|63\n29|53\n29|18\n29|62\n29|95\n69|94\n69|56\n69|66\n69|43\n69|85\n69|63\n69|82\n69|57\n69|78\n69|15\n69|34\n69|31\n69|35\n69|16\n63|78\n63|65\n63|43\n63|27\n63|66\n63|23\n63|62\n63|35\n63|34\n63|48\n63|56\n63|19\n63|94\n63|85\n63|57\n31|92\n31|28\n31|53\n31|49\n31|64\n31|59\n31|26\n31|47\n31|23\n31|76\n31|89\n31|79\n31|81\n31|83\n31|86\n31|45\n56|86\n56|43\n56|65\n56|57\n56|82\n56|47\n56|85\n56|48\n56|62\n56|31\n56|78\n56|35\n56|16\n56|87\n56|23\n56|95\n56|34\n23|76\n23|29\n23|39\n23|53\n23|45\n23|26\n23|27\n23|28\n23|79\n23|21\n23|84\n23|83\n23|73\n23|86\n23|81\n23|59\n23|68\n23|89\n65|53\n65|48\n65|87\n65|88\n65|27\n65|28\n65|49\n65|45\n65|82\n65|43\n65|29\n65|39\n65|76\n65|85\n65|64\n65|23\n65|31\n65|79\n65|92\n45|68\n45|59\n45|69\n45|73\n45|53\n45|21\n45|81\n45|62\n45|56\n45|15\n45|95\n45|35\n45|63\n45|51\n45|26\n45|19\n45|92\n45|66\n45|89\n45|78\n76|73\n76|51\n76|18\n76|75\n76|95\n76|66\n76|56\n76|69\n76|81\n76|21\n76|67\n76|26\n76|53\n76|92\n76|89\n76|35\n76|63\n76|19\n76|62\n76|59\n76|45\n53|92\n53|21\n53|18\n53|94\n53|67\n53|68\n53|69\n53|63\n53|66\n53|84\n53|34\n53|59\n53|89\n53|73\n53|78\n53|81\n53|19\n53|35\n53|26\n53|56\n53|15\n53|51\n51|47\n51|15\n51|69\n51|65\n51|94\n51|66\n51|31\n51|95\n51|43\n51|35\n51|78\n51|82\n51|85\n51|48\n51|23\n51|63\n51|34\n51|16\n51|88\n51|67\n51|62\n51|19\n51|56\n79|84\n79|28\n79|69\n79|45\n79|92\n79|83\n79|29\n79|53\n79|64\n79|76\n79|89\n79|51\n79|68\n79|39\n79|26\n79|81\n79|21\n79|63\n79|62\n79|59\n79|75\n79|56\n79|73\n79|18\n19|35\n19|48\n19|82\n19|94\n19|57\n19|78\n19|43\n19|79\n19|83\n19|31\n19|64\n19|23\n19|47\n19|67\n19|28\n19|85\n19|27\n19|86\n19|34\n19|65\n19|87\n19|88\n19|16\n19|49\n82|27\n82|68\n82|83\n82|39\n82|28\n82|73\n82|92\n82|49\n82|75\n82|89\n82|31\n82|45\n82|47\n82|18\n82|87\n82|53\n82|79\n82|23\n82|86\n82|81\n82|29\n82|59\n82|64\n82|76\n21|34\n21|19\n21|78\n21|57\n21|82\n21|51\n21|66\n21|35\n21|95\n21|62\n21|48\n21|84\n21|65\n21|69\n21|31\n21|56\n21|15\n21|67\n21|85\n21|16\n21|88\n21|94\n21|63\n21|43\n88|27\n88|29\n88|64\n88|75\n88|31\n88|59\n88|76\n88|39\n88|47\n88|28\n88|87\n88|23\n88|83\n88|81\n88|53\n88|86\n88|45\n88|18\n88|92\n88|79\n88|49\n88|57\n88|82\n88|89\n86|18\n86|28\n86|73\n86|75\n86|59\n86|26\n86|21\n86|69\n86|76\n86|79\n86|51\n86|92\n86|45\n86|83\n86|64\n86|49\n86|81\n86|68\n86|39\n86|53\n86|29\n86|84\n86|63\n86|89\n43|59\n43|64\n43|87\n43|47\n43|49\n43|57\n43|31\n43|86\n43|39\n43|27\n43|53\n43|88\n43|83\n43|89\n43|81\n43|79\n43|75\n43|82\n43|23\n43|76\n43|29\n43|28\n43|92\n43|45\n26|15\n26|82\n26|78\n26|67\n26|57\n26|88\n26|35\n26|43\n26|85\n26|21\n26|48\n26|84\n26|69\n26|62\n26|34\n26|19\n26|66\n26|65\n26|51\n26|16\n26|95\n26|94\n26|63\n26|56\n68|85\n68|65\n68|95\n68|35\n68|78\n68|67\n68|57\n68|51\n68|62\n68|56\n68|34\n68|21\n68|63\n68|88\n68|15\n68|48\n68|43\n68|26\n68|66\n68|84\n68|94\n68|19\n68|69\n68|16\n85|64\n85|27\n85|82\n85|43\n85|53\n85|48\n85|57\n85|86\n85|88\n85|29\n85|47\n85|87\n85|83\n85|75\n85|76\n85|28\n85|81\n85|49\n85|45\n85|39\n85|92\n85|31\n85|23\n85|79\n39|84\n39|76\n39|59\n39|67\n39|62\n39|92\n39|81\n39|69\n39|66\n39|26\n39|15\n39|75\n39|95\n39|63\n39|21\n39|73\n39|45\n39|51\n39|89\n39|53\n39|56\n39|68\n39|19\n39|18\n78|48\n78|87\n78|34\n78|29\n78|28\n78|79\n78|76\n78|43\n78|39\n78|85\n78|88\n78|49\n78|27\n78|86\n78|94\n78|64\n78|31\n78|83\n78|82\n78|16\n78|23\n78|47\n78|65\n78|57\n87|83\n87|26\n87|51\n87|29\n87|79\n87|45\n87|68\n87|75\n87|73\n87|21\n87|53\n87|81\n87|84\n87|39\n87|89\n87|92\n87|76\n87|59\n87|18\n87|86\n87|69\n87|49\n87|64\n87|28\n18|69\n18|95\n18|73\n18|16\n18|48\n18|21\n18|68\n18|85\n18|62\n18|34\n18|19\n18|65\n18|15\n18|94\n18|63\n18|51\n18|66\n18|84\n18|67\n18|43\n18|35\n18|26\n18|56\n18|78\n84|95\n84|62\n84|48\n84|35\n84|57\n84|31\n84|16\n84|78\n84|65\n84|88\n84|67\n84|34\n84|19\n84|43\n84|69\n84|15\n84|94\n84|63\n84|51\n84|66\n84|47\n84|56\n84|85\n84|82\n59|34\n59|69\n59|89\n59|19\n59|62\n59|84\n59|68\n59|73\n59|26\n59|66\n59|94\n59|67\n59|21\n59|85\n59|18\n59|95\n59|16\n59|15\n59|63\n59|56\n59|35\n59|51\n59|78\n59|65\n67|88\n67|27\n67|16\n67|28\n67|79\n67|64\n67|65\n67|29\n67|47\n67|83\n67|34\n67|48\n67|49\n67|43\n67|94\n67|23\n67|85\n67|35\n67|31\n67|82\n67|57\n67|87\n67|8" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       [orderings, jobs] = String.split(puzzle_input, "\n\n", parts: 2)

     

       27
       27
       +
       ```

     

       28
       28
       +
       

     

       29
       29
       +
       <!-- livebook:{"output":true} -->

     

       30
       30
       +
       

     

       31
       31
       +
       ```

     

       32
       32
       +
       ["75|21\n28|29\n28|73\n95|48\n95|19\n95|16\n81|51\n81|95\n81|16\n81|56\n48|59\n48|83\n48|64\n48|57\n48|86\n15|43\n15|82\n15|49\n15|31\n15|35\n15|48\n83|68\n83|26\n83|56\n83|63\n83|64\n83|69\n83|84\n47|83\n47|29\n47|23\n47|18\n47|87\n47|53\n47|79\n47|59\n35|43\n35|34\n35|85\n35|28\n35|64\n35|94\n35|48\n35|79\n35|78\n34|65\n34|88\n34|87\n34|82\n34|45\n34|76\n34|47\n34|39\n34|49\n34|85\n92|15\n92|35\n92|59\n92|69\n92|34\n92|67\n92|26\n92|18\n92|73\n92|84\n92|19\n94|47\n94|83\n94|82\n94|85\n94|57\n94|48\n94|64\n94|28\n94|43\n94|76\n94|49\n94|88\n29|59\n29|51\n29|15\n29|73\n29|89\n29|66\n29|76\n29|75\n29|63\n29|53\n29|18\n29|62\n29|95\n69|94\n69|56\n69|66\n69|43\n69|85\n69|63\n69|82\n69|57\n69|78\n69|15\n69|34\n69|31\n69|35\n69|16\n63|78\n63|65\n63|43\n63|27\n63|66\n63|23\n63|62\n63|35\n63|34\n63|48\n63|56\n63|19\n63|94\n63|85\n63|57\n31|92\n31|28\n31|53\n31|49\n31|64\n31|59\n31|26\n31|47\n31|23\n31|76\n31|89\n31|79\n31|81\n31|83\n31|86\n31|45\n56|86\n56|43\n56|65\n56|57\n56|82\n56|47\n56|85\n56|48\n56|62\n56|31\n56|78\n56|35\n56|16\n56|87\n56|23\n56|95\n56|34\n23|76\n23|29\n23|39\n23|53\n23|45\n23|26\n23|27\n23|28\n23|79\n23|21\n23|84\n23|83\n23|73\n23|86\n23|81\n23|59\n23|68\n23|89\n65|53\n65|48\n65|87\n65|88\n65|27\n65|28\n65|49\n65|45\n65|82\n65|43\n65|29\n65|39\n65|76\n65|85\n65|64\n65|23\n65|31\n65|79\n65|92\n45|68\n45|59\n45|69\n45|73\n45|53\n45|21\n45|81\n45|62\n45|56\n45|15\n45|95\n45|35\n45|63\n45|51\n45|26\n45|19\n45|92\n45|66\n45|89\n45|78\n76|73\n76|51\n76|18\n76|75\n76|95\n76|66\n76|56\n76|69\n76|81\n76|21\n76|67\n76|26\n76|53\n76|92\n76|89\n76|35\n76|63\n76|19\n76|62\n76|59\n76|45\n53|92\n53|21\n53|18\n53|94\n53|67\n53|68\n53|69\n53|63\n53|66\n53|84\n53|34\n53|59\n53|89\n53|73\n53|78\n53|81\n53|19\n53|35\n53|26\n53|56\n53|15\n53|51\n51|47\n51|15\n51|69\n51|65\n51|94\n51|66\n51|31\n51|95\n51|43\n51|35\n51|78\n51|82\n51|85\n51|48\n51|23\n51|63\n51|34\n51|16\n51|88\n51|67\n51|62\n51|19\n51|56\n79|84\n79|28\n79|69\n79|45\n79|92\n79|83\n79|29\n79|53\n79|64\n79|76\n79|89\n79|51\n79|68\n79|39\n79|26\n79|81\n79|21\n79|63\n79|62\n79|59\n79|75\n79|56\n79|73\n79|18\n19|35\n19|48\n19|82\n19|94\n19|57\n19|78\n19|43\n19|79\n19|83\n19|31\n19|64\n19|23\n19|47\n19|67\n19|28\n19|85\n19|27\n19|86\n19|34\n19|65\n19|87\n19|88\n19|16\n19|49\n82|27\n82|68\n82|83\n82|39\n82|28\n82|73\n82|92\n82|49\n82|75\n82|89\n82|31\n82|45\n82|47\n82|18\n82|87\n82|53\n82|79\n82|23\n82|86\n82|81\n82|29\n82|59\n82|64\n82|76\n21|34\n21|19\n21|78\n21|57\n21|82\n21|51\n21|66\n21|35\n21|95\n21|62\n21|48\n21|84\n21|65\n21|69\n21|31\n21|56\n21|15\n21|67\n21|85\n21|16\n21|88\n21|94\n21|63\n21|43\n88|27\n88|29\n88|64\n88|75\n88|31\n88|59\n88|76\n88|39\n88|47\n88|28\n88|87\n88|23\n88|83\n88|81\n88|53\n88|86\n88|45\n88|18\n88|92\n88|79\n88|49\n88|57\n88|82\n88|89\n86|18\n86|28\n86|73\n86|75\n86|59\n86|26\n86|21\n86|69\n86|76\n86|79\n86|51\n86|92\n86|45\n86|83\n86|64\n86|49\n86|81\n86|68\n86|39\n86|53\n86|29\n86|84\n86|63\n86|89\n43|59\n43|64\n43|87\n43|47\n43|49\n43|57\n43|31\n43|86\n43|39\n43|27\n43|53\n43|88\n43|83\n43|89\n43|81\n43|79\n43|75\n43|82\n43|23\n43|76\n43|29\n43|28\n43|92\n43|45\n26|15\n26|82\n26|78\n26|67\n26|57\n26|88\n26|35\n26|43\n26|85\n26|21\n26|48\n26|84\n26|69\n26|62\n26|34\n26|19\n26|66\n26|65\n26|51\n26|16\n26|95\n26|94\n26|63\n26|56\n68|85\n68|65\n68|95\n68|35\n68|78\n68|67\n68|57\n68|51\n68|62\n68|56\n68|34\n68|21\n68|63\n68|88\n68|15\n68|48\n68|43\n68|26\n68|66\n68|84\n68|94\n68|19\n68|69\n68|16\n85|64\n85|27\n85|82\n85|43\n85|53\n85|48\n85|57\n85|86\n85|88\n85|29\n85|47\n85|87\n85|83\n85|75\n85|76\n85|28\n85|81\n85|49\n85|45\n85|39\n85|92\n85|31\n85|23\n85|79\n39|84\n39|76\n39|59\n39|67\n39|62\n39|92\n39|81\n39|69\n39|66\n39|26\n39|15\n39|75\n39|95\n39|63\n39|21\n39|73\n39|45\n39|51\n39|89\n39|53\n39|56\n39|68\n39|19\n39|18\n78|48\n78|87\n78|34\n78|29\n78|28\n78|79\n78|76\n78|43\n78|39\n78|85\n78|88\n78|49\n78|27\n78|86\n78|94\n78|64\n78|31\n78|83\n78|82\n78|16\n78|23\n78|47\n78|65\n78|57\n87|83\n87|26\n87|51\n87|29\n87|79\n87|45\n87|68\n87|75\n87|73\n87|21\n87|53\n87|81\n87|84\n87|39\n87|89\n87|92\n87|76\n87|59\n87|18\n87|86\n87|69\n87|49\n87|64\n87|28\n18|69\n18|95\n18|73\n18|16\n18|48\n18|21\n18|68\n18|85\n18|62\n18|34\n18|19\n18|65\n18|15\n18|94\n18|63\n18|51\n18|66\n18|84\n18|67\n18|43\n18|35\n18|26\n18|56\n18|78\n84|95\n84|62\n84|48\n84|35\n84|57\n84|31\n84|16\n84|78\n84|65\n84|88\n84|67\n84|34\n84|19\n84|43\n84|69\n84|15\n84|94\n84|63\n84|51\n84|66\n84|47\n84|56\n84|85\n84|82\n59|34\n59|69\n59|89\n59|19\n59|62\n59|84\n59|68\n59|73\n59|26\n59|66\n59|94\n59|67\n59|21\n59|85\n59|18\n59|95\n59|16\n59|15\n59|63\n59|56\n59|35\n59|51\n59|78\n59|65\n67|88\n67|27\n67|16\n67|28\n67|79\n67|64\n67|65\n67|29\n67|47\n67|83\n67|34\n67|48\n67|49\n67|43\n67|94\n67|23\n67|85\n67|35\n67|31\n67|82\n67|57\n67|87\n67|8" <> ...,

     

       33
       33
       +
        "94,68,73,78,15,65,43,66,62\n34,65,85,48,82,47,23,87,49,79,83,28,29\n57,82,27,87,83,28,29,39,76,45,75,53,92,81,18\n29,86,68,39,81,45,75,76,31,53,64,23,92\n31,28,83,49,87,79,82,64,16,48,86\n45,89,73,53,59,68,28,83,86,79,69,76,39\n31,19,88,35,23,43,86,79,48,16,57,82,27,87,67,65,78,34,49,47,66\n31,47,23,27,87,49,79,83,28,64,29,76,45,75,53,81,59,89,18,73,68\n26,95,73,56,81,89,59,34,92,94,21\n16,63,34,19,66,65,47,56,31,82,51,85,57,67,88,62,48,78,95,35,15\n62,15,66,95,19,67,35,78,94,16,65,48,43,88,82,31,47,23,27,87,86\n62,15,66,95,67,35,34,16,65,43,88,82,31,47,86\n28,68,83,31,59,89,29,73,39,75,92,86,76,45,49,64,18,81,87,27,79,23,47\n81,78,26,16,59,62,51,19,21,56,68,94,18,73,69,35,89,84,66\n83,76,75,53,92,81,73,26,63,56,62\n53,27,29,79,28,88,85,31,47\n29,75,43,31,83,57,49,27,48,64,23,87,86,76,79,53,45\n63,27,43,95,78,56,34\n83,59,89,81,18,84,68,76,69,26,62,63,56,75,73,92,64,53,28,51,29\n75,53,92,18,73,68,26,51,69,63,15,19,67,35,78\n48,31,23,27,87,86,28,64,29,76,75\n16,51,62,43,15,68,78,65,88,19,34,85,26,48,95,94,67,56,84,69,66\n65,82,23,87,86,75,48,49,31,16,57,45,43,47,29\n29,76,45,75,81,18,73,21,56,62,95\n18,67,21,15,63,59,84,66,69,26,34,68,35,95,81,92,19\n49,79,39,76,53,92,59,89,18,68,51,69,63\n85,15,43,62,84,88,57,16,31,95,69\n21,51,43,16,94,78,19\n87,86,49,79,83,28,39,76,45,53,92,89,18,68,26,21,51\n51,69,62,35,88,15,16,21,48,57,26,78,65,43,34,95,19\n49,78,16,94,31,23,65\n87,83,29,45,59,73,51\n34,94,16,85,48,43,88,57,82,23,87,86,79,83,28,29,76\n84,51,69,63,56,62,15,66,95,19,67,35,78,34,94,85,43,88,57,82,31\n53,69,49,84,51,89,28,63,29\n83,21,64,68,75,59,87,45,76,23,29,73,18,27,28,81,26,53,86,89,39,92,79\n62,15,67,35,16,43,86\n88,31,23,83,39\n27,87,86,49,83,64,39,76,75,53,89,73,26,21,84\n53,81,21,51,63,15,95,35,34\n95,51,31,84,15,94,43\n92,76,59,63,73,64,84,81,28,75,15,29,68,62,69\n89,18,62,15,94,65,85\n92,68,63,95,67,78,94\n94,68,95,84,16,63,15,35,26,34,62,73,19,51,56,67,18,21,69,65,66,59,78\n35,34,16,65,48,27,86,83,29\n15,66,95,67,34,94,85,48,43,82,23\n69,63,56,66,95,19,67,35,78,34,94,16,65,85,48,43,23\n85,27,66,19,43,62,86\n65,85,48,43,82,31,47,49,79,28,39,76,45,75,53\n86,49,79,64,39,76,45,75,59,89,84,51,69\n92,81,59,89,18,73,26,21,84,51,69,63,56,62,15,66,95,19,67,35,78,34,94\n26,84,69,63,56,62,66,19,67,78,34,94,16,85,43,88,57\n21,89,19,84,94,35,68,65,18,51,16,63,59,67,34,56,73,78,15,69,95,66,26\n83,23,39,27,76,47,49,29,48,86,82,53,88,64,92,75,81,45,31,43,57\n34,94,16,65,48,57,82,31,23,27,83,28,76\n95,51,62,63,16,34,65,66,69,19,57,82,47\n82,57,84,65,78,31,16,67,66\n64,39,92,81,89,69,66\n59,95,18,68,15,34,35,51,19,92,66,56,94,81,73,62,78\n83,28,64,29,39,76,45,75,53,92,81,89,73,68,26,21,51,69,63,56,62\n66,73,39,64,56,76,59\n68,26,69,56,85,43,88\n67,35,78,94,16,65,48,88,57,82,47,23,49,79,83,28,64\n92,81,26,51,69,63,62,15,95,19,78,34,94\n81,59,73,68,26,51,63,56,15,95,35,34,16\n79,83,64,45,53,81,68,26,84,51,69,63,56\n89,53,84,39,62,63,51,75,64,81,26,18,69,83,45,29,56\n82,87,39,88,23,57,48,85,76,83,92,47,43\n48,43,57,27,87,79,83,76,45,75,53,92,81\n82,81,75,39,88\n43,88,57,82,31,47,23,27,87,86,49,79,83,28,64,29,39,76,45,75,53,81,59\n88,87,86,49,79,83,28,39,76,45,92,81,89\n59,76,29,23,89,79,31,73,45,82,87,92,86\n66,95,19,67,35,78,34,94,16,85,48,43,88,57,82,31,47,23,27,87,86,49,79\n23,27,86,79,83,28,64,29,39,76,45,92,59,89,73,68,21\n23,31,39,53,89,64,79,73,59,45,92\n63,85,66,35,65,15,31,62,95\n35,88,31,78,23,87,15,49,95,27,57\n79,83,28,64,29,76,45,75,53,92,81,59,89,68,26,21,51,69,63\n43,16,73,34,19,66,62\n84,51,56,62,95,67,78,34,85,48,57,82,31\n76,45,75,53,92,81,59,18,73,26,21,51,69,63,56,15,66,95,19\n49,79,83,28,64,29,39,45,75,53,92,81,59,89,18,73,68,26,21,84,51,69,63\n63,51,34,19,15,65,31,57,48,95,88,66,56,67,62,16,35,94,78,84,43\n45,48,83,43,65,29,94,82,76,23,39\n83,49,47,45,88,64,85,28,27\n31,19,35,16,49,88,65,43,48,83,94,67,28\n84,65,88,51,85,43,78,19,21,69,48,66,15,35,68\n21,15,66,19,35,78,94,16,65,88,57\n19,67,78,34,94,65,85,48,43,88,57,47,23,27,87,86,49,83,28\n67,82,87,48,23,65,43,19,95,56,66,35,16\n88,82,31,47,23,27,87,86,49,79,83,28,64,29,39,76,45,53,81,59,89\n92,81,59,73,68,26,21,84,51,69,63,56,15,66,95,19,67,35,78,34,94\n79,76,29,21,68,86,83,53,59,26,49,89,27,87,45,28,81\n49,79,83,28,64,29,39,76,45,75,53,92,81,59,8" <> ...]

     

       34
       34
       +
       ```

     

       35
       35
       +
       

     

       36
       36
       +
       ```elixir

     

       37
       37
       +
       orderings =

     

       38
       38
       +
         orderings

     

       39
       39
       +
         |> String.split("\n", trim: true)

     

       40
       40
       +
         |> Enum.map(fn row ->

     

       41
       41
       +
           row

     

       42
       42
       +
           |> String.split("|")

     

       43
       43
       +
           |> Enum.map(&String.to_integer/1)

     

       44
       44
       +
           |> List.to_tuple()

     

       45
       45
       +
         end)

     

       46
       46
       +
       

     

       47
       47
       +
       prev =

     

       48
       48
       +
         orderings

     

       49
       49
       +
         |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

       50
       50
       +
       ```

     

       51
       51
       +
       

     

       52
       52
       +
       <!-- livebook:{"output":true} -->

     

       53
       53
       +
       

     

       54
       54
       +
       ```

     

       55
       55
       +
       %{

     

       56
       56
       +
         73 => [28, 92, 29, 23, 45, 76, 53, 79, 82, 86, 39, 87, 18, 59, 57, 64, 89, 49, 27, 75, 81, 83, 47,

     

       57
       57
       +
          31],

     

       58
       58
       +
         23 => [47, 63, 31, 56, 65, 51, 19, 82, 88, 43, 85, 78, 67, 57, 16, 62, 66, 95, 48, 15, 35, 34, 94,

     

       59
       59
       +
          69],

     

       60
       60
       +
         29 => [28, 47, 23, 65, 79, 82, 88, 86, 43, 85, 78, 87, 67, 57, 64, 16, 49, 27, 48, 83, 35, 34, 94,

     

       61
       61
       +
          31],

     

       62
       62
       +
         47 => [34, 94, 31, 56, 51, 19, 82, 88, 43, 85, 78, 84, 67, 57, 16, 62, 66, 95, 48, 15, 35, 69, 63,

     

       63
       63
       +
          65],

     

       64
       64
       +
         89 => [29, 31, 23, 45, 76, 53, 79, 82, 88, 86, 43, 39, 87, 59, 57, 64, 49, 27, 75, 28, 81, 83, 47,

     

       65
       65
       +
          92],

     

       66
       66
       +
         43 => [15, 35, 94, 69, 63, 56, 65, 51, 19, 21, 26, 68, 85, 78, 18, 84, 67, 73, 16, 62, 66, 95, 48,

     

       67
       67
       +
          34],

     

       68
       68
       +
         39 => [34, 23, 65, 79, 82, 88, 86, 43, 85, 78, 87, 57, 64, 16, 49, 27, 28, 48, 83, 47, 35, 94, 29,

     

       69
       69
       +
          31],

     

       70
       70
       +
         45 => [34, 31, 23, 65, 76, 79, 82, 88, 86, 43, 85, 39, 87, 57, 64, 16, 49, 27, 28, 48, 83, 47, 94,

     

       71
       71
       +
          29],

     

       72
       72
       +
         48 => [95, 15, 35, 94, 63, 56, 65, 51, 19, 21, 26, 68, 85, 78, 18, 84, 67, 73, 16, 89, 62, 66, 34,

     

       73
       73
       +
          69],

     

       74
       74
       +
         57 => [48, 94, 69, 63, 56, 19, 21, 88, 43, 26, 68, 85, 78, 84, 67, 16, 62, 66, 95, 15, 35, 34, 65,

     

       75
       75
       +
          51],

     

       76
       76
       +
         26 => [83, 92, 31, 23, 45, 76, 53, 79, 86, 68, 39, 87, 18, 59, 73, 64, 89, 49, 27, 75, 28, 81, 47,

     

       77
       77
       +
          29],

     

       78
       78
       +
         69 => [83, 92, 45, 76, 53, 51, 79, 21, 86, 26, 68, 39, 87, 18, 84, 59, 73, 64, 89, 49, 75, 28, 81,

     

       79
       79
       +
          29],

     

       80
       80
       +
         88 => [34, 94, 65, 51, 19, 21, 43, 26, 68, 85, 78, 84, 67, 73, 16, 62, 66, 95, 48, 15, 35, 69, 63,

     

       81
       81
       +
          56],

     

       82
       82
       +
         63 => [83, 29, 69, 45, 76, 53, 51, 79, 21, 86, 26, 68, 39, 18, 84, 59, 73, 64, 89, 49, 75, 28, 81,

     

       83
       83
       +
          92],

     

       84
       84
       +
         31 => [15, 69, 56, 65, 51, 19, 82, 21, 88, 43, 85, 78, 84, 67, 57, 16, 62, 66, 95, 48, 35, 34, 94,

     

       85
       85
       +
          63],

     

       86
       86
       +
         81 => [31, 23, 45, 76, 53, 79, 82, 88, 86, 43, 85, 39, 87, 57, 64, 49, 27, 75, 28, 48, 83, 47, 92,

     

       87
       87
       +
          29],

     

       88
       88
       +
         76 => [34, 94, 29, 31, 23, 65, 79, 82, 88, 86, 43, 85, 39, 78, 87, 57, 64, 16, 49, 27, 28, 48, 83,

     

       89
       89
       +
          47],

     

       90
       90
       +
         34 => [35, 92, 69, 63, 56, 53, 51, 19, 21, 26, 68, 78, 18, 84, 59, 67, 73, 89, 62, 66, 75, 95, 81,

     

       91
       91
       +
          15],

     

       92
       92
       +
         28 => [35, 94, 31, 23, 65, 79, 19, 82, 88, 86, 43, 85, 78, 87, 67, 57, 16, 49, 27, 95, 48, 83, 47,

     

       93
       93
       +
          34],

     

       94
       94
       +
         85 => [35, 34, 94, 69, 63, 56, 65, 51, 19, 21, 26, 68, 78, 18, 84, 59, 67, 73, 16, 89, 62, 66, 95,

     

       95
       95
       +
          15],

     

       96
       96
       +
         64 => [48, 83, 35, 94, 31, 65, 79, 19, 82, 88, 86, 43, 85, 78, 87, 67, 57, 16, 49, 27, 28, 47, 34,

     

       97
       97
       +
          23],

     

       98
       98
       +
         68 => [83, 23, 45, 53, 79, 82, 86, 39, 87, 18, 59, 73, 64, 89, 49, 27, 75, 28, 81, 47, 92, 29, 31,

     

       99
       99
       +
          76],

     

       100
       100
       +
         86 => [48, 31, 56, 23, 19, 82, 88, 43, 85, 78, 87, 67, 57, 16, 27, 62, 66, 95, 15, 47, 35, 34, 94,

     

       101
       101
       +
          65],

     

       102
       102
       +
         51 => [81, 29, 45, 76, 53, 79, 21, 86, 26, 68, 39, 87, 18, 84, 59, 73, 64, 89, 49, 27, 75, 28, 83,

     

       103
       103
       +
          92],

     

       104
       104
       +
         59 => [48, 47, 92, 29, 31, 23, 45, 76, 53, 79, 82, 88, 86, 43, 39, 87, 57, 64, 49, 27, 75, 28, 81,

     

       105
       105
       +
          83],

     

       106
       106
       +
         95 => [81, 29, 56, 45, 76, 51, 21, 26, 68, 39, 18, 84, 59, 73, 64, 89, 62, 66, 75, 15, 92, 69, 63,

     

       107
       107
       +
          53],

     

       108
       108
       +
         78 => [35, 69, 63, 56, 45, 53, 51, 19, 21, 26, 68, 18, 84, 59, 67, 73, 89, 62, 66, 75, 95, 81, 15,

     

       109
       109
       +
          ...],

     

       110
       110
       +
         15 => [92, 29, 69, 45, 53, 51, 21, 26, 68, 39, 18, 84, 59, 73, 64, 89, 62, 75, 28, 81, 83, 63,

     

       111
       111
       +
          ...],

     

       112
       112
       +
         83 => [48, 47, 94, 31, 23, 79, 19, 82, 88, 86, 43, 85, 78, 87, 67, 57, 16, 49, 27, 66, 95, ...],

     

       113
       113
       +
         75 => [29, 76, 79, 82, 88, 86, 43, 85, 39, 87, 57, 64, 16, 49, 27, 28, 48, 83, 47, 94, ...],

     

       114
       114
       +
         87 => [47, 34, 56, 65, 19, 82, 88, 43, 85, 78, 67, 57, 16, 27, 62, 66, 95, 48, 15, ...],

     

       115
       115
       +
         21 => [75, 23, 45, 76, 53, 79, 86, 26, 68, 39, 87, 18, 59, 73, 64, 89, 49, 27, ...],

     

       116
       116
       +
         82 => [15, 34, 94, 69, 56, 65, 51, 19, 21, 88, 43, 26, 85, 78, 84, 67, 57, ...],

     

       117
       117
       +
         53 => [47, 29, 31, 23, 65, 45, 76, 79, 82, 88, 86, 43, 85, 39, 87, 57, ...],

     

       118
       118
       +
         66 => [29, 69, 63, 45, 76, 53, 51, 21, 26, 68, 39, 18, 84, 59, 73, ...],

     

       119
       119
       +
         35 => [15, 92, 69, 63, 56, 45, 76, 53, 51, 19, 21, 26, 68, 18, ...],

     

       120
       120
       +
         56 => [81, 83, 69, 63, 45, 76, 53, 51, 79, 21, 26, 68, 39, ...],

     

       121
       121
       +
         62 => [29, 63, 56, 45, 76, 51, 79, 21, 26, 68, 39, 18, ...],

     

       122
       122
       +
         49 => [15, 34, 94, 31, 65, 19, 82, 88, 86, 43, 85, ...],

     

       123
       123
       +
         27 => [63, 23, 65, 19, 82, 88, 43, 85, 78, 67, ...],

     

       124
       124
       +
         84 => [83, 92, 23, 53, 79, 21, 86, 26, 68, ...],

     

       125
       125
       +
         94 => [35, 69, 63, 53, 51, 19, 21, 26, ...],

     

       126
       126
       +
         92 => [31, 65, 45, 76, 53, 79, 82, ...],

     

       127
       127
       +
         19 => [95, 92, 63, 45, 76, 53, ...],

     

       128
       128
       +
         67 => [92, 76, 53, 51, 19, ...],

     

       129
       129
       +
         65 => [34, 63, 56, 51, ...],

     

       130
       130
       +
         18 => [47, 92, 29, ...],

     

       131
       131
       +
         79 => [47, 35, ...],

     

       132
       132
       +
         16 => [95, ...]

     

       133
       133
       +
       }

     

       134
       134
       +
       ```

     

       135
       135
       +
       

     

       136
       136
       +
       ```elixir

     

       137
       137
       +
       jobs =

     

       138
       138
       +
         jobs

     

       139
       139
       +
         |> String.split("\n", trim: true)

     

       140
       140
       +
         |> Enum.map(fn row ->

     

       141
       141
       +
           row

     

       142
       142
       +
           |> String.split(",")

     

       143
       143
       +
           |> Enum.map(&String.to_integer/1)

     

       144
       144
       +
         end)

     

       145
       145
       +
       ```

     

       146
       146
       +
       

     

       147
       147
       +
       <!-- livebook:{"output":true} -->

     

       148
       148
       +
       

     

       149
       149
       +
       ```

     

       150
       150
       +
       [

     

       151
       151
       +
         [94, 68, 73, 78, 15, 65, 43, 66, 62],

     

       152
       152
       +
         [34, 65, 85, 48, 82, 47, 23, 87, 49, 79, 83, 28, 29],

     

       153
       153
       +
         [57, 82, 27, 87, 83, 28, 29, 39, 76, 45, 75, 53, 92, 81, 18],

     

       154
       154
       +
         [29, 86, 68, 39, 81, 45, 75, 76, 31, 53, 64, 23, 92],

     

       155
       155
       +
         [31, 28, 83, 49, 87, 79, 82, 64, 16, 48, 86],

     

       156
       156
       +
         [45, 89, 73, 53, 59, 68, 28, 83, 86, 79, 69, 76, 39],

     

       157
       157
       +
         [31, 19, 88, 35, 23, 43, 86, 79, 48, 16, 57, 82, 27, 87, 67, 65, 78, 34, 49, 47, 66],

     

       158
       158
       +
         [31, 47, 23, 27, 87, 49, 79, 83, 28, 64, 29, 76, 45, 75, 53, 81, 59, 89, 18, 73, 68],

     

       159
       159
       +
         [26, 95, 73, 56, 81, 89, 59, 34, 92, 94, 21],

     

       160
       160
       +
         [16, 63, 34, 19, 66, 65, 47, 56, 31, 82, 51, 85, 57, 67, 88, 62, 48, 78, 95, 35, 15],

     

       161
       161
       +
         [62, 15, 66, 95, 19, 67, 35, 78, 94, 16, 65, 48, 43, 88, 82, 31, 47, 23, 27, 87, 86],

     

       162
       162
       +
         [62, 15, 66, 95, 67, 35, 34, 16, 65, 43, 88, 82, 31, 47, 86],

     

       163
       163
       +
         [28, 68, 83, 31, 59, 89, 29, 73, 39, 75, 92, 86, 76, 45, 49, 64, 18, 81, 87, 27, 79, 23, 47],

     

       164
       164
       +
         [81, 78, 26, 16, 59, 62, 51, 19, 21, 56, 68, 94, 18, 73, 69, 35, 89, 84, 66],

     

       165
       165
       +
         [83, 76, 75, 53, 92, 81, 73, 26, 63, 56, 62],

     

       166
       166
       +
         [53, 27, 29, 79, 28, 88, 85, 31, 47],

     

       167
       167
       +
         [29, 75, 43, 31, 83, 57, 49, 27, 48, 64, 23, 87, 86, 76, 79, 53, 45],

     

       168
       168
       +
         ~c"?\e+_N8\"",

     

       169
       169
       +
         [83, 59, 89, 81, 18, 84, 68, 76, 69, 26, 62, 63, 56, 75, 73, 92, 64, 53, 28, 51, 29],

     

       170
       170
       +
         [75, 53, 92, 18, 73, 68, 26, 51, 69, 63, 15, 19, 67, 35, 78],

     

       171
       171
       +
         [48, 31, 23, 27, 87, 86, 28, 64, 29, 76, 75],

     

       172
       172
       +
         [16, 51, 62, 43, 15, 68, 78, 65, 88, 19, 34, 85, 26, 48, 95, 94, 67, 56, 84, 69, 66],

     

       173
       173
       +
         [65, 82, 23, 87, 86, 75, 48, 49, 31, 16, 57, 45, 43, 47, 29],

     

       174
       174
       +
         [29, 76, 45, 75, 81, 18, 73, 21, 56, 62, 95],

     

       175
       175
       +
         [18, 67, 21, 15, 63, 59, 84, 66, 69, 26, 34, 68, 35, 95, 81, 92, 19],

     

       176
       176
       +
         [49, 79, 39, 76, 53, 92, 59, 89, 18, 68, 51, 69, 63],

     

       177
       177
       +
         [85, 15, 43, 62, 84, 88, 57, 16, 31, 95, 69],

     

       178
       178
       +
         [21, 51, 43, 16, 94, 78, 19],

     

       179
       179
       +
         [87, 86, 49, 79, 83, 28, 39, 76, 45, 53, 92, 89, 18, 68, 26, 21, 51],

     

       180
       180
       +
         [51, 69, 62, 35, 88, 15, 16, 21, 48, 57, 26, 78, 65, 43, 34, 95, 19],

     

       181
       181
       +
         [49, 78, 16, 94, 31, 23, 65],

     

       182
       182
       +
         [87, 83, 29, 45, 59, 73, 51],

     

       183
       183
       +
         [34, 94, 16, 85, 48, 43, 88, 57, 82, 23, 87, 86, 79, 83, 28, 29, 76],

     

       184
       184
       +
         [84, 51, 69, 63, 56, 62, 15, 66, 95, 19, 67, 35, 78, 34, 94, 85, ...],

     

       185
       185
       +
         [53, 69, 49, 84, 51, 89, 28, 63, 29],

     

       186
       186
       +
         [83, 21, 64, 68, 75, 59, 87, 45, 76, 23, 29, 73, 18, 27, ...],

     

       187
       187
       +
         [62, 15, 67, 35, 16, 43, 86],

     

       188
       188
       +
         [88, 31, 23, 83, 39],

     

       189
       189
       +
         [27, 87, 86, 49, 83, 64, 39, 76, 75, 53, 89, ...],

     

       190
       190
       +
         [53, 81, 21, 51, 63, 15, 95, 35, 34],

     

       191
       191
       +
         [95, 51, 31, 84, 15, 94, 43],

     

       192
       192
       +
         [92, 76, 59, 63, 73, 64, 84, 81, ...],

     

       193
       193
       +
         [89, 18, 62, 15, 94, 65, 85],

     

       194
       194
       +
         ~c"\\D?_CN^",

     

       195
       195
       +
         [94, 68, 95, 84, 16, ...],

     

       196
       196
       +
         [35, 34, 16, 65, ...],

     

       197
       197
       +
         [15, 66, 95, ...],

     

       198
       198
       +
         [69, 63, ...],

     

       199
       199
       +
         [85, ...],

     

       200
       200
       +
         [...],

     

       201
       201
       +
         ...

     

       202
       202
       +
       ]

     

       203
       203
       +
       ```

     

       204
       204
       +
       

     

       205
       205
       +
       ```elixir

     

       206
       206
       +
       defmodule PrintQueue do

     

       207
       207
       +
         def valid?(input, prev), do: do_valid?([], input, prev)

     

       208
       208
       +
       

     

       209
       209
       +
         defp do_valid?(_, [], _prev), do: true

     

       210
       210
       +
         defp do_valid?(visited, [a | rest], prev) do

     

       211
       211
       +
           if Enum.any?(prev[a], & &1 in rest) do

     

       212
       212
       +
             false

     

       213
       213
       +
           else

     

       214
       214
       +
             do_valid?([a | visited], rest, prev)

     

       215
       215
       +
           end

     

       216
       216
       +
         end

     

       217
       217
       +
       

     

       218
       218
       +
         def middle(list) do

     

       219
       219
       +
           Enum.at(list, div(length(list), 2))

     

       220
       220
       +
         end

     

       221
       221
       +
       end

     

       222
       222
       +
       ```

     

       223
       223
       +
       

     

       224
       224
       +
       <!-- livebook:{"output":true} -->

     

       225
       225
       +
       

     

       226
       226
       +
       ```

     

       227
       227
       +
       {:module, PrintQueue, <<70, 79, 82, 49, 0, 0, 10, ...>>, {:middle, 1}}

     

       228
       228
       +
       ```

     

       229
       229
       +
       

     

       230
       230
       +
       ```elixir

     

       231
       231
       +
       {valid, invalid} = Enum.split_with(jobs, &PrintQueue.valid?(&1, prev))

     

       232
       232
       +
       ```

     

       233
       233
       +
       

     

       234
       234
       +
       <!-- livebook:{"output":true} -->

     

       235
       235
       +
       

     

       236
       236
       +
       ```

     

       237
       237
       +
       {[

     

       238
       238
       +
          [34, 65, 85, 48, 82, 47, 23, 87, 49, 79, 83, 28, 29],

     

       239
       239
       +
          [57, 82, 27, 87, 83, 28, 29, 39, 76, 45, 75, 53, 92, 81, 18],

     

       240
       240
       +
          [31, 47, 23, 27, 87, 49, 79, 83, 28, 64, 29, 76, 45, 75, 53, 81, 59, 89, 18, 73, 68],

     

       241
       241
       +
          [62, 15, 66, 95, 19, 67, 35, 78, 94, 16, 65, 48, 43, 88, 82, 31, 47, 23, 27, 87, 86],

     

       242
       242
       +
          [62, 15, 66, 95, 67, 35, 34, 16, 65, 43, 88, 82, 31, 47, 86],

     

       243
       243
       +
          [83, 76, 75, 53, 92, 81, 73, 26, 63, 56, 62],

     

       244
       244
       +
          [75, 53, 92, 18, 73, 68, 26, 51, 69, 63, 15, 19, 67, 35, 78],

     

       245
       245
       +
          [48, 31, 23, 27, 87, 86, 28, 64, 29, 76, 75],

     

       246
       246
       +
          [29, 76, 45, 75, 81, 18, 73, 21, 56, 62, 95],

     

       247
       247
       +
          [49, 79, 39, 76, 53, 92, 59, 89, 18, 68, 51, 69, 63],

     

       248
       248
       +
          [87, 86, 49, 79, 83, 28, 39, 76, 45, 53, 92, 89, 18, 68, 26, 21, 51],

     

       249
       249
       +
          [87, 83, 29, 45, 59, 73, 51],

     

       250
       250
       +
          [34, 94, 16, 85, 48, 43, 88, 57, 82, 23, 87, 86, 79, 83, 28, 29, 76],

     

       251
       251
       +
          [84, 51, 69, 63, 56, 62, 15, 66, 95, 19, 67, 35, 78, 34, 94, 85, 43, 88, 57, 82, 31],

     

       252
       252
       +
          [62, 15, 67, 35, 16, 43, 86],

     

       253
       253
       +
          [88, 31, 23, 83, 39],

     

       254
       254
       +
          [27, 87, 86, 49, 83, 64, 39, 76, 75, 53, 89, 73, 26, 21, 84],

     

       255
       255
       +
          [53, 81, 21, 51, 63, 15, 95, 35, 34],

     

       256
       256
       +
          [89, 18, 62, 15, 94, 65, 85],

     

       257
       257
       +
          ~c"\\D?_CN^",

     

       258
       258
       +
          [35, 34, 16, 65, 48, 27, 86, 83, 29],

     

       259
       259
       +
          [15, 66, 95, 67, 34, 94, 85, 48, 43, 82, 23],

     

       260
       260
       +
          [69, 63, 56, 66, 95, 19, 67, 35, 78, 34, 94, 16, 65, 85, 48, 43, 23],

     

       261
       261
       +
          [65, 85, 48, 43, 82, 31, 47, 49, 79, 28, 39, 76, 45, 75, 53],

     

       262
       262
       +
          ~c"V1O@'L-K;YT3E",

     

       263
       263
       +
          [92, 81, 59, 89, 18, 73, 26, 21, 84, 51, 69, 63, 56, 62, 15, 66, 95, 19, 67, 35, 78, 34, 94],

     

       264
       264
       +
          [26, 84, 69, 63, 56, 62, 66, 19, 67, 78, 34, 94, 16, 85, 43, 88, 57],

     

       265
       265
       +
          [34, 94, 16, 65, 48, 57, 82, 31, 23, 27, 83, 28, 76],

     

       266
       266
       +
          ~c"@'\\QYEB",

     

       267
       267
       +
          [83, 28, 64, 29, 39, 76, 45, 75, 53, 92, 81, 89, 73, 68, 26, 21, 51, 69, 63, ...],

     

       268
       268
       +
          [68, 26, 69, 56, 85, 43, 88],

     

       269
       269
       +
          [67, 35, 78, 94, 16, 65, 48, 88, 57, 82, 47, 23, 49, 79, 83, 28, 64],

     

       270
       270
       +
          [92, 81, 26, 51, 69, 63, 62, 15, 95, 19, 78, 34, 94],

     

       271
       271
       +
          [81, 59, 73, 68, 26, 51, 63, 56, 15, 95, 35, 34, 16],

     

       272
       272
       +
          [79, 83, 64, 45, 53, 81, 68, 26, 84, 51, 69, 63, 56],

     

       273
       273
       +
          ~c"0+9\eWOSL-K5\\Q",

     

       274
       274
       +
          [43, 88, 57, 82, 31, 47, 23, 27, 87, 86, 49, 79, ...],

     

       275
       275
       +
          [88, 87, 86, 49, 79, 83, 28, 39, 76, 45, 92, ...],

     

       276
       276
       +
          [66, 95, 19, 67, 35, 78, 34, 94, 16, 85, ...],

     

       277
       277
       +
          [23, 27, 86, 79, 83, 28, 64, 29, 39, ...],

     

       278
       278
       +
          [79, 83, 28, 64, 29, 76, 45, 75, ...],

     

       279
       279
       +
          [84, 51, 56, 62, 95, 67, 78, ...],

     

       280
       280
       +
          [76, 45, 75, 53, 92, 81, ...],

     

       281
       281
       +
          [49, 79, 83, 28, 64, ...],

     

       282
       282
       +
          [21, 15, 66, 19, ...],

     

       283
       283
       +
          [19, 67, 78, ...],

     

       284
       284
       +
          [88, 82, ...],

     

       285
       285
       +
          [92, ...],

     

       286
       286
       +
          [...],

     

       287
       287
       +
          ...

     

       288
       288
       +
        ],

     

       289
       289
       +
        [

     

       290
       290
       +
          [94, 68, 73, 78, 15, 65, 43, 66, 62],

     

       291
       291
       +
          [29, 86, 68, 39, 81, 45, 75, 76, 31, 53, 64, 23, 92],

     

       292
       292
       +
          [31, 28, 83, 49, 87, 79, 82, 64, 16, 48, 86],

     

       293
       293
       +
          [45, 89, 73, 53, 59, 68, 28, 83, 86, 79, 69, 76, 39],

     

       294
       294
       +
          [31, 19, 88, 35, 23, 43, 86, 79, 48, 16, 57, 82, 27, 87, 67, 65, 78, 34, 49, 47, 66],

     

       295
       295
       +
          [26, 95, 73, 56, 81, 89, 59, 34, 92, 94, 21],

     

       296
       296
       +
          [16, 63, 34, 19, 66, 65, 47, 56, 31, 82, 51, 85, 57, 67, 88, 62, 48, 78, 95, 35, 15],

     

       297
       297
       +
          [28, 68, 83, 31, 59, 89, 29, 73, 39, 75, 92, 86, 76, 45, 49, 64, 18, 81, 87, 27, 79, 23, 47],

     

       298
       298
       +
          [81, 78, 26, 16, 59, 62, 51, 19, 21, 56, 68, 94, 18, 73, 69, 35, 89, 84, 66],

     

       299
       299
       +
          [53, 27, 29, 79, 28, 88, 85, 31, 47],

     

       300
       300
       +
          [29, 75, 43, 31, 83, 57, 49, 27, 48, 64, 23, 87, 86, 76, 79, 53, 45],

     

       301
       301
       +
          ~c"?\e+_N8\"",

     

       302
       302
       +
          [83, 59, 89, 81, 18, 84, 68, 76, 69, 26, 62, 63, 56, 75, 73, 92, 64, 53, 28, 51, 29],

     

       303
       303
       +
          [16, 51, 62, 43, 15, 68, 78, 65, 88, 19, 34, 85, 26, 48, 95, 94, 67, 56, 84, 69, 66],

     

       304
       304
       +
          [65, 82, 23, 87, 86, 75, 48, 49, 31, 16, 57, 45, 43, 47, 29],

     

       305
       305
       +
          [18, 67, 21, 15, 63, 59, 84, 66, 69, 26, 34, 68, 35, 95, 81, 92, 19],

     

       306
       306
       +
          [85, 15, 43, 62, 84, 88, 57, 16, 31, 95, 69],

     

       307
       307
       +
          [21, 51, 43, 16, 94, 78, 19],

     

       308
       308
       +
          [51, 69, 62, 35, 88, 15, 16, 21, 48, 57, 26, 78, 65, 43, 34, 95, 19],

     

       309
       309
       +
          [49, 78, 16, 94, 31, 23, 65],

     

       310
       310
       +
          [53, 69, 49, 84, 51, 89, 28, 63, 29],

     

       311
       311
       +
          [83, 21, 64, 68, 75, 59, 87, 45, 76, 23, 29, 73, 18, 27, 28, 81, 26, 53, 86, 89, 39, 92, 79],

     

       312
       312
       +
          [95, 51, 31, 84, 15, 94, 43],

     

       313
       313
       +
          [92, 76, 59, 63, 73, 64, 84, 81, 28, 75, 15, 29, 68, 62, 69],

     

       314
       314
       +
          [94, 68, 95, 84, 16, 63, 15, 35, 26, 34, 62, 73, 19, 51, 56, 67, 18, 21, 69, 65, 66, 59, 78],

     

       315
       315
       +
          [85, 27, 66, 19, 43, 62, 86],

     

       316
       316
       +
          [21, 89, 19, 84, 94, 35, 68, 65, 18, 51, 16, 63, 59, 67, 34, 56, 73, 78, 15, 69, 95, ...],

     

       317
       317
       +
          [83, 23, 39, 27, 76, 47, 49, 29, 48, 86, 82, 53, 88, 64, 92, 75, 81, 45, 31, 43, ...],

     

       318
       318
       +
          [95, 51, 62, 63, 16, 34, 65, 66, 69, 19, 57, 82, 47],

     

       319
       319
       +
          [82, 57, 84, 65, 78, 31, 16, 67, 66],

     

       320
       320
       +
          [59, 95, 18, 68, 15, 34, 35, 51, 19, 92, 66, 56, 94, 81, 73, 62, 78],

     

       321
       321
       +
          ~c"BI'@8L;",

     

       322
       322
       +
          [89, 53, 84, 39, 62, 63, 51, 75, 64, 81, 26, 18, 69, 83, 45, ...],

     

       323
       323
       +
          [82, 87, 39, 88, 23, 57, 48, 85, 76, 83, 92, 47, 43],

     

       324
       324
       +
          ~c"RQK'X",

     

       325
       325
       +
          [59, 76, 29, 23, 89, 79, 31, 73, 45, 82, 87, 92, ...],

     

       326
       326
       +
          [23, 31, 39, 53, 89, 64, 79, 73, 59, 45, 92],

     

       327
       327
       +
          [63, 85, 66, 35, 65, 15, 31, 62, 95],

     

       328
       328
       +
          [35, 88, 31, 78, 23, 87, 15, 49, 95, ...],

     

       329
       329
       +
          [43, 16, 73, 34, 19, 66, 62],

     

       330
       330
       +
          [63, 51, 34, 19, 15, 65, 31, ...],

     

       331
       331
       +
          [45, 48, 83, 43, 65, 29, ...],

     

       332
       332
       +
          [83, 49, 47, 45, 88, ...],

     

       333
       333
       +
          [31, 19, 35, 16, ...],

     

       334
       334
       +
          [84, 65, 88, ...],

     

       335
       335
       +
          [67, 82, ...],

     

       336
       336
       +
          [79, ...],

     

       337
       337
       +
          [...],

     

       338
       338
       +
          ...

     

       339
       339
       +
        ]}

     

       340
       340
       +
       ```

     

       341
       341
       +
       

     

       342
       342
       +
       ## Part 1

     

       343
       343
       +
       

     

       344
       344
       +
       ```elixir

     

       345
       345
       +
       valid

     

       346
       346
       +
       |> Enum.map(&PrintQueue.middle/1)

     

       347
       347
       +
       |> Enum.sum()

     

       348
       348
       +
       ```

     

       349
       349
       +
       

     

       350
       350
       +
       <!-- livebook:{"output":true} -->

     

       351
       351
       +
       

     

       352
       352
       +
       ```

     

       353
       353
       +
       6051

     

       354
       354
       +
       ```

     

       355
       355
       +
       

     

       356
       356
       +
       ## Part 2

     

       357
       357
       +
       

     

       358
       358
       +
       ```elixir

     

       359
       359
       +
       invalid

     

       360
       360
       +
       |> Enum.map(fn job ->

     

       361
       361
       +
         Enum.sort(job, fn a, b -> b in prev[a] end)

     

       362
       362
       +
       end)

     

       363
       363
       +
       |> Enum.map(&PrintQueue.middle/1)

     

       364
       364
       +
       |> Enum.sum()

     

       365
       365
       +
       ```

     

       366
       366
       +
       

     

       367
       367
       +
       <!-- livebook:{"output":true} -->

     

       368
       368
       +
       

     

       369
       369
       +
       ```

     

       370
       370
       +
       5093

     

       371
       371
       +
       ```

     

       372
       372
       +
       

     

       373
       373
       +
       <!-- livebook:{"offset":27803,"stamp":{"token":"XCP.89VYFJDxWhhYqFwu165HzJaFBGbiSzyXWCSnD4rBE7dhN7HuS1Im6xp-8VPztVgcmSlMso948ZvV8MkBmy35qbTi8rDfbB5Zr2PQ-9P6LUjHMKF8Wu3IKPm7UjkY_cOiA6k","version":2}} -->

+187

2024/day06.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 06

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, :arrays])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI2Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "6", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "...#..................#...................#......................#..............................#.............................#...\n....#.......................#........#.#..............##...........#.....#..........#..........................#..................\n.............#........................................................................#.........#.#..#..#..........#..............\n..........#.......#..........#..................#........##...................#..............#....................................\n....................#..........................................................#..#.....................................#.........\n....#............................#..............................................#.....................#..........##....#..........\n.......#.............#......................................................................#.............#.........#.............\n....###......................#....#...........#.....#................................#..........................#.................\n..........#..#...........#..#........................................................#.....#...........#................#.........\n..#....#......#....#....#...................................................................#.....................................\n....................#............#............................................#......#....#...............................#.......\n..........#.......#.........#.......#.............................................................................................\n.......#...#.......................................#...................#..........................................................\n.......#........#............................#.....#.......#..............................................#..................#...#\n.....................#.................................#................#...#...............#.....#.#..........................#..\n.....#..........................................#......................#.............##..............................#........#...\n.....#......#.........................#..........................#..........................................................#..#..\n.#......#.............#......#.................................................#.....#...................##......#................\n.............................................................................##...................................................\n........................................#.......................................#........#.............................#.#.......#\n...........#.....................................#.............................#......#......#..#....................#..#.........\n.............................................#.......................#..................##....#.....#.............................\n........................#..............................................................#..........................................\n#..............#.........................#........#...#...............#..............#..................#....................##...\n...#...#.............................#.......#................................................#........................#....#.....\n.....#.........................#..#.......................#..........#.....................#..................#.#.....#...........\n..................#........#..#.......#...................................................................................#....#..\n..#...#...............................................#.#..#........................................................#....#......#.\n...............#...............#..........................#............................#..........#.............#.................\n............#.....#........#.........................................................#........#........#.....#........#......#....\n............................#.........#....#........#.....#...#.............#.................................#...................\n........#..................#....#.." <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       map =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.with_index()

     

       30
       30
       +
         |> Enum.flat_map(fn {row, y} ->

     

       31
       31
       +
           row

     

       32
       32
       +
           |> String.to_charlist()

     

       33
       33
       +
           |> Enum.with_index()

     

       34
       34
       +
           |> Enum.map(fn {v, x} -> {{y, x}, v} end)

     

       35
       35
       +
         end)

     

       36
       36
       +
         |> Map.new()

     

       37
       37
       +
       ```

     

       38
       38
       +
       

     

       39
       39
       +
       <!-- livebook:{"output":true} -->

     

       40
       40
       +
       

     

       41
       41
       +
       ```

     

       42
       42
       +
       %{

     

       43
       43
       +
         {18, 103} => 46,

     

       44
       44
       +
         {76, 13} => 46,

     

       45
       45
       +
         {61, 121} => 46,

     

       46
       46
       +
         {37, 47} => 46,

     

       47
       47
       +
         {65, 63} => 46,

     

       48
       48
       +
         {77, 129} => 46,

     

       49
       49
       +
         {120, 47} => 46,

     

       50
       50
       +
         {38, 2} => 46,

     

       51
       51
       +
         {1, 26} => 46,

     

       52
       52
       +
         {116, 69} => 46,

     

       53
       53
       +
         {124, 56} => 46,

     

       54
       54
       +
         {83, 76} => 46,

     

       55
       55
       +
         {117, 125} => 46,

     

       56
       56
       +
         {32, 15} => 46,

     

       57
       57
       +
         {103, 106} => 46,

     

       58
       58
       +
         {30, 113} => 46,

     

       59
       59
       +
         {123, 104} => 46,

     

       60
       60
       +
         {124, 60} => 46,

     

       61
       61
       +
         {89, 14} => 46,

     

       62
       62
       +
         {35, 30} => 46,

     

       63
       63
       +
         {37, 53} => 46,

     

       64
       64
       +
         {4, 5} => 46,

     

       65
       65
       +
         {8, 50} => 46,

     

       66
       66
       +
         {78, 98} => 46,

     

       67
       67
       +
         {101, 62} => 46,

     

       68
       68
       +
         {95, 56} => 46,

     

       69
       69
       +
         {74, 12} => 46,

     

       70
       70
       +
         {102, 74} => 46,

     

       71
       71
       +
         {11, 39} => 46,

     

       72
       72
       +
         {65, 43} => 46,

     

       73
       73
       +
         {22, 38} => 46,

     

       74
       74
       +
         {14, 86} => 46,

     

       75
       75
       +
         {49, 117} => 46,

     

       76
       76
       +
         {20, 41} => 46,

     

       77
       77
       +
         {29, 25} => 46,

     

       78
       78
       +
         {86, 10} => 46,

     

       79
       79
       +
         {83, 36} => 46,

     

       80
       80
       +
         {29, 26} => 46,

     

       81
       81
       +
         {47, 27} => 46,

     

       82
       82
       +
         {4, 81} => 46,

     

       83
       83
       +
         {31, 42} => 46,

     

       84
       84
       +
         {9, 34} => 46,

     

       85
       85
       +
         {13, 124} => 46,

     

       86
       86
       +
         {90, 0} => 46,

     

       87
       87
       +
         {14, 122} => 46,

     

       88
       88
       +
         {120, 42} => 46,

     

       89
       89
       +
         {121, 77} => 46,

     

       90
       90
       +
         {103, 39} => 46,

     

       91
       91
       +
         {102, ...} => 46,

     

       92
       92
       +
         {...} => 46,

     

       93
       93
       +
         ...

     

       94
       94
       +
       }

     

       95
       95
       +
       ```

     

       96
       96
       +
       

     

       97
       97
       +
       ```elixir

     

       98
       98
       +
       {start_pos, _} = start = Enum.find(map, fn {_pos, v} -> v in ~c'^>v<' end)

     

       99
       99
       +
       

     

       100
       100
       +
       map = Map.replace(map, start_pos, ?.)

     

       101
       101
       +
       

     

       102
       102
       +
       start

     

       103
       103
       +
       ```

     

       104
       104
       +
       

     

       105
       105
       +
       <!-- livebook:{"output":true} -->

     

       106
       106
       +
       

     

       107
       107
       +
       ```

     

       108
       108
       +
       {{93, 71}, 94}

     

       109
       109
       +
       ```

     

       110
       110
       +
       

     

       111
       111
       +
       ```elixir

     

       112
       112
       +
       defmodule Guard do

     

       113
       113
       +
         def walk(map, start),

     

       114
       114
       +
           do: walk(map, start, MapSet.new())

     

       115
       115
       +
       

     

       116
       116
       +
         defp walk(map, {pos, dir} = curr, visited) do

     

       117
       117
       +
           if curr in visited do

     

       118
       118
       +
             :loop

     

       119
       119
       +
           else

     

       120
       120
       +
             visited = MapSet.put(visited, curr)

     

       121
       121
       +
       

     

       122
       122
       +
             case Map.fetch(map, next(pos, dir)) do

     

       123
       123
       +
               {:ok, ?#} ->

     

       124
       124
       +
                 walk(map, {pos, turn(dir)}, visited)

     

       125
       125
       +
       

     

       126
       126
       +
               {:ok, ?.} ->

     

       127
       127
       +
                 walk(map, {next(pos, dir), dir}, visited)

     

       128
       128
       +
       

     

       129
       129
       +
               :error ->

     

       130
       130
       +
                 MapSet.new(visited, fn {pos, _} -> pos end)

     

       131
       131
       +
             end

     

       132
       132
       +
           end

     

       133
       133
       +
         end

     

       134
       134
       +
       

     

       135
       135
       +
         defp next({y, x}, ?^), do: {y - 1, x}

     

       136
       136
       +
         defp next({y, x}, ?>), do: {y, x + 1}

     

       137
       137
       +
         defp next({y, x}, ?v), do: {y + 1, x}

     

       138
       138
       +
         defp next({y, x}, ?<), do: {y, x - 1}

     

       139
       139
       +
       

     

       140
       140
       +
         defp turn(?^), do: ?>

     

       141
       141
       +
         defp turn(?>), do: ?v

     

       142
       142
       +
         defp turn(?v), do: ?<

     

       143
       143
       +
         defp turn(?<), do: ?^

     

       144
       144
       +
       end

     

       145
       145
       +
       ```

     

       146
       146
       +
       

     

       147
       147
       +
       <!-- livebook:{"output":true} -->

     

       148
       148
       +
       

     

       149
       149
       +
       ```

     

       150
       150
       +
       {:module, Guard, <<70, 79, 82, 49, 0, 0, 12, ...>>, {:turn, 1}}

     

       151
       151
       +
       ```

     

       152
       152
       +
       

     

       153
       153
       +
       ## Part 1

     

       154
       154
       +
       

     

       155
       155
       +
       ```elixir

     

       156
       156
       +
       orig_path = Guard.walk(map, start)

     

       157
       157
       +
         

     

       158
       158
       +
       MapSet.size(orig_path)

     

       159
       159
       +
       ```

     

       160
       160
       +
       

     

       161
       161
       +
       <!-- livebook:{"output":true} -->

     

       162
       162
       +
       

     

       163
       163
       +
       ```

     

       164
       164
       +
       4433

     

       165
       165
       +
       ```

     

       166
       166
       +
       

     

       167
       167
       +
       ## Part 2

     

       168
       168
       +
       

     

       169
       169
       +
       ```elixir

     

       170
       170
       +
       orig_path

     

       171
       171
       +
       |> MapSet.delete(start_pos)

     

       172
       172
       +
       |> Task.async_stream(fn point ->

     

       173
       173
       +
         map

     

       174
       174
       +
         |> Map.put(point, ?#)

     

       175
       175
       +
         |> Guard.walk(start)

     

       176
       176
       +
         |> Kernel.==(:loop)

     

       177
       177
       +
         end, ordered: false)

     

       178
       178
       +
       |> Enum.count(& &1)

     

       179
       179
       +
       ```

     

       180
       180
       +
       

     

       181
       181
       +
       <!-- livebook:{"output":true} -->

     

       182
       182
       +
       

     

       183
       183
       +
       ```

     

       184
       184
       +
       4432

     

       185
       185
       +
       ```

     

       186
       186
       +
       

     

       187
       187
       +
       <!-- livebook:{"offset":7376,"stamp":{"token":"XCP.Bv-aM7sns5Kb69SQdY4giDFl6fWiJ5L3lnISxUUjGi_DgTgM_r5rl-y8sy2RLl-KbEtOmW99QQsGItLYJhKJmkOZ5pPZ_7Aw3BhkL_ap8RnW8UkOt_OsNdpqoZT7FEDtmFQ","version":2}} -->

+205

2024/day07.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 07

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI3Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "7", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "644197722674: 5 9 46 99 1 5 9 2 22 6 74\n3424919: 67 51 7 561 358\n7160145: 9 9 7 4 8 3 91 2 3 3 5 731\n1133404163: 231 3 49 2 32 128 36\n198444: 9 77 90 347 308 46 3\n258135: 7 61 68 6 249 6\n10677865: 864 7 4 1 9 4 7 7 1 5 367\n1134: 54 7 3\n28760910: 1 6 627 9 752 831\n6740: 82 236 356 10\n983873830: 977 6 267 606 830\n101904: 5 71 29 2 264\n8536122: 5 3 7 388 120\n818217: 8 27 21 484 92 5 214\n9221: 219 23 270 18 5\n216699547: 2 24 46 9 1 55 6 61 9 88\n19040: 434 4 5 2 41 713 28 54\n113740483608: 52 951 38 417 23 17\n1837300: 627 46 5 1 91 6 6 4\n21564: 6 143 330 9 5 9\n100992468: 4 4 2 9 7 69 3 24 92 8 6 8\n522672: 5 226 7 5\n72660535: 181 857 70 5 2 4 1 11\n1553455: 57 842 4 650 374 79\n177565304: 177 5 6 530 7\n123464883: 65 67 315 7 2 45\n162378: 47 799 75 702 74 3\n75882558: 4 4 9 3 8 7 5 29 5 4 57 5\n15486: 5 771 6 1 2 2 8 8 8 8 2 4\n195018949: 237 9 76 61 19 95 4 9 9\n120067914: 12 7 1 282 9 17 7 2 7 79\n10625355: 6 16 906 3 533\n714034: 2 3 60 7 7 90 325 9\n147283595568: 3 311 33 3 57 822 8 93\n2316922: 8 26 41 831 2 94\n182954295: 438 22 56 5 993 4\n17143497694679: 73 169 33 1 4 71 6 79\n758512003463: 3 2 790 700 4 2 2 34 63\n4146569285: 280 8 9 5 6 7 68 4 9 1 2 5\n31770235539495: 589 8 9 1 1 95 3 63 492\n2140548: 7 6 1 4 3 4 8 929 1 3 8 12\n12113461: 291 3 50 772 17 5 2 2\n9197820380208: 1 58 583 110 58 207\n1539915: 88 340 19 5 689\n198635345304: 19 711 980 6 44 341\n43172: 426 8 4 318 1 1 439 3 5\n53202: 5 3 7 1 4 79 62 6 6\n999074: 1 4 221 5 9 71\n107010: 2 1 29 410 3\n1207: 8 600 5 9 567 17 1\n963: 56 902 7\n3661: 87 42 4 3\n55680: 8 7 2 58 8 4\n1443280: 1 33 16 68 39 592\n11791444132: 954 3 412 412 9\n40408: 8 8 513 70 19\n895: 45 9 784 52 8\n3630590257: 5 787 5 98 113 94 57\n1219939: 9 5 183 9 3\n7243377: 1 231 8 2 1 36 6 5 795 3\n10281688290: 728 359 69 874 8 45\n52129140: 78 1 7 407 547 5 2 4 5\n844925: 778 18 78 6 8\n1517768001: 56 213 629 27 17\n1586: 26 1 18 35 9\n897822305: 10 89 7 8 222 55 52\n307677984: 38 946 58 79 2\n11629377: 7 10 83 82 37 548 6 79\n5706366: 203 30 937 6 1 26\n545930: 1 8 696 5 770\n21436: 57 94 4 4 1\n601219587: 2 5 1 2 1 1 4 1 1 912 327\n1210568: 5 3 9 86 1 1 98 2 8 97 6 8\n163672: 311 939 4 1 130 522\n816: 3 9 7 9 5 25 84 186 56\n413330: 71 9 181 504 50\n275151204: 5 8 9 8 4 3 433 1 5 6 7 3\n5565: 47 19 8 7 1 276\n5528836: 1 552 789 9 936\n30771: 42 81 5 12 9\n113510: 99 58 723\n2552925934889: 802 8 795 54 8 372 4 6\n13201: 45 124 77 31 159\n720468: 17 6 92 4 7\n22380384159: 7 8 166 29 159 1 3 2 8 2\n45770: 4 41 765 2 3\n32957: 4 28 886 71\n5110126: 6 173 214 66 8\n1762745: 982 227 3 3 27 3 6 5\n130796643: 131 32 1 5 5 624\n78364255: 8 9 694 57 7 253\n844276: 8 42 224 792 1\n362023: 9 25 594 5 5 40 87 103\n1291399844: 5 6 1 9 39 1 73 9 6 44\n228417920: 25 37 71 9 26 794 8 4\n40050828: 3 27 763 6 9 9 5 1 9 12\n116627652: 7 4 7 1 446 8 4 5 2 4 75 6\n2516095717: 7 385 8 43 59 8 5 46\n655270872: 9 2 8 159 89 2 9 3 89 95\n35298709: 6 41 170 3 2 422 97\n558606: 4 6 5 74 6 53 7 7 100 1 5\n96911: 5 9 75 6 9 665 2 7 9 2 7 8\n429735: 7 72 58 6 9\n9402: 3 453 9 86 920 1 7 88 6\n2948456: 69 251 9 68 456\n254061: 603 70 2 6 789\n27948: 485 575 322 262 17\n90873: 58 49 8 27 31 31 725\n6444009: 5 6 195 7 6 33 13\n17255343: 78 867 42 3 85\n144630242: 490 2 39 11 7 4 39 86 1\n444869: 4 7 8 878 5 479\n253242155: 42 203 6 7 234 57\n1823338: 2 414 9 487 4 6\n25234118: 91 683 58 7 1\n642484013: 917 822 4 6 1 7 9 1 2\n10018629: 99 944 235 99 628\n52518012: 663 80 8 5 99\n52968775714: 217 3 8 2 3 2 9 6 9 9 94 6\n7014: 1 666 9 933 8 70\n1210591: 39 8 40 97 31\n61925382: 366 648 1 1 9 837 29\n1392623100: 92 3 6 6 8 18 8 815 990\n146952: 66 53 92 6 677 43\n16148106: 41 31 9 5 4 39\n972134: 4 36 905 3 28 9 75 54 3\n1699: 9 7 94 2\n38915712: 66 83 4 3 296 2 1\n24871732: 71 178 3 656 148\n1016303031: 229 634 7 499 532\n553520: 7 3 7 22 69\n588423590: 2 1 9 143 8 3 6 923 1 3 4\n8360806312: 1 3 9 850 24 7 857 5 7 5\n462718: 4 6 26 93 26\n21935424: 280 60 96 2 4 2 84\n885836: 8 850 4 5 2 27 704 58 9\n797703006: 1 3 1 8 9 4 9 495 3 7 60 6\n7714822: 2 4 757 959 3 25\n233319196: 881 27 45 10 4 979\n451620568437: 170 6 57 4 9 5 56 8 439\n2836062720: 7 88 111 9 6 6 2 4 3 8 3 2\n81217110: 827 98 9 501 2\n21081: 6 3 41 6 3 1 6 324 8 5 8\n861: 7 7 2 " <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       #puzzle_input =

     

       27
       27
       +
         """

     

       28
       28
       +
         190: 10 19

     

       29
       29
       +
         3267: 81 40 27

     

       30
       30
       +
         83: 17 5

     

       31
       31
       +
         156: 15 6

     

       32
       32
       +
         7290: 6 8 6 15

     

       33
       33
       +
         161011: 16 10 13

     

       34
       34
       +
         192: 17 8 14

     

       35
       35
       +
         21037: 9 7 18 13

     

       36
       36
       +
         292: 11 6 16 20

     

       37
       37
       +
         """

     

       38
       38
       +
       

     

       39
       39
       +
       equations =

     

       40
       40
       +
         puzzle_input

     

       41
       41
       +
         |> String.split("\n", trim: true)

     

       42
       42
       +
         |> Enum.map(fn row ->

     

       43
       43
       +
           {target, ": " <> rest} = Integer.parse(row)

     

       44
       44
       +
       

     

       45
       45
       +
           values =

     

       46
       46
       +
             rest

     

       47
       47
       +
             |> String.split()

     

       48
       48
       +
             |> Enum.map(&String.to_integer/1)

     

       49
       49
       +
       

     

       50
       50
       +
           {target, values}

     

       51
       51
       +
         end)

     

       52
       52
       +
       ```

     

       53
       53
       +
       

     

       54
       54
       +
       <!-- livebook:{"output":true} -->

     

       55
       55
       +
       

     

       56
       56
       +
       ```

     

       57
       57
       +
       warning: code block contains unused literal "190: 10 19\n3267: 81 40 27\n83: 17 5\n156: 15 6\n7290: 6 8 6 15\n161011: 16 10 13\n192: 17 8 14\n21037: 9 7 18 13\n292: 11 6 16 20\n" (remove the literal or assign it to _ to avoid warnings)

     

       58
       58
       +
       └─ Workspace/hauleth/advent-of-code/2024/day07.livemd#cell:7pxlqq2wa3oqdwfr:1

     

       59
       59
       +
       

     

       60
       60
       +
       ```

     

       61
       61
       +
       

     

       62
       62
       +
       <!-- livebook:{"output":true} -->

     

       63
       63
       +
       

     

       64
       64
       +
       ```

     

       65
       65
       +
       [

     

       66
       66
       +
         {644197722674, [5, 9, 46, 99, 1, 5, 9, 2, 22, 6, 74]},

     

       67
       67
       +
         {3424919, [67, 51, 7, 561, 358]},

     

       68
       68
       +
         {7160145, [9, 9, 7, 4, 8, 3, 91, 2, 3, 3, 5, 731]},

     

       69
       69
       +
         {1133404163, [231, 3, 49, 2, 32, 128, 36]},

     

       70
       70
       +
         {198444, [9, 77, 90, 347, 308, 46, 3]},

     

       71
       71
       +
         {258135, [7, 61, 68, 6, 249, 6]},

     

       72
       72
       +
         {10677865, [864, 7, 4, 1, 9, 4, 7, 7, 1, 5, 367]},

     

       73
       73
       +
         {1134, [54, 7, 3]},

     

       74
       74
       +
         {28760910, [1, 6, 627, 9, 752, 831]},

     

       75
       75
       +
         {6740, [82, 236, 356, 10]},

     

       76
       76
       +
         {983873830, [977, 6, 267, 606, 830]},

     

       77
       77
       +
         {101904, [5, 71, 29, 2, 264]},

     

       78
       78
       +
         {8536122, [5, 3, 7, 388, 120]},

     

       79
       79
       +
         {818217, [8, 27, 21, 484, 92, 5, 214]},

     

       80
       80
       +
         {9221, [219, 23, 270, 18, 5]},

     

       81
       81
       +
         {216699547, [2, 24, 46, 9, 1, 55, 6, 61, 9, 88]},

     

       82
       82
       +
         {19040, [434, 4, 5, 2, 41, 713, 28, 54]},

     

       83
       83
       +
         {113740483608, [52, 951, 38, 417, 23, 17]},

     

       84
       84
       +
         {1837300, [627, 46, 5, 1, 91, 6, 6, 4]},

     

       85
       85
       +
         {21564, [6, 143, 330, 9, 5, 9]},

     

       86
       86
       +
         {100992468, [4, 4, 2, 9, 7, 69, 3, 24, 92, 8, 6, 8]},

     

       87
       87
       +
         {522672, [5, 226, 7, 5]},

     

       88
       88
       +
         {72660535, [181, 857, 70, 5, 2, 4, 1, 11]},

     

       89
       89
       +
         {1553455, [57, 842, 4, 650, 374, 79]},

     

       90
       90
       +
         {177565304, [177, 5, 6, 530, 7]},

     

       91
       91
       +
         {123464883, [65, 67, 315, 7, 2, 45]},

     

       92
       92
       +
         {162378, [47, 799, 75, 702, 74, 3]},

     

       93
       93
       +
         {75882558, [4, 4, 9, 3, 8, 7, 5, 29, 5, 4, 57, 5]},

     

       94
       94
       +
         {15486, [5, 771, 6, 1, 2, 2, 8, 8, 8, 8, 2, 4]},

     

       95
       95
       +
         {195018949, [237, 9, 76, 61, 19, 95, 4, 9, 9]},

     

       96
       96
       +
         {120067914, [12, 7, 1, 282, 9, 17, 7, 2, 7, 79]},

     

       97
       97
       +
         {10625355, [6, 16, 906, 3, 533]},

     

       98
       98
       +
         {714034, [2, 3, 60, 7, 7, 90, 325, 9]},

     

       99
       99
       +
         {147283595568, [3, 311, 33, 3, 57, 822, 8, 93]},

     

       100
       100
       +
         {2316922, [8, 26, 41, 831, 2, 94]},

     

       101
       101
       +
         {182954295, [438, 22, 56, 5, 993, 4]},

     

       102
       102
       +
         {17143497694679, [73, 169, 33, 1, 4, 71, 6, 79]},

     

       103
       103
       +
         {758512003463, [3, 2, 790, 700, 4, 2, 2, 34, 63]},

     

       104
       104
       +
         {4146569285, [280, 8, 9, 5, 6, 7, 68, 4, 9, ...]},

     

       105
       105
       +
         {31770235539495, [589, 8, 9, 1, 1, 95, 3, 63, ...]},

     

       106
       106
       +
         {2140548, [7, 6, 1, 4, 3, 4, 8, ...]},

     

       107
       107
       +
         {12113461, [291, 3, 50, 772, 17, 5, ...]},

     

       108
       108
       +
         {9197820380208, [1, 58, 583, 110, 58, ...]},

     

       109
       109
       +
         {1539915, [88, 340, 19, 5, ...]},

     

       110
       110
       +
         {198635345304, [19, 711, 980, ...]},

     

       111
       111
       +
         {43172, [426, 8, ...]},

     

       112
       112
       +
         {53202, [5, ...]},

     

       113
       113
       +
         {999074, [...]},

     

       114
       114
       +
         {107010, ...},

     

       115
       115
       +
         {...},

     

       116
       116
       +
         ...

     

       117
       117
       +
       ]

     

       118
       118
       +
       ```

     

       119
       119
       +
       

     

       120
       120
       +
       ## Part 1

     

       121
       121
       +
       

     

       122
       122
       +
       ```elixir

     

       123
       123
       +
       defmodule Eq.P1 do

     

       124
       124
       +
         def possible?(0, []), do: true

     

       125
       125
       +
         def possible?(a, [a]), do: true

     

       126
       126
       +
         def possible?(0, [_ | _]), do: false

     

       127
       127
       +
         def possible?(_, []), do: false

     

       128
       128
       +
         def possible?(a, _) when a < 0, do: false

     

       129
       129
       +
       

     

       130
       130
       +
         def possible?(a, [b | rest]) when rem(a, b) == 0 do

     

       131
       131
       +
           possible?(div(a, b), rest) or possible?(a - b, rest)

     

       132
       132
       +
         end

     

       133
       133
       +
       

     

       134
       134
       +
         def possible?(a, [b | rest]), do: possible?(a - b, rest)

     

       135
       135
       +
       end

     

       136
       136
       +
       ```

     

       137
       137
       +
       

     

       138
       138
       +
       <!-- livebook:{"output":true} -->

     

       139
       139
       +
       

     

       140
       140
       +
       ```

     

       141
       141
       +
       {:module, Eq.P1, <<70, 79, 82, 49, 0, 0, 8, ...>>, {:possible?, 2}}

     

       142
       142
       +
       ```

     

       143
       143
       +
       

     

       144
       144
       +
       ```elixir

     

       145
       145
       +
       equations

     

       146
       146
       +
       |> Enum.filter(fn {target, vals} ->

     

       147
       147
       +
         Eq.P1.possible?(target, Enum.reverse(vals))

     

       148
       148
       +
       end)

     

       149
       149
       +
       |> Enum.reduce(0, &(elem(&1, 0) + &2))

     

       150
       150
       +
       ```

     

       151
       151
       +
       

     

       152
       152
       +
       <!-- livebook:{"output":true} -->

     

       153
       153
       +
       

     

       154
       154
       +
       ```

     

       155
       155
       +
       3119088655389

     

       156
       156
       +
       ```

     

       157
       157
       +
       

     

       158
       158
       +
       ## Part 2

     

       159
       159
       +
       

     

       160
       160
       +
       ```elixir

     

       161
       161
       +
       defmodule Eq.P2 do

     

       162
       162
       +
         def possible?(a, [hd | rest]), do: possible?(a, hd, rest)

     

       163
       163
       +
       

     

       164
       164
       +
         defp possible?(a, a, []), do: true

     

       165
       165
       +
         defp possible?(_, _, []), do: false

     

       166
       166
       +
         defp possible?(a, b, _) when b > a, do: false

     

       167
       167
       +
       

     

       168
       168
       +
         defp possible?(target, curr, [a | rest]) do

     

       169
       169
       +
           possible?(target, concat(curr, a), rest) or

     

       170
       170
       +
             possible?(target, curr * a, rest) or

     

       171
       171
       +
             possible?(target, curr + a, rest)

     

       172
       172
       +
         end

     

       173
       173
       +
       

     

       174
       174
       +
         defp concat(a, b), do: a * l10(b) + b

     

       175
       175
       +
       

     

       176
       176
       +
         defp l10(n) when n >= 100, do: 1000

     

       177
       177
       +
         defp l10(n) when n >= 10, do: 100

     

       178
       178
       +
         defp l10(_), do: 10

     

       179
       179
       +
       end

     

       180
       180
       +
       ```

     

       181
       181
       +
       

     

       182
       182
       +
       <!-- livebook:{"output":true} -->

     

       183
       183
       +
       

     

       184
       184
       +
       ```

     

       185
       185
       +
       {:module, Eq.P2, <<70, 79, 82, 49, 0, 0, 9, ...>>, {:l10, 1}}

     

       186
       186
       +
       ```

     

       187
       187
       +
       

     

       188
       188
       +
       ```elixir

     

       189
       189
       +
       equations

     

       190
       190
       +
       |> Task.async_stream(

     

       191
       191
       +
         fn {target, vals} ->

     

       192
       192
       +
           if Eq.P2.possible?(target, vals), do: target, else: 0

     

       193
       193
       +
         end,

     

       194
       194
       +
         ordered: false

     

       195
       195
       +
       )

     

       196
       196
       +
       |> Enum.reduce(0, fn {:ok, val}, acc -> val + acc end)

     

       197
       197
       +
       ```

     

       198
       198
       +
       

     

       199
       199
       +
       <!-- livebook:{"output":true} -->

     

       200
       200
       +
       

     

       201
       201
       +
       ```

     

       202
       202
       +
       264184041398847

     

       203
       203
       +
       ```

     

       204
       204
       +
       

     

       205
       205
       +
       <!-- livebook:{"offset":9317,"stamp":{"token":"XCP.DCDL30p1jz3L9vRDdQ5EJLc3r7y1DTsVhQ3GXFK_huvoEXqgYu2TTOfTq8AFYpt5W6fEIo4MvfrnHttbqS-z4SjRkT7WM09v09mZ_FeyqstWzLMCK_oNqhrrdwPPv5BG_8c","version":2}} -->

+327

2024/day08.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 08

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI4Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "8", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "..........M..........j.............y.....O........\n...B...............q......m........lGO............\n....................q......2.l.GQ...O.............\n.....X.......................................4....\n.....................q............................\n....M......P...............xl.K.............2.....\n....F.........L.......C.K..............m..........\n..........FM......P....jy......m..........o...r...\n..X.......P.....RL..............G..x..........4...\n............L..........NC.....q...................\n.....C.X...............K....y..........4..........\n........S...R.............j.x.....V...4...........\n.....................R..x.....V..i......m.........\n...........................R.V......N.......X.....\n.....F.........M......N......E....................\n................v................T.......F......O.\n.............................N...V.......Q........\n...v.....................C.....i..................\n......c.....W..n.w........................E.......\n3...................c.....................Q..6....\n...........h......................j...............\n.......n.0......h.................E..............2\n.v.............7.......120.....c..................\n......n.0............w...........D.t.........E...r\n....8..3......0.w.hP....z...D..T...............r..\n.................f........T........G......eQ......\n......f.n.....7..p................................\n.....Y..7.......f......I......D......K............\n............Uf....T..W.....D..r...i...............\n......I...............................Z...........\n....5....B.......b..............s..............Z..\n..........d...W..Uwh.............c..........i.....\n..I.3..Y......................e...................\n.....p.b..........k......7........................\np...........k....I..b..........s..................\n.....k.......o...........W........................\n.A..Y..........U.................a........6.......\n..A...Y.p...................................6.....\nB......k..........................Z............u..\n...3.....................s..............a.........\n......A.........................g.....a...........\n.......A....8...b.U......H....sS..................\n.........................S1.............t.........\n.....................9z..e.....5..1.g.u...........\n.......................z....d....g....H.J....o.6..\n........B................d.....u....9.J.H.........\n.8........S.................u9.............J.....H\n.....................Z5.............t1...........a\n.....................e..v...................o..t..\n.....8...............L.....z.............J........"}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       # puzzle_input =

     

       27
       27
       +
       """

     

       28
       28
       +
       ............

     

       29
       29
       +
       ........0...

     

       30
       30
       +
       .....0......

     

       31
       31
       +
       .......0....

     

       32
       32
       +
       ....0.......

     

       33
       33
       +
       ......A.....

     

       34
       34
       +
       ............

     

       35
       35
       +
       ............

     

       36
       36
       +
       ........A...

     

       37
       37
       +
       .........A..

     

       38
       38
       +
       ............

     

       39
       39
       +
       ............

     

       40
       40
       +
       """

     

       41
       41
       +
       

     

       42
       42
       +
       freqs =

     

       43
       43
       +
         puzzle_input

     

       44
       44
       +
         |> String.split("\n", trim: true)

     

       45
       45
       +
         |> Enum.with_index()

     

       46
       46
       +
         |> Enum.flat_map(fn {row, y} ->

     

       47
       47
       +
           row

     

       48
       48
       +
           |> String.to_charlist()

     

       49
       49
       +
           |> Enum.with_index()

     

       50
       50
       +
           |> Enum.filter(fn {freq, _} -> freq != ?. end)

     

       51
       51
       +
           |> Enum.map(fn {freq, x} -> {{x, y}, freq} end)

     

       52
       52
       +
         end)

     

       53
       53
       +
         |> Map.new()

     

       54
       54
       +
         |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

       55
       55
       +
       ```

     

       56
       56
       +
       

     

       57
       57
       +
       <!-- livebook:{"output":true} -->

     

       58
       58
       +
       

     

       59
       59
       +
       ```

     

       60
       60
       +
       warning: code block contains unused literal "............\n........0...\n.....0......\n.......0....\n....0.......\n......A.....\n............\n............\n........A...\n.........A..\n............\n............\n" (remove the literal or assign it to _ to avoid warnings)

     

       61
       61
       +
       └─ Workspace/hauleth/advent-of-code/2024/day08.livemd#cell:y5uv5vxll4fey6gh:1

     

       62
       62
       +
       

     

       63
       63
       +
       ```

     

       64
       64
       +
       

     

       65
       65
       +
       <!-- livebook:{"output":true} -->

     

       66
       66
       +
       

     

       67
       67
       +
       ```

     

       68
       68
       +
       %{

     

       69
       69
       +
         117 => [{28, 46}, {31, 45}, {38, 43}, {47, 38}],

     

       70
       70
       +
         73 => [{2, 32}, {17, 34}, {23, 27}, {6, 29}],

     

       71
       71
       +
         89 => [{4, 36}, {7, 32}, {6, 37}, {5, 27}],

     

       72
       72
       +
         48 => [{25, 22}, {9, 21}, {8, 23}, {14, 24}],

     

       73
       73
       +
         57 => [{29, 46}, {21, 43}, {36, 45}],

     

       74
       74
       +
         113 => [{30, 9}, {20, 2}, {21, 4}, {19, 1}],

     

       75
       75
       +
         69 => [{42, 18}, {34, 21}, {45, 23}, {29, 14}],

     

       76
       76
       +
         88 => [{7, 10}, {5, 3}, {44, 13}, {2, 8}],

     

       77
       77
       +
         100 => [{25, 45}, {28, 44}, {10, 31}],

     

       78
       78
       +
         71 => [{36, 1}, {35, 25}, {31, 2}, {32, 8}],

     

       79
       79
       +
         98 => [{16, 41}, {7, 33}, {20, 34}, {17, 30}],

     

       80
       80
       +
         81 => [{42, 19}, {41, 16}, {43, 25}, {32, 2}],

     

       81
       81
       +
         76 => [{12, 9}, {14, 6}, {17, 8}, {21, 49}],

     

       82
       82
       +
         85 => [{15, 36}, {12, 28}, {17, 31}, {18, 41}],

     

       83
       83
       +
         120 => [{27, 5}, {35, 8}, {28, 11}, {24, 12}],

     

       84
       84
       +
         109 => [{26, 1}, {39, 6}, {40, 12}, {31, 7}],

     

       85
       85
       +
         72 => [{38, 44}, {40, 45}, {49, 46}, {25, 41}],

     

       86
       86
       +
         110 => [{8, 26}, {7, 21}, {15, 18}, {6, 23}],

     

       87
       87
       +
         68 => [{30, 27}, {28, 24}, {27, 28}, {33, 23}],

     

       88
       88
       +
         86 => [{29, 13}, {33, 16}, {30, 12}, {34, 11}],

     

       89
       89
       +
         116 => [{35, 23}, {36, 47}, {47, 48}, {40, 42}],

     

       90
       90
       +
         51 => [{7, 24}, {0, 19}, {3, 39}, {4, 32}],

     

       91
       91
       +
         80 => [{18, 7}, {19, 24}, {10, 8}, {11, 5}],

     

       92
       92
       +
         77 => [{11, 7}, {15, 14}, {10, 0}, {4, 5}],

     

       93
       93
       +
         78 => [{22, 14}, {29, 16}, {36, 13}, {23, 9}],

     

       94
       94
       +
         108 => [{29, 2}, {28, 5}, {35, 1}],

     

       95
       95
       +
         103 => [{32, 40}, {36, 43}, {33, 44}],

     

       96
       96
       +
         122 => [{27, 49}, {23, 44}, {24, 24}, {22, 43}],

     

       97
       97
       +
         83 => [{10, 46}, {25, 42}, {31, 41}, {8, 11}],

     

       98
       98
       +
         74 => [{38, 45}, {41, 49}, {43, 46}, {40, 44}],

     

       99
       99
       +
         99 => [{31, 22}, {33, 31}, {20, 19}, {6, 18}],

     

       100
       100
       +
         112 => [{5, 33}, {17, 26}, {8, 37}, {0, 34}],

     

       101
       101
       +
         97 => [{38, 40}, {33, 36}, {49, 47}, {40, 39}],

     

       102
       102
       +
         104 => [{16, 21}, {19, 31}, {11, 20}, {18, 24}],

     

       103
       103
       +
         75 => [{30, 5}, {24, 6}, {23, 10}, {37, 27}],

     

       104
       104
       +
         90 => [{21, 47}, {47, 30}, {34, 38}, {38, 29}],

     

       105
       105
       +
         55 => [{15, 22}, {14, 26}, {8, 27}, {25, 33}],

     

       106
       106
       +
         52 => [{45, 3}, {38, 11}, {39, 10}, {46, 8}],

     

       107
       107
       +
         111 => [{13, 35}, {42, 7}, {45, 44}, {44, 48}],

     

       108
       108
       +
         87 => [{25, 35}, {12, 18}, {14, 31}, {21, 28}],

     

       109
       109
       +
         119 => [{21, 23}, {18, 31}, {17, 18}, {16, 24}],

     

       110
       110
       +
         82 => [{12, 11}, {27, 13}, {21, 12}, {16, 8}],

     

       111
       111
       +
         53 => [{22, 47}, {31, 43}, {4, 30}],

     

       112
       112
       +
         50 => [{27, 2}, {24, 22}, {44, 5}, {49, 21}],

     

       113
       113
       +
         66 => [{8, 45}, {9, 30}, {3, 1}, {0, ...}],

     

       114
       114
       +
         70 => [{5, 14}, {41, 15}, {10, ...}, {...}],

     

       115
       115
       +
         56 => [{12, 41}, {4, ...}, {...}, ...],

     

       116
       116
       +
         102 => [{17, ...}, {...}, ...],

     

       117
       117
       +
         105 => [{...}, ...],

     

       118
       118
       +
         121 => [...],

     

       119
       119
       +
         ...

     

       120
       120
       +
       }

     

       121
       121
       +
       ```

     

       122
       122
       +
       

     

       123
       123
       +
       ```elixir

     

       124
       124
       +
       {w, h} =

     

       125
       125
       +
         puzzle_input

     

       126
       126
       +
         |> String.split("\n", trim: true)

     

       127
       127
       +
         |> then(fn [a | _] = lst ->

     

       128
       128
       +
           {byte_size(a), length(lst)}

     

       129
       129
       +
         end)

     

       130
       130
       +
       ```

     

       131
       131
       +
       

     

       132
       132
       +
       <!-- livebook:{"output":true} -->

     

       133
       133
       +
       

     

       134
       134
       +
       ```

     

       135
       135
       +
       {50, 50}

     

       136
       136
       +
       ```

     

       137
       137
       +
       

     

       138
       138
       +
       ```elixir

     

       139
       139
       +
       defmodule Antennas do

     

       140
       140
       +
         def each_pair([]), do: []

     

       141
       141
       +
         def each_pair([a | rest]) do

     

       142
       142
       +
           for(b <- rest, do: {a, b}) ++ each_pair(rest)

     

       143
       143
       +
         end

     

       144
       144
       +
       

     

       145
       145
       +
         def antinodes({xa, ya}, {xb, yb}) do

     

       146
       146
       +
           dx = xa - xb

     

       147
       147
       +
           dy = ya - yb

     

       148
       148
       +
       

     

       149
       149
       +
           Stream.from_index()

     

       150
       150
       +
           |> Stream.flat_map(fn n ->

     

       151
       151
       +
             dx = dx * n

     

       152
       152
       +
             dy = dy * n

     

       153
       153
       +
             [{xa + dx, ya + dy}, {xb - dx, yb - dy}]

     

       154
       154
       +
           end)

     

       155
       155
       +
         end

     

       156
       156
       +
       end

     

       157
       157
       +
       ```

     

       158
       158
       +
       

     

       159
       159
       +
       <!-- livebook:{"output":true} -->

     

       160
       160
       +
       

     

       161
       161
       +
       ```

     

       162
       162
       +
       {:module, Antennas, <<70, 79, 82, 49, 0, 0, 10, ...>>, {:antinodes, 2}}

     

       163
       163
       +
       ```

     

       164
       164
       +
       

     

       165
       165
       +
       ## Part 1

     

       166
       166
       +
       

     

       167
       167
       +
       ```elixir

     

       168
       168
       +
       antinodes =

     

       169
       169
       +
         for {_, antennas} <- freqs,

     

       170
       170
       +
             {a, b} <- Antennas.each_pair(antennas),

     

       171
       171
       +
             {x, y} = node <- Antennas.antinodes(a, b) |> Stream.drop(2) |> Enum.take(2),

     

       172
       172
       +
             x in 0..(w - 1) and y in 0..(h - 1),

     

       173
       173
       +
             into: MapSet.new() do

     

       174
       174
       +
           node

     

       175
       175
       +
         end

     

       176
       176
       +
       ```

     

       177
       177
       +
       

     

       178
       178
       +
       <!-- livebook:{"output":true} -->

     

       179
       179
       +
       

     

       180
       180
       +
       ```

     

       181
       181
       +
       MapSet.new([

     

       182
       182
       +
         {20, 41},

     

       183
       183
       +
         {20, 3},

     

       184
       184
       +
         {16, 10},

     

       185
       185
       +
         {26, 21},

     

       186
       186
       +
         {6, 18},

     

       187
       187
       +
         {10, 32},

     

       188
       188
       +
         {20, 30},

     

       189
       189
       +
         {33, 17},

     

       190
       190
       +
         {17, 30},

     

       191
       191
       +
         {29, 28},

     

       192
       192
       +
         {40, 35},

     

       193
       193
       +
         {28, 37},

     

       194
       194
       +
         {25, 49},

     

       195
       195
       +
         {10, 19},

     

       196
       196
       +
         {14, 17},

     

       197
       197
       +
         {35, 7},

     

       198
       198
       +
         {29, 48},

     

       199
       199
       +
         {1, 34},

     

       200
       200
       +
         {23, 8},

     

       201
       201
       +
         {35, 6},

     

       202
       202
       +
         {49, 17},

     

       203
       203
       +
         {46, 38},

     

       204
       204
       +
         {5, 39},

     

       205
       205
       +
         {37, 29},

     

       206
       206
       +
         {16, 15},

     

       207
       207
       +
         {48, 41},

     

       208
       208
       +
         {4, 18},

     

       209
       209
       +
         {24, 15},

     

       210
       210
       +
         {33, 44},

     

       211
       211
       +
         {39, 18},

     

       212
       212
       +
         {40, 25},

     

       213
       213
       +
         {35, 21},

     

       214
       214
       +
         {41, 17},

     

       215
       215
       +
         {20, 37},

     

       216
       216
       +
         {45, 24},

     

       217
       217
       +
         {0, 35},

     

       218
       218
       +
         {18, 3},

     

       219
       219
       +
         {1, 36},

     

       220
       220
       +
         {35, 41},

     

       221
       221
       +
         {37, 28},

     

       222
       222
       +
         {28, 15},

     

       223
       223
       +
         {29, 38},

     

       224
       224
       +
         {46, 43},

     

       225
       225
       +
         {31, 19},

     

       226
       226
       +
         {19, 39},

     

       227
       227
       +
         {43, 10},

     

       228
       228
       +
         {38, 10},

     

       229
       229
       +
         {21, 26},

     

       230
       230
       +
         {28, ...},

     

       231
       231
       +
         {...},

     

       232
       232
       +
         ...

     

       233
       233
       +
       ])

     

       234
       234
       +
       ```

     

       235
       235
       +
       

     

       236
       236
       +
       ```elixir

     

       237
       237
       +
       MapSet.size(antinodes)

     

       238
       238
       +
       ```

     

       239
       239
       +
       

     

       240
       240
       +
       <!-- livebook:{"output":true} -->

     

       241
       241
       +
       

     

       242
       242
       +
       ```

     

       243
       243
       +
       398

     

       244
       244
       +
       ```

     

       245
       245
       +
       

     

       246
       246
       +
       ## Part 2

     

       247
       247
       +
       

     

       248
       248
       +
       ```elixir

     

       249
       249
       +
       antinodes_res =

     

       250
       250
       +
         for {_, antennas} <- freqs,

     

       251
       251
       +
             {a, b} <- Antennas.each_pair(antennas),

     

       252
       252
       +
             {x, y} = node <- Enum.take(Antennas.antinodes(a, b), 100),

     

       253
       253
       +
             x in 0..(w - 1) and y in 0..(h - 1),

     

       254
       254
       +
             into: MapSet.new() do

     

       255
       255
       +
           node

     

       256
       256
       +
         end

     

       257
       257
       +
       ```

     

       258
       258
       +
       

     

       259
       259
       +
       <!-- livebook:{"output":true} -->

     

       260
       260
       +
       

     

       261
       261
       +
       ```

     

       262
       262
       +
       MapSet.new([

     

       263
       263
       +
         {37, 47},

     

       264
       264
       +
         {35, 30},

     

       265
       265
       +
         {4, 5},

     

       266
       266
       +
         {20, 41},

     

       267
       267
       +
         {31, 42},

     

       268
       268
       +
         {9, 34},

     

       269
       269
       +
         {47, 38},

     

       270
       270
       +
         {20, 3},

     

       271
       271
       +
         {47, 44},

     

       272
       272
       +
         {22, 36},

     

       273
       273
       +
         {45, 7},

     

       274
       274
       +
         {19, 38},

     

       275
       275
       +
         {27, 21},

     

       276
       276
       +
         {9, 33},

     

       277
       277
       +
         {16, 10},

     

       278
       278
       +
         {21, 45},

     

       279
       279
       +
         {26, 21},

     

       280
       280
       +
         {21, 48},

     

       281
       281
       +
         {16, 38},

     

       282
       282
       +
         {35, 26},

     

       283
       283
       +
         {28, 20},

     

       284
       284
       +
         {45, 19},

     

       285
       285
       +
         {27, 22},

     

       286
       286
       +
         {16, 24},

     

       287
       287
       +
         {6, 18},

     

       288
       288
       +
         {10, 32},

     

       289
       289
       +
         {33, 15},

     

       290
       290
       +
         {36, 14},

     

       291
       291
       +
         {20, 30},

     

       292
       292
       +
         {33, 17},

     

       293
       293
       +
         {41, 1},

     

       294
       294
       +
         {36, 25},

     

       295
       295
       +
         {28, 48},

     

       296
       296
       +
         {5, 9},

     

       297
       297
       +
         {14, 16},

     

       298
       298
       +
         {17, 30},

     

       299
       299
       +
         {30, 49},

     

       300
       300
       +
         {32, 18},

     

       301
       301
       +
         {29, 28},

     

       302
       302
       +
         {40, 35},

     

       303
       303
       +
         {6, 23},

     

       304
       304
       +
         {17, 39},

     

       305
       305
       +
         {28, 37},

     

       306
       306
       +
         {6, 29},

     

       307
       307
       +
         {39, 23},

     

       308
       308
       +
         {49, 16},

     

       309
       309
       +
         {34, 0},

     

       310
       310
       +
         {11, 37},

     

       311
       311
       +
         {25, ...},

     

       312
       312
       +
         {...},

     

       313
       313
       +
         ...

     

       314
       314
       +
       ])

     

       315
       315
       +
       ```

     

       316
       316
       +
       

     

       317
       317
       +
       ```elixir

     

       318
       318
       +
       MapSet.size(antinodes_res)

     

       319
       319
       +
       ```

     

       320
       320
       +
       

     

       321
       321
       +
       <!-- livebook:{"output":true} -->

     

       322
       322
       +
       

     

       323
       323
       +
       ```

     

       324
       324
       +
       1333

     

       325
       325
       +
       ```

     

       326
       326
       +
       

     

       327
       327
       +
       <!-- livebook:{"offset":9159,"stamp":{"token":"XCP.vUy-wiQ1Ola4DEyyjRWCHAhmtmjmoDVd4jyZ0g5rhe0RM8-OKii82hOqtdVQ6B_yetZ17Z8avgol_Frq-whc91b45zMSMIRVIC-azF_IQmYLdHX0p3LEQ0xKLcBUuir19OQ","version":2}} -->

+243

2024/day09.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 09

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI5Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "9", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "6920945132536042828994482345396169724991532616269072173941615129441070989533549353544192338215647480107561245832285861135469128938656230362333818111433746344751894125805448321674418337459440436476402523264257512621383849394968854739721644705231266361534476141022646838663844981685665728936624151235476791584929822482292987334479824016888196957024425673938289753698621244157130975989396226731549454298144391686468562820376390235135108330238590316674261440783039581594584646247629719986582560203598244312596985279832984526808559405915881067383593502384107494586724976925694948216635952475703445963854271259175649271576378184603074946598276445248640841860479933368524996925945274749282264063148922416399632485376097486952663787643633316356949469798134153950341455917737349115548390535536536397237654519556679716185652595572754749672866345553911576628161614338861880658781637382837898686889463249126116447176285128303560134154431099612772162289797131303641655015516771696046959228585241299646581370538088916416989047515564526116366867367181678616439431284930379889626059473847818663132232979123503952455854489755245141781899866948543116887346827534697893607177987563154596774691267167851154138330695352108499217988406372425774968626985943665687196181233111972699532427257992757984672882888037943925818450345177398760216079692074854569485530377584183586279552981343712063437565138087959796501957177177884278405560475435141829787014884681355059571489723985901554488154898784759668954752934048679146776060562786272011429026535298115262548593878183498916571398351436431313482968486771572527901996664899792152552410493090499727835643526428881322227999149881884793853729989624533029587010105028429614225841889414576176753414877452414680577843459538128911939238704598815126186492327558383740971333501769852667796188543180462490517062819496532859194781303437743159526136553370517461484469733677187178992265612439155938358015666261906673153823768535183244601645561579916316476813124539675061263411515873626197742860301068615568696174716481151333516718804424987323957615961444822618946925923196806747458558553262735686467327309580525855605085698452928593956820699112556481136173708346321771719645737818963669665547522134505223646796667286359173528172301211931188731691358636677670346032949579894428251583802532214067603254278658698940647270167640764638397570409829821264846762426836572463386475815673329747876757249732659277388030843590439617143487927833367461978526979212861844382550791390358527895937281110537852835869713059958217969899704145215985377666628719451233132412294358444746793946343553683032671225858498134340537229859741987180829468238642605723478228646886791227546199853372232566387139711011753555879744151132642224546223435667375781861424845134566438891443785750344893853718679532879854483395621276216275644617996376282773738211864275304297979547422875934634992111232368475557713129934172577624852042405732858060209959806520925730394293739081861693532946112557827992852621975727432957291082907728921029905725787812513023871891551681262814572424452648875694586632916946898788794936727799526748807158546930659285568029733948646265541485187570661411984840326374573377475525442055851882711851241546246736884066686885724058588220382743451817154627144869212944944985727560911326298754699513901913775411631051155448259136813383243697125190592983671813131786588158152523929049549018258627964330945831994544156999373027523966329015316477207024639470312244244043635392684240435826402148884612989874566739774998162494686244143442812672951249922585423333957811202767768597518787769627151336335561386093158376767595684951873065594471827052965041948820794865486179401375326111497235854418829486872664452298163169179763609277741983868518845423468770227926607088302941698125295594475259881783566721809397453893791727816025381929613950311537338366491240658016437269618697401059446097141870959520762921795565136242743648578086232855147488427619213536145259919693337741268680894834764319547389247696113145205712656834305853252319218569748862345539664553175240528621328137233671331496239591159242157540311894387168" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       #puzzle_input = "2333133121414131402"

     

       27
       27
       +
       

     

       28
       28
       +
       tags =

     

       29
       29
       +
         Stream.from_index()

     

       30
       30
       +
         |> Stream.intersperse(:gap)

     

       31
       31
       +
       

     

       32
       32
       +
       files =

     

       33
       33
       +
         puzzle_input

     

       34
       34
       +
         |> String.split("", trim: true)

     

       35
       35
       +
         |> Enum.map(&String.to_integer/1)

     

       36
       36
       +
         |> Enum.zip(tags)

     

       37
       37
       +
       ```

     

       38
       38
       +
       

     

       39
       39
       +
       <!-- livebook:{"output":true} -->

     

       40
       40
       +
       

     

       41
       41
       +
       ```

     

       42
       42
       +
       [

     

       43
       43
       +
         {6, 0},

     

       44
       44
       +
         {9, :gap},

     

       45
       45
       +
         {2, 1},

     

       46
       46
       +
         {0, :gap},

     

       47
       47
       +
         {9, 2},

     

       48
       48
       +
         {4, :gap},

     

       49
       49
       +
         {5, 3},

     

       50
       50
       +
         {1, :gap},

     

       51
       51
       +
         {3, 4},

     

       52
       52
       +
         {2, :gap},

     

       53
       53
       +
         {5, 5},

     

       54
       54
       +
         {3, :gap},

     

       55
       55
       +
         {6, 6},

     

       56
       56
       +
         {0, :gap},

     

       57
       57
       +
         {4, 7},

     

       58
       58
       +
         {2, :gap},

     

       59
       59
       +
         {8, 8},

     

       60
       60
       +
         {2, :gap},

     

       61
       61
       +
         {8, 9},

     

       62
       62
       +
         {9, :gap},

     

       63
       63
       +
         {9, 10},

     

       64
       64
       +
         {4, :gap},

     

       65
       65
       +
         {4, 11},

     

       66
       66
       +
         {8, :gap},

     

       67
       67
       +
         {2, 12},

     

       68
       68
       +
         {3, :gap},

     

       69
       69
       +
         {4, 13},

     

       70
       70
       +
         {5, :gap},

     

       71
       71
       +
         {3, 14},

     

       72
       72
       +
         {9, :gap},

     

       73
       73
       +
         {6, 15},

     

       74
       74
       +
         {1, :gap},

     

       75
       75
       +
         {6, 16},

     

       76
       76
       +
         {9, :gap},

     

       77
       77
       +
         {7, 17},

     

       78
       78
       +
         {2, :gap},

     

       79
       79
       +
         {4, 18},

     

       80
       80
       +
         {9, :gap},

     

       81
       81
       +
         {9, 19},

     

       82
       82
       +
         {1, :gap},

     

       83
       83
       +
         {5, 20},

     

       84
       84
       +
         {3, :gap},

     

       85
       85
       +
         {2, 21},

     

       86
       86
       +
         {6, :gap},

     

       87
       87
       +
         {1, 22},

     

       88
       88
       +
         {6, :gap},

     

       89
       89
       +
         {2, 23},

     

       90
       90
       +
         {6, :gap},

     

       91
       91
       +
         {9, ...},

     

       92
       92
       +
         {...},

     

       93
       93
       +
         ...

     

       94
       94
       +
       ]

     

       95
       95
       +
       ```

     

       96
       96
       +
       

     

       97
       97
       +
       ```elixir

     

       98
       98
       +
       defmodule Disk do

     

       99
       99
       +
         def checksum(files) do

     

       100
       100
       +
           files

     

       101
       101
       +
           |> Enum.reduce({0, 0}, fn

     

       102
       102
       +
             {gap, :gap}, {pos, sum} ->

     

       103
       103
       +
               {pos + gap, sum}

     

       104
       104
       +
       

     

       105
       105
       +
             {len, idx}, {pos, sum} ->

     

       106
       106
       +
               new_pos = pos + len

     

       107
       107
       +
               score = Enum.sum(pos..(new_pos - 1)) * idx

     

       108
       108
       +
       

     

       109
       109
       +
               {new_pos, score + sum}

     

       110
       110
       +
           end)

     

       111
       111
       +
           |> elem(1)

     

       112
       112
       +
         end

     

       113
       113
       +
       

     

       114
       114
       +
         def display(lst) do

     

       115
       115
       +
           Enum.map(lst, fn

     

       116
       116
       +
             {len, val} ->

     

       117
       117
       +
               sym = if val == :gap, do: ".", else: to_string(val)

     

       118
       118
       +
               

     

       119
       119
       +
               List.duplicate(sym, len)

     

       120
       120
       +
           end)

     

       121
       121
       +
           |> IO.iodata_to_binary()

     

       122
       122
       +
         end

     

       123
       123
       +
       end

     

       124
       124
       +
       ```

     

       125
       125
       +
       

     

       126
       126
       +
       <!-- livebook:{"output":true} -->

     

       127
       127
       +
       

     

       128
       128
       +
       ```

     

       129
       129
       +
       {:module, Disk, <<70, 79, 82, 49, 0, 0, 11, ...>>, {:display, 1}}

     

       130
       130
       +
       ```

     

       131
       131
       +
       

     

       132
       132
       +
       ## Part 1

     

       133
       133
       +
       

     

       134
       134
       +
       ```elixir

     

       135
       135
       +
       defmodule Compactor do

     

       136
       136
       +
         def run(files) do

     

       137
       137
       +
           occupied =

     

       138
       138
       +
             Enum.reduce(files, 0, fn

     

       139
       139
       +
               {_, :gap}, acc -> acc

     

       140
       140
       +
               {len, _idx}, acc -> acc + len

     

       141
       141
       +
             end)

     

       142
       142
       +
       

     

       143
       143
       +
           compact([], occupied, files, Enum.reverse(files))

     

       144
       144
       +
         end

     

       145
       145
       +
       

     

       146
       146
       +
         defp compact(acc, 0, _, _), do: Enum.reverse(acc)

     

       147
       147
       +
       

     

       148
       148
       +
         defp compact(acc, left, [{0, :gap} | rest], rfiles),

     

       149
       149
       +
           do: compact(acc, left, rest, rfiles)

     

       150
       150
       +
       

     

       151
       151
       +
         defp compact(acc, left, rest, [{_, :gap} | rfiles]),

     

       152
       152
       +
           do: compact(acc, left, rest, rfiles)

     

       153
       153
       +
       

     

       154
       154
       +
         defp compact(acc, left, rest, [{0, _idx} | rfiles]) do

     

       155
       155
       +
           compact(acc, left, rest, rfiles)

     

       156
       156
       +
         end

     

       157
       157
       +
       

     

       158
       158
       +
         defp compact(acc, left, [{gap, :gap} | rest], [{len, idx} | rfiles]) do

     

       159
       159
       +
           fill = min(gap, len)

     

       160
       160
       +
       

     

       161
       161
       +
           compact([{fill, idx} | acc], left - fill, [{gap - fill, :gap} | rest], [

     

       162
       162
       +
             {len - fill, idx} | rfiles

     

       163
       163
       +
           ])

     

       164
       164
       +
         end

     

       165
       165
       +
         

     

       166
       166
       +
         defp compact(acc, left, [{len, idx} = file | rest], rfiles) when is_integer(idx) do

     

       167
       167
       +
           compact([file | acc], left - len, rest, rfiles)

     

       168
       168
       +
         end

     

       169
       169
       +
       end

     

       170
       170
       +
       ```

     

       171
       171
       +
       

     

       172
       172
       +
       <!-- livebook:{"output":true} -->

     

       173
       173
       +
       

     

       174
       174
       +
       ```

     

       175
       175
       +
       {:module, Compactor, <<70, 79, 82, 49, 0, 0, 11, ...>>, {:compact, 4}}

     

       176
       176
       +
       ```

     

       177
       177
       +
       

     

       178
       178
       +
       ```elixir

     

       179
       179
       +
       files

     

       180
       180
       +
       |> Compactor.run()

     

       181
       181
       +
       |> Disk.checksum()

     

       182
       182
       +
       ```

     

       183
       183
       +
       

     

       184
       184
       +
       <!-- livebook:{"output":true} -->

     

       185
       185
       +
       

     

       186
       186
       +
       ```

     

       187
       187
       +
       6332189866718

     

       188
       188
       +
       ```

     

       189
       189
       +
       

     

       190
       190
       +
       ## Part 2

     

       191
       191
       +
       

     

       192
       192
       +
       ```elixir

     

       193
       193
       +
       defmodule Defrag do

     

       194
       194
       +
         def run(files) do

     

       195
       195
       +
           files

     

       196
       196
       +
           |> Enum.reverse()

     

       197
       197
       +
           |> Enum.reduce(files, fn

     

       198
       198
       +
             {_, :gap}, acc -> acc

     

       199
       199
       +
             file, acc -> do_run(acc, file, [])

     

       200
       200
       +
           end)

     

       201
       201
       +
         end

     

       202
       202
       +
       

     

       203
       203
       +
         defp do_run([], _, acc), do: Enum.reverse(acc)

     

       204
       204
       +
       

     

       205
       205
       +
         defp do_run([file | _] = list, file, acc), do: Enum.reverse(acc, list)

     

       206
       206
       +
       

     

       207
       207
       +
         defp do_run([{len, :gap} | rest], {len, idx}, acc),

     

       208
       208
       +
           do: Enum.reverse(acc, [{len, idx} | rep(rest, {len, idx})])

     

       209
       209
       +
       

     

       210
       210
       +
         defp do_run([{gap, :gap} | rest], {len, idx}, acc) when len < gap,

     

       211
       211
       +
           do: Enum.reverse(acc, [{len, idx}, {gap - len, :gap} | rep(rest, {len, idx})])

     

       212
       212
       +
       

     

       213
       213
       +
         defp do_run([hd | rest], file, acc), do: do_run(rest, file, [hd | acc])

     

       214
       214
       +
       

     

       215
       215
       +
         defp rep([{a, :gap}, file, {b, :gap} | rest], {len, _} = file),

     

       216
       216
       +
           do: [{a + len + b, :gap} | rest]

     

       217
       217
       +
       

     

       218
       218
       +
         defp rep([{a, :gap}, file | rest], {len, _} = file), do: [{a + len, :gap} | rest]

     

       219
       219
       +
         defp rep([file, {b, :gap} | rest], {len, _} = file), do: [{len + b, :gap} | rest]

     

       220
       220
       +
         defp rep([file | rest], {len, _} = file), do: [{len, :gap} | rest]

     

       221
       221
       +
         defp rep([hd | rest], file), do: [hd | rep(rest, file)]

     

       222
       222
       +
       end

     

       223
       223
       +
       ```

     

       224
       224
       +
       

     

       225
       225
       +
       <!-- livebook:{"output":true} -->

     

       226
       226
       +
       

     

       227
       227
       +
       ```

     

       228
       228
       +
       {:module, Defrag, <<70, 79, 82, 49, 0, 0, 12, ...>>, {:rep, 2}}

     

       229
       229
       +
       ```

     

       230
       230
       +
       

     

       231
       231
       +
       ```elixir

     

       232
       232
       +
       files

     

       233
       233
       +
       |> Defrag.run()

     

       234
       234
       +
       |> Disk.checksum()

     

       235
       235
       +
       ```

     

       236
       236
       +
       

     

       237
       237
       +
       <!-- livebook:{"output":true} -->

     

       238
       238
       +
       

     

       239
       239
       +
       ```

     

       240
       240
       +
       6353648390778

     

       241
       241
       +
       ```

     

       242
       242
       +
       

     

       243
       243
       +
       <!-- livebook:{"offset":8665,"stamp":{"token":"XCP.-mRlAHFcVs4Mg2hQj8TCLWgOv8zjlatUnbxbgI43tZXllMXB8VfJTbRJrHTJ1k_FrGDhUdviUPyCSPNKqXk-ZOQ9PHWUPFkLaK5S4SMKa18Ny7WrQvSmaHuoE2R6vJhqrck","version":2}} -->

+218

2024/day10.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 10

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMCIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "10", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "543067650323210321032110356789890110710189878760134567\n612148941212306782345091235410765227893258759651021298\n701238932301456798106787549323454336794567549842330807\n898547215450589867287654678892961245987654456732498910\n987656306769678956398013234781870301256003301201567821\n234543215878760145478920105690210982340112210341056932\n109650124981232230569834124567345673451234985452347845\n018744323890341021656765033438454589298545676701037796\n199803210787650110765017842129823672107655677812378987\n785012345654789541874326956010510563201234389983405676\n174321498723498632903455467173421454102348210234514430\n065430239014323721212762398982567876218959650149623521\n145540128765017890101871081071018967327968743898734678\n236692134984178768718981012567894458456876212798604329\n987783005673269659654108923458763349663212108789015012\n896654012562154546743267830309854218767103419276126787\n765780123473043432890154321212903109878756578125435698\n434099874984012301740125654567812893469017647030165556\n323101065765101787434436763058906732154178736543256765\n013298187890678696325569892143215440043289128954343894\n010367296541549045016678765014300351234567037760012983\n329458305032132134787867410967891267653438546891898012\n458789414145010120196986323898763298344129655432743210\n567076523236678743285898456777654101201098766653658901\n456167654107549658374567689985403100312434985567877014\n343228943298938569843210576876312238920125676656986323\n651014543498127478755765435410278947437876985543235434\n743223672567078369876890324320127656506987234350145632\n894102981089569232125981210451256543215432122341076541\n765091234676352101034674323401237894101341001456789830\n014780365445443032126501012532345743103210112565898321\n123689876034321145098432107645236743254101101876543210\n094545763125210056788943258896107858969010332987674301\n785430432106782169877652349787567967678321245696784561\n876021569045893458965601654343478914565414326781093870\n987109878010432167014298710234323901258905015492012901\n789219894324569052123109620123217892109876012323458692\n654308765543678743013234538994106543010870965410069783\n789877787632189852101110145885287676521961871012178654\n034565896601087601211001406776896789437652676523468743\n121053795542194512389132312345445676548943989430549012\n262342187634765433498545434531230107401232104321678298\n876533014123892324567696526540043298340981010780890187\n983414523016101019876587017832134781256672125690743296\n032101654327892100345678789901295690764543434321652345\n123089789236743981234589654800387789835678987787601336\n854176590187656876104310343211456876544549016098543223\n965765410194545675465231230898565963233432145123210112\n876894321243232980370110141767653210112321039654101101\n146765232100101061289879852632154100203410128789210322\n036787103761267876518768763543069911012543454376325412\n123498654854356987405650654985678892327632567215436701\n210567569983543292314321569876301765438761078904589898\n325456478754330101223433478765432654349652987615678765"}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       map =

     

       27
       27
       +
         for {row, y} <- puzzle_input |> String.split("\n", trim: true) |> Enum.with_index(),

     

       28
       28
       +
             {h, x} <- row |> String.to_charlist() |> Enum.with_index(),

     

       29
       29
       +
             into: %{},

     

       30
       30
       +
             do: {{x, y}, h - ?0}

     

       31
       31
       +
       ```

     

       32
       32
       +
       

     

       33
       33
       +
       <!-- livebook:{"output":true} -->

     

       34
       34
       +
       

     

       35
       35
       +
       ```

     

       36
       36
       +
       %{

     

       37
       37
       +
         {37, 47} => 3,

     

       38
       38
       +
         {38, 2} => 4,

     

       39
       39
       +
         {1, 26} => 5,

     

       40
       40
       +
         {32, 15} => 4,

     

       41
       41
       +
         {35, 30} => 3,

     

       42
       42
       +
         {37, 53} => 4,

     

       43
       43
       +
         {4, 5} => 4,

     

       44
       44
       +
         {8, 50} => 3,

     

       45
       45
       +
         {11, 39} => 1,

     

       46
       46
       +
         {22, 38} => 1,

     

       47
       47
       +
         {20, 41} => 8,

     

       48
       48
       +
         {29, 25} => 6,

     

       49
       49
       +
         {29, 26} => 0,

     

       50
       50
       +
         {47, 27} => 0,

     

       51
       51
       +
         {31, 42} => 4,

     

       52
       52
       +
         {9, 34} => 0,

     

       53
       53
       +
         {47, 38} => 2,

     

       54
       54
       +
         {20, 3} => 7,

     

       55
       55
       +
         {47, 44} => 1,

     

       56
       56
       +
         {22, 37} => 3,

     

       57
       57
       +
         {22, 36} => 0,

     

       58
       58
       +
         {45, 7} => 7,

     

       59
       59
       +
         {19, 38} => 0,

     

       60
       60
       +
         {27, 21} => 9,

     

       61
       61
       +
         {9, 33} => 1,

     

       62
       62
       +
         {26, 41} => 4,

     

       63
       63
       +
         {52, 42} => 8,

     

       64
       64
       +
         {21, 35} => 2,

     

       65
       65
       +
         {42, 8} => 6,

     

       66
       66
       +
         {19, 22} => 9,

     

       67
       67
       +
         {16, 10} => 3,

     

       68
       68
       +
         {21, 45} => 5,

     

       69
       69
       +
         {11, 8} => 7,

     

       70
       70
       +
         {26, 21} => 0,

     

       71
       71
       +
         {21, 48} => 1,

     

       72
       72
       +
         {50, 40} => 9,

     

       73
       73
       +
         {10, 25} => 9,

     

       74
       74
       +
         {11, 19} => 0,

     

       75
       75
       +
         {16, 38} => 5,

     

       76
       76
       +
         {35, 15} => 8,

     

       77
       77
       +
         {37, 15} => 6,

     

       78
       78
       +
         {35, 26} => 7,

     

       79
       79
       +
         {28, 20} => 1,

     

       80
       80
       +
         {45, 19} => 9,

     

       81
       81
       +
         {27, 22} => 8,

     

       82
       82
       +
         {16, 24} => 5,

     

       83
       83
       +
         {6, 18} => 0,

     

       84
       84
       +
         {10, 32} => 2,

     

       85
       85
       +
         {32, ...} => 8,

     

       86
       86
       +
         {...} => 7,

     

       87
       87
       +
         ...

     

       88
       88
       +
       }

     

       89
       89
       +
       ```

     

       90
       90
       +
       

     

       91
       91
       +
       ```elixir

     

       92
       92
       +
       starts = Enum.filter(map, fn {_, elev} -> elev == 0 end)

     

       93
       93
       +
       ```

     

       94
       94
       +
       

     

       95
       95
       +
       <!-- livebook:{"output":true} -->

     

       96
       96
       +
       

     

       97
       97
       +
       ```

     

       98
       98
       +
       [

     

       99
       99
       +
         {{38, 5}, 0},

     

       100
       100
       +
         {{24, 7}, 0},

     

       101
       101
       +
         {{11, 35}, 0},

     

       102
       102
       +
         {{3, 9}, 0},

     

       103
       103
       +
         {{15, 36}, 0},

     

       104
       104
       +
         {{41, 32}, 0},

     

       105
       105
       +
         {{51, 14}, 0},

     

       106
       106
       +
         {{51, 24}, 0},

     

       107
       107
       +
         {{5, 12}, 0},

     

       108
       108
       +
         {{4, 35}, 0},

     

       109
       109
       +
         {{40, 4}, 0},

     

       110
       110
       +
         {{46, 4}, 0},

     

       111
       111
       +
         {{22, 30}, 0},

     

       112
       112
       +
         {{27, 12}, 0},

     

       113
       113
       +
         {{7, 4}, 0},

     

       114
       114
       +
         {{24, 43}, 0},

     

       115
       115
       +
         {{31, 20}, 0},

     

       116
       116
       +
         {{29, 42}, 0},

     

       117
       117
       +
         {{29, 9}, 0},

     

       118
       118
       +
         {{10, 2}, 0},

     

       119
       119
       +
         {{0, 20}, 0},

     

       120
       120
       +
         {{15, 20}, 0},

     

       121
       121
       +
         {{14, 0}, 0},

     

       122
       122
       +
         {{42, 48}, 0},

     

       123
       123
       +
         {{40, 15}, 0},

     

       124
       124
       +
         {{43, 14}, 0},

     

       125
       125
       +
         {{19, 2}, 0},

     

       126
       126
       +
         {{14, 22}, 0},

     

       127
       127
       +
         {{34, 35}, 0},

     

       128
       128
       +
         {{38, 42}, 0},

     

       129
       129
       +
         {{23, 5}, 0},

     

       130
       130
       +
         {{0, 11}, 0},

     

       131
       131
       +
         {{44, 11}, 0},

     

       132
       132
       +
         {{15, 30}, 0},

     

       133
       133
       +
         {{17, 44}, 0},

     

       134
       134
       +
         {{31, 32}, 0},

     

       135
       135
       +
         {{48, 28}, 0},

     

       136
       136
       +
         {{21, 39}, 0},

     

       137
       137
       +
         {{49, 13}, 0},

     

       138
       138
       +
         {{29, 45}, 0},

     

       139
       139
       +
         {{4, 37}, 0},

     

       140
       140
       +
         {{53, 31}, 0},

     

       141
       141
       +
         {{45, 46}, 0},

     

       142
       142
       +
         {{43, 29}, 0},

     

       143
       143
       +
         {{8, 0}, 0},

     

       144
       144
       +
         {{47, 42}, 0},

     

       145
       145
       +
         {{7, 14}, 0},

     

       146
       146
       +
         {{52, ...}, 0},

     

       147
       147
       +
         {{...}, ...},

     

       148
       148
       +
         {...},

     

       149
       149
       +
         ...

     

       150
       150
       +
       ]

     

       151
       151
       +
       ```

     

       152
       152
       +
       

     

       153
       153
       +
       ```elixir

     

       154
       154
       +
       defmodule Trail do

     

       155
       155
       +
         def traverse(start, map), do: MapSet.new(traverse(start, map, []))

     

       156
       156
       +
       

     

       157
       157
       +
         defp traverse({curr, 9}, _map, acc), do: [[{curr, 9} | acc]]

     

       158
       158
       +
         defp traverse({curr, elev}, map, acc) do

     

       159
       159
       +
           curr

     

       160
       160
       +
           |> surroundings()

     

       161
       161
       +
           |> then(&Map.take(map, &1))

     

       162
       162
       +
           |> Enum.filter(fn {_, h} -> elev + 1 == h end)

     

       163
       163
       +
           |> Enum.flat_map(&traverse(&1, map, [{curr, elev} | acc]))

     

       164
       164
       +
         end

     

       165
       165
       +
       

     

       166
       166
       +
         defp surroundings({x, y}) do

     

       167
       167
       +
           [

     

       168
       168
       +
             {x, y - 1},

     

       169
       169
       +
             {x - 1, y},

     

       170
       170
       +
             {x, y + 1},

     

       171
       171
       +
             {x + 1, y}

     

       172
       172
       +
           ]

     

       173
       173
       +
         end

     

       174
       174
       +
       end

     

       175
       175
       +
       ```

     

       176
       176
       +
       

     

       177
       177
       +
       <!-- livebook:{"output":true} -->

     

       178
       178
       +
       

     

       179
       179
       +
       ```

     

       180
       180
       +
       {:module, Trail, <<70, 79, 82, 49, 0, 0, 11, ...>>, {:surroundings, 1}}

     

       181
       181
       +
       ```

     

       182
       182
       +
       

     

       183
       183
       +
       ## Part 1

     

       184
       184
       +
       

     

       185
       185
       +
       ```elixir

     

       186
       186
       +
       starts

     

       187
       187
       +
       |> Enum.map(fn start ->

     

       188
       188
       +
         Trail.traverse(start, map)

     

       189
       189
       +
         |> MapSet.new(&hd/1)

     

       190
       190
       +
         |> MapSet.size()

     

       191
       191
       +
       end)

     

       192
       192
       +
       |> Enum.sum()

     

       193
       193
       +
       ```

     

       194
       194
       +
       

     

       195
       195
       +
       <!-- livebook:{"output":true} -->

     

       196
       196
       +
       

     

       197
       197
       +
       ```

     

       198
       198
       +
       733

     

       199
       199
       +
       ```

     

       200
       200
       +
       

     

       201
       201
       +
       ## Section

     

       202
       202
       +
       

     

       203
       203
       +
       ```elixir

     

       204
       204
       +
       starts

     

       205
       205
       +
       |> Enum.map(fn start ->

     

       206
       206
       +
         Trail.traverse(start, map)

     

       207
       207
       +
         |> MapSet.size()

     

       208
       208
       +
       end)

     

       209
       209
       +
       |> Enum.sum()

     

       210
       210
       +
       ```

     

       211
       211
       +
       

     

       212
       212
       +
       <!-- livebook:{"output":true} -->

     

       213
       213
       +
       

     

       214
       214
       +
       ```

     

       215
       215
       +
       1514

     

       216
       216
       +
       ```

     

       217
       217
       +
       

     

       218
       218
       +
       <!-- livebook:{"offset":6605,"stamp":{"token":"XCP.68U6SzidJCV7il26kiMv6z5qLEx_50_v2V7x6LqV9t8LQG1-aShVMNE1DEgCj9SwpKOn02np0aeSu5T1parIYMF9MeWGGfqP-oc4UGnDiDGDtJ5RGqdwcxcPjuPUQmCtZj0","version":2}} -->

+110

2024/day11.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 11

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMSIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "11", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok, "554735 45401 8434 0 188 7487525 77 7"}

     

       22
       22
       +
       ```

     

       23
       23
       +
       

     

       24
       24
       +
       ```elixir

     

       25
       25
       +
       # puzzle_input = "125 17"

     

       26
       26
       +
       

     

       27
       27
       +
       stones =

     

       28
       28
       +
         puzzle_input

     

       29
       29
       +
         |> String.split()

     

       30
       30
       +
         |> Enum.map(&String.to_integer/1)

     

       31
       31
       +
         |> Enum.frequencies()

     

       32
       32
       +
       ```

     

       33
       33
       +
       

     

       34
       34
       +
       <!-- livebook:{"output":true} -->

     

       35
       35
       +
       

     

       36
       36
       +
       ```

     

       37
       37
       +
       %{0 => 1, 7 => 1, 77 => 1, 188 => 1, 8434 => 1, 45401 => 1, 554735 => 1, 7487525 => 1}

     

       38
       38
       +
       ```

     

       39
       39
       +
       

     

       40
       40
       +
       ```elixir

     

       41
       41
       +
       defmodule Stones do

     

       42
       42
       +
         def blink(list), do: Enum.reduce(list, %{}, &alter/2)

     

       43
       43
       +
       

     

       44
       44
       +
         defp alter({0, count}, map), do: update(map, 1, count)

     

       45
       45
       +
       

     

       46
       46
       +
         defp alter({n, count}, map) do

     

       47
       47
       +
           len = len(n)

     

       48
       48
       +
       

     

       49
       49
       +
           if rem(len, 2) == 0 do

     

       50
       50
       +
             half = 10 ** div(len, 2)

     

       51
       51
       +
       

     

       52
       52
       +
             map

     

       53
       53
       +
             |> update(div(n, half), count)

     

       54
       54
       +
             |> update(rem(n, half), count)

     

       55
       55
       +
           else

     

       56
       56
       +
             update(map, n * 2024, count)

     

       57
       57
       +
           end

     

       58
       58
       +
         end

     

       59
       59
       +
       

     

       60
       60
       +
         defp len(n) when n < 10, do: 1

     

       61
       61
       +
         defp len(n) when n < 100, do: 2

     

       62
       62
       +
         defp len(n) when n < 1000, do: 3

     

       63
       63
       +
         defp len(n) when n < 10000, do: 4

     

       64
       64
       +
         defp len(n), do: ceil(:math.log10(n))

     

       65
       65
       +
       

     

       66
       66
       +
         defp update(map, key, val), do: Map.update(map, key, val, &(&1 + val))

     

       67
       67
       +
       end

     

       68
       68
       +
       ```

     

       69
       69
       +
       

     

       70
       70
       +
       <!-- livebook:{"output":true} -->

     

       71
       71
       +
       

     

       72
       72
       +
       ```

     

       73
       73
       +
       {:module, Stones, <<70, 79, 82, 49, 0, 0, 11, ...>>, {:update, 3}}

     

       74
       74
       +
       ```

     

       75
       75
       +
       

     

       76
       76
       +
       ## Part 1

     

       77
       77
       +
       

     

       78
       78
       +
       ```elixir

     

       79
       79
       +
       1..25

     

       80
       80
       +
       |> Enum.reduce(stones, fn _, acc ->

     

       81
       81
       +
         Stones.blink(acc)

     

       82
       82
       +
       end)

     

       83
       83
       +
       |> Map.values()

     

       84
       84
       +
       |> Enum.sum()

     

       85
       85
       +
       ```

     

       86
       86
       +
       

     

       87
       87
       +
       <!-- livebook:{"output":true} -->

     

       88
       88
       +
       

     

       89
       89
       +
       ```

     

       90
       90
       +
       209412

     

       91
       91
       +
       ```

     

       92
       92
       +
       

     

       93
       93
       +
       ## Part 2

     

       94
       94
       +
       

     

       95
       95
       +
       ```elixir

     

       96
       96
       +
       1..75

     

       97
       97
       +
       |> Enum.reduce(stones, fn _, acc ->

     

       98
       98
       +
         Stones.blink(acc)

     

       99
       99
       +
       end)

     

       100
       100
       +
       |> Map.values()

     

       101
       101
       +
       |> Enum.sum()

     

       102
       102
       +
       ```

     

       103
       103
       +
       

     

       104
       104
       +
       <!-- livebook:{"output":true} -->

     

       105
       105
       +
       

     

       106
       106
       +
       ```

     

       107
       107
       +
       248967696501656

     

       108
       108
       +
       ```

     

       109
       109
       +
       

     

       110
       110
       +
       <!-- livebook:{"offset":1963,"stamp":{"token":"XCP.YCGtDQl3XNWJm5oY1OPI2QDRB7EIjZxBmwK3eswS1ryD28kg8fS_fKGIFJGFbtL1NL7wYrv2ADW60yeAZnCv5KbDelUm_bxkPN4_K56iTJ1toOGfIRYlo2lj5beAjrmbhRw","version":2}} -->

+811

2024/day12.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 12

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, :range_set])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMiIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "12", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "KKKKKKZZZZZZZZDDQQQQXXXXXXXXXXXXTTTTTTTTTTTTDHHHHHHHHHHHHHHHHHGGGGGGPPPGUUGGXXGGGGGGJJJJJJJJJIIIIIIIIIIIIIIIIIIIIDIIIIIIIIIIIKIIIIIIIIIIIIIM\nKKKKKKZZZZZZZDDDQQQQXXCXXXXXXXXXTTTTTTTTTTTTTHHHHHHHHHHHHHHHHHGGGGGGGGPGUUGGGGGGGGGJJJJJJJJIIIIIIIIIIIIIIIIIIVVVIDDIIIIIIIKKKKIIIIIIIIIIIIMM\nKKKKKZZZZZZZZZZQQQQQQXCCCXXXXXXTTTTTTTTTTTTTTTHHHHHHHHHHHHHHHGGGGGGGGGGGGGGGGGGGGJJJJJJJJJJIIIIIIIIIIIIIIIIIIVIIIIDIHIIIIIIIKKIIIIIIIIIIIIMM\nKKKKKZZZZZZZZEEHQQQYQQZCCCCXXXTTTTTTTTTTTTTTHHHIIIIHHHHHHHHHHGGGGGGGGGGGGGGGGGGGGGJJJJJJJJIIIIIIIIKKKKKKIIIIIVIIIIDHHIIIIIIIIKIIIIIIIIIIIIIM\nKKKKKKOOEZEEEEHHQQQYYCCCCCCTTTTTTTTTTTTTTTTTVVVIIIIHHHHHHBBBBGGGGGGGGGGGGGGGGGGGGJJJJJJJJJIIIIIIIBCKKKKKIIIIIIIIHHHHHIIIIIIIIIIIIIIIIIIIMMMM\nKKKKKOOEEEEEEEHHHQQYYCCCCCCCCCTTTTTTTTTTTOOTTIIIIIHHHHHHHHHBBBGGGGGGGGGGGGGGGGGGGJJJJJJJJJIIIIIBBBCKKKKKKKIIIIIHHHHHIIIIIIIIIIIIIIIIIIIIIIMM\nKKKKKKOGGEEEGHHHHQDDYYCCCCCCCOOTTTTTTTTTTTIDIIIIIIIHHHHHHBBBBBGGGGGGGGGGGGGGGGGGGGJJJJJJJJIIIIBBBBKKKKKKKKIKIIIBHHHHHIIIIIIIIIIIIIIIIIIIIIIM\nKKKKTKOOGEGGGHGHDDDDDYYYCCCCCOOTTTTTTTTTTIIIIIIIIIIHHHHHBBBBBBGGGGGJGGGQGGLGGGGGGJJJJJJRRJJJBBBBKKKKKKKKKKKKKKFHHHHHHHIHHIIIIIRIIIIIIIIIIMMM\nKRRRVOOGGGGGGGGGDDDDPDDYDSSCCCOOOTTOTTTTTIIIIIIIIIIHHHBHBBBBBBGGGGGJGJJGGGGGGGGGGJJJJJRRRRRWBBBBBBVKKKKKKKKKKTHHHHHHHHHHIIIIIIIIIIIIIIGIIMMM\nYVRVVOOGGGGGGGDDDDDDDDDDDSSCCOOOOOOOTOOOIIIIIIIIIIIHHBBBBBBBBBGGGGGJJJJJGGGCGGFFGFFJRRRRRRRWWBBBBBBKKKKKKKKKKKHHHHHHHHHFFIIIIIIIIIIIIIGIVVMM\nYVRVVVVGGGGGGGDDDDDDDDDDDDDCCOOOOOOOOOOOIIIIIIIIIIIHHHBBBBBBBBBBGGJJJJJJJJJGGGFFFFRRRRRRRRRRRBBBBBKKKKKKKKKKKKKHHHHHHHHFIIIIIIIIIIIIIIIIVVVM\nYVVVVVVVVGGGGGGDDDDDDDDDDDDOOOOOOOOOOOOOOIIIIIIEEIIHHHOBBBBBBBBBBGJJJJJJJJJFFFFFFFFFRRRRRRRRRRBBBBKBKKKKKKKKKKKHHHHHHFFFFIIFIIIIZIIAIIIIVVMM\nVVVVVVVVVGGGGGGDDDDDDDDDDDOOOOOOOOOOOOOOOOOOOIOOEJJHHHOBBBBBBBBBBEEJEEEEEFFFFFFFFFFFRRRRRRRNBBBBBBBBKKKKKKKKKKRHHHHHHFFFFFFFIIIIIIIIBBIIVMMM\nVVVVVVVVVGGGGGDDDDDDDDDDDDEOOOOOOOOOOOOOOOOOOOOOEEJHHOOOBBBBGGGGBEEEHEEXFFFFFFFFFFFFRRRRRRBNBBBBBBBBKKKKKKKKKKHHHHHHHFFFFFFFIIIIIIIIBBVVVMMM\nVVVVVVVVGGGGGDPDDDDDDDDDDDEEOOOOOOOOOOOOOOOOOOOOEEJEOOOOBGGGGGGGHEEEEEEFFFLFFFFFFFFRRRRRRRBBBBBBBBBBBKKKKKKKKFHHHHHFFFFFFFFIIIIIIIIIIVVVVVMM\nVVVVVVVVGGGGGDDDDDDDDDDDDDDEOOOOOOOOGOOOOOEOIIOOEEEEOOOOOGGGGGGGEEEEEEEFFFFFFFFFFFFFRDRRXXBBBBBBBBBBBKKKKKKKKKBBHHHHFFFFFFFIIIIIIIIIVVVVVVLM\nVVVVVVVVWGGGGDDDDDDDDDDDDEEEOOOOOOGGGOOOOOOIIIIIEEOOOOBOOGGGGGGGUEEEEEGUFFFFFFFFFFFFDDDDMMSBBBBBBBBBBBBBKKKKKKBBBHHFFFFFFFFIIIIINNWIVVVVVVLL\nVVVVVVZZZFGGGRDDDDDDDDDDDEOOOOOOOFFFGOGOOIIIBIBBBEOBBBBBBGGGGGGGEEEEEGGUUFFFFFFFFFFFDDDDDMMMBBBBBBBBBBBKKKKKKBBBBHHFFFFFFFFFIINNNNNPPVVVVLLL\nVVVZZZZZZZIGRRADADDDDDDDDEOEEOYYGFFGGOGGGIIIBBBBBEBBBBBBBGGGGGGGFEEEGGGGUUFFFFFFFFFHDVVVVVVMBBBBBBBBBBBKKKKBBBBBBBBBFFFFFFFRRRRNNNNPPVVLLLLL\nVVZZZZZZZZZRRRADAADEEEDDDEEEEOYYGGGGGGGGGGIBBBBBBBBBBBBBBGGGGGGGEEEEBGGGUUFFFFFFFFFHHVVVVVVMBBBBBBBBBPBKKBBBBBBBBBBFFFFFFFFFRBRNNNNNNNVLLLLL\nVZZZZZBZZZNAAAAAAAAEEEEEEEEEGGYYGGGGGGGGGIIBBBBBBBBBBBBBBGGGGGFFFEEBBGGGGCFFFFFFFFFHHVVVVVVMBBBBBBBMMMMMBBBBBBBGBBBFFFFFFFGGBBBNNNNNLLLLLLLL\nBBBBBBBZZNNNAAAAAAEEEEEEGEEEEGYYGGGGGGGIIIIBBBBBBBBBBBBBBGGGGGFFCCCBGGGCCCFCCWWWWWWWHVVVVVVMMBBBMMMMMMMMBBBBBBBGBGGTTFFFFFFFFBBNNNNNLLLLLLLL\nJBBBBBBBZZNAAAAAAAAAAGGGGGGEGGGGGGGGGGGGGIHDBBBBBBBBBBBBBBFFFFFCCCCCGGGCCKCCCWHHHHHHHVVVVVVMMVVVVVVMMMMMBBBBBBGGBGGTFFFFTFFFFBBBBBBBBBLLLLLL\nJJJBBBBBBAAAAAAAAAAAGGGGGGGEGGGGGGGGGGGGIIHDBBBBBBBBBBBBBBBBFFFCZCCCCCCCCCCCCHHHHHHHHVVVVVVMMVVVVVVMMMMMBBBBBBGGGGGTTFFTTFFFBBBBBBBBBBLLLLLL\nJJJBBBBAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGIHHDHHHHBBBBBBSSSSFFFFFCCCCCCCCCCCCCCHHHHHHHHVVVVVVHHVVVVVVMMMMMBBBBBBGGGGGTTTTTTFHFBBBBBBBBBBBLBBLV\nJJJJJJAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGHHHHHHHHHHIJJJJJSSSSFFFCCFFCCCCCCCCCCCHHHHHHHHVVVVVVVVVVVVVVMMMMMMBBBBGGGGGGGGGTTTLLBBBBBBBBBBBBBBBBV\nJJJJJJAAAAAAAAAAAAAAGAAGGGGGGGGGGGGGGGGHHHHHHHHHHJJJHJSSSSSFFFFFFCCCCCCCCCCCCHRHHHHHHVVVVVVVVVVVVVVGMMMMMBBBBGGGGGGGGGTTLLLLLLBBBBBBBBBBBBBB\nJJJJJJAAAAAAAAAAAAAAAAGGGGGGGGHGGGGGGGGHHHHHHHHHHJJJJJJJSJSFFFFFCCCCCCCCCCCCCCHHHHHHHVVVVVVVVVVVVVVGGMMCMBBBGGGGGGGGPGGGLLZLLLBBBBBBBBBBBBBB\nJJJJJJAAAAAAAAAAAAAAGAGGGGGGGGGGGGZZGHGHHHHHHHHHJJJJJJJJJJSFFFFFCCCCCCCCCCCCCCHHHHHHHHHOHHOOMVVVVVVGGJGGIBBBTGGGGGGTGGGLLLLLLLLBBBBBBBBBBBBB\nJJJJJAA" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       map =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.with_index()

     

       30
       30
       +
         |> Enum.flat_map(fn {row, y} ->

     

       31
       31
       +
           row

     

       32
       32
       +
           |> String.split("", trim: true)

     

       33
       33
       +
           |> Enum.with_index()

     

       34
       34
       +
           |> Enum.map(fn {plant, x} -> {{x, y}, plant} end)

     

       35
       35
       +
         end)

     

       36
       36
       +
         |> Map.new()

     

       37
       37
       +
       ```

     

       38
       38
       +
       

     

       39
       39
       +
       <!-- livebook:{"output":true} -->

     

       40
       40
       +
       

     

       41
       41
       +
       ```

     

       42
       42
       +
       %{

     

       43
       43
       +
         {18, 103} => "H",

     

       44
       44
       +
         {76, 13} => "F",

     

       45
       45
       +
         {61, 121} => "X",

     

       46
       46
       +
         {112, 138} => "T",

     

       47
       47
       +
         {37, 47} => "U",

     

       48
       48
       +
         {65, 63} => "G",

     

       49
       49
       +
         {77, 129} => "E",

     

       50
       50
       +
         {120, 47} => "L",

     

       51
       51
       +
         {38, 2} => "T",

     

       52
       52
       +
         {1, 26} => "J",

     

       53
       53
       +
         {116, 69} => "W",

     

       54
       54
       +
         {124, 56} => "O",

     

       55
       55
       +
         {83, 76} => "N",

     

       56
       56
       +
         {117, 125} => "Q",

     

       57
       57
       +
         {100, 134} => "W",

     

       58
       58
       +
         {78, 139} => "D",

     

       59
       59
       +
         {32, 15} => "O",

     

       60
       60
       +
         {103, 106} => "N",

     

       61
       61
       +
         {30, 113} => "J",

     

       62
       62
       +
         {123, 104} => "W",

     

       63
       63
       +
         {68, 134} => "Q",

     

       64
       64
       +
         {124, 60} => "O",

     

       65
       65
       +
         {89, 14} => "R",

     

       66
       66
       +
         {35, 30} => "E",

     

       67
       67
       +
         {37, 53} => "H",

     

       68
       68
       +
         {77, 130} => "E",

     

       69
       69
       +
         {2, 132} => "Q",

     

       70
       70
       +
         {4, 5} => "K",

     

       71
       71
       +
         {8, 50} => "X",

     

       72
       72
       +
         {78, 98} => "Y",

     

       73
       73
       +
         {101, 62} => "X",

     

       74
       74
       +
         {98, 136} => "W",

     

       75
       75
       +
         {95, 56} => "D",

     

       76
       76
       +
         {74, 12} => "F",

     

       77
       77
       +
         {17, 138} => "F",

     

       78
       78
       +
         {102, 74} => "S",

     

       79
       79
       +
         {11, 39} => "P",

     

       80
       80
       +
         {131, 5} => "I",

     

       81
       81
       +
         {65, 43} => "S",

     

       82
       82
       +
         {22, 38} => "R",

     

       83
       83
       +
         {14, 86} => "N",

     

       84
       84
       +
         {139, 46} => "U",

     

       85
       85
       +
         {12, 135} => "Q",

     

       86
       86
       +
         {65, 131} => "A",

     

       87
       87
       +
         {49, 117} => "O",

     

       88
       88
       +
         {20, 41} => "D",

     

       89
       89
       +
         {29, 25} => "G",

     

       90
       90
       +
         {86, 10} => "R",

     

       91
       91
       +
         {83, ...} => "I",

     

       92
       92
       +
         {...} => "G",

     

       93
       93
       +
         ...

     

       94
       94
       +
       }

     

       95
       95
       +
       ```

     

       96
       96
       +
       

     

       97
       97
       +
       ```elixir

     

       98
       98
       +
       defmodule Garden do

     

       99
       99
       +
         def plots(map) do

     

       100
       100
       +
           map

     

       101
       101
       +
           |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

       102
       102
       +
           |> Enum.flat_map(fn {kind, pts} ->

     

       103
       103
       +
             for parcel <- parcels(MapSet.new(pts), []) do

     

       104
       104
       +
               {kind, parcel}

     

       105
       105
       +
             end

     

       106
       106
       +
           end)

     

       107
       107
       +
         end

     

       108
       108
       +
       

     

       109
       109
       +
         def parcels(set, acc) do

     

       110
       110
       +
           case Enum.take(set, 1) do

     

       111
       111
       +
             [] ->

     

       112
       112
       +
               acc

     

       113
       113
       +
       

     

       114
       114
       +
             [p] ->

     

       115
       115
       +
               {parcel, rest} = flood(p, MapSet.new(), set)

     

       116
       116
       +
       

     

       117
       117
       +
               parcels(rest, [parcel | acc])

     

       118
       118
       +
           end

     

       119
       119
       +
         end

     

       120
       120
       +
       

     

       121
       121
       +
         def flood({x, y} = curr, visited, potential) do

     

       122
       122
       +
           visited = MapSet.put(visited, curr)

     

       123
       123
       +
           potential = MapSet.delete(potential, curr)

     

       124
       124
       +
       

     

       125
       125
       +
           for next <- [

     

       126
       126
       +
                 {x - 1, y},

     

       127
       127
       +
                 {x + 1, y},

     

       128
       128
       +
                 {x, y - 1},

     

       129
       129
       +
                 {x, y + 1}

     

       130
       130
       +
               ],

     

       131
       131
       +
               next in potential,

     

       132
       132
       +
               reduce: {visited, potential} do

     

       133
       133
       +
             {v, p} -> flood(next, v, p)

     

       134
       134
       +
           end

     

       135
       135
       +
         end

     

       136
       136
       +
       

     

       137
       137
       +
         def as_int(false), do: 0

     

       138
       138
       +
         def as_int(true), do: 1

     

       139
       139
       +
       end

     

       140
       140
       +
       ```

     

       141
       141
       +
       

     

       142
       142
       +
       <!-- livebook:{"output":true} -->

     

       143
       143
       +
       

     

       144
       144
       +
       ```

     

       145
       145
       +
       {:module, Garden, <<70, 79, 82, 49, 0, 0, 15, ...>>, {:as_int, 1}}

     

       146
       146
       +
       ```

     

       147
       147
       +
       

     

       148
       148
       +
       ```elixir

     

       149
       149
       +
       plots = Garden.plots(map)

     

       150
       150
       +
       ```

     

       151
       151
       +
       

     

       152
       152
       +
       <!-- livebook:{"output":true} -->

     

       153
       153
       +
       

     

       154
       154
       +
       ```

     

       155
       155
       +
       [

     

       156
       156
       +
         {"A", MapSet.new([{131, 11}])},

     

       157
       157
       +
         {"A",

     

       158
       158
       +
          MapSet.new([

     

       159
       159
       +
            {54, 38},

     

       160
       160
       +
            {54, 39},

     

       161
       161
       +
            {55, 38},

     

       162
       162
       +
            {56, 36},

     

       163
       163
       +
            {56, 37},

     

       164
       164
       +
            {56, 38},

     

       165
       165
       +
            {57, 37},

     

       166
       166
       +
            {57, 38},

     

       167
       167
       +
            {57, 39},

     

       168
       168
       +
            {57, 40},

     

       169
       169
       +
            {58, 36},

     

       170
       170
       +
            {58, 37},

     

       171
       171
       +
            {58, 38},

     

       172
       172
       +
            {58, 39},

     

       173
       173
       +
            {58, 40},

     

       174
       174
       +
            {59, 36},

     

       175
       175
       +
            {59, 37},

     

       176
       176
       +
            {59, 38},

     

       177
       177
       +
            {60, 36},

     

       178
       178
       +
            {60, 37},

     

       179
       179
       +
            {60, 38},

     

       180
       180
       +
            {61, 36},

     

       181
       181
       +
            {61, 37},

     

       182
       182
       +
            {61, 38},

     

       183
       183
       +
            {62, 38},

     

       184
       184
       +
            {63, 38}

     

       185
       185
       +
          ])},

     

       186
       186
       +
         {"A", MapSet.new([{18, 56}])},

     

       187
       187
       +
         {"A",

     

       188
       188
       +
          MapSet.new([

     

       189
       189
       +
            {93, 86},

     

       190
       190
       +
            {94, 86},

     

       191
       191
       +
            {95, 86},

     

       192
       192
       +
            {95, 87},

     

       193
       193
       +
            {95, 88},

     

       194
       194
       +
            {96, 86},

     

       195
       195
       +
            {96, 87},

     

       196
       196
       +
            {97, 80},

     

       197
       197
       +
            {97, 81},

     

       198
       198
       +
            {97, 82},

     

       199
       199
       +
            {97, 83},

     

       200
       200
       +
            {97, 84},

     

       201
       201
       +
            {97, 85},

     

       202
       202
       +
            {97, 86},

     

       203
       203
       +
            {97, 87},

     

       204
       204
       +
            {98, 80},

     

       205
       205
       +
            {98, 81},

     

       206
       206
       +
            {98, 82},

     

       207
       207
       +
            {98, 83},

     

       208
       208
       +
            {98, 84},

     

       209
       209
       +
            {98, 85},

     

       210
       210
       +
            {99, 81},

     

       211
       211
       +
            {99, 82},

     

       212
       212
       +
            {99, 84}

     

       213
       213
       +
          ])},

     

       214
       214
       +
         {"A",

     

       215
       215
       +
          MapSet.new([

     

       216
       216
       +
            {35, 102},

     

       217
       217
       +
            {42, 111},

     

       218
       218
       +
            {38, 112},

     

       219
       219
       +
            {38, 108},

     

       220
       220
       +
            {39, 111},

     

       221
       221
       +
            {35, 106},

     

       222
       222
       +
            {41, 105},

     

       223
       223
       +
            {36, 105},

     

       224
       224
       +
            {36, 108},

     

       225
       225
       +
            {42, 110},

     

       226
       226
       +
            {35, 104},

     

       227
       227
       +
            {36, 109},

     

       228
       228
       +
            {43, 111},

     

       229
       229
       +
            {42, 107},

     

       230
       230
       +
            {41, 107},

     

       231
       231
       +
            {37, 108},

     

       232
       232
       +
            {41, 111},

     

       233
       233
       +
            {42, 108},

     

       234
       234
       +
            {39, 107},

     

       235
       235
       +
            {35, 103},

     

       236
       236
       +
            {36, 111},

     

       237
       237
       +
            {37, 113},

     

       238
       238
       +
            {37, 105},

     

       239
       239
       +
            {40, 110},

     

       240
       240
       +
            {38, 107},

     

       241
       241
       +
            {43, 107},

     

       242
       242
       +
            {38, 105},

     

       243
       243
       +
            {41, 110},

     

       244
       244
       +
            {34, 108},

     

       245
       245
       +
            {37, 109},

     

       246
       246
       +
            {35, 108},

     

       247
       247
       +
            {36, 106},

     

       248
       248
       +
            {42, 109},

     

       249
       249
       +
            {38, 114},

     

       250
       250
       +
            {37, 112},

     

       251
       251
       +
            {39, 110},

     

       252
       252
       +
            {39, 109},

     

       253
       253
       +
            {36, 103},

     

       254
       254
       +
            {38, 110},

     

       255
       255
       +
            {37, 111},

     

       256
       256
       +
            {39, 108},

     

       257
       257
       +
            {38, ...},

     

       258
       258
       +
            {...},

     

       259
       259
       +
            ...

     

       260
       260
       +
          ])},

     

       261
       261
       +
         {"A", MapSet.new([{70, 115}, {70, 116}, {70, 117}, {71, 116}, {71, 117}, {72, 116}, {72, 117}])},

     

       262
       262
       +
         {"A",

     

       263
       263
       +
          MapSet.new([

     

       264
       264
       +
            {85, 84},

     

       265
       265
       +
            {88, 82},

     

       266
       266
       +
            {87, 83},

     

       267
       267
       +
            {83, 84},

     

       268
       268
       +
            {87, 79},

     

       269
       269
       +
            {86, 82},

     

       270
       270
       +
            {86, 84},

     

       271
       271
       +
            {83, 85},

     

       272
       272
       +
            {87, 78},

     

       273
       273
       +
            {87, 84},

     

       274
       274
       +
            {85, 79},

     

       275
       275
       +
            {87, 81},

     

       276
       276
       +
            {85, 80},

     

       277
       277
       +
            {88, 83},

     

       278
       278
       +
            {84, 84},

     

       279
       279
       +
            {86, 81},

     

       280
       280
       +
            {86, 80},

     

       281
       281
       +
            {82, 85},

     

       282
       282
       +
            {85, 82},

     

       283
       283
       +
            {82, 84},

     

       284
       284
       +
            {82, 86},

     

       285
       285
       +
            {88, 81},

     

       286
       286
       +
            {87, 82},

     

       287
       287
       +
            {86, 83},

     

       288
       288
       +
            {85, 81},

     

       289
       289
       +
            {83, 83},

     

       290
       290
       +
            {84, 80},

     

       291
       291
       +
            {88, 84},

     

       292
       292
       +
            {83, 86},

     

       293
       293
       +
            {87, 80},

     

       294
       294
       +
            {87, 77},

     

       295
       295
       +
            {81, 85},

     

       296
       296
       +
            {85, 83},

     

       297
       297
       +
            {84, 85},

     

       298
       298
       +
            {84, 82},

     

       299
       299
       +
            {84, 81},

     

       300
       300
       +
            {84, 83}

     

       301
       301
       +
          ])},

     

       302
       302
       +
         {"A",

     

       303
       303
       +
          MapSet.new([

     

       304
       304
       +
            {19, 22},

     

       305
       305
       +
            {10, 25},

     

       306
       306
       +
            {16, 24},

     

       307
       307
       +
            {10, 32},

     

       308
       308
       +
            {17, 30},

     

       309
       309
       +
            {6, 29},

     

       310
       310
       +
            {18, 29},

     

       311
       311
       +
            {17, 22},

     

       312
       312
       +
            {13, 25},

     

       313
       313
       +
            {14, 24},

     

       314
       314
       +
            {10, 23},

     

       315
       315
       +
            {8, 29},

     

       316
       316
       +
            {13, 22},

     

       317
       317
       +
            {14, 28},

     

       318
       318
       +
            {6, 26},

     

       319
       319
       +
            {18, 26},

     

       320
       320
       +
            {16, 23},

     

       321
       321
       +
            {21, 26},

     

       322
       322
       +
            {19, 30},

     

       323
       323
       +
            {13, 27},

     

       324
       324
       +
            {16, 18},

     

       325
       325
       +
            {18, 23},

     

       326
       326
       +
            {9, 25},

     

       327
       327
       +
            {16, 29},

     

       328
       328
       +
            {7, 26},

     

       329
       329
       +
            {12, 27},

     

       330
       330
       +
            {16, 30},

     

       331
       331
       +
            {17, 24},

     

       332
       332
       +
            {18, 24},

     

       333
       333
       +
            {18, 22},

     

       334
       334
       +
            {6, 28},

     

       335
       335
       +
            {13, 20},

     

       336
       336
       +
            {9, 26},

     

       337
       337
       +
            {7, 27},

     

       338
       338
       +
            {11, 22},

     

       339
       339
       +
            {8, 25},

     

       340
       340
       +
            {17, 23},

     

       341
       341
       +
            {13, 23},

     

       342
       342
       +
            {20, ...},

     

       343
       343
       +
            {...},

     

       344
       344
       +
            ...

     

       345
       345
       +
          ])},

     

       346
       346
       +
         {"A",

     

       347
       347
       +
          MapSet.new([

     

       348
       348
       +
            {111, 103},

     

       349
       349
       +
            {107, 102},

     

       350
       350
       +
            {110, 102},

     

       351
       351
       +
            {110, 106},

     

       352
       352
       +
            {112, 103},

     

       353
       353
       +
            {114, 103},

     

       354
       354
       +
            {112, 100},

     

       355
       355
       +
            {108, 97},

     

       356
       356
       +
            {103, 96},

     

       357
       357
       +
            {109, 104},

     

       358
       358
       +
            {103, 99},

     

       359
       359
       +
            {108, 95},

     

       360
       360
       +
            {110, 104},

     

       361
       361
       +
            {113, 101},

     

       362
       362
       +
            {105, 105},

     

       363
       363
       +
            {108, 108},

     

       364
       364
       +
            {106, 105},

     

       365
       365
       +
            {111, 100},

     

       366
       366
       +
            {104, 98},

     

       367
       367
       +
            {109, 101},

     

       368
       368
       +
            {111, 104},

     

       369
       369
       +
            {107, 100},

     

       370
       370
       +
            {106, 102},

     

       371
       371
       +
            {112, 106},

     

       372
       372
       +
            {105, 95},

     

       373
       373
       +
            {104, 104},

     

       374
       374
       +
            {112, 97},

     

       375
       375
       +
            {108, 94},

     

       376
       376
       +
            {104, 97},

     

       377
       377
       +
            {111, 99},

     

       378
       378
       +
            {108, 102},

     

       379
       379
       +
            {108, 109},

     

       380
       380
       +
            {101, 97},

     

       381
       381
       +
            {104, 103},

     

       382
       382
       +
            {102, 96},

     

       383
       383
       +
            {112, 101},

     

       384
       384
       +
            {113, 97},

     

       385
       385
       +
            {100, ...},

     

       386
       386
       +
            {...},

     

       387
       387
       +
            ...

     

       388
       388
       +
          ])},

     

       389
       389
       +
         {"A",

     

       390
       390
       +
          MapSet.new([

     

       391
       391
       +
            {132, 99},

     

       392
       392
       +
            {136, 110},

     

       393
       393
       +
            {137, 104},

     

       394
       394
       +
            {139, 106},

     

       395
       395
       +
            {134, 98},

     

       396
       396
       +
            {139, 101},

     

       397
       397
       +
            {136, 102},

     

       398
       398
       +
            {139, 104},

     

       399
       399
       +
            {136, 96},

     

       400
       400
       +
            {134, 107},

     

       401
       401
       +
            {132, 100},

     

       402
       402
       +
            {138, 96},

     

       403
       403
       +
            {138, 102},

     

       404
       404
       +
            {135, 109},

     

       405
       405
       +
            {137, 107},

     

       406
       406
       +
            {133, 97},

     

       407
       407
       +
            {135, 107},

     

       408
       408
       +
            {137, 101},

     

       409
       409
       +
            {139, 97},

     

       410
       410
       +
            {137, 100},

     

       411
       411
       +
            {139, 109},

     

       412
       412
       +
            {135, 100},

     

       413
       413
       +
            {137, 97},

     

       414
       414
       +
            {132, 97},

     

       415
       415
       +
            {138, 105},

     

       416
       416
       +
            {137, 106},

     

       417
       417
       +
            {138, 99},

     

       418
       418
       +
            {136, 100},

     

       419
       419
       +
            {135, 98},

     

       420
       420
       +
            {139, 98},

     

       421
       421
       +
            {138, 103},

     

       422
       422
       +
            {138, 107},

     

       423
       423
       +
            {136, 108},

     

       424
       424
       +
            {139, 99},

     

       425
       425
       +
            {133, 96},

     

       426
       426
       +
            {139, 105},

     

       427
       427
       +
            {132, ...},

     

       428
       428
       +
            {...},

     

       429
       429
       +
            ...

     

       430
       430
       +
          ])},

     

       431
       431
       +
         {"A",

     

       432
       432
       +
          MapSet.new([

     

       433
       433
       +
            {84, 102},

     

       434
       434
       +
            {82, 100},

     

       435
       435
       +
            {86, 101},

     

       436
       436
       +
            {82, 91},

     

       437
       437
       +
            {86, 93},

     

       438
       438
       +
            {90, 93},

     

       439
       439
       +
            {88, 93},

     

       440
       440
       +
            {86, 96},

     

       441
       441
       +
            {82, 95},

     

       442
       442
       +
            {84, 93},

     

       443
       443
       +
            {85, 97},

     

       444
       444
       +
            {87, 95},

     

       445
       445
       +
            {81, 95},

     

       446
       446
       +
            {83, 100},

     

       447
       447
       +
            {87, 93},

     

       448
       448
       +
            {81, 100},

     

       449
       449
       +
            {84, 96},

     

       450
       450
       +
            {88, 95},

     

       451
       451
       +
            {81, 98},

     

       452
       452
       +
            {84, 100},

     

       453
       453
       +
            {85, 102},

     

       454
       454
       +
            {84, 91},

     

       455
       455
       +
            {82, 97},

     

       456
       456
       +
            {85, 99},

     

       457
       457
       +
            {83, 95},

     

       458
       458
       +
            {89, 96},

     

       459
       459
       +
            {88, 94},

     

       460
       460
       +
            {84, 104},

     

       461
       461
       +
            {86, 102},

     

       462
       462
       +
            {80, 92},

     

       463
       463
       +
            {89, 94},

     

       464
       464
       +
            {86, 103},

     

       465
       465
       +
            {83, 92},

     

       466
       466
       +
            {83, 96},

     

       467
       467
       +
            {82, 102},

     

       468
       468
       +
            {84, ...},

     

       469
       469
       +
            {...},

     

       470
       470
       +
            ...

     

       471
       471
       +
          ])},

     

       472
       472
       +
         {"A",

     

       473
       473
       +
          MapSet.new([

     

       474
       474
       +
            {65, 131},

     

       475
       475
       +
            {65, 129},

     

       476
       476
       +
            {74, 135},

     

       477
       477
       +
            {72, 134},

     

       478
       478
       +
            {71, 133},

     

       479
       479
       +
            {66, 130},

     

       480
       480
       +
            {73, 135},

     

       481
       481
       +
            {69, 130},

     

       482
       482
       +
            {74, 134},

     

       483
       483
       +
            {66, 132},

     

       484
       484
       +
            {68, 132},

     

       485
       485
       +
            {67, 128},

     

       486
       486
       +
            {69, 133},

     

       487
       487
       +
            {71, 132},

     

       488
       488
       +
            {70, 134},

     

       489
       489
       +
            {72, 132},

     

       490
       490
       +
            {72, 133},

     

       491
       491
       +
            {69, 132},

     

       492
       492
       +
            {71, 130},

     

       493
       493
       +
            {74, 136},

     

       494
       494
       +
            {73, 136},

     

       495
       495
       +
            {70, 128},

     

       496
       496
       +
            {68, 130},

     

       497
       497
       +
            {69, 129},

     

       498
       498
       +
            {73, 133},

     

       499
       499
       +
            {69, 131},

     

       500
       500
       +
            {70, 129},

     

       501
       501
       +
            {70, 130},

     

       502
       502
       +
            {67, 133},

     

       503
       503
       +
            {68, 131},

     

       504
       504
       +
            {68, 129},

     

       505
       505
       +
            {72, 135},

     

       506
       506
       +
            {68, 128},

     

       507
       507
       +
            {73, 134},

     

       508
       508
       +
            {66, ...},

     

       509
       509
       +
            {...},

     

       510
       510
       +
            ...

     

       511
       511
       +
          ])},

     

       512
       512
       +
         {"B", MapSet.new([{132, 12}, {132, 13}, {133, 12}, {133, 13}])},

     

       513
       513
       +
         {"B", MapSet.new([{111, 6}])},

     

       514
       514
       +
         {"B", MapSet.new([{104, 115}])},

     

       515
       515
       +
         {"B", MapSet.new([{83, 87}, {84, 87}, {84, 88}])},

     

       516
       516
       +
         {"B", MapSet.new([{83, 82}])},

     

       517
       517
       +
         {"B", MapSet.new([{71, 79}])},

     

       518
       518
       +
         {"B",

     

       519
       519
       +
          MapSet.new([

     

       520
       520
       +
            {69, 112},

     

       521
       521
       +
            {70, 109},

     

       522
       522
       +
            {70, 111},

     

       523
       523
       +
            {70, 112},

     

       524
       524
       +
            {71, 108},

     

       525
       525
       +
            {71, 109},

     

       526
       526
       +
            {71, 110},

     

       527
       527
       +
            {71, 111},

     

       528
       528
       +
            {72, 108}

     

       529
       529
       +
          ])},

     

       530
       530
       +
         {"B", MapSet.new([{67, 20}, {67, 21}, {68, 19}, {68, 20}])},

     

       531
       531
       +
         {"B", MapSet.new([{63, 100}])},

     

       532
       532
       +
         {"B", MapSet.new([{44, 121}, {44, 122}])},

     

       533
       533
       +
         {"B", MapSet.new([{41, 45}])},

     

       534
       534
       +
         {"B", MapSet.new([{30, 54}])},

     

       535
       535
       +
         {"B", MapSet.new([{18, 90}])},

     

       536
       536
       +
         {"B", MapSet.new([{10, 127}])},

     

       537
       537
       +
         {"B", MapSet.new([{9, 126}])},

     

       538
       538
       +
         {"B",

     

       539
       539
       +
          MapSet.new([

     

       540
       540
       +
            {37, 75},

     

       541
       541
       +
            {39, 77},

     

       542
       542
       +
            {42, 73},

     

       543
       543
       +
            {35, 75},

     

       544
       544
       +
            {39, 81},

     

       545
       545
       +
            {40, 75},

     

       546
       546
       +
            {41, 75},

     

       547
       547
       +
            {40, 77},

     

       548
       548
       +
            {40, 81},

     

       549
       549
       +
            {40, 76},

     

       550
       550
       +
            {32, 78},

     

       551
       551
       +
            {33, 78},

     

       552
       552
       +
            {32, 77},

     

       553
       553
       +
            {37, 80},

     

       554
       554
       +
            {35, 79},

     

       555
       555
       +
            {34, 75},

     

       556
       556
       +
            {30, 78},

     

       557
       557
       +
            {39, 76},

     

       558
       558
       +
            {34, ...},

     

       559
       559
       +
            {...},

     

       560
       560
       +
            ...

     

       561
       561
       +
          ])},

     

       562
       562
       +
         {"B", MapSet.new([{42, 69}])},

     

       563
       563
       +
         {"B",

     

       564
       564
       +
          MapSet.new([

     

       565
       565
       +
            {0, 21},

     

       566
       566
       +
            {1, 21},

     

       567
       567
       +
            {1, 22},

     

       568
       568
       +
            {2, 21},

     

       569
       569
       +
            {2, 22},

     

       570
       570
       +
            {3, 21},

     

       571
       571
       +
            {3, 22},

     

       572
       572
       +
            {3, 23},

     

       573
       573
       +
            {3, 24},

     

       574
       574
       +
            {4, 21},

     

       575
       575
       +
            {4, 22},

     

       576
       576
       +
            {4, 23},

     

       577
       577
       +
            {4, 24},

     

       578
       578
       +
            {5, 21},

     

       579
       579
       +
            {5, 22},

     

       580
       580
       +
            {5, 23},

     

       581
       581
       +
            {5, ...},

     

       582
       582
       +
            {...},

     

       583
       583
       +
            ...

     

       584
       584
       +
          ])},

     

       585
       585
       +
         {"B", MapSet.new([{100, 130}])},

     

       586
       586
       +
         {"B",

     

       587
       587
       +
          MapSet.new([

     

       588
       588
       +
            {108, 25},

     

       589
       589
       +
            {108, 21},

     

       590
       590
       +
            {104, 24},

     

       591
       591
       +
            {104, 21},

     

       592
       592
       +
            {109, 18},

     

       593
       593
       +
            {107, 25},

     

       594
       594
       +
            {107, 18},

     

       595
       595
       +
            {109, 17},

     

       596
       596
       +
            {107, 27},

     

       597
       597
       +
            {106, 22},

     

       598
       598
       +
            {113, 20},

     

       599
       599
       +
            {112, 17},

     

       600
       600
       +
            {106, 26},

     

       601
       601
       +
            {108, 24},

     

       602
       602
       +
            {105, ...},

     

       603
       603
       +
            {...},

     

       604
       604
       +
            ...

     

       605
       605
       +
          ])},

     

       606
       606
       +
         {"B",

     

       607
       607
       +
          MapSet.new([

     

       608
       608
       +
            {15, 93},

     

       609
       609
       +
            {18, 93},

     

       610
       610
       +
            {17, 93},

     

       611
       611
       +
            {19, 97},

     

       612
       612
       +
            {13, 98},

     

       613
       613
       +
            {16, 93},

     

       614
       614
       +
            {17, 97},

     

       615
       615
       +
            {13, 95},

     

       616
       616
       +
            {14, 93},

     

       617
       617
       +
            {12, 95},

     

       618
       618
       +
            {15, 98},

     

       619
       619
       +
            {15, 96},

     

       620
       620
       +
            {14, 95},

     

       621
       621
       +
            {14, ...},

     

       622
       622
       +
            {...},

     

       623
       623
       +
            ...

     

       624
       624
       +
          ])},

     

       625
       625
       +
         {"B",

     

       626
       626
       +
          MapSet.new([

     

       627
       627
       +
            {45, 19},

     

       628
       628
       +
            {53, 23},

     

       629
       629
       +
            {54, 16},

     

       630
       630
       +
            {55, 17},

     

       631
       631
       +
            {53, 19},

     

       632
       632
       +
            {55, 20},

     

       633
       633
       +
            {56, 18},

     

       634
       634
       +
            {55, 21},

     

       635
       635
       +
            {49, 20},

     

       636
       636
       +
            {56, 22},

     

       637
       637
       +
            {47, 22},

     

       638
       638
       +
            {54, 23},

     

       639
       639
       +
            {47, ...},

     

       640
       640
       +
            {...},

     

       641
       641
       +
            ...

     

       642
       642
       +
          ])},

     

       643
       643
       +
         {"B",

     

       644
       644
       +
          MapSet.new([

     

       645
       645
       +
            {98, 9},

     

       646
       646
       +
            {97, 20},

     

       647
       647
       +
            {95, 16},

     

       648
       648
       +
            {100, 18},

     

       649
       649
       +
            {94, 21},

     

       650
       650
       +
            {97, 10},

     

       651
       651
       +
            {102, 16},

     

       652
       652
       +
            {93, 17},

     

       653
       653
       +
            {98, 19},

     

       654
       654
       +
            {95, 17},

     

       655
       655
       +
            {96, 13},

     

       656
       656
       +
            {92, ...},

     

       657
       657
       +
            {...},

     

       658
       658
       +
            ...

     

       659
       659
       +
          ])},

     

       660
       660
       +
         {"B",

     

       661
       661
       +
          MapSet.new([

     

       662
       662
       +
            {58, 10},

     

       663
       663
       +
            {61, 7},

     

       664
       664
       +
            {53, 9},

     

       665
       665
       +
            {58, 8},

     

       666
       666
       +
            {55, 11},

     

       667
       667
       +
            {60, 10},

     

       668
       668
       +
            {60, 11},

     

       669
       669
       +
            {60, 12},

     

       670
       670
       +
            {61, 11},

     

       671
       671
       +
            {59, 13},

     

       672
       672
       +
            {56, ...},

     

       673
       673
       +
            {...},

     

       674
       674
       +
            ...

     

       675
       675
       +
          ])},

     

       676
       676
       +
         {"B",

     

       677
       677
       +
          MapSet.new([

     

       678
       678
       +
            {131, 24},

     

       679
       679
       +
            {129, 25},

     

       680
       680
       +
            {130, 28},

     

       681
       681
       +
            {132, 31},

     

       682
       682
       +
            {127, 22},

     

       683
       683
       +
            {132, 33},

     

       684
       684
       +
            {130, 25},

     

       685
       685
       +
            {123, 25},

     

       686
       686
       +
            {130, 27},

     

       687
       687
       +
            {126, ...},

     

       688
       688
       +
            {...},

     

       689
       689
       +
            ...

     

       690
       690
       +
          ])},

     

       691
       691
       +
         {"B", MapSet.new([{30, 42}, {31, 42}, {32, 42}])},

     

       692
       692
       +
         {"C", MapSet.new([{114, 87}, {114, 88}])},

     

       693
       693
       +
         {"C", MapSet.new([{103, 27}])},

     

       694
       694
       +
         {"C", MapSet.new([{98, 4}, {98, 5}])},

     

       695
       695
       +
         {"C", MapSet.new([{92, 104}])},

     

       696
       696
       +
         {"C", MapSet.new([{83, 33}])},

     

       697
       697
       +
         {"C", MapSet.new([{82, 87}])},

     

       698
       698
       +
         {"C", MapSet.new([{76, 32}])},

     

       699
       699
       +
         {"C", MapSet.new([{75, ...}])},

     

       700
       700
       +
         {"C", MapSet.new([{...}])},

     

       701
       701
       +
         {"C", MapSet.new([...])},

     

       702
       702
       +
         {"C", ...},

     

       703
       703
       +
         {...},

     

       704
       704
       +
         ...

     

       705
       705
       +
       ]

     

       706
       706
       +
       ```

     

       707
       707
       +
       

     

       708
       708
       +
       ## Part 1

     

       709
       709
       +
       

     

       710
       710
       +
       ```elixir

     

       711
       711
       +
       defmodule Garden.Circ do

     

       712
       712
       +
         def circumfence(set) do

     

       713
       713
       +
           {{sx, _}, {ex, _}} = Enum.min_max_by(set, &elem(&1, 0))

     

       714
       714
       +
           {{_, sy}, {_, ey}} = Enum.min_max_by(set, &elem(&1, 1))

     

       715
       715
       +
       

     

       716
       716
       +
           rows = (sx - 1)..(ex + 1)//1

     

       717
       717
       +
           cols = (sy - 1)..(ey + 1)//1

     

       718
       718
       +
       

     

       719
       719
       +
           vert =

     

       720
       720
       +
             rows

     

       721
       721
       +
             |> Enum.map(fn x -> count_flips(cols, &({x, &1} in set)) end)

     

       722
       722
       +
             |> Enum.sum()

     

       723
       723
       +
       

     

       724
       724
       +
           hori =

     

       725
       725
       +
             cols

     

       726
       726
       +
             |> Enum.map(fn y -> count_flips(rows, &({&1, y} in set)) end)

     

       727
       727
       +
             |> Enum.sum()

     

       728
       728
       +
       

     

       729
       729
       +
           vert + hori

     

       730
       730
       +
         end

     

       731
       731
       +
         

     

       732
       732
       +
         defp count_flips(enum, init \\ false, func) do

     

       733
       733
       +
           Enum.reduce(enum, {0, init}, fn elem, {count, last} ->

     

       734
       734
       +
             curr = func.(elem)

     

       735
       735
       +
             {count + Garden.as_int(last != curr), curr}

     

       736
       736
       +
           end)

     

       737
       737
       +
           |> elem(0)

     

       738
       738
       +
         end

     

       739
       739
       +
       end

     

       740
       740
       +
       ```

     

       741
       741
       +
       

     

       742
       742
       +
       <!-- livebook:{"output":true} -->

     

       743
       743
       +
       

     

       744
       744
       +
       ```

     

       745
       745
       +
       {:module, Garden.Circ, <<70, 79, 82, 49, 0, 0, 15, ...>>, {:count_flips, 3}}

     

       746
       746
       +
       ```

     

       747
       747
       +
       

     

       748
       748
       +
       ```elixir

     

       749
       749
       +
       plots

     

       750
       750
       +
       |> Enum.map(fn {_, points} ->

     

       751
       751
       +
         Garden.Circ.circumfence(points) * MapSet.size(points)

     

       752
       752
       +
       end)

     

       753
       753
       +
       |> Enum.sum()

     

       754
       754
       +
       ```

     

       755
       755
       +
       

     

       756
       756
       +
       <!-- livebook:{"output":true} -->

     

       757
       757
       +
       

     

       758
       758
       +
       ```

     

       759
       759
       +
       1464678

     

       760
       760
       +
       ```

     

       761
       761
       +
       

     

       762
       762
       +
       ## Part 2

     

       763
       763
       +
       

     

       764
       764
       +
       ```elixir

     

       765
       765
       +
       defmodule Garden.Sides do

     

       766
       766
       +
         def sides(set) do

     

       767
       767
       +
           xy = do_count(set, 0, 1)

     

       768
       768
       +
           yx = do_count(set, 1, 0)

     

       769
       769
       +
       

     

       770
       770
       +
           xy + yx

     

       771
       771
       +
         end

     

       772
       772
       +
       

     

       773
       773
       +
         defp do_count(set, a, b) do

     

       774
       774
       +
           set

     

       775
       775
       +
           |> Enum.group_by(&elem(&1, a), &elem(&1, b))

     

       776
       776
       +
           |> Enum.sort()

     

       777
       777
       +
           |> Enum.map(fn {_, row} -> row |> Enum.map(&(&1..&1)) |> RangeSet.new() end)

     

       778
       778
       +
           |> Enum.chunk_every(2, 1, [RangeSet.new()])

     

       779
       779
       +
           |> Enum.flat_map(fn [top, bot] ->

     

       780
       780
       +
             top.ranges

     

       781
       781
       +
             |> Enum.map(fn a..b//_ ->

     

       782
       782
       +
               Garden.as_int(not Enum.any?(bot.ranges, &(a == &1.first))) +

     

       783
       783
       +
                 Garden.as_int(not Enum.any?(bot.ranges, &(b == &1.last)))

     

       784
       784
       +
             end)

     

       785
       785
       +
           end)

     

       786
       786
       +
           |> Enum.sum()

     

       787
       787
       +
         end

     

       788
       788
       +
       end

     

       789
       789
       +
       ```

     

       790
       790
       +
       

     

       791
       791
       +
       <!-- livebook:{"output":true} -->

     

       792
       792
       +
       

     

       793
       793
       +
       ```

     

       794
       794
       +
       {:module, Garden.Sides, <<70, 79, 82, 49, 0, 0, 16, ...>>, {:do_count, 3}}

     

       795
       795
       +
       ```

     

       796
       796
       +
       

     

       797
       797
       +
       ```elixir

     

       798
       798
       +
       plots

     

       799
       799
       +
       |> Enum.map(fn {_, plot} ->

     

       800
       800
       +
         Garden.Sides.sides(plot) * MapSet.size(plot)

     

       801
       801
       +
       end)

     

       802
       802
       +
       |> Enum.sum()

     

       803
       803
       +
       ```

     

       804
       804
       +
       

     

       805
       805
       +
       <!-- livebook:{"output":true} -->

     

       806
       806
       +
       

     

       807
       807
       +
       ```

     

       808
       808
       +
       877492

     

       809
       809
       +
       ```

     

       810
       810
       +
       

     

       811
       811
       +
       <!-- livebook:{"offset":17848,"stamp":{"token":"XCP.d5P0-cESwFZ7qUYI4K40J_3AxksZ7WIqnIE6sn4smJvJahembJKNW-3db5gLxIgp_FEyn1pBBioGJSDsU7MO2fi1HjFgxeFNU0dLXi9Z4tf68Ey8dtld73d7SrSGlcv2DDM","version":2}} -->

+272

2024/day13.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 13

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMyIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "13", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "Button A: X+22, Y+88\nButton B: X+90, Y+28\nPrize: X=6496, Y=3076\n\nButton A: X+54, Y+14\nButton B: X+14, Y+44\nPrize: X=8084, Y=1284\n\nButton A: X+96, Y+15\nButton B: X+55, Y+63\nPrize: X=5535, Y=3966\n\nButton A: X+17, Y+42\nButton B: X+40, Y+25\nPrize: X=12176, Y=3136\n\nButton A: X+87, Y+31\nButton B: X+15, Y+36\nPrize: X=6672, Y=2500\n\nButton A: X+59, Y+27\nButton B: X+21, Y+56\nPrize: X=1475, Y=15098\n\nButton A: X+39, Y+51\nButton B: X+98, Y+14\nPrize: X=7890, Y=3126\n\nButton A: X+23, Y+37\nButton B: X+35, Y+14\nPrize: X=16537, Y=6184\n\nButton A: X+21, Y+89\nButton B: X+74, Y+23\nPrize: X=2407, Y=8748\n\nButton A: X+47, Y+17\nButton B: X+35, Y+59\nPrize: X=17994, Y=16242\n\nButton A: X+14, Y+45\nButton B: X+52, Y+16\nPrize: X=18768, Y=3912\n\nButton A: X+29, Y+45\nButton B: X+85, Y+11\nPrize: X=3149, Y=4161\n\nButton A: X+81, Y+95\nButton B: X+67, Y+12\nPrize: X=5489, Y=2110\n\nButton A: X+48, Y+58\nButton B: X+86, Y+22\nPrize: X=4802, Y=2280\n\nButton A: X+27, Y+59\nButton B: X+47, Y+15\nPrize: X=2602, Y=2090\n\nButton A: X+39, Y+87\nButton B: X+94, Y+38\nPrize: X=8830, Y=6134\n\nButton A: X+23, Y+61\nButton B: X+82, Y+16\nPrize: X=8405, Y=3957\n\nButton A: X+54, Y+14\nButton B: X+24, Y+63\nPrize: X=894, Y=1708\n\nButton A: X+26, Y+14\nButton B: X+18, Y+35\nPrize: X=5510, Y=12541\n\nButton A: X+65, Y+55\nButton B: X+21, Y+69\nPrize: X=430, Y=620\n\nButton A: X+11, Y+62\nButton B: X+50, Y+11\nPrize: X=11414, Y=3683\n\nButton A: X+21, Y+54\nButton B: X+93, Y+22\nPrize: X=7683, Y=5642\n\nButton A: X+20, Y+95\nButton B: X+52, Y+29\nPrize: X=5580, Y=10155\n\nButton A: X+37, Y+13\nButton B: X+11, Y+66\nPrize: X=18250, Y=14983\n\nButton A: X+54, Y+28\nButton B: X+37, Y+58\nPrize: X=17939, Y=14902\n\nButton A: X+87, Y+65\nButton B: X+11, Y+79\nPrize: X=3765, Y=4087\n\nButton A: X+74, Y+30\nButton B: X+16, Y+59\nPrize: X=9858, Y=8342\n\nButton A: X+74, Y+31\nButton B: X+17, Y+59\nPrize: X=14764, Y=6598\n\nButton A: X+12, Y+95\nButton B: X+27, Y+33\nPrize: X=945, Y=3324\n\nButton A: X+21, Y+36\nButton B: X+34, Y+14\nPrize: X=7247, Y=5012\n\nButton A: X+48, Y+62\nButton B: X+90, Y+29\nPrize: X=9150, Y=5973\n\nButton A: X+93, Y+43\nButton B: X+49, Y+91\nPrize: X=7090, Y=6422\n\nButton A: X+28, Y+70\nButton B: X+68, Y+21\nPrize: X=17176, Y=3693\n\nButton A: X+33, Y+16\nButton B: X+27, Y+51\nPrize: X=1884, Y=2771\n\nButton A: X+11, Y+43\nButton B: X+51, Y+19\nPrize: X=4114, Y=10066\n\nButton A: X+26, Y+70\nButton B: X+87, Y+46\nPrize: X=3532, Y=6874\n\nButton A: X+22, Y+35\nButton B: X+38, Y+13\nPrize: X=7508, Y=16592\n\nButton A: X+33, Y+16\nButton B: X+48, Y+72\nPrize: X=12065, Y=15896\n\nButton A: X+67, Y+25\nButton B: X+14, Y+55\nPrize: X=4093, Y=10275\n\nButton A: X+36, Y+17\nButton B: X+43, Y+77\nPrize: X=3253, Y=1933\n\nButton A: X+84, Y+24\nButton B: X+42, Y+69\nPrize: X=8862, Y=4869\n\nButton A: X+70, Y+16\nButton B: X+17, Y+68\nPrize: X=5690, Y=3224\n\nButton A: X+58, Y+27\nButton B: X+44, Y+92\nPrize: X=1890, Y=1595\n\nButton A: X+64, Y+30\nButton B: X+29, Y+57\nPrize: X=15004, Y=15224\n\nButton A: X+13, Y+90\nButton B: X+64, Y+33\nPrize: X=6560, Y=6048\n\nButton A: X+37, Y+91\nButton B: X+64, Y+49\nPrize: X=5214, Y=8379\n\nButton A: X+12, Y+80\nButton B: X+75, Y+25\nPrize: X=6684, Y=8460\n\nButton A: X+27, Y+53\nButton B: X+53, Y+30\nPrize: X=4897, Y=14148\n\nButton A: X+41, Y+11\nButton B: X+39, Y+72\nPrize: X=2818, Y=493\n\nButton A: X+74, Y+45\nButton B: X+14, Y+35\nPrize: X=8996, Y=13510\n\nButton A: X+11, Y+36\nButton B: X+86, Y+58\nPrize: X=18273, Y=14722\n\nButton A: X+99, Y+72\nButton B: X+11, Y+39\nPrize: X=2530, Y=3390\n\nButton A: X+55, Y+17\nButton B: X+22, Y+80\nPrize: X=3652, Y=6326\n\nButton A: X+11, Y+17\nButton B: X+76, Y+16\nPrize: X=5480, Y=1976\n\nButton A: X+18, Y+73\nButton B: X+28, Y+22\nPrize: X=3222, Y=4827\n\nButton A: X+14, Y+46\nButton B: X+33, Y+29\nPrize: X=2212, Y=3932\n\nButton A: X+11, Y+14\nButton B: X+80, Y+28\nPrize: X=4187, Y=2450\n\nButton A: X+28, Y+70\nButton B: X+78, Y+25\nPrize: X=2220, Y=1810\n\nButton A: X+53, Y+19\nButton B: X+73, Y+91\nPrize: X=4514, Y=2850\n\nButton A: X+21, Y+54\nButton B: X+54, Y+25\nPrize: X=5609, Y=7594\n\nButton A: X+79, Y+15\nButton B: X+16, Y+80\nPrize: X=14993, Y=17105\n\nButton A: X+20, Y+59\nButton B: X+35, Y+17\nPrize: X=10820, Y=1709\n\nButton A: X+96, Y+22\nButton B: X+24, Y+43\n" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       #puzzle_input =

     

       27
       27
       +
         """

     

       28
       28
       +
       Button A: X+94, Y+34

     

       29
       29
       +
       Button B: X+22, Y+67

     

       30
       30
       +
       Prize: X=8400, Y=5400

     

       31
       31
       +
       

     

       32
       32
       +
       Button A: X+26, Y+66

     

       33
       33
       +
       Button B: X+67, Y+21

     

       34
       34
       +
       Prize: X=12748, Y=12176

     

       35
       35
       +
       

     

       36
       36
       +
       Button A: X+17, Y+86

     

       37
       37
       +
       Button B: X+84, Y+37

     

       38
       38
       +
       Prize: X=7870, Y=6450

     

       39
       39
       +
       

     

       40
       40
       +
       Button A: X+69, Y+23

     

       41
       41
       +
       Button B: X+27, Y+71

     

       42
       42
       +
       Prize: X=18641, Y=10279

     

       43
       43
       +
         """

     

       44
       44
       +
       ```

     

       45
       45
       +
       

     

       46
       46
       +
       <!-- livebook:{"output":true} -->

     

       47
       47
       +
       

     

       48
       48
       +
       ```

     

       49
       49
       +
       warning: outdented heredoc line. The contents inside the heredoc should be indented at the same level as the closing """. The following is forbidden:

     

       50
       50
       +
       

     

       51
       51
       +
           def text do

     

       52
       52
       +
             """

     

       53
       53
       +
           contents

     

       54
       54
       +
             """

     

       55
       55
       +
           end

     

       56
       56
       +
       

     

       57
       57
       +
       Instead make sure the contents are indented as much as the heredoc closing:

     

       58
       58
       +
       

     

       59
       59
       +
           def text do

     

       60
       60
       +
             """

     

       61
       61
       +
             contents

     

       62
       62
       +
             """

     

       63
       63
       +
           end

     

       64
       64
       +
       

     

       65
       65
       +
       The current heredoc line is indented too little

     

       66
       66
       +
       └─ Workspace/hauleth/advent-of-code/2024/day13.livemd#cell:b6uoz4dag7jywljr:3:3

     

       67
       67
       +
       

     

       68
       68
       +
       ```

     

       69
       69
       +
       

     

       70
       70
       +
       <!-- livebook:{"output":true} -->

     

       71
       71
       +
       

     

       72
       72
       +
       ```

     

       73
       73
       +
       "Button A: X+94, Y+34\nButton B: X+22, Y+67\nPrize: X=8400, Y=5400\n\nButton A: X+26, Y+66\nButton B: X+67, Y+21\nPrize: X=12748, Y=12176\n\nButton A: X+17, Y+86\nButton B: X+84, Y+37\nPrize: X=7870, Y=6450\n\nButton A: X+69, Y+23\nButton B: X+27, Y+71\nPrize: X=18641, Y=10279\n"

     

       74
       74
       +
       ```

     

       75
       75
       +
       

     

       76
       76
       +
       ```elixir

     

       77
       77
       +
       games =

     

       78
       78
       +
         puzzle_input

     

       79
       79
       +
         |> String.split("\n\n", trim: true)

     

       80
       80
       +
         |> Enum.map(fn game ->

     

       81
       81
       +
           [

     

       82
       82
       +
             "Button A: X+" <> <<ax::2-binary>> <> ", Y+" <> <<ay::2-binary>>,

     

       83
       83
       +
             "Button B: X+" <> <<bx::2-binary>> <> ", Y+" <> <<by::2-binary>>,

     

       84
       84
       +
             "Prize: " <> prize_pos

     

       85
       85
       +
           ] = String.split(game, "\n", trim: true)

     

       86
       86
       +
       

     

       87
       87
       +
           ["X=" <> px, "Y=" <> py] = String.split(prize_pos, ", ")

     

       88
       88
       +
       

     

       89
       89
       +
           %{

     

       90
       90
       +
             btn_a: {String.to_integer(ax), String.to_integer(ay)},

     

       91
       91
       +
             btn_b: {String.to_integer(bx), String.to_integer(by)},

     

       92
       92
       +
             prize: {String.to_integer(px), String.to_integer(py)}

     

       93
       93
       +
           }

     

       94
       94
       +
         end)

     

       95
       95
       +
       ```

     

       96
       96
       +
       

     

       97
       97
       +
       <!-- livebook:{"output":true} -->

     

       98
       98
       +
       

     

       99
       99
       +
       ```

     

       100
       100
       +
       [

     

       101
       101
       +
         %{btn_a: {22, 88}, btn_b: {90, 28}, prize: {6496, 3076}},

     

       102
       102
       +
         %{btn_a: {54, 14}, btn_b: {14, 44}, prize: {8084, 1284}},

     

       103
       103
       +
         %{btn_a: {96, 15}, btn_b: {55, 63}, prize: {5535, 3966}},

     

       104
       104
       +
         %{btn_a: {17, 42}, btn_b: {40, 25}, prize: {12176, 3136}},

     

       105
       105
       +
         %{btn_a: {87, 31}, btn_b: {15, 36}, prize: {6672, 2500}},

     

       106
       106
       +
         %{btn_a: {59, 27}, btn_b: {21, 56}, prize: {1475, 15098}},

     

       107
       107
       +
         %{btn_a: {39, 51}, btn_b: {98, 14}, prize: {7890, 3126}},

     

       108
       108
       +
         %{btn_a: {23, 37}, btn_b: {35, 14}, prize: {16537, 6184}},

     

       109
       109
       +
         %{btn_a: {21, 89}, btn_b: {74, 23}, prize: {2407, 8748}},

     

       110
       110
       +
         %{btn_a: {47, 17}, btn_b: {35, 59}, prize: {17994, 16242}},

     

       111
       111
       +
         %{btn_a: {14, 45}, btn_b: {52, 16}, prize: {18768, 3912}},

     

       112
       112
       +
         %{btn_a: {29, 45}, btn_b: {85, 11}, prize: {3149, 4161}},

     

       113
       113
       +
         %{btn_a: {81, 95}, btn_b: {67, 12}, prize: {5489, 2110}},

     

       114
       114
       +
         %{btn_a: {48, 58}, btn_b: {86, 22}, prize: {4802, 2280}},

     

       115
       115
       +
         %{btn_a: {27, 59}, btn_b: {47, 15}, prize: {2602, 2090}},

     

       116
       116
       +
         %{btn_a: {39, 87}, btn_b: {94, 38}, prize: {8830, 6134}},

     

       117
       117
       +
         %{btn_a: {23, 61}, btn_b: {82, 16}, prize: {8405, 3957}},

     

       118
       118
       +
         %{btn_a: {54, 14}, btn_b: {24, 63}, prize: {894, 1708}},

     

       119
       119
       +
         %{btn_a: {26, 14}, btn_b: {18, 35}, prize: {5510, 12541}},

     

       120
       120
       +
         %{btn_a: {65, 55}, btn_b: {21, 69}, prize: {430, 620}},

     

       121
       121
       +
         %{btn_a: {11, 62}, btn_b: {50, 11}, prize: {11414, 3683}},

     

       122
       122
       +
         %{btn_a: {21, 54}, btn_b: {93, 22}, prize: {7683, 5642}},

     

       123
       123
       +
         %{btn_a: {20, 95}, btn_b: {52, 29}, prize: {5580, 10155}},

     

       124
       124
       +
         %{btn_a: {37, 13}, btn_b: {11, 66}, prize: {18250, 14983}},

     

       125
       125
       +
         %{btn_a: {54, 28}, btn_b: {37, 58}, prize: {17939, 14902}},

     

       126
       126
       +
         %{btn_a: {87, 65}, btn_b: {11, 79}, prize: {3765, 4087}},

     

       127
       127
       +
         %{btn_a: {74, 30}, btn_b: {16, 59}, prize: {9858, 8342}},

     

       128
       128
       +
         %{btn_a: {74, 31}, btn_b: {17, 59}, prize: {14764, 6598}},

     

       129
       129
       +
         %{btn_a: {12, 95}, btn_b: {27, 33}, prize: {945, 3324}},

     

       130
       130
       +
         %{btn_a: {21, 36}, btn_b: {34, 14}, prize: {7247, 5012}},

     

       131
       131
       +
         %{btn_a: {48, 62}, btn_b: {90, 29}, prize: {9150, 5973}},

     

       132
       132
       +
         %{btn_a: {93, 43}, btn_b: {49, 91}, prize: {7090, 6422}},

     

       133
       133
       +
         %{btn_a: {28, 70}, btn_b: {68, 21}, prize: {17176, 3693}},

     

       134
       134
       +
         %{btn_a: {33, 16}, btn_b: {27, 51}, prize: {1884, 2771}},

     

       135
       135
       +
         %{btn_a: {11, 43}, btn_b: {51, 19}, prize: {4114, 10066}},

     

       136
       136
       +
         %{btn_a: {26, 70}, btn_b: {87, 46}, prize: {3532, 6874}},

     

       137
       137
       +
         %{btn_a: {22, 35}, btn_b: {38, 13}, prize: {7508, 16592}},

     

       138
       138
       +
         %{btn_a: {33, 16}, btn_b: {48, 72}, prize: {12065, 15896}},

     

       139
       139
       +
         %{btn_a: {67, 25}, btn_b: {14, 55}, prize: {4093, 10275}},

     

       140
       140
       +
         %{btn_a: {36, 17}, btn_b: {43, 77}, prize: {3253, 1933}},

     

       141
       141
       +
         %{btn_a: {84, 24}, btn_b: {42, 69}, prize: {8862, 4869}},

     

       142
       142
       +
         %{btn_a: {70, 16}, btn_b: {17, 68}, prize: {5690, 3224}},

     

       143
       143
       +
         %{btn_a: {58, 27}, btn_b: {44, 92}, prize: {1890, 1595}},

     

       144
       144
       +
         %{btn_a: {64, 30}, btn_b: {29, 57}, prize: {15004, 15224}},

     

       145
       145
       +
         %{btn_a: {13, 90}, btn_b: {64, 33}, prize: {6560, 6048}},

     

       146
       146
       +
         %{btn_a: {37, 91}, btn_b: {64, 49}, prize: {5214, ...}},

     

       147
       147
       +
         %{btn_a: {12, 80}, btn_b: {75, ...}, prize: {...}},

     

       148
       148
       +
         %{btn_a: {27, ...}, btn_b: {...}, ...},

     

       149
       149
       +
         %{btn_a: {...}, ...},

     

       150
       150
       +
         %{...},

     

       151
       151
       +
         ...

     

       152
       152
       +
       ]

     

       153
       153
       +
       ```

     

       154
       154
       +
       

     

       155
       155
       +
       Yay, matrices again. We need to solve linear equations in form of:

     

       156
       156
       +
       

     

       157
       157
       +
       $$

     

       158
       158
       +
       \begin{cases}

     

       159
       159
       +
       a_x x & + & b_x y & = & p_x \\

     

       160
       160
       +
       a_y x & + & b_x y & = & p_y

     

       161
       161
       +
       \end{cases}

     

       162
       162
       +
       $$

     

       163
       163
       +
       

     

       164
       164
       +
       So we need to solve:

     

       165
       165
       +
       

     

       166
       166
       +
       $$

     

       167
       167
       +
       \begin{bmatrix}

     

       168
       168
       +
       a_x & b_x \\

     

       169
       169
       +
       a_y & b_y

     

       170
       170
       +
       \end{bmatrix}

     

       171
       171
       +
       \begin{bmatrix}

     

       172
       172
       +
       x \\

     

       173
       173
       +
       y

     

       174
       174
       +
       \end{bmatrix}

     

       175
       175
       +
       = \begin{bmatrix}

     

       176
       176
       +
       p_x \\

     

       177
       177
       +
       p_y

     

       178
       178
       +
       \end{bmatrix}

     

       179
       179
       +
       $$

     

       180
       180
       +
       

     

       181
       181
       +
       For each game. So we can use [Cramer's Rule](https://en.wikipedia.org/wiki/Cramer%27s_rule).

     

       182
       182
       +
       

     

       183
       183
       +
       $$

     

       184
       184
       +
       \begin{gather*}

     

       185
       185
       +
       x = \frac{\text{det}(A_x)}{\text{det}(A)} \\

     

       186
       186
       +
       y = \frac{\text{det}(A_y)}{\text{det}(A)}

     

       187
       187
       +
       \end{gather*}

     

       188
       188
       +
       $$

     

       189
       189
       +
       

     

       190
       190
       +
       Assuming that $\text{det}(A) \ne 0$ (otherwise there will be no solution). In case of $2\times2$ matrices determinant is simple to compute:

     

       191
       191
       +
       

     

       192
       192
       +
       $$

     

       193
       193
       +
       \text{det}

     

       194
       194
       +
       \begin{vmatrix}

     

       195
       195
       +
       a & b \\

     

       196
       196
       +
       c & d

     

       197
       197
       +
       \end{vmatrix}

     

       198
       198
       +
       = ad - bc

     

       199
       199
       +
       $$

     

       200
       200
       +
       

     

       201
       201
       +
       So in the end we need to compute:

     

       202
       202
       +
       

     

       203
       203
       +
       $$

     

       204
       204
       +
       \begin{gather*}

     

       205
       205
       +
       x = \frac{p_x b_y - b_x p_y}{a_x b_y - b_x a_y} \\

     

       206
       206
       +
       y = \frac{a_x p_y - p_x a_y}{a_x b_y - b_x a_y}

     

       207
       207
       +
       \end{gather*}

     

       208
       208
       +
       $$

     

       209
       209
       +
       

     

       210
       210
       +
       And reject cases where $x$ or $y$ is non-integer value.

     

       211
       211
       +
       

     

       212
       212
       +
       ```elixir

     

       213
       213
       +
       defmodule Game do

     

       214
       214
       +
         def solve(%{btn_a: {ax, ay}, btn_b: {bx, by}, prize: {px, py}}) do

     

       215
       215
       +
           det_a = ax * by - bx * ay

     

       216
       216
       +
           det_x = px * by - bx * py

     

       217
       217
       +
           det_y = ax * py - px * ay

     

       218
       218
       +
           

     

       219
       219
       +
           if rem(det_x, det_a) == 0 do

     

       220
       220
       +
             {div(det_x, det_a), div(det_y, det_a)}

     

       221
       221
       +
           end

     

       222
       222
       +
         end

     

       223
       223
       +
       end

     

       224
       224
       +
       ```

     

       225
       225
       +
       

     

       226
       226
       +
       <!-- livebook:{"output":true} -->

     

       227
       227
       +
       

     

       228
       228
       +
       ```

     

       229
       229
       +
       {:module, Game, <<70, 79, 82, 49, 0, 0, 8, ...>>, {:solve, 1}}

     

       230
       230
       +
       ```

     

       231
       231
       +
       

     

       232
       232
       +
       ## Part 1

     

       233
       233
       +
       

     

       234
       234
       +
       ```elixir

     

       235
       235
       +
       games

     

       236
       236
       +
       |> Enum.map(&Game.solve/1)

     

       237
       237
       +
       |> Enum.map(fn

     

       238
       238
       +
         nil -> 0

     

       239
       239
       +
         {a, b} -> a * 3 + b * 1

     

       240
       240
       +
       end)

     

       241
       241
       +
       |> Enum.sum()

     

       242
       242
       +
       ```

     

       243
       243
       +
       

     

       244
       244
       +
       <!-- livebook:{"output":true} -->

     

       245
       245
       +
       

     

       246
       246
       +
       ```

     

       247
       247
       +
       31897

     

       248
       248
       +
       ```

     

       249
       249
       +
       

     

       250
       250
       +
       ## Part 2

     

       251
       251
       +
       

     

       252
       252
       +
       ```elixir

     

       253
       253
       +
       games

     

       254
       254
       +
       |> Enum.map(fn %{prize: {px, py}} = game ->

     

       255
       255
       +
         add = 10_000_000_000_000

     

       256
       256
       +
         %{game | prize: {px + add, py + add}}

     

       257
       257
       +
       end)

     

       258
       258
       +
       |> Enum.map(&Game.solve/1)

     

       259
       259
       +
       |> Enum.map(fn

     

       260
       260
       +
         nil -> 0

     

       261
       261
       +
         {a, b} -> a * 3 + b * 1

     

       262
       262
       +
       end)

     

       263
       263
       +
       |> Enum.sum()

     

       264
       264
       +
       ```

     

       265
       265
       +
       

     

       266
       266
       +
       <!-- livebook:{"output":true} -->

     

       267
       267
       +
       

     

       268
       268
       +
       ```

     

       269
       269
       +
       87596249540359

     

       270
       270
       +
       ```

     

       271
       271
       +
       

     

       272
       272
       +
       <!-- livebook:{"offset":11449,"stamp":{"token":"XCP.AhVykQ8wyKxhTI29dXZZ0BnWEqWCuVGz8E2TRFpScgbUfqJJtY47yrvU9g9OzcejZVc8LbU3ak4YrgSGy5A5XeARPC3qt5fGPV4K9PYS3YabI7-q8rCKi8R6ZpGBpmZeDNQ","version":2}} -->

+219

2024/day14.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 14

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, :image])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxNCIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "14", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "p=49,14 v=-82,-41\np=27,80 v=67,31\np=76,93 v=-15,-66\np=90,62 v=-84,86\np=62,86 v=46,20\np=7,72 v=25,26\np=30,32 v=-92,60\np=91,40 v=6,1\np=50,58 v=57,-21\np=71,79 v=-3,58\np=84,44 v=36,-59\np=87,12 v=-62,-95\np=69,46 v=76,39\np=50,51 v=-26,-64\np=41,58 v=30,5\np=80,97 v=-13,9\np=52,84 v=98,-50\np=52,32 v=64,39\np=52,91 v=61,20\np=31,22 v=49,45\np=85,73 v=-43,32\np=77,15 v=20,-52\np=17,10 v=74,-3\np=88,92 v=-54,26\np=20,46 v=31,-63\np=42,49 v=-26,44\np=3,101 v=40,-95\np=78,77 v=-17,48\np=10,88 v=-88,55\np=100,68 v=74,76\np=42,11 v=-97,-25\np=88,57 v=-37,93\np=11,36 v=-33,54\np=88,61 v=-58,43\np=66,47 v=-55,82\np=11,52 v=52,-60\np=9,48 v=41,-64\np=70,57 v=61,27\np=22,80 v=11,11\np=73,11 v=65,56\np=79,84 v=-28,41\np=50,79 v=-93,-12\np=55,35 v=23,-64\np=48,26 v=45,29\np=38,23 v=-86,-54\np=71,48 v=-21,6\np=60,98 v=28,-54\np=75,70 v=59,7\np=24,71 v=-20,-46\np=55,88 v=79,-23\np=13,48 v=44,49\np=37,73 v=-86,-99\np=82,12 v=-26,80\np=13,16 v=-8,30\np=86,34 v=84,99\np=45,90 v=-31,68\np=23,93 v=44,8\np=3,52 v=-65,-54\np=64,7 v=16,-30\np=97,88 v=-67,-39\np=58,87 v=72,42\np=8,70 v=-27,5\np=25,67 v=99,22\np=48,92 v=19,31\np=23,46 v=-16,-76\np=13,101 v=70,13\np=55,4 v=-25,-39\np=44,10 v=10,-59\np=56,2 v=83,67\np=90,83 v=28,42\np=28,84 v=7,-12\np=49,87 v=-7,-50\np=11,56 v=-76,87\np=27,72 v=46,-28\np=76,43 v=-59,32\np=19,50 v=80,62\np=12,1 v=44,-84\np=53,29 v=83,61\np=57,12 v=-63,-90\np=67,39 v=38,71\np=38,78 v=86,26\np=14,19 v=-72,-85\np=75,9 v=42,-43\np=89,33 v=65,-43\np=77,21 v=-64,54\np=32,72 v=-45,-71\np=9,21 v=55,-4\np=22,49 v=70,-71\np=86,73 v=-35,-7\np=32,5 v=-41,-62\np=14,51 v=89,-92\np=71,34 v=24,-69\np=87,18 v=69,-10\np=58,67 v=4,-28\np=22,75 v=15,26\np=73,14 v=-77,24\np=2,26 v=-12,91\np=53,3 v=38,-57\np=49,35 v=-37,-59\np=25,87 v=52,-83\np=47,74 v=46,-22\np=70,22 v=-81,24\np=46,57 v=23,-76\np=59,96 v=27,-40\np=72,77 v=99,28\np=66,89 v=61,-67\np=46,43 v=70,-23\np=30,55 v=-67,48\np=8,75 v=89,-17\np=15,29 v=-86,-3\np=53,2 v=38,-56\np=6,90 v=55,-83\np=44,83 v=8,-50\np=2,56 v=-54,-43\np=30,13 v=19,-62\np=21,97 v=-78,-46\np=13,53 v=70,22\np=2,5 v=59,56\np=2,48 v=18,50\np=81,94 v=92,57\np=1,1 v=6,-59\np=99,61 v=-65,-76\np=99,95 v=-24,35\np=17,53 v=-84,19\np=33,77 v=-4,53\np=100,32 v=-3,-43\np=60,74 v=-10,97\np=23,54 v=-57,-75\np=56,69 v=27,21\np=58,100 v=-51,44\np=43,77 v=-41,-93\np=75,3 v=80,13\np=66,32 v=72,34\np=67,67 v=-32,69\np=80,80 v=-23,-3\np=62,23 v=-4,48\np=77,0 v=87,30\np=2,96 v=-35,-73\np=15,4 v=4,-38\np=92,56 v=-54,-16\np=90,46 v=26,-16\np=75,2 v=1,67\np=59,71 v=-59,-33\np=79,21 v=-62,24\np=34,99 v=45,14\np=49,18 v=-37,-76\np=63,26 v=79,-41\np=97,54 v=-80,71\np=66,18 v=69,-30\np=14,25 v=74,-90\np=9,95 v=-87,96\np=24,39 v=-8,83\np=32,98 v=-75,79\np=36,50 v=-23,-92\np=97,36 v=-73,86\np=66,36 v=23,-53\np=84,3 v=2,95\np=89,73 v=48,26\np=3,94 v=-46,68\np=61,75 v=-52,-98\np=51,36 v=8,50\np=70,48 v=80,-2\np=32,39 v=-54,4\np=73,85 v=-92,-72\np=22,70 v=-12,38\np=92,48 v=-92,93\np=100,79 v=-76,-12\np=1,52 v=-43,65\np=22,98 v=78,52\np=35,76 v=-97,48\np=52,14 v=-48,-74\np=7,55 v=29,98\np=79,40 v=-2,-38\np=90,91 v=57,-72\np=60,3 v=-14,-94\np=34,69 v=-56,32\np=63,19 v=-44,24\np=48,71 v=-18,-98\np=90,42 v=-87,9\np=73,59 v=27,-28\np=30,66 v=18,-48\np=9,54 v=-79,-43\np=57,73 v=-73,-34\np=75,93 v=-39,60\np=31,75 v=-98,86\np=93,86 v=-95,-45\np=64,33 v=33,4\np=62,27 v=12,46\np=76,93 v=91,58\np=92,23 v=-13,29\np=54,93 v=69,51\np=19,53 v=59,-16\np=78,90 v=84,-7\np=17,93 v=33,25\np=100,73 v=5,59\np=74,39 v=80,28\np=88,4 v=84,19\np=63,98 v=-65,-2\np=81,98 v=32,4\np=64,89 v=-7,9\np=88,3 v=-35,9\np=77,14 v=-62,-79\np=15,15 v=18,-41\np=40,4 v=41,-24\np=14,68 v=89,-98\np=77,71 v=-14,97\np=69,28 v=1,-9\np=16,102 v=-87,52\np=26,20 v=-62,15\np=100,25 v=28,-37\np=22,63 v=93,-5\np=9,47 v=77,-47\np=78,36 v=76,-95\np=41,84 v=52,63\np=14,6 v=30,-88\np=99,72 v=59,42\np=72,45 v=7,-21\np=99,71 v=-20,-98\np=30,40 v=-6,82\np=75,50 v=-99,97\np=91,80 v=8,44\np=7,44 v=52,-91\np=96,12 v=-50,-74\np=72,48 v=-88,-33\np=21,7 v=-29,-3\np=96,38 v=2,-48\np=33,22 v=86,-36\np=79,84 v=-36,-77\np=87,65 v=2,48\np=46,42 v=98,-11\np=60,79 v=80,-27\np=95,3 v=-2,-94\np=94,75 v=88,-29\np=16,66 v=-24,48\np=83,51 v=-24,-64\np=54,94 v=-10,-7\np=0,96 v=-8,-96\np=4,50 v=-31,71\np=21,98 v=-66,-4\np=50,85 v=-48,69\np=71,14 v=5,67\np=19,56 v=71,6\np=18,43 v=-16,-49\np=11,25 v=18,45\np=38,90 v=-52,-34\np=50,9 v=-89,73\np=15,23 v=" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       robots =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.map(fn row ->

     

       30
       30
       +
           ["p=" <> pos, "v=" <> v] = String.split(row, " ")

     

       31
       31
       +
       

     

       32
       32
       +
           pos = pos |> String.split(",") |> Enum.map(&String.to_integer/1) |> List.to_tuple()

     

       33
       33
       +
           v = v |> String.split(",") |> Enum.map(&String.to_integer/1) |> List.to_tuple()

     

       34
       34
       +
       

     

       35
       35
       +
           %{pos: pos, v: v}

     

       36
       36
       +
         end)

     

       37
       37
       +
       ```

     

       38
       38
       +
       

     

       39
       39
       +
       <!-- livebook:{"output":true} -->

     

       40
       40
       +
       

     

       41
       41
       +
       ```

     

       42
       42
       +
       [

     

       43
       43
       +
         %{pos: {49, 14}, v: {-82, -41}},

     

       44
       44
       +
         %{pos: {27, 80}, v: {67, 31}},

     

       45
       45
       +
         %{pos: {76, 93}, v: {-15, -66}},

     

       46
       46
       +
         %{pos: {90, 62}, v: {-84, 86}},

     

       47
       47
       +
         %{pos: {62, 86}, v: {46, 20}},

     

       48
       48
       +
         %{pos: {7, 72}, v: {25, 26}},

     

       49
       49
       +
         %{pos: {30, 32}, v: {-92, 60}},

     

       50
       50
       +
         %{pos: {91, 40}, v: {6, 1}},

     

       51
       51
       +
         %{pos: {50, 58}, v: {57, -21}},

     

       52
       52
       +
         %{pos: {71, 79}, v: {-3, 58}},

     

       53
       53
       +
         %{pos: {84, 44}, v: {36, -59}},

     

       54
       54
       +
         %{pos: {87, 12}, v: {-62, -95}},

     

       55
       55
       +
         %{pos: {69, 46}, v: {76, 39}},

     

       56
       56
       +
         %{pos: {50, 51}, v: {-26, -64}},

     

       57
       57
       +
         %{pos: {41, 58}, v: {30, 5}},

     

       58
       58
       +
         %{pos: {80, 97}, v: {-13, 9}},

     

       59
       59
       +
         %{pos: {52, 84}, v: {98, -50}},

     

       60
       60
       +
         %{pos: {52, 32}, v: {64, 39}},

     

       61
       61
       +
         %{pos: {52, 91}, v: {61, 20}},

     

       62
       62
       +
         %{pos: {31, 22}, v: {49, 45}},

     

       63
       63
       +
         %{pos: {85, 73}, v: {-43, 32}},

     

       64
       64
       +
         %{pos: {77, 15}, v: {20, -52}},

     

       65
       65
       +
         %{pos: {17, 10}, v: {74, -3}},

     

       66
       66
       +
         %{pos: {88, 92}, v: {-54, 26}},

     

       67
       67
       +
         %{pos: {20, 46}, v: {31, -63}},

     

       68
       68
       +
         %{pos: {42, 49}, v: {-26, 44}},

     

       69
       69
       +
         %{pos: {3, 101}, v: {40, -95}},

     

       70
       70
       +
         %{pos: {78, 77}, v: {-17, 48}},

     

       71
       71
       +
         %{pos: {10, 88}, v: {-88, 55}},

     

       72
       72
       +
         %{pos: {100, 68}, v: {74, 76}},

     

       73
       73
       +
         %{pos: {42, 11}, v: {-97, -25}},

     

       74
       74
       +
         %{pos: {88, 57}, v: {-37, 93}},

     

       75
       75
       +
         %{pos: {11, 36}, v: {-33, 54}},

     

       76
       76
       +
         %{pos: {88, 61}, v: {-58, 43}},

     

       77
       77
       +
         %{pos: {66, 47}, v: {-55, 82}},

     

       78
       78
       +
         %{pos: {11, 52}, v: {52, -60}},

     

       79
       79
       +
         %{pos: {9, 48}, v: {41, -64}},

     

       80
       80
       +
         %{pos: {70, 57}, v: {61, 27}},

     

       81
       81
       +
         %{pos: {22, 80}, v: {11, 11}},

     

       82
       82
       +
         %{pos: {73, 11}, v: {65, 56}},

     

       83
       83
       +
         %{pos: {79, 84}, v: {-28, 41}},

     

       84
       84
       +
         %{pos: {50, 79}, v: {-93, -12}},

     

       85
       85
       +
         %{pos: {55, 35}, v: {23, -64}},

     

       86
       86
       +
         %{pos: {48, 26}, v: {45, 29}},

     

       87
       87
       +
         %{pos: {38, 23}, v: {-86, -54}},

     

       88
       88
       +
         %{pos: {71, 48}, v: {-21, 6}},

     

       89
       89
       +
         %{pos: {60, 98}, v: {28, ...}},

     

       90
       90
       +
         %{pos: {75, ...}, v: {...}},

     

       91
       91
       +
         %{pos: {...}, ...},

     

       92
       92
       +
         %{...},

     

       93
       93
       +
         ...

     

       94
       94
       +
       ]

     

       95
       95
       +
       ```

     

       96
       96
       +
       

     

       97
       97
       +
       ```elixir

     

       98
       98
       +
       room = {w, h} = {101, 103}

     

       99
       99
       +
       ```

     

       100
       100
       +
       

     

       101
       101
       +
       <!-- livebook:{"output":true} -->

     

       102
       102
       +
       

     

       103
       103
       +
       ```

     

       104
       104
       +
       {101, 103}

     

       105
       105
       +
       ```

     

       106
       106
       +
       

     

       107
       107
       +
       ```elixir

     

       108
       108
       +
       defmodule Robot do

     

       109
       109
       +
         def walk(robots, room, n \\ 1), do: Enum.map(robots, &move(&1, room, n))

     

       110
       110
       +
       

     

       111
       111
       +
         def move(%{pos: {x, y}, v: {vx, vy}}, {w, h}, by \\ 1) do

     

       112
       112
       +
           x = Integer.mod(x + vx * by, w)

     

       113
       113
       +
           y = Integer.mod(y + vy * by, h)

     

       114
       114
       +
       

     

       115
       115
       +
           %{pos: {x, y}, v: {vx, vy}}

     

       116
       116
       +
         end

     

       117
       117
       +
       

     

       118
       118
       +
         def quad(%{pos: {x, y}}, {w, h}) do

     

       119
       119
       +
           hw = div(w - 1, 2)

     

       120
       120
       +
           hh = div(h - 1, 2)

     

       121
       121
       +
       

     

       122
       122
       +
           if x == hw or y == hh do

     

       123
       123
       +
             :middle

     

       124
       124
       +
           else

     

       125
       125
       +
             {sign(x - hw), sign(y - hh)}

     

       126
       126
       +
           end

     

       127
       127
       +
         end

     

       128
       128
       +
       

     

       129
       129
       +
         defp sign(0), do: 0

     

       130
       130
       +
         defp sign(n) when n < 0, do: -1

     

       131
       131
       +
         defp sign(n) when n > 0, do: 1

     

       132
       132
       +
       

     

       133
       133
       +
         def with_neighbours(robots) do

     

       134
       134
       +
           set = MapSet.new(robots, & &1.pos)

     

       135
       135
       +
       

     

       136
       136
       +
           with_neighbours =

     

       137
       137
       +
             Enum.count(robots, fn %{pos: {x, y}} ->

     

       138
       138
       +
               [{x + 1, y}, {x - 1, y}, {x, y - 1}, {x, y + 1}] |> Enum.any?(&(&1 in set))

     

       139
       139
       +
             end)

     

       140
       140
       +
       

     

       141
       141
       +
           div(with_neighbours * 100, length(robots))

     

       142
       142
       +
         end

     

       143
       143
       +
       end

     

       144
       144
       +
       ```

     

       145
       145
       +
       

     

       146
       146
       +
       <!-- livebook:{"output":true} -->

     

       147
       147
       +
       

     

       148
       148
       +
       ```

     

       149
       149
       +
       {:module, Robot, <<70, 79, 82, 49, 0, 0, 18, ...>>, {:with_neighbours, 1}}

     

       150
       150
       +
       ```

     

       151
       151
       +
       

     

       152
       152
       +
       ## Part 1

     

       153
       153
       +
       

     

       154
       154
       +
       ```elixir

     

       155
       155
       +
       robots

     

       156
       156
       +
       |> Robot.walk(room, 100)

     

       157
       157
       +
       |> Enum.group_by(fn robot -> Robot.quad(robot, room) end)

     

       158
       158
       +
       |> Map.new(fn {k, l} -> {k, length(l)} end)

     

       159
       159
       +
       |> Map.drop([:middle])

     

       160
       160
       +
       |> Map.values()

     

       161
       161
       +
       |> Enum.product()

     

       162
       162
       +
       ```

     

       163
       163
       +
       

     

       164
       164
       +
       <!-- livebook:{"output":true} -->

     

       165
       165
       +
       

     

       166
       166
       +
       ```

     

       167
       167
       +
       219150360

     

       168
       168
       +
       ```

     

       169
       169
       +
       

     

       170
       170
       +
       ## Part 2

     

       171
       171
       +
       

     

       172
       172
       +
       Hack that I have found over the internet - if more than 60% of the robots have neighbours, you have found solution.

     

       173
       173
       +
       

     

       174
       174
       +
       Othe hack that I have found - checking whether there are no robots that are occupying the same position - didn't work for me.

     

       175
       175
       +
       

     

       176
       176
       +
       ```elixir

     

       177
       177
       +
       {tree, steps} =

     

       178
       178
       +
         Stream.from_index()

     

       179
       179
       +
         |> Task.async_stream(

     

       180
       180
       +
           fn step ->

     

       181
       181
       +
             robots = Robot.walk(robots, room, step)

     

       182
       182
       +
       

     

       183
       183
       +
             if Robot.with_neighbours(robots) >= 60, do: {robots, step}

     

       184
       184
       +
           end,

     

       185
       185
       +
           ordered: false

     

       186
       186
       +
         )

     

       187
       187
       +
         |> Enum.find_value(fn {:ok, val} -> val end)

     

       188
       188
       +
       

     

       189
       189
       +
       steps

     

       190
       190
       +
       ```

     

       191
       191
       +
       

     

       192
       192
       +
       <!-- livebook:{"output":true} -->

     

       193
       193
       +
       

     

       194
       194
       +
       ```

     

       195
       195
       +
       8053

     

       196
       196
       +
       ```

     

       197
       197
       +
       

     

       198
       198
       +
       ```elixir

     

       199
       199
       +
       Image.new!(w, h)

     

       200
       200
       +
       |> Image.mutate(fn img ->

     

       201
       201
       +
         for %{pos: {x, y}} <- tree do

     

       202
       202
       +
           # Add some festivity

     

       203
       203
       +
           color =

     

       204
       204
       +
             if abs(:math.sin(x + y)) < 0.5 do

     

       205
       205
       +
               :red

     

       206
       206
       +
             else

     

       207
       207
       +
               :green

     

       208
       208
       +
             end

     

       209
       209
       +
       

     

       210
       210
       +
           Image.Draw.point(img, x, y, color: color)

     

       211
       211
       +
         end

     

       212
       212
       +
       

     

       213
       213
       +
         {:ok, img}

     

       214
       214
       +
       end)

     

       215
       215
       +
       |> elem(1)

     

       216
       216
       +
       |> Image.resize!(4, interpolate: :nearest)

     

       217
       217
       +
       ```

     

       218
       218
       +
       

     

       219
       219
       +
       <!-- livebook:{"offset":9213,"stamp":{"token":"XCP.bbViODF6Z4_TcNSzpaXWzuFflurdyZ5JsvKHJZr6NjgJ4MQaH2OorTxA-YR5uDBN5HxiB0uC5hX0vi-Kgdm26HMcOubYpE_c39bjuPfPH_BH4SVxLeEac5c8aaRtPdt7CJk","version":2}} -->

+395

2024/day15.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 15

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxNSIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "15", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "##################################################\n##...O...#OO...O.#....#....#O#O..O..O......O..O..#\n#OOOO.#.O.O.....OO#...O.OO.O....O.#..OO....O#OOO.#\n#...#.#O..O...OO......O.......#....O..O#.O..OO...#\n#.O.....O..#.........O......OO..O..OO.OO....O.O..#\n#.....O.OO.O.#.O...O..#.OOOO..#...#.O.OO.O.#.#OO##\n#...OO.#..O.O.#.O..OO..O....O...OO.OOO.......O...#\n##.O.....O..#O...........O..O.....O.......OO.....#\n#...O..O....O...O...O...O..O..O...O......O..OO...#\n#.O##.O.OO.....O.O.#....O#.....OO.O.O.#..O....#O.#\n#.............#.O........OOO.OO..#.............O.#\n#OOO..O.O.........OO....O.#......#.OO.......O..O.#\n#.......#...O..#O.OO...O..#O.O...##O#O......O##..#\n#O#.O..#........O....O.....O...#O..#......O.O..O.#\n#O..O..O#...#.......OO.OO..O.....O..O..O.O.O...O.#\n#...O.O...OO.......#O#O...O.##.....#..O.O.....O..#\n#.#OOOO..OO..O....O.O....OO.#.OO..O.......O....#.#\n#..O...#.....#.....OO..#O....O#.O....O..OOO.O...O#\n#.O.......OO.O.#........OO...O..O#..O.#..##...#.O#\n#.O..#..........OO.O.O..O..O.......O...O.O.OO....#\n#.O..##..........OO..O..O.....#OO#...#..O....O...#\n#O.OOOO.O..O........O#.#OO.OO...OO.#OO..OO#O.....#\n#..OO..........O...O....O.O.....O.....O...#..O..O#\n#.#O..O..O.....#.O...#........O.O.O..O.......#.O.#\n#..##..O.....O......O..O@........O....O#.O..OO..O#\n#...O..##O.#....#.......O..OO#..O.O.....##O....O.#\n#....O.O...O.OOO.O.O#..O..OOOOOOOOOO#.....O...#.O#\n#O.....#O..O..#..O....O.O..OOOO.#.O.O#....#.O.O#.#\n#..O.O..#O..............O....###..O#.O.....O.#O#O#\n#O...O.O.#.#..O......OO.OO#..O...O.O....O#.O...OO#\n#..OO.O#.....O##.O##....O..#..#..#O..O.....#....O#\n#....#..O..O....O.OO...O.......OO.OO...O.O.....O.#\n#....O.O.#O.#OO.......O......O........OOO..O.....#\n#..#...##.O......##.....O..O.O#.O...O....O..#.O..#\n#...O.O..O....O..O.OOOOOO...#.O...OO.#.....OO.O..#\n#O.......O....#.OO.OO...OO...##O......O.O........#\n##.O.OO.OO...O..O#......O.O....#.............O.#.#\n#O#O...O..O..OO.O.O...OO..O.O..OOOO..O..O...O..O.#\n#..OO.O#O..O..#.O..O.#...#..O.....OO..OOO..O...O.#\n#.O.O..OO.....O...O.....O..#..O..#.O.#.OOO...O.O.#\n#.O..O.......O...OO#.#..O....O...O....O..........#\n#....O..O.OO...OO..#....#O.OO.OO##.....O.........#\n#..O..O....O...O....OO#.#O..O.#.#O.O..O...#....O.#\n#.O.....O.#.O#.O..O.OO.O#............O..........O#\n#..O#O.O.........O.#.O#O..#O.O.........O....O..O.#\n#..O.....#OO..O..#.#.#....O.O.OO.O.O......O#.#O..#\n#.O.O..O.O.O.O...O..O..OO..................#OO...#\n#..O....O....O.....OOO...OO..OO.......O....OO....#\n#.O....OO.O................OO....O.O#O.O.........#\n##################################################\n\n>v>>>^>>v>vv^v^^v^^^<v^vv^vv<<>^v^^^<<<vv<>vv^^>v>v^^><>^<v<v><>>^>^<^^v>v<>^^v<><<^><v>v^v<<^>^>^>^>>vvv>^<<^^^^^><vv>>^>^^>^vv>><v^^v^<<<>^^<<<^^^vv^<^<<<>v<^v<v>^<>v<^>>^v^<>><><<^<>v>^>^>v>>v>vv^><v<v^v>vv>><^^<<>>vv<<^vv>^^vv>>><^v^>>v<<<<v>^<><>^>v^vv>v>><><^vvv>^><<>^<<<vvv^>^vv<<>v^^^>v<>^^vv>vv^<>^<>vvv<vvvv^^^<^vv^<v^<<vv^v<><vvvv^>vv<>><><<v>><^>v<>v<v<v>^v>^<>^v>>><^>>v<<<v^>^v>v>^^>^v<v^v^^<vv^v^><<^^<v^v>>^v>>>>>v<v^>^>^v^>vv^v^><^<v>^^<>^v^>><>>><vv<<>^v<^vvv<v^vvv^>v<<v>>^>><<^v^^v>^^>^<<<>v^^>><<v>^<v^<^>v>>>^^^<<vvv^>vvv>^><v>^>vvv^^^v^^>v^><v>><>^<v<<vv^^>>^^v>><vv>vvv>^>>>vv^><^<v<<<^^v>v^<v^^>^^<<<>v^vv<vvv>^v>v<^^>vv>v<>>vv<><v>v<^^<<^>>v<v^<>^<<v>><<vv^<<<<v^^^v^^<^<^<>v><^<>>v>v>v>v>v><v>>v<<^>>><v^v<v>>v^><^v^>>>^>^<<>>^^v><^<v^vv^<><>>v^^>v<vvv>v<>><<<<<>><<><v<>vv><^^^><vv<v<<>v^>v>>^^v^v^>vvv<v^<>><<<^>vvv><^^v>v<>v><^<v>v<^<<^<>v>>>>^<>^^^>v<v<<vv><v>>>^<^>v^><vv>^<<v<>><<^<>>>^v>><<>v^^v<^>v^v^>vvvv>vv<<>^^^<v>^<<v>>><<>>>vv^<^><><^^^>^v^<><>^<vv<^vv^^v>^<\n<^>vv>v>^^>^vvvv<<^><^<>>^<v>v>>^^<v><^<>><<<>^vv<>v<v^>>>^<<^<><<>^^vv^^<<><<vvv>v^^>vv^<v<<>>v><^>v^>>^^v<<<<^v<v<<>>v><v^>vv^<vv^>^v>^^>>><>v<><^v><vvvv^v<<>>^^v><>>vv^>v>v^>^>v<><^v>v^^<<>^v^>^>v<><^v<^^vv<>^^^v^>>><<><<<<v^v^><v<v<^^^><><^<<^^^vv<^^<^<v>v<<v^>>v<>>^<vv<^<v><>^<^v^>^v>>>^v>>v^>^^v^>><<v>>^<v>^vvv<v<<<v>^<>vv<^<v<>^<>v^v^>vv^v>><^>><>^^^<<v<vv^<vv>>v<^^^>vv<^^>vv^^^^<<^<v^>v<v>vvv<v<<^^><v<<^>^^<>v>>v><^v^<v>vv^<v<<v>v>vvv^>v<vv>>>>>^^v<<>^><>v^^^>^^>^>^^vvvv^v<v>>^^^v>>^<v<^^v>>><<>^^><<<^>v^^^v><v<v<v^v^><>^>v<v<^^^>" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       #puzzle_input =

     

       27
       27
       +
         """

     

       28
       28
       +
       ##########

     

       29
       29
       +
       #..O..O.O#

     

       30
       30
       +
       #......O.#

     

       31
       31
       +
       #.OO..O.O#

     

       32
       32
       +
       #..O@..O.#

     

       33
       33
       +
       #O#..O...#

     

       34
       34
       +
       #O..O..O.#

     

       35
       35
       +
       #.OO.O.OO#

     

       36
       36
       +
       #....O...#

     

       37
       37
       +
       ##########

     

       38
       38
       +
       

     

       39
       39
       +
       <vv>^<v^>v>^vv^v>v<>v^v<v<^vv<<<^><<><>>v<vvv<>^v^>^<<<><<v<<<v^vv^v>^

     

       40
       40
       +
       vvv<<^>^v^^><<>>><>^<<><^vv^^<>vvv<>><^^v>^>vv<>v<<<<v<^v>^<^^>>>^<v<v

     

       41
       41
       +
       ><>vv>v^v^<>><>>>><^^>vv>v<^^^>>v^v^<^^>v^^>v^<^v>v<>>v^v^<v>v^^<^^vv<

     

       42
       42
       +
       <<v<^>>^^^^>>>v^<>vvv^><v<<<>^^^vv^<vvv>^>v<^^^^v<>^>vvvv><>>v^<<^^^^^

     

       43
       43
       +
       ^><^><>>><>^^<<^^v>>><^<v>^<vv>>v>>>^v><>^v><<<<v>>v<v<v>vvv>^<><<>^><

     

       44
       44
       +
       ^>><>^v<><^vvv<^^<><v<<<<<><^v<<<><<<^^<v<^^^><^>>^<v^><<<^>>^v<v^v<v^

     

       45
       45
       +
       >^>>^v>vv>^<<^v<>><<><<v<<v><>v<^vv<<<>^^v^>^^>>><<^v>>v^v><^^>>^<>vv^

     

       46
       46
       +
       <><^^>^^^<><vvvvv^v<v<<>^v<v>v<<^><<><<><<<^^<<<^<<>><<><^^^>^^<>^>v<>

     

       47
       47
       +
       ^^>vv<^v^v<vv>^<><v<^v>^^^>>>^^vvv^>vvv<>>>^<^>>>>>^<<^v>^vvv<>^<><<v>

     

       48
       48
       +
       v^^>>><<^^<>>^v^<v^vv<>v^<<>^<^v^v><^<<<><<^<v><v<>vv>>v><v^<vv<>v^<<^

     

       49
       49
       +
         """

     

       50
       50
       +
       

     

       51
       51
       +
       #puzzle_input =

     

       52
       52
       +
         """

     

       53
       53
       +
       ########

     

       54
       54
       +
       #..O.O.#

     

       55
       55
       +
       ##@.O..#

     

       56
       56
       +
       #...O..#

     

       57
       57
       +
       #.#.O..#

     

       58
       58
       +
       #...O..#

     

       59
       59
       +
       #......#

     

       60
       60
       +
       ########

     

       61
       61
       +
       

     

       62
       62
       +
       <^^>>>vv<v>>v<<

     

       63
       63
       +
         """

     

       64
       64
       +
       ```

     

       65
       65
       +
       

     

       66
       66
       +
       <!-- livebook:{"output":true} -->

     

       67
       67
       +
       

     

       68
       68
       +
       ```

     

       69
       69
       +
       warning: outdented heredoc line. The contents inside the heredoc should be indented at the same level as the closing """. The following is forbidden:

     

       70
       70
       +
       

     

       71
       71
       +
           def text do

     

       72
       72
       +
             """

     

       73
       73
       +
           contents

     

       74
       74
       +
             """

     

       75
       75
       +
           end

     

       76
       76
       +
       

     

       77
       77
       +
       Instead make sure the contents are indented as much as the heredoc closing:

     

       78
       78
       +
       

     

       79
       79
       +
           def text do

     

       80
       80
       +
             """

     

       81
       81
       +
             contents

     

       82
       82
       +
             """

     

       83
       83
       +
           end

     

       84
       84
       +
       

     

       85
       85
       +
       The current heredoc line is indented too little

     

       86
       86
       +
       └─ Workspace/hauleth/advent-of-code/2024/day15.livemd#cell:7w6bq5lw7vctw7mk:3:3

     

       87
       87
       +
       

     

       88
       88
       +
       warning: outdented heredoc line. The contents inside the heredoc should be indented at the same level as the closing """. The following is forbidden:

     

       89
       89
       +
       

     

       90
       90
       +
           def text do

     

       91
       91
       +
             """

     

       92
       92
       +
           contents

     

       93
       93
       +
             """

     

       94
       94
       +
           end

     

       95
       95
       +
       

     

       96
       96
       +
       Instead make sure the contents are indented as much as the heredoc closing:

     

       97
       97
       +
       

     

       98
       98
       +
           def text do

     

       99
       99
       +
             """

     

       100
       100
       +
             contents

     

       101
       101
       +
             """

     

       102
       102
       +
           end

     

       103
       103
       +
       

     

       104
       104
       +
       The current heredoc line is indented too little

     

       105
       105
       +
       └─ Workspace/hauleth/advent-of-code/2024/day15.livemd#cell:7w6bq5lw7vctw7mk:28:3

     

       106
       106
       +
       

     

       107
       107
       +
       warning: code block contains unused literal "##########\n#..O..O.O#\n#......O.#\n#.OO..O.O#\n#..O@..O.#\n#O#..O...#\n#O..O..O.#\n#.OO.O.OO#\n#....O...#\n##########\n\n<vv>^<v^>v>^vv^v>v<>v^v<v<^vv<<<^><<><>>v<vvv<>^v^>^<<<><<v<<<v^vv^v>^\nvvv<<^>^v^^><<>>><>^<<><^vv^^<>vvv<>><^^v>^>vv<>v<<<<v<^v>^<^^>>>^<v<v\n><>vv>v^v^<>><>>>><^^>vv>v<^^^>>v^v^<^^>v^^>v^<^v>v<>>v^v^<v>v^^<^^vv<\n<<v<^>>^^^^>>>v^<>vvv^><v<<<>^^^vv^<vvv>^>v<^^^^v<>^>vvvv><>>v^<<^^^^^\n^><^><>>><>^^<<^^v>>><^<v>^<vv>>v>>>^v><>^v><<<<v>>v<v<v>vvv>^<><<>^><\n^>><>^v<><^vvv<^^<><v<<<<<><^v<<<><<<^^<v<^^^><^>>^<v^><<<^>>^v<v^v<v^\n>^>>^v>vv>^<<^v<>><<><<v<<v><>v<^vv<<<>^^v^>^^>>><<^v>>v^v><^^>>^<>vv^\n<><^^>^^^<><vvvvv^v<v<<>^v<v>v<<^><<><<><<<^^<<<^<<>><<><^^^>^^<>^>v<>\n^^>vv<^v^v<vv>^<><v<^v>^^^>>>^^vvv^>vvv<>>>^<^>>>>>^<<^v>^vvv<>^<><<v>\nv^^>>><<^^<>>^v^<v^vv<>v^<<>^<^v^v><^<<<><<^<v><v<>vv>>v><v^<vv<>v^<<^\n" (remove the literal or assign it to _ to avoid warnings)

     

       108
       108
       +
       └─ Workspace/hauleth/advent-of-code/2024/day15.livemd#cell:7w6bq5lw7vctw7mk:1

     

       109
       109
       +
       

     

       110
       110
       +
       ```

     

       111
       111
       +
       

     

       112
       112
       +
       <!-- livebook:{"output":true} -->

     

       113
       113
       +
       

     

       114
       114
       +
       ```

     

       115
       115
       +
       "########\n#..O.O.#\n##@.O..#\n#...O..#\n#.#.O..#\n#...O..#\n#......#\n########\n\n<^^>>>vv<v>>v<<\n"

     

       116
       116
       +
       ```

     

       117
       117
       +
       

     

       118
       118
       +
       ```elixir

     

       119
       119
       +
       [map, moves] = String.split(puzzle_input, "\n\n")

     

       120
       120
       +
       ```

     

       121
       121
       +
       

     

       122
       122
       +
       <!-- livebook:{"output":true} -->

     

       123
       123
       +
       

     

       124
       124
       +
       ```

     

       125
       125
       +
       ["##################################################\n##...O...#OO...O.#....#....#O#O..O..O......O..O..#\n#OOOO.#.O.O.....OO#...O.OO.O....O.#..OO....O#OOO.#\n#...#.#O..O...OO......O.......#....O..O#.O..OO...#\n#.O.....O..#.........O......OO..O..OO.OO....O.O..#\n#.....O.OO.O.#.O...O..#.OOOO..#...#.O.OO.O.#.#OO##\n#...OO.#..O.O.#.O..OO..O....O...OO.OOO.......O...#\n##.O.....O..#O...........O..O.....O.......OO.....#\n#...O..O....O...O...O...O..O..O...O......O..OO...#\n#.O##.O.OO.....O.O.#....O#.....OO.O.O.#..O....#O.#\n#.............#.O........OOO.OO..#.............O.#\n#OOO..O.O.........OO....O.#......#.OO.......O..O.#\n#.......#...O..#O.OO...O..#O.O...##O#O......O##..#\n#O#.O..#........O....O.....O...#O..#......O.O..O.#\n#O..O..O#...#.......OO.OO..O.....O..O..O.O.O...O.#\n#...O.O...OO.......#O#O...O.##.....#..O.O.....O..#\n#.#OOOO..OO..O....O.O....OO.#.OO..O.......O....#.#\n#..O...#.....#.....OO..#O....O#.O....O..OOO.O...O#\n#.O.......OO.O.#........OO...O..O#..O.#..##...#.O#\n#.O..#..........OO.O.O..O..O.......O...O.O.OO....#\n#.O..##..........OO..O..O.....#OO#...#..O....O...#\n#O.OOOO.O..O........O#.#OO.OO...OO.#OO..OO#O.....#\n#..OO..........O...O....O.O.....O.....O...#..O..O#\n#.#O..O..O.....#.O...#........O.O.O..O.......#.O.#\n#..##..O.....O......O..O@........O....O#.O..OO..O#\n#...O..##O.#....#.......O..OO#..O.O.....##O....O.#\n#....O.O...O.OOO.O.O#..O..OOOOOOOOOO#.....O...#.O#\n#O.....#O..O..#..O....O.O..OOOO.#.O.O#....#.O.O#.#\n#..O.O..#O..............O....###..O#.O.....O.#O#O#\n#O...O.O.#.#..O......OO.OO#..O...O.O....O#.O...OO#\n#..OO.O#.....O##.O##....O..#..#..#O..O.....#....O#\n#....#..O..O....O.OO...O.......OO.OO...O.O.....O.#\n#....O.O.#O.#OO.......O......O........OOO..O.....#\n#..#...##.O......##.....O..O.O#.O...O....O..#.O..#\n#...O.O..O....O..O.OOOOOO...#.O...OO.#.....OO.O..#\n#O.......O....#.OO.OO...OO...##O......O.O........#\n##.O.OO.OO...O..O#......O.O....#.............O.#.#\n#O#O...O..O..OO.O.O...OO..O.O..OOOO..O..O...O..O.#\n#..OO.O#O..O..#.O..O.#...#..O.....OO..OOO..O...O.#\n#.O.O..OO.....O...O.....O..#..O..#.O.#.OOO...O.O.#\n#.O..O.......O...OO#.#..O....O...O....O..........#\n#....O..O.OO...OO..#....#O.OO.OO##.....O.........#\n#..O..O....O...O....OO#.#O..O.#.#O.O..O...#....O.#\n#.O.....O.#.O#.O..O.OO.O#............O..........O#\n#..O#O.O.........O.#.O#O..#O.O.........O....O..O.#\n#..O.....#OO..O..#.#.#....O.O.OO.O.O......O#.#O..#\n#.O.O..O.O.O.O...O..O..OO..................#OO...#\n#..O....O....O.....OOO...OO..OO.......O....OO....#\n#.O....OO.O................OO....O.O#O.O.........#\n##################################################",

     

       126
       126
       +
        ">v>>>^>>v>vv^v^^v^^^<v^vv^vv<<>^v^^^<<<vv<>vv^^>v>v^^><>^<v<v><>>^>^<^^v>v<>^^v<><<^><v>v^v<<^>^>^>^>>vvv>^<<^^^^^><vv>>^>^^>^vv>><v^^v^<<<>^^<<<^^^vv^<^<<<>v<^v<v>^<>v<^>>^v^<>><><<^<>v>^>^>v>>v>vv^><v<v^v>vv>><^^<<>>vv<<^vv>^^vv>>><^v^>>v<<<<v>^<><>^>v^vv>v>><><^vvv>^><<>^<<<vvv^>^vv<<>v^^^>v<>^^vv>vv^<>^<>vvv<vvvv^^^<^vv^<v^<<vv^v<><vvvv^>vv<>><><<v>><^>v<>v<v<v>^v>^<>^v>>><^>>v<<<v^>^v>v>^^>^v<v^v^^<vv^v^><<^^<v^v>>^v>>>>>v<v^>^>^v^>vv^v^><^<v>^^<>^v^>><>>><vv<<>^v<^vvv<v^vvv^>v<<v>>^>><<^v^^v>^^>^<<<>v^^>><<v>^<v^<^>v>>>^^^<<vvv^>vvv>^><v>^>vvv^^^v^^>v^><v>><>^<v<<vv^^>>^^v>><vv>vvv>^>>>vv^><^<v<<<^^v>v^<v^^>^^<<<>v^vv<vvv>^v>v<^^>vv>v<>>vv<><v>v<^^<<^>>v<v^<>^<<v>><<vv^<<<<v^^^v^^<^<^<>v><^<>>v>v>v>v>v><v>>v<<^>>><v^v<v>>v^><^v^>>>^>^<<>>^^v><^<v^vv^<><>>v^^>v<vvv>v<>><<<<<>><<><v<>vv><^^^><vv<v<<>v^>v>>^^v^v^>vvv<v^<>><<<^>vvv><^^v>v<>v><^<v>v<^<<^<>v>>>>^<>^^^>v<v<<vv><v>>>^<^>v^><vv>^<<v<>><<^<>>>^v>><<>v^^v<^>v^v^>vvvv>vv<<>^^^<v>^<<v>>><<>>>vv^<^><><^^^>^v^<><>^<vv<^vv^^v>^<\n<^>vv>v>^^>^vvvv<<^><^<>>^<v>v>>^^<v><^<>><<<>^vv<>v<v^>>>^<<^<><<>^^vv^^<<><<vvv>v^^>vv^<v<<>>v><^>v^>>^^v<<<<^v<v<<>>v><v^>vv^<vv^>^v>^^>>><>v<><^v><vvvv^v<<>>^^v><>>vv^>v>v^>^>v<><^v>v^^<<>^v^>^>v<><^v<^^vv<>^^^v^>>><<><<<<v^v^><v<v<^^^><><^<<^^^vv<^^<^<v>v<<v^>>v<>>^<vv<^<v><>^<^v^>^v>>>^v>>v^>^^v^>><<v>>^<v>^vvv<v<<<v>^<>vv<^<v<>^<>v^v^>vv^v>><^>><>^^^<<v<vv^<vv>>v<^^^>vv<^^>vv^^^^<<^<v^>v<v>vvv<v<<^^><v<<^>^^<>v>>v><^v^<v>vv^<v<<v>v>vvv^>v<vv>>>>>^^v<<>^><>v^^^>^^>^>^^vvvv^v<v>>^^^v>>^<v<^^v>>><<>^^><<<^>v^^^v><v<v<v^v^><>^>v<v<^^^>>>vv><<^>><v>><<v<<vv><^^^<<^<>v>^v^v><<<<<<>>vv^<<<><<><><<^<^>^<v<^v>>>^>v^>^v>^v^<^>^v>><<<v>v^^vvv><<^>v^^<><v^>><<v><^^>>v<<<<<^>>><><vv>v<<>>^v<><<^>>v<<<^<^>>^>v^>^v<v>^v>>v<^>><<>><>vvv<<>vv^>v>><><<^><vvv>v><^>^<^v><>>v><v><^v^vv><>^^>>>v<^v^<^v>^v><vv<<v<<v><>>><v<vv<>>v^^>>>vv><v<<<<><v^^>>v>^<v^^>^v<<<><v>v>>^^<vv<v^v>><^<^^<>><v>^<^^<><^^^><>^<v^^^<v<^>>^v>vv^^<^v>><<vv><<v>><v>>>^>>><<<v<<><^vvv^<v>^>vvv^v>>v><<>v><<v<vvvvv^>^>><v^>vv^>>^\nvvv^v^><<v<>><><><<<^v>^v^><>^vvv<<^<<v^v<>>v<v^^>>^>v<v>^v<v^v>^<<vvv<^^v<<<<>v^v<<<v<^>><v^vv^vvvv^v><><v<<^>v>v^v^<v<v<^<><^>^vv<^^v<^^>vv<<>^^<>><<<<^^>>>^<^^>vv<>>>^^^^vv^>^v^v^^>^<<<>v^<v>^^^>v<^^<<^<v><^vvv>v>v>v<^>><^<^<>>>^^<<<vv^>>><>>v><>^<>^^<v^><<vv>vv^v<<>^>v><vvv>v^>>v^^^v<<>>^v><^<>^>^<^>^^<vv<>>><v^v^>>>^^>>^v^^^>>^v>v><^^^v<>>vv>>v^^<><^^v>v<^>>v<v^v^v^v^vv^vvv>v^vv>^v>vv<vv<^<<<v^v><<v>v<<^>vvv^^^^>>^>v>^^<>vv<>^^v><v<<^v><><><^<vv^>v^^>>>^^vv>^v>^<>vvv^v<^vv^<<^<^^<>>^<<><vv^>^>^^v^<v><v^>><^^>><<><<<<<<^>^><^v>^v>><v><v<>vvv>^^<^<<>v>>vv<v<><^<<^<>v<v>><><>^v><v<^^^<>>vvv>^^>>>v><v><^^>><<^<v><<^<v<<vv>>^vv<>v>^><><<<<<v>>>v^^v>^<>^<>v^^>>^<>>v^>^<>>>><>><v^v>>v>^<<^v^><<>>^v>><>><>>>><>vv<<>>^>v^v^<vvvvvvv^>v<<<^^<>vvvv^<<><<v^<<vv^^^v^^<<><v>v^^<^^v^^<>^v<>vvv>>^^v^^^<v>v^^vv<^^^<<>^v^>>^^<<^^v^^v<<vv^<<>>>v<>vv<v^v<<>vvv>^<v>v>^v<^^v<>^>^<><<v>v<>v^>v^v>><<><v><>>>>v^<^<^><>^v^<^><<v<^v><>>^v^^^v^><>^v>v<<^v>>^<<v<>v<^<<<<>>^><<<vv<^v^<^>^^><^^vvv^><v<><^^<>^v^>\nvvvv^vv^>>^v^v<^<vvv<>v>v>vv>^>^><^vv><v^v>v<><>v^v^>vvvv<<>v<^^^vv<^v><>^>^>v<>^>^vvv<>^>^<^^v^<><<>^>^v><v>^v>v^<v^<>>^^>^>v^>v>>^^<v><^<^vv>^vv^v^>v><^vv>^>v>^><>v>v^^>>v>^<<v^<vvv>>v<v>v^^<>^v^vv^<^^<v>>>v>>^v>vvv^^v^>v<vvv^<><v>v>v<>^^v^^<vv<>v<vvv>>><><<>>v>^^<^^^^><v>^>v<^<^>v^^>v>^>>^><<<^vv>vv^v^><v^<v>vv>^<>^vvvv^>vv>^>v^>v<<v^^<v^<v>>vvv<<v<>>>v^>^vv>^<v<>>^^v<vv<^>v<>^<<^^><>^^v>^v>>^<v>vv^v<<^^>^<v<><v>vv<><vv<>>v<^^^><<^^>^v<>vv<v>><<<v><<>>vv^>>^vvvv^><<v<vv^v<vv<>v<><v<<><v>vvv>>vv^^^<><^v<><v<^<v<v<^>>vv<><<>^^>><<v><^>vvv^>^vvv<>v^^<<^<vv>>v>^>v>^^><<>v<v^>^<<<<vv<<^^^>^>^>v<>>vv^><v<><<><^><><^^vv>>^<^vv<^^v<><<><>vvvv^^^<>v>>v^<vvv<v<vv><<v^v<v>>^v^<<^>>vvvv^v<<^<^vv<v<v>^v<^<^^>vv<v^^^>>^<^><^^v<v^v^>^^^v^v>^>^><^>>^v<v<^^^v^>>^v>vv>^v<>^v^^^v^v^>v>><^^<^v<<v<^v<>v^<>^<>^v<v^^v<^>v<v>^v<<><<<>^v><<<^>vvvvv^v^^^<<v>>v^>>^^<<v^^>vv^^vvvv>^>v^<<<^<>v><<^>^v^<^>><<<v<vv>vv<<^>^<^^><>>^^v>vvv^<^>^^^^<^v<<>^<>^>>v>^<><><>>^^vv^<<>><^<v><>^v^vvv<<>>^<>^>v<<^><<^>^<^>^<<><\n<<^<^>><<<vv>v<v<^<>>>v^>vv><>>vvvv<<^><<<>v<>v^v^<>v>v<^^<<v<vv^<<<vv>^<>^^vv<><v<<^v^v<^<v" <> ...]

     

       127
       127
       +
       ```

     

       128
       128
       +
       

     

       129
       129
       +
       ```elixir

     

       130
       130
       +
       %{robot: [robot], wall: walls, box: boxes} =

     

       131
       131
       +
         map

     

       132
       132
       +
         |> String.split("\n", trim: true)

     

       133
       133
       +
         |> Enum.with_index()

     

       134
       134
       +
         |> Enum.flat_map(fn {row, y} ->

     

       135
       135
       +
           row

     

       136
       136
       +
           |> String.to_charlist()

     

       137
       137
       +
           |> Enum.with_index()

     

       138
       138
       +
           |> Enum.reject(fn {kind, _} -> kind == ?. end)

     

       139
       139
       +
           |> Enum.map(fn {kind, x} ->

     

       140
       140
       +
             kind =

     

       141
       141
       +
               case kind do

     

       142
       142
       +
                 ?# -> :wall

     

       143
       143
       +
                 ?O -> :box

     

       144
       144
       +
                 ?@ -> :robot

     

       145
       145
       +
               end

     

       146
       146
       +
       

     

       147
       147
       +
             {{x, y}, kind}

     

       148
       148
       +
           end)

     

       149
       149
       +
         end)

     

       150
       150
       +
         |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

       151
       151
       +
       

     

       152
       152
       +
       walls = MapSet.new(walls)

     

       153
       153
       +
       boxes = MapSet.new(boxes)

     

       154
       154
       +
       ```

     

       155
       155
       +
       

     

       156
       156
       +
       <!-- livebook:{"output":true} -->

     

       157
       157
       +
       

     

       158
       158
       +
       ```

     

       159
       159
       +
       MapSet.new([

     

       160
       160
       +
         {38, 2},

     

       161
       161
       +
         {29, 26},

     

       162
       162
       +
         {9, 34},

     

       163
       163
       +
         {47, 38},

     

       164
       164
       +
         {47, 44},

     

       165
       165
       +
         {22, 37},

     

       166
       166
       +
         {19, 38},

     

       167
       167
       +
         {27, 21},

     

       168
       168
       +
         {19, 22},

     

       169
       169
       +
         {16, 10},

     

       170
       170
       +
         {16, 38},

     

       171
       171
       +
         {35, 26},

     

       172
       172
       +
         {10, 32},

     

       173
       173
       +
         {36, 14},

     

       174
       174
       +
         {28, 48},

     

       175
       175
       +
         {17, 30},

     

       176
       176
       +
         {32, 18},

     

       177
       177
       +
         {40, 35},

     

       178
       178
       +
         {6, 23},

     

       179
       179
       +
         {28, 37},

     

       180
       180
       +
         {29, 47},

     

       181
       181
       +
         {29, 40},

     

       182
       182
       +
         {29, 10},

     

       183
       183
       +
         {6, 42},

     

       184
       184
       +
         {23, 46},

     

       185
       185
       +
         {10, 33},

     

       186
       186
       +
         {4, 46},

     

       187
       187
       +
         {43, 47},

     

       188
       188
       +
         {12, 8},

     

       189
       189
       +
         {3, 16},

     

       190
       190
       +
         {15, 3},

     

       191
       191
       +
         {20, 46},

     

       192
       192
       +
         {33, 48},

     

       193
       193
       +
         {35, 6},

     

       194
       194
       +
         {41, 9},

     

       195
       195
       +
         {25, 29},

     

       196
       196
       +
         {1, 2},

     

       197
       197
       +
         {3, 30},

     

       198
       198
       +
         {8, 5},

     

       199
       199
       +
         {18, 37},

     

       200
       200
       +
         {37, 43},

     

       201
       201
       +
         {3, 47},

     

       202
       202
       +
         {30, 26},

     

       203
       203
       +
         {41, 31},

     

       204
       204
       +
         {4, 15},

     

       205
       205
       +
         {33, 40},

     

       206
       206
       +
         {6, 21},

     

       207
       207
       +
         {5, 26},

     

       208
       208
       +
         {1, ...},

     

       209
       209
       +
         {...},

     

       210
       210
       +
         ...

     

       211
       211
       +
       ])

     

       212
       212
       +
       ```

     

       213
       213
       +
       

     

       214
       214
       +
       ```elixir

     

       215
       215
       +
       moves = moves |> String.to_charlist() |> Enum.reject(& &1 not in ~c"^>v<")

     

       216
       216
       +
       ```

     

       217
       217
       +
       

     

       218
       218
       +
       <!-- livebook:{"output":true} -->

     

       219
       219
       +
       

     

       220
       220
       +
       ```

     

       221
       221
       +
       ~c">v>>>^>>v>vv^v^^v^^^<v^vv^vv<<>^v^^^<<<vv<>vv^^>v>v^^><>^<v<v><>>^>^<^^v>v<>^^v<><<^><v>v^v<<^>^>^>^>>vvv>^<<^^^^^><vv>>^>^^>^vv>><v^^v^<<<>^^<<<^^^vv^<^<<<>v<^v<v>^<>v<^>>^v^<>><><<^<>v>^>^>v>>v>vv^><v<v^v>vv>><^^<<>>vv<<^vv>^^vv>>><^v^>>v<<<<v>^<><>^>v^vv>v>><><^vvv>^><<>^<<<vvv^>^vv<<>v^^^>v<>^^vv>vv^<>^<>vvv<vvvv^^^<^vv^<v^<<vv^v<><vvvv^>vv<>><><<v>><^>v<>v<v<v>^v>^<>^v>>><^>>v<<<v^>^v>v>^^>^v<v^v^^<vv^v^><<^^<v^v>>^v>>>>>v<v^>^>^v^>vv^v^><^<v>^^<>^v^>><>>><vv<<>^v<^vvv<v^vvv^>v<<v>>^>><<^v^^v>^^>^<<<>v^^>><<v>^<v^<^>v>>>^^^<<vvv^>vvv>^><v>^>vvv^^^v^^>v^><v>><>^<v<<vv^^>>^^v>><vv>vvv>^>>>vv^><^<v<<<^^v>v^<v^^>^^<<<>v^vv<vvv>^v>v<^^>vv>v<>>vv<><v>v<^^<<^>>v<v^<>^<<v>><<vv^<<<<v^^^v^^<^<^<>v><^<>>v>v>v>v>v><v>>v<<^>>><v^v<v>>v^><^v^>>>^>^<<>>^^v><^<v^vv^<><>>v^^>v<vvv>v<>><<<<<>><<><v<>vv><^^^><vv<v<<>v^>v>>^^v^v^>vvv<v^<>><<<^>vvv><^^v>v<>v><^<v>v<^<<^<>v>>>>^<>^^^>v<v<<vv><v>>>^<^>v^><vv>^<<v<>><<^<>>>^v>><<>v^^v<^>v^v^>vvvv>vv<<>^^^<v>^<<v>>><<>>>vv^<^><><^^^>^v^<><>^<vv<^vv^^v>^<<^>vv>v>^^>^vvvv<<^><^<>>^<v>v>>^^<v><^<>><<<>^vv<>v<v^>>>^<<^<><<>^^vv^^<<><<vvv>v^^>vv^<v<<>>v><^>v^>>^^v<<<<^v<v<<>>v><v^>vv^<vv^>^v>^^>>><>v<><^v><vvvv^v<<>>^^v><>>vv^>v>v^>^>v<><^v>v^^<<>^v^>^>v<><^v<^^vv<>^^^v^>>><<><<<<v^v^><v<v<^^^><><^<<^^^vv<^^<^<v>v<<v^>>v<>>^<vv<^<v><>^<^v^>^v>>>^v>>v^>^^v^>><<v>>^<v>^vvv<v<<<v>^<>vv<^<v<>^<>v^v^>vv^v>><^>><>^^^<<v<vv^<vv>>v<^^^>vv<^^>vv^^^^<<^<v^>v<v>vvv<v<<^^><v<<^>^^<>v>>v><^v^<v>vv^<v<<v>v>vvv^>v<vv>>>>>^^v<<>^><>v^^^>^^>^>^^vvvv^v<v>>^^^v>>^<v<^^v>>><<>^^><<<^>v^^^v><v<v<v^v^><>^>v<v<^^^>>>vv><<^>><v>><<v<<vv><^^^<<^<>v>^v^v><<<<<<>>vv^<<<><<><><<^<^>^<v<^v>>>^>v^>^v>^v^<^>^v>><<<v>v^^vvv><<^>v^^<><v^>><<v><^^>>v<<<<<^>>><><vv>v<<>>^v<><<^>>v<<<^<^>>^>v^>^v<v>^v>>v<^>><<>><>vvv<<>vv^>v>><><<^><vvv>v><^>^<^v><>>v><v><^v^vv><>^^>>>v<^v^<^v>^v><vv<<v<<v><>>><v<vv<>>v^^>>>vv><v<<<<><v^^>>v>^<v^^>^v<<<><v>v>>^^<vv<v^v>><^<^^<>><v>^<^^<><^^^><>^<v^^^<v<^>>^v>vv^^<^v>><<vv><<v>><v>>>^>>><<<v<<><^vvv^<v>^>vvv^v>>v><<>v><<v<vvvvv^>^>><v^>vv^>>^vvv^v^><<v<>><><><<<^v>^v^><>^vvv<<^<<v^v<>>v<v^^>>^>v<v>^v<v^v>^<<vvv<^^v<<<<>v^v<<<v<^>><v^vv^vvvv^v><><v<<^>v>v^v^<v<v<^<><^>^vv<^^v<^^>vv<<>^^<>><<<<^^>>>^<^^>vv<>>>^^^^vv^>^v^v^^>^<<<>v^<v>^^^>v<^^<<^<v><^vvv>v>v>v<^>><^<^<>>>^^<<<vv^>>><>>v><>^<>^^<v^><<vv>vv^v<<>^>v><vvv>v^>>v^^^v<<>>^v><^<>^>^<^>^^<vv<>>><v^v^>>>^^>>^v^^^>>^v>v><^^^v<>>vv>>v^^<><^^v>v<^>>v<v^v^v^v^vv^vvv>v^vv>^v>vv<vv<^<<<v^v><<v>v<<^>vvv^^^^>>^>v>^^<>vv<>^^v><v<<^v><><><^<vv^>v^^>>>^^vv>^v>^<>vvv^v<^vv^<<^<^^<>>^<<><vv^>^>^^v^<v><v^>><^^>><<><<<<<<^>^><^v>^v>><v><v<>vvv>^^<^<<>v>>vv<v<><^<<^<>v<v>><><>^v><v<^^^<>>vvv>^^>>>v><v><^^>><<^<v><<^<v<<vv>>^vv<>v>^><><<<<<v>>>v^^v>^<>^<>v^^>>^<>>v^>^<>>>><>><v^v>>v>^<<^v^><<>>^v>><>><>>>><>vv<<>>^>v^v^<vvvvvvv^>v<<<^^<>vvvv^<<><<v^<<vv^^^v^^<<><v>v^^<^^v^^<>^v<>vvv>>^^v^^^<v>v^^vv<^^^<<>^v^>>^^<<^^v^^v<<vv^<<>>>v<>vv<v^v<<>vvv>^<v>v>^v<^^v<>^>^<><<v>v<>v^>v^v>><<><v><>>>>v^<^<^><>^v^<^><<v<^v><>>^v^^^v^><>^v>v<<^v>>^<<v<>v<^<<<<>>^><<<vv<^v^<^>^^><^^vvv^><v<><^^<>^v^>vvvv^vv^>>^v^v<^<vvv<>v>v>vv>^>^><^vv><v^v>v<><>v^v^>vvvv<<>v<^^^vv<^v><>^>^>v<>^>^vvv<>^>^<^^v^<><<>^>^v><v>^v>v^<v^<>>^^>^>v^>v>>^^<v><^<^vv>^vv^v^>v><^vv>^>v>^><>v>v^^>>v>^<<v^<vvv>>v<v>v^^<>^v^vv^<^^<v>>>v>>^v>vvv^^v^>v<vvv^<><v>v>v<>^^v^^<vv<>v<vvv>>><><<>>v>^^<^^^^><v>^>v<^<^>v^^>v>^>>^><<<^vv>vv^v^><v^<v>vv>^<>^vvvv^>vv>^>v^>v<<v^^<v^<v>>vvv<<v<>>>v^>^vv>^<v<>>^^v<vv<^>v<>^<<^^><>^^v>^v>>^<v>vv^v<<^^>^<v<><v>vv<><vv<>>v<^^^><<^^>^v<>vv<v>><<<v><<>>vv^>>^vvvv^><<v<vv^v<vv<>v<><v<<><v>vvv>>vv^^^<><^v<><v<^<v<v<^>>vv<><<>^^>><<v><^>vvv^>^vvv<>v^^<<^<vv>>v>^>v>^^><<>v<v^>^<<<<vv<<^^^>^>^>v<>>vv^><v<><<><^><><^^vv>>^<^vv<^^v<><<><>vvvv^^^<>v>>v^<vvv<v<vv><<v^v<v>>^v^<<^>>vvvv^v<<^<^vv<v<v>^v<^<^^>vv<v^^^>>^<^><^^v<v^v^>^^^v^v>^>^><^>>^v<v<^^^v^>>^v>vv>^v<>^v^^^v^v^>v>><^^<^v<<v<^v<>v^<>^<>^v<v^^v<^>v<v>^v<<><<<>^v><<<^>vvvvv^v^^^<<v>>v^>>^^<<v^^>vv^^vvvv>^>v^<<<^<>v><<^>^v^<^>><<<v<vv>vv<<^>^<^^><>>^^v>vvv^<^>^^^^<^v<<>^<>^>>v>^<><><>>^^vv^<<>><^<v><>^v^vvv<<>>^<>^>v<<^><<^>^<^>^<<><<<^<^>><<<vv>v<v<^<>>>v^>vv><>>vvvv<<^><<<>v<>v^v^<>v>v<^^<<v<vv^<<<vv>^<>^^vv<><v<<^v^v<^<v>>vv" ++ ...

     

       222
       222
       +
       ```

     

       223
       223
       +
       

     

       224
       224
       +
       ## Part 1

     

       225
       225
       +
       

     

       226
       226
       +
       ```elixir

     

       227
       227
       +
       defmodule Warehouse.A do

     

       228
       228
       +
         def walk(start, path, walls, boxes) do

     

       229
       229
       +
           Enum.reduce(path, {start, boxes}, fn dir, {pos, boxes} ->

     

       230
       230
       +
             move(pos, walls, boxes, dir)

     

       231
       231
       +
           end)

     

       232
       232
       +
           |> elem(1)

     

       233
       233
       +
         end

     

       234
       234
       +
         

     

       235
       235
       +
         def move({x, y}, walls, boxes, dir) do

     

       236
       236
       +
           next = next({x, y}, dir)

     

       237
       237
       +
       

     

       238
       238
       +
           cond do

     

       239
       239
       +
             next in walls ->

     

       240
       240
       +
               {{x, y}, boxes}

     

       241
       241
       +
       

     

       242
       242
       +
             next in boxes ->

     

       243
       243
       +
               if new_boxes = move_box(next, boxes, walls, dir) do

     

       244
       244
       +
                 {next, new_boxes}

     

       245
       245
       +
               else

     

       246
       246
       +
                 {{x, y}, boxes}

     

       247
       247
       +
               end

     

       248
       248
       +
       

     

       249
       249
       +
             true ->

     

       250
       250
       +
               {next, boxes}

     

       251
       251
       +
           end

     

       252
       252
       +
         end

     

       253
       253
       +
       

     

       254
       254
       +
         defp move_box(pos, boxes, walls, dir) do

     

       255
       255
       +
           next = next(pos, dir)

     

       256
       256
       +
           cond do

     

       257
       257
       +
             next in walls -> nil

     

       258
       258
       +
               

     

       259
       259
       +
             next in boxes ->

     

       260
       260
       +
               if new_boxes = move_box(next, boxes, walls, dir) do

     

       261
       261
       +
                 new_boxes |> MapSet.delete(pos) |> MapSet.put(next)

     

       262
       262
       +
               end

     

       263
       263
       +
       

     

       264
       264
       +
             true ->

     

       265
       265
       +
               boxes |> MapSet.delete(pos) |> MapSet.put(next)

     

       266
       266
       +
           end

     

       267
       267
       +
         end

     

       268
       268
       +
       

     

       269
       269
       +
         defp next({x, y}, ?^), do: {x, y - 1}

     

       270
       270
       +
         defp next({x, y}, ?>), do: {x + 1, y}

     

       271
       271
       +
         defp next({x, y}, ?v), do: {x, y + 1}

     

       272
       272
       +
         defp next({x, y}, ?<), do: {x - 1, y}

     

       273
       273
       +
       end

     

       274
       274
       +
       ```

     

       275
       275
       +
       

     

       276
       276
       +
       <!-- livebook:{"output":true} -->

     

       277
       277
       +
       

     

       278
       278
       +
       ```

     

       279
       279
       +
       {:module, Warehouse.A, <<70, 79, 82, 49, 0, 0, 14, ...>>, {:next, 2}}

     

       280
       280
       +
       ```

     

       281
       281
       +
       

     

       282
       282
       +
       ```elixir

     

       283
       283
       +
       robot

     

       284
       284
       +
       |> Warehouse.A.walk(moves, walls, boxes)

     

       285
       285
       +
       |> Enum.map(fn {x, y} -> x + y * 100 end)

     

       286
       286
       +
       |> Enum.sum()

     

       287
       287
       +
       ```

     

       288
       288
       +
       

     

       289
       289
       +
       <!-- livebook:{"output":true} -->

     

       290
       290
       +
       

     

       291
       291
       +
       ```

     

       292
       292
       +
       1406628

     

       293
       293
       +
       ```

     

       294
       294
       +
       

     

       295
       295
       +
       ## Part 2

     

       296
       296
       +
       

     

       297
       297
       +
       ```elixir

     

       298
       298
       +
       defmodule Warehouse.B do

     

       299
       299
       +
         def resize({x, y}, walls, boxes) do

     

       300
       300
       +
           start = {2 * x, y}

     

       301
       301
       +
       

     

       302
       302
       +
           walls =

     

       303
       303
       +
             walls

     

       304
       304
       +
             |> Enum.flat_map(fn {x, y} ->

     

       305
       305
       +
               [{2 * x, y}, {2 * x + 1, y}]

     

       306
       306
       +
             end)

     

       307
       307
       +
             |> MapSet.new()

     

       308
       308
       +
       

     

       309
       309
       +
           boxes =

     

       310
       310
       +
             boxes

     

       311
       311
       +
             |> Enum.flat_map(fn {x, y} ->

     

       312
       312
       +
               pos = [{2 * x, y}, {2 * x + 1, y}]

     

       313
       313
       +
               box = %{p: pos}

     

       314
       314
       +
       

     

       315
       315
       +
               for p <- pos do

     

       316
       316
       +
                 {p, box}

     

       317
       317
       +
               end

     

       318
       318
       +
             end)

     

       319
       319
       +
       

     

       320
       320
       +
           {start, walls, boxes}

     

       321
       321
       +
         end

     

       322
       322
       +
       

     

       323
       323
       +
         def walk(start, path, walls, boxes) do

     

       324
       324
       +
           Enum.reduce(path, {start, boxes}, fn dir, {pos, boxes} ->

     

       325
       325
       +
             move(pos, walls, boxes, dir)

     

       326
       326
       +
           end)

     

       327
       327
       +
           |> elem(1)

     

       328
       328
       +
         end

     

       329
       329
       +
       

     

       330
       330
       +
         def move({x, y}, walls, boxes, dir) do

     

       331
       331
       +
           next = next({x, y}, dir)

     

       332
       332
       +
       

     

       333
       333
       +
           cond do

     

       334
       334
       +
             next in walls ->

     

       335
       335
       +
               {{x, y}, boxes}

     

       336
       336
       +
       

     

       337
       337
       +
             box = boxes[next] ->

     

       338
       338
       +
               if new_boxes = move_box(box, boxes, walls, dir) do

     

       339
       339
       +
                 {next, new_boxes}

     

       340
       340
       +
               else

     

       341
       341
       +
                 {{x, y}, boxes}

     

       342
       342
       +
               end

     

       343
       343
       +
       

     

       344
       344
       +
             true ->

     

       345
       345
       +
               {next, boxes}

     

       346
       346
       +
           end

     

       347
       347
       +
         end

     

       348
       348
       +
       

     

       349
       349
       +
         defp move_box(%{p: pos}, boxes, walls, dir) do

     

       350
       350
       +
           next = next(pos, dir)

     

       351
       351
       +
       

     

       352
       352
       +
           cond do

     

       353
       353
       +
             Enum.any?(pos, & &1 in walls) ->

     

       354
       354
       +
               throw(:wall)

     

       355
       355
       +
       

     

       356
       356
       +
             (next_boxes = select_boxes_at(pos, boxes)) != [] ->

     

       357
       357
       +
               if new_boxes = move_box(next, boxes, walls, dir) do

     

       358
       358
       +
                 new_boxes |> MapSet.delete(pos) |> MapSet.put(next)

     

       359
       359
       +
               end

     

       360
       360
       +
       

     

       361
       361
       +
             true ->

     

       362
       362
       +
               boxes |> Map.drop(pos) |> MapSet.put(next)

     

       363
       363
       +
           end

     

       364
       364
       +
         catch

     

       365
       365
       +
           :throw, :wall -> nil

     

       366
       366
       +
         end

     

       367
       367
       +
       

     

       368
       368
       +
         defp select_boxes_at(pos, boxes) do

     

       369
       369
       +
           boxes

     

       370
       370
       +
           |> Map.take(pos)

     

       371
       371
       +
           |> Enum.uniq()

     

       372
       372
       +
         end

     

       373
       373
       +
       

     

       374
       374
       +
         defp next({x, y}, ?^), do: {x, y - 1}

     

       375
       375
       +
         defp next({x, y}, ?>), do: {x + 1, y}

     

       376
       376
       +
         defp next({x, y}, ?v), do: {x, y + 1}

     

       377
       377
       +
         defp next({x, y}, ?<), do: {x - 1, y}

     

       378
       378
       +
       end

     

       379
       379
       +
       ```

     

       380
       380
       +
       

     

       381
       381
       +
       <!-- livebook:{"output":true} -->

     

       382
       382
       +
       

     

       383
       383
       +
       ```

     

       384
       384
       +
       warning: variable "next_boxes" is unused (if the variable is not meant to be used, prefix it with an underscore)

     

       385
       385
       +
       └─ Workspace/hauleth/advent-of-code/2024/day15.livemd#cell:3ajets4kgmkyknvu:59: Warehouse.B.move_box/4

     

       386
       386
       +
       

     

       387
       387
       +
       ```

     

       388
       388
       +
       

     

       389
       389
       +
       <!-- livebook:{"output":true} -->

     

       390
       390
       +
       

     

       391
       391
       +
       ```

     

       392
       392
       +
       {:module, Warehouse.B, <<70, 79, 82, 49, 0, 0, 20, ...>>, {:next, 2}}

     

       393
       393
       +
       ```

     

       394
       394
       +
       

     

       395
       395
       +
       <!-- livebook:{"offset":23559,"stamp":{"token":"XCP.GtnzBtRKuk3dCuG1gVPqYVHJwR27FPAQixvDel9XY7YKKtIR-fLOYjYE9q5s_RDyt_V8hQtSWHWE0pTlg7ukiaTmklnlkowdbH-y0AJ21EtpRoXXQ3C48_7vRp_64BdLpHY","version":2}} -->

+303

2024/day16.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 16

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, :image])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Setup

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxNiIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "16", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "#############################################################################################################################################\n#.....#.......#.............#.........#.......................#.......#...#...............#.....#.#.................................#.#....E#\n#.#####.###.###.#######.###.#.#.#######.#.###.#####.###.#######.#.###.###.#.#####.#####.###.#.#.#.#.#####.###.#.###.#######.###.#.#.#.#.#.#.#\n#.......#...#...#.....#.#.#.#.#.#...#...#.....#...#.#...#.......#...#.#...#...#...#.#...#...............#...#...#.#.......#.#...#.#.#...#.#.#\n#########.#.#.###.#####.#.#.#.#.#.#.#.#########.#.#.###.#.#########.#.#.#.#.###.#.#.#.###.###.#####.###.###.#.#.#.###.###.#.#.###.#.#.###.#.#\n#.......#.#.#.#...#...#.#.#.#.#...#.....#.......#.#...#.#.#...#...#.#...#.#.#...#.....#...#.#...#...#.....#.#.....#.....#.#...#...#.#.#...#.#\n#.#####.#.###.#.#.#.#.#.#.#.###########.#######.#.###.#.#.###.#.#.#.#.#####.#.###.###.#.###.###.#.###.#.###.#.#.#.#.#.#.#.#.#.#.###.###.#####\n#...#...#.......#.#.#...#.#...........................#.#.#...#.#...#.#.....#.#.....#.#...#...#.....................#.#.#...................#\n#.#.#.#######.#####.#####.###########.#######.#####.#.###.#.###.#######.#####.###.#.#.###.#.#.#.#.#######.###.#.#####.#.#.#.#.###.###.#.###.#\n#.#...#.....#.#...#...#.......#.......#.....#...#...#.....#.#...#.....#...#...#.....#...#...#.#...#.......#...#.#...#.#.#.#.#...#.#...#...#.#\n#.#.###.###.###.#.#.#.###.###.#.#.#####.###.###.#.#########.#.###.###.###.#.###.#.###.#######.#####.#######.#.#.#.#.#.###.###.#.#.#.#######.#\n#.#.....#.......#.#.#...#.#...#.#...#...#.#.#.#.#.......#...#...#...#.......................#...#.#.#.....#.#.....#.#.........#...#.#.....#.#\n#.###.###########.#####.#.#####.#.#.#.#.#.#.#.#.###.###.#.#.###.###.#########.###.#.#.#.###.#.#.#.#.#####.#.#.#.#####.#######.#####.#.###.#.#\n#...#...................#.....#.#.#.#.#.#.....#.....#.#...#.#.#...#.....#...#.....#.#.#.#.#.....#.#.....#.#...#.#.........#...........#.....#\n#.#.#.#.###.#.###############.#.#.#.#.#.#############.#####.#.###.#####.#.#.#####.#.#.#.#.#######.#####.#.###.#.#.###.###.#.#.###.###########\n#.#.#.#.#.#.#.#.....#.......#.#...#...#...............#...#...#.#...#...#.#.......#.#.#.#.......#...#...#.....#.#.#.......#.#...#.#.........#\n#.#.###.#.#.###.###.###.#.#.#.###.#.#####.###.###.###.#.#.###.#.#.###.###.###.###.#.#.#.###.###.###.#.###.#####.#.#.#.###.#.#.#.###.#######.#\n#.#.....#.#...#.#.#...#.#.#.#...#.#.#...#...#...#...#...#...#...#.....#...#...#.......#.....#.#.....#...#.......#...#.#...#...#...#.#.#.....#\n#.#######.###.#.#.###.#.#.#.#.#.#.###.#.#####.#.#.#.#########.#.#######.#.#.#.#.#############.#####.###.#########.#####.###.#####.#.#.#.#.###\n#.#.......#.#.....#...#.#.#...#.#.#...#.....#.#.#.#.........#.#.........#.#.#.#.#.................#.#.#...#.......#.........#...#...#.#.....#\n#.#.#####.#.#######.#####.#######.#.#####.#.###.#.#########.#.#.#########.#.#.#.###.#######.#.#####.#.###.#.#######.#.###.###.#.#####.###.#.#\n#.#.....#.......#...#...#...#.....#.#...........#.#.......#...#.#...#.....#.#.#...#.#.......#.#...#...#...#.....#...#...#.#.................#\n#.#####.#######.#.###.#.###.#.#####.#######.#####.#.#.###.#####.#.#.###.###.#.###.###.#####.###.#.###.#.#######.#.#####.#.#####.#.#.###.#.#.#\n#.#...#.#.....#...#...#...#.#.......#.....#.#.....#.#...#.#...#.#.#...#.#...#.#.#...#.#...#.#...#...#.#.........#.....#.#.......#...#...#.#.#\n#.#.#.#.#.###.#.###.#####.#.#.#####.#.###.###.#########.###.#.#.#.###.#.#.###.#.###.#.#.#.###.###.###.###############.#.###########.#.###.#.#\n#.#.#.#.#.#.....#...#...#...#.....#...#.#...#.#...#...#.#...#.#...#...#.#.#.#.#.........#.#...#.#.....#.......#.......#.........#...#.#.....#\n#.#.#.#.#.#######.###.#.#.#.#####.###.#.###.#.#.#.#.#.#.#.###.#####.#####.#.#.#########.#.#.###.#######.#######.###############.#.###.#.#.###\n#.#.#...#.........#...#.#.#.....#...#...#.#.....#...#...#.#.#...#...#.....#.#.....#.....#...#.....#.....#.....#...#...#...#.....#...#.#.#...#\n#.#.#########.#######.#.#.#.###.###.###.#.###########.###.#.###.#.###.#.###.#####.#.#########.#.#.###.#.#.###.#.#.#.#.#." <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       %{?# => walls, ?S => [start], ?E => [finish]} =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.trim()

     

       29
       29
       +
         |> String.split("\n", trim: true)

     

       30
       30
       +
         |> Enum.with_index()

     

       31
       31
       +
         |> Enum.flat_map(fn {row, y} ->

     

       32
       32
       +
           row

     

       33
       33
       +
           |> String.trim()

     

       34
       34
       +
           |> String.to_charlist()

     

       35
       35
       +
           |> Enum.with_index()

     

       36
       36
       +
           |> Enum.map(fn {char, x} ->

     

       37
       37
       +
             {{x, y}, char}

     

       38
       38
       +
           end)

     

       39
       39
       +
         end)

     

       40
       40
       +
         |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

       41
       41
       +
       

     

       42
       42
       +
       walls = MapSet.new(walls)

     

       43
       43
       +
       ```

     

       44
       44
       +
       

     

       45
       45
       +
       <!-- livebook:{"output":true} -->

     

       46
       46
       +
       

     

       47
       47
       +
       ```

     

       48
       48
       +
       MapSet.new([

     

       49
       49
       +
         {76, 13},

     

       50
       50
       +
         {112, 138},

     

       51
       51
       +
         {38, 2},

     

       52
       52
       +
         {124, 56},

     

       53
       53
       +
         {83, 76},

     

       54
       54
       +
         {140, 11},

     

       55
       55
       +
         {100, 134},

     

       56
       56
       +
         {75, 140},

     

       57
       57
       +
         {103, 106},

     

       58
       58
       +
         {68, 134},

     

       59
       59
       +
         {124, 60},

     

       60
       60
       +
         {35, 30},

     

       61
       61
       +
         {2, 132},

     

       62
       62
       +
         {8, 50},

     

       63
       63
       +
         {78, 98},

     

       64
       64
       +
         {101, 62},

     

       65
       65
       +
         {98, 136},

     

       66
       66
       +
         {95, 56},

     

       67
       67
       +
         {74, 12},

     

       68
       68
       +
         {102, 74},

     

       69
       69
       +
         {22, 38},

     

       70
       70
       +
         {14, 86},

     

       71
       71
       +
         {12, 135},

     

       72
       72
       +
         {86, 10},

     

       73
       73
       +
         {29, 26},

     

       74
       74
       +
         {4, 81},

     

       75
       75
       +
         {31, 42},

     

       76
       76
       +
         {9, 34},

     

       77
       77
       +
         {137, 16},

     

       78
       78
       +
         {86, 138},

     

       79
       79
       +
         {90, 0},

     

       80
       80
       +
         {14, 122},

     

       81
       81
       +
         {120, 42},

     

       82
       82
       +
         {102, 57},

     

       83
       83
       +
         {84, 102},

     

       84
       84
       +
         {138, 124},

     

       85
       85
       +
         {0, 101},

     

       86
       86
       +
         {116, 96},

     

       87
       87
       +
         {54, 138},

     

       88
       88
       +
         {18, 134},

     

       89
       89
       +
         {82, 60},

     

       90
       90
       +
         {15, 92},

     

       91
       91
       +
         {58, 58},

     

       92
       92
       +
         {78, 75},

     

       93
       93
       +
         {75, 0},

     

       94
       94
       +
         {16, 73},

     

       95
       95
       +
         {76, 2},

     

       96
       96
       +
         {58, 84},

     

       97
       97
       +
         {138, ...},

     

       98
       98
       +
         {...},

     

       99
       99
       +
         ...

     

       100
       100
       +
       ])

     

       101
       101
       +
       ```

     

       102
       102
       +
       

     

       103
       103
       +
       ```elixir

     

       104
       104
       +
       {_, {w, h}} = Enum.min_max(walls)

     

       105
       105
       +
       

     

       106
       106
       +
       w = w + 1

     

       107
       107
       +
       h = h + 1

     

       108
       108
       +
       ```

     

       109
       109
       +
       

     

       110
       110
       +
       <!-- livebook:{"output":true} -->

     

       111
       111
       +
       

     

       112
       112
       +
       ```

     

       113
       113
       +
       141

     

       114
       114
       +
       ```

     

       115
       115
       +
       

     

       116
       116
       +
       ```elixir

     

       117
       117
       +
       put_in(%{}, [Access.key(:a, %{}), :b], 10)

     

       118
       118
       +
       ```

     

       119
       119
       +
       

     

       120
       120
       +
       <!-- livebook:{"output":true} -->

     

       121
       121
       +
       

     

       122
       122
       +
       ```

     

       123
       123
       +
       %{a: %{b: 10}}

     

       124
       124
       +
       ```

     

       125
       125
       +
       

     

       126
       126
       +
       ```elixir

     

       127
       127
       +
       defmodule Race.B do

     

       128
       128
       +
         @turns ~w'^ > v <'a

     

       129
       129
       +
       

     

       130
       130
       +
         defguardp score(elements, pos, dir) when :erlang.map_get({pos, dir}, elements).score

     

       131
       131
       +
       

     

       132
       132
       +
         def search_paths(start, finish, dir \\ :>, walls) when dir in @turns do

     

       133
       133
       +
           result = do_search([{0, [{start, dir}]}], walls, %{})

     

       134
       134
       +
       

     

       135
       135
       +
           %{paths: visited, score: score} = result[{finish, :>}]

     

       136
       136
       +
       

     

       137
       137
       +
           all = get_all(visited, result)

     

       138
       138
       +
       

     

       139
       139
       +
           {score, all}

     

       140
       140
       +
         end

     

       141
       141
       +
       

     

       142
       142
       +
         def get_all(path, seen) do

     

       143
       143
       +
           Enum.reduce(path, MapSet.new(), fn p, acc ->

     

       144
       144
       +
             path = MapSet.new(seen[p].paths, fn {p, _} -> p end)

     

       145
       145
       +
             MapSet.union(acc, path)

     

       146
       146
       +
           end)

     

       147
       147
       +
         end

     

       148
       148
       +
       

     

       149
       149
       +
         def do_search([], _, visited), do: visited

     

       150
       150
       +
       

     

       151
       151
       +
         def do_search([{cost, [{curr, dir} | _] = path} | rest], walls, visited)

     

       152
       152
       +
             when cost == score(visited, curr, dir) do

     

       153
       153
       +
           visited = Map.update!(visited, {curr, dir}, &%{&1 | paths: path})

     

       154
       154
       +
       

     

       155
       155
       +
           do_search(rest, walls, visited)

     

       156
       156
       +
         end

     

       157
       157
       +
       

     

       158
       158
       +
         def do_search([{cost, [{curr, prev} | _] = path} | rest], walls, visited)

     

       159
       159
       +
             when not is_map_key(visited, {curr, prev})

     

       160
       160
       +
             when cost < score(visited, curr, prev) do

     

       161
       161
       +
           visited = Map.put(visited, {curr, prev}, %{score: cost, paths: path})

     

       162
       162
       +
       

     

       163
       163
       +
           @turns

     

       164
       164
       +
           |> Enum.map(fn dir -> {cost + cost(prev, dir), [{step(curr, dir), dir} | path]} end)

     

       165
       165
       +
           |> Enum.reject(fn {_cost, [{pos, _} | _]} -> pos in walls end)

     

       166
       166
       +
           |> sort_merge(rest)

     

       167
       167
       +
           |> do_search(walls, visited)

     

       168
       168
       +
         end

     

       169
       169
       +
       

     

       170
       170
       +
         def do_search([{_, [_curr | _]} | rest], walls, visited),

     

       171
       171
       +
           do: do_search(rest, walls, visited)

     

       172
       172
       +
       

     

       173
       173
       +
         # Going straight is cheap and turning is costly

     

       174
       174
       +
         defp cost(a, a), do: 1

     

       175
       175
       +
         defp cost(_, _), do: 1001

     

       176
       176
       +
       

     

       177
       177
       +
         defp step({x, y}, :^), do: {x, y - 1}

     

       178
       178
       +
         defp step({x, y}, :>), do: {x + 1, y}

     

       179
       179
       +
         defp step({x, y}, :v), do: {x, y + 1}

     

       180
       180
       +
         defp step({x, y}, :<), do: {x - 1, y}

     

       181
       181
       +
       

     

       182
       182
       +
         defp sort_merge([], bs), do: bs

     

       183
       183
       +
         defp sort_merge(as, []), do: as

     

       184
       184
       +
       

     

       185
       185
       +
         defp sort_merge([a | as], [b | bs]) do

     

       186
       186
       +
           if a < b do

     

       187
       187
       +
             [a | sort_merge(as, [b | bs])]

     

       188
       188
       +
           else

     

       189
       189
       +
             [b | sort_merge([a | as], bs)]

     

       190
       190
       +
           end

     

       191
       191
       +
         end

     

       192
       192
       +
       end

     

       193
       193
       +
       ```

     

       194
       194
       +
       

     

       195
       195
       +
       <!-- livebook:{"output":true} -->

     

       196
       196
       +
       

     

       197
       197
       +
       ```

     

       198
       198
       +
       {:module, Race.B, <<70, 79, 82, 49, 0, 0, 23, ...>>, {:sort_merge, 2}}

     

       199
       199
       +
       ```

     

       200
       200
       +
       

     

       201
       201
       +
       ```elixir

     

       202
       202
       +
       {score, paths} = Race.B.search_paths(start, finish, walls)

     

       203
       203
       +
       ```

     

       204
       204
       +
       

     

       205
       205
       +
       <!-- livebook:{"output":true} -->

     

       206
       206
       +
       

     

       207
       207
       +
       ```

     

       208
       208
       +
       {134588,

     

       209
       209
       +
        MapSet.new([

     

       210
       210
       +
          {77, 129},

     

       211
       211
       +
          {17, 138},

     

       212
       212
       +
          {17, 137},

     

       213
       213
       +
          {37, 139},

     

       214
       214
       +
          {19, 137},

     

       215
       215
       +
          {100, 131},

     

       216
       216
       +
          {139, 68},

     

       217
       217
       +
          {14, 139},

     

       218
       218
       +
          {79, 128},

     

       219
       219
       +
          {19, 138},

     

       220
       220
       +
          {50, 137},

     

       221
       221
       +
          {139, 67},

     

       222
       222
       +
          {137, 104},

     

       223
       223
       +
          {137, 117},

     

       224
       224
       +
          {131, 49},

     

       225
       225
       +
          {107, 125},

     

       226
       226
       +
          {3, 127},

     

       227
       227
       +
          {135, 64},

     

       228
       228
       +
          {4, 131},

     

       229
       229
       +
          {21, 134},

     

       230
       230
       +
          {63, 127},

     

       231
       231
       +
          {101, 124},

     

       232
       232
       +
          {5, 139},

     

       233
       233
       +
          {125, 14},

     

       234
       234
       +
          {129, 48},

     

       235
       235
       +
          {139, 70},

     

       236
       236
       +
          {21, 119},

     

       237
       237
       +
          {17, 129},

     

       238
       238
       +
          {137, 120},

     

       239
       239
       +
          {17, 136},

     

       240
       240
       +
          {131, 120},

     

       241
       241
       +
          {32, 139},

     

       242
       242
       +
          {133, 21},

     

       243
       243
       +
          {102, 123},

     

       244
       244
       +
          {12, 111},

     

       245
       245
       +
          {123, 19},

     

       246
       246
       +
          {112, 127},

     

       247
       247
       +
          {73, 129},

     

       248
       248
       +
          {7, 116},

     

       249
       249
       +
          {127, 22},

     

       250
       250
       +
          {7, 137},

     

       251
       251
       +
          {9, 131},

     

       252
       252
       +
          {24, 133},

     

       253
       253
       +
          {137, 95},

     

       254
       254
       +
          {8, 133},

     

       255
       255
       +
          {134, 7},

     

       256
       256
       +
          {129, ...},

     

       257
       257
       +
          {...},

     

       258
       258
       +
          ...

     

       259
       259
       +
        ])}

     

       260
       260
       +
       ```

     

       261
       261
       +
       

     

       262
       262
       +
       ## Part 1

     

       263
       263
       +
       

     

       264
       264
       +
       ```elixir

     

       265
       265
       +
       score

     

       266
       266
       +
       ```

     

       267
       267
       +
       

     

       268
       268
       +
       <!-- livebook:{"output":true} -->

     

       269
       269
       +
       

     

       270
       270
       +
       ```

     

       271
       271
       +
       134588

     

       272
       272
       +
       ```

     

       273
       273
       +
       

     

       274
       274
       +
       ```elixir

     

       275
       275
       +
       Image.new!(w, h)

     

       276
       276
       +
       |> Image.mutate(fn img ->

     

       277
       277
       +
         for {x, y} <- walls do

     

       278
       278
       +
           Image.Draw.point(img, x, y, color: [128, 0, 0])

     

       279
       279
       +
         end

     

       280
       280
       +
       

     

       281
       281
       +
         for {x, y} <- paths do

     

       282
       282
       +
           Image.Draw.point(img, x, y, color: [0, 255, 0])

     

       283
       283
       +
         end

     

       284
       284
       +
       

     

       285
       285
       +
         img

     

       286
       286
       +
       end)

     

       287
       287
       +
       |> elem(1)

     

       288
       288
       +
       |> Image.resize!(6, interpolate: :nearest)

     

       289
       289
       +
       ```

     

       290
       290
       +
       

     

       291
       291
       +
       ## Part 2

     

       292
       292
       +
       

     

       293
       293
       +
       ```elixir

     

       294
       294
       +
       MapSet.size(paths)

     

       295
       295
       +
       ```

     

       296
       296
       +
       

     

       297
       297
       +
       <!-- livebook:{"output":true} -->

     

       298
       298
       +
       

     

       299
       299
       +
       ```

     

       300
       300
       +
       625

     

       301
       301
       +
       ```

     

       302
       302
       +
       

     

       303
       303
       +
       <!-- livebook:{"offset":9337,"stamp":{"token":"XCP.AVI7h-Nq9jZKx9YmL5qYerJkeKKqddhzKrKUkab-HwNDUM8nQItD1O_rd2ROsJxc96gwIzwrMAixlIdLeZAgOVhtCs22LZM44Wl1VwcpYbg3RNCdgwIjqGheO5YrCGrEGJc","version":2}} -->

+206

2024/day17.livemd

···

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       <!-- livebook:{"persist_outputs":true} -->

     

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       # Day 17

     

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       ```elixir

     

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       Mix.install([:kino_aoc])

     

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       ```

     

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       ## Section

     

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       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxNyIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

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       ```elixir

     

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       {:ok, puzzle_input} =

     

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         KinoAOC.download_puzzle("2024", "17", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

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       ```

     

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       <!-- livebook:{"output":true} -->

     

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       ```

     

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       {:ok,

     

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        "Register A: 66245665\nRegister B: 0\nRegister C: 0\n\nProgram: 2,4,1,7,7,5,1,7,4,6,0,3,5,5,3,0"}

     

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       ```

     

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       ```elixir

     

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       defmodule Computer do

     

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         @instructions ~w[adv bxl bst jnz bxc out bdv cdv]a

     

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                       |> Enum.with_index()

     

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                       |> Map.new(fn {name, ins} -> {ins, name} end)

     

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         def load(opcodes) do

     

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           opcodes

     

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           |> Enum.chunk_every(2)

     

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           |> Enum.map(fn [opcode, op] ->

     

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             {@instructions[opcode], op}

     

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           end)

     

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           |> List.to_tuple()

     

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         end

     

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       +
       

     

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         def process(program, reg) do

     

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           reg = Map.merge(%{a: 0, b: 0, c: 0}, Map.new(reg))

     

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           do_process(program, 0, reg, [])

     

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         end

     

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         defp do_process(program, idx, _reg, out) when idx >= tuple_size(program) do

     

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           Enum.reverse(out)

     

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         end

     

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         defp do_process(program, idx, reg, out) do

     

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           ins = elem(program, idx)

     

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           case compute(ins, reg) do

     

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             new_reg when is_map(new_reg) ->

     

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               do_process(program, idx + 1, new_reg, out)

     

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             {:out, op} ->

     

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               do_process(program, idx + 1, reg, [op | out])

     

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             {:jump, op} ->

     

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               do_process(program, op, reg, out)

     

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           end

     

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         end

     

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         def compute({:adv, op}, reg),

     

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           do: %{reg | a: div(reg.a, 2 ** combo(op, reg))}

     

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         def compute({:bdv, op}, reg),

     

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           do: %{reg | b: div(reg.a, 2 ** combo(op, reg))}

     

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         def compute({:cdv, op}, reg),

     

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           do: %{reg | c: div(reg.a, 2 ** combo(op, reg))}

     

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         def compute({:bxl, op}, reg),

     

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           do: %{reg | b: Bitwise.bxor(reg.b, op)}

     

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         def compute({:bxc, _op}, reg),

     

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           do: %{reg | b: Bitwise.bxor(reg.b, reg.c)}

     

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         def compute({:bst, op}, reg),

     

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           do: %{reg | b: Bitwise.band(combo(op, reg), 0b111)}

     

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         def compute({:out, op}, reg),

     

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           do: {:out, Bitwise.band(combo(op, reg), 0b111)}

     

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         def compute({:jnz, op}, reg) do

     

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           if reg.a != 0 do

     

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             {:jump, op}

     

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           else

     

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             reg

     

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           end

     

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         end

     

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         defp combo(v, _) when v in 0..3, do: v

     

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         defp combo(4, %{a: a}), do: a

     

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         defp combo(5, %{b: b}), do: b

     

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         defp combo(6, %{c: c}), do: c

     

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       end

     

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       ```

     

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       <!-- livebook:{"output":true} -->

     

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       ```

     

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       {:module, Computer, <<70, 79, 82, 49, 0, 0, 21, ...>>, {:combo, 2}}

     

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       +
       ```

     

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       +
       

     

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       ```elixir

     

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       [

     

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         "Register A: " <> a,

     

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         "Register B: " <> b,

     

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         "Register C: " <> c,

     

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         "Program: " <> raw_code

     

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       ] = String.split(puzzle_input, "\n", trim: true)

     

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       reg = %{

     

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         a: String.to_integer(a),

     

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         b: String.to_integer(b),

     

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         c: String.to_integer(c)

     

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       } |> dbg()

     

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       code =

     

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         raw_code

     

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         |> String.split(",")

     

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         |> Enum.map(&String.to_integer/1)

     

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       program = Computer.load(code)

     

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       ```

     

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       <!-- livebook:{"output":true} -->

     

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       ```

     

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       %{a: 66245665, b: 0, c: 0}

     

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       ```

     

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       <!-- livebook:{"output":true} -->

     

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       ```

     

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       {{:bst, 4}, {:bxl, 7}, {:cdv, 5}, {:bxl, 7}, {:bxc, 6}, {:adv, 3}, {:out, 5}, {:jnz, 0}}

     

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       +
       ```

     

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       +
       

     

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       ## Part 1

     

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       +
       

     

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       +
       ```elixir

     

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       out = Computer.process(program, reg)

     

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       +
       ```

     

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       +
       

     

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       <!-- livebook:{"output":true} -->

     

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       +
       

     

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       ```

     

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       [1, 4, 6, 1, 6, 4, 3, 0, 3]

     

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       +
       ```

     

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       +
       

     

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       +
       ```elixir

     

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       IO.puts(Enum.join(out, ","))

     

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       +
       ```

     

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       +
       

     

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       <!-- livebook:{"output":true} -->

     

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       +
       

     

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       ```

     

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       1,4,6,1,6,4,3,0,3

     

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       +
       ```

     

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       +
       

     

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       <!-- livebook:{"output":true} -->

     

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       +
       

     

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       ```

     

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       :ok

     

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       +
       ```

     

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       ## Part 2

     

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       +
       

     

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       +
       ```elixir

     

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       +
       defmodule Quine do

     

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         def find(program, target) do

     

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           do_find(program, Enum.reverse(target), Enum.to_list(0..7))

     

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         end

     

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       +
       

     

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         def do_find(_program, [], out), do: out

     

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       +
       

     

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         def do_find(program, [n | rest], out) do

     

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           potential =

     

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       +
             for a <- out,

     

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                 i <- 0..7,

     

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                 hd(Computer.process(program, a: a * 8 + i)) == n,

     

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                 do: a * 8 + i

     

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           do_find(program, rest, potential)

     

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         end

     

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       end

     

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       ```

     

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       <!-- livebook:{"output":true} -->

     

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       +
       

     

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       ```

     

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       {:module, Quine, <<70, 79, 82, 49, 0, 0, 10, ...>>, {:do_find, 3}}

     

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       +
       ```

     

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       +
       

     

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       +
       ```elixir

     

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       Quine.find(program, code) |> Enum.min()

     

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       +
       ```

     

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       <!-- livebook:{"output":true} -->

     

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       ```

     

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       265061364597659

     

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       ```

     

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       <!-- livebook:{"offset":4021,"stamp":{"token":"XCP.PwUWTErrjClVJj6ZS87ZLrfbzleELwxqD__HBvfB1y_Yc633Wj72_Jigo2Z3T7V2ONi1nVguQ_AE_NSyLCF5sjSmWldUKuW294o_wsQqiM_gKhXOjSLzJOnslN9iIEFIEww","version":2}} -->

+194

2024/day18.livemd

···

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       # Day 18

     

       4
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       +
       

     

       5
       5
       +
       ```elixir

     

       6
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       +
       Mix.install([:kino_aoc, :image])

     

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       +
       ```

     

       8
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       ## Section

     

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       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxOCIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

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       +
       ```elixir

     

       14
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       +
       {:ok, puzzle_input} =

     

       15
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       +
         KinoAOC.download_puzzle("2024", "18", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

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       +
       ```

     

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       <!-- livebook:{"output":true} -->

     

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       +
       

     

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       ```

     

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       {:ok,

     

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       22
       +
        "21,9\n69,53\n31,24\n2,9\n50,53\n2,5\n3,44\n69,49\n25,26\n50,31\n68,41\n54,67\n19,8\n11,9\n9,29\n1,31\n13,12\n28,5\n69,41\n51,66\n53,43\n65,35\n40,67\n43,13\n21,34\n49,3\n65,61\n25,9\n39,21\n59,37\n11,24\n9,30\n63,62\n41,69\n6,29\n68,47\n45,1\n9,1\n11,14\n59,19\n67,54\n12,5\n41,44\n59,45\n3,28\n57,42\n7,25\n43,11\n31,19\n9,6\n53,60\n29,8\n53,67\n17,1\n11,17\n31,3\n55,35\n2,21\n67,61\n37,5\n6,1\n51,24\n39,1\n31,1\n69,58\n61,19\n49,63\n40,21\n28,25\n59,59\n66,69\n30,1\n7,5\n53,49\n4,17\n39,23\n23,20\n62,67\n51,36\n55,39\n41,3\n57,30\n18,7\n6,37\n29,25\n55,48\n37,16\n65,69\n21,5\n43,48\n3,11\n3,9\n63,39\n23,23\n43,67\n47,3\n69,47\n67,53\n65,24\n67,52\n35,20\n46,45\n57,26\n15,32\n35,68\n15,16\n41,1\n63,29\n15,3\n15,18\n51,50\n60,43\n50,1\n35,12\n41,10\n58,39\n27,18\n50,69\n55,40\n2,3\n51,47\n1,11\n16,9\n23,9\n19,7\n29,12\n37,3\n1,15\n11,1\n25,11\n65,56\n37,70\n60,41\n48,69\n62,29\n53,38\n12,35\n67,42\n49,67\n31,5\n39,7\n65,43\n5,25\n23,24\n43,68\n11,11\n9,32\n62,39\n69,39\n51,46\n38,21\n67,37\n5,26\n62,19\n27,21\n48,51\n55,62\n11,33\n25,4\n13,20\n61,58\n62,55\n41,66\n11,40\n16,7\n9,17\n67,65\n1,1\n9,33\n7,35\n1,3\n11,4\n29,21\n47,47\n61,67\n41,70\n42,65\n55,47\n54,49\n36,13\n61,36\n18,23\n26,23\n45,5\n9,18\n61,27\n36,21\n59,32\n4,9\n6,35\n51,23\n1,17\n12,11\n65,67\n41,65\n37,65\n1,24\n21,8\n59,28\n17,14\n63,68\n20,19\n17,10\n63,69\n57,44\n55,56\n45,64\n25,27\n27,4\n22,23\n5,13\n19,14\n47,46\n49,4\n21,15\n63,58\n60,31\n25,28\n6,3\n61,38\n33,5\n58,37\n11,32\n21,7\n44,61\n55,45\n55,37\n35,22\n10,15\n36,5\n19,11\n59,31\n33,19\n30,5\n69,69\n69,63\n57,69\n5,33\n60,27\n29,7\n57,43\n61,61\n3,26\n13,33\n57,59\n66,39\n63,27\n33,11\n51,1\n52,67\n5,29\n35,3\n17,2\n9,31\n37,24\n61,23\n9,5\n68,35\n21,28\n2,25\n51,48\n68,49\n4,19\n43,66\n7,34\n13,15\n36,1\n42,63\n13,0\n23,7\n48,47\n56,31\n55,43\n47,45\n18,15\n56,45\n61,64\n48,45\n69,65\n40,11\n51,68\n51,51\n53,46\n3,30\n49,62\n4,13\n17,27\n38,69\n41,0\n5,23\n65,32\n9,35\n55,21\n65,55\n51,39\n67,51\n5,9\n39,5\n58,49\n21,17\n63,41\n21,18\n57,65\n53,51\n2,13\n53,0\n53,6\n27,17\n55,59\n61,42\n27,7\n25,25\n39,13\n62,53\n51,44\n2,27\n19,17\n58,65\n8,1\n30,23\n14,5\n33,3\n43,65\n18,27\n35,7\n11,35\n12,29\n57,68\n59,63\n44,19\n36,25\n68,37\n15,19\n53,39\n62,69\n35,4\n61,55\n59,43\n23,17\n69,45\n18,5\n50,59\n39,6\n69,32\n17,5\n11,8\n21,2\n39,4\n64,65\n33,2\n17,22\n33,50\n25,24\n44,51\n31,7\n11,38\n11,25\n63,59\n25,21\n42,7\n8,11\n33,9\n45,63\n62,63\n33,4\n66,59\n61,29\n5,27\n59,27\n55,20\n38,9\n8,7\n51,3\n23,1\n53,65\n69,55\n1,34\n70,49\n61,57\n22,9\n17,26\n17,12\n61,69\n49,43\n9,28\n33,26\n15,35\n13,34\n55,27\n68,45\n45,61\n59,47\n13,29\n59,33\n65,53\n10,1\n35,21\n13,27\n28,1\n23,10\n61,37\n69,57\n23,21\n5,28\n57,48\n41,21\n11,13\n20,11\n1,21\n61,66\n66,47\n63,26\n5,15\n3,20\n17,4\n43,5\n16,29\n63,44\n63,55\n55,69\n5,22\n37,11\n50,39\n59,39\n25,16\n48,1\n43,60\n13,6\n49,37\n3,32\n57,23\n46,69\n2,35\n37,1\n53,27\n31,22\n63,36\n46,43\n68,57\n45,67\n32,9\n48,65\n15,15\n8,29\n13,1\n55,41\n65,65\n13,31\n49,69\n19,6\n29,19\n32,23\n49,41\n15,24\n65,22\n15,33\n6,21\n7,9\n69,64\n63,23\n5,21\n15,1\n44,1\n11,27\n63,34\n15,13\n39,9\n63,20\n58,29\n28,21\n7,37\n39,65\n41,16\n21,6\n49,47\n47,61\n50,63\n23,15\n68,67\n64,57\n19,13\n69,61\n1,22\n27,3\n28,13\n19,31\n23,2\n3,31\n25,6\n61,47\n51,63\n59,64\n27,2\n7,33\n63,63\n65,42\n5,12\n12,15\n27,9\n15,7\n6,17\n17,17\n15,2\n59,61\n63,47\n57,33\n13,17\n47,67\n11,26\n20,3\n13,7\n17,33\n10,5\n57,32\n58,53\n7,18\n66,65\n6,5\n11,5\n41,9\n21,21\n69,43\n11,20\n41,14\n38,3\n67,69\n15,17\n45,58\n51,61\n54,23\n49,39\n59,29\n53,63\n45,69\n16,1\n55,51\n21,13\n56,47\n63,40\n63,37\n37,19\n43,3\n7,17\n27,5\n14,25\n17,3\n44,69\n31,8\n14,9\n14,7\n63,45\n4,1\n49,34\n19,44\n46,53\n38,17\n33,0\n50,55\n27,25\n63,21\n19,12\n35,10\n54,3\n65,50\n47,62\n38,65\n61,39\n33,1\n65,52\n5,5\n0,3\n63,33\n30,27\n29,27\n29,1\n48,67\n33,23\n46,5\n60,35\n39,14\n59,46\n51,49\n64,21\n69,60\n3,3\n59,58\n9,36\n9,37\n48,41\n23,5\n7,3\n61,65\n61,22\n3,15\n4,37\n43,20\n66,45\n69,66\n43,12\n54,43\n52,49\n15,23\n33,21\n36,67\n61,24\n5,7\n37,7\n60,55\n53,70\n52,1\n21,33\n53,69\n67,43\n61,34\n6,31\n55,55\n59,40\n16,17\n65,25\n24,29\n59,21\n66,63\n61,41\n17,24\n0,15\n17,19\n1,13\n23,3\n49,45\n39,2\n59,49\n31,25\n65,40\n7,7\n70,43\n57,63\n65,54\n18,1\n41,15\n25,19\n33,18\n5,24\n13,3\n64,37\n43,7\n31,9\n30,11\n56,63\n65,34\n67,39\n17,18\n65,37\n49,56\n59,25\n7,11\n65,38\n37,18\n5,3\n21,22\n47,69\n19,9\n70,39\n15,14\n40,3\n5,31\n19,21\n55,34\n67,49\n45,11\n17,23\n41,5\n33,6\n37,10\n55,2\n17,9\n57,39\n5,1\n9,10\n17,7\n60,23\n55,68\n5,11\n63,67\n59,65\n7,19\n51,56\n26,1\n30,3\n15,20\n19,15\n3,21\n59,51\n11,7\n61,26\n19,23\n22,11\n25,8\n18,17\n27,26\n17,29\n7,13\n65,33\n44,5\n22,13\n56,65\n24,19\n25,17\n55,66\n65,39\n32,19\n3,19\n9,15\n54,63\n55,23\n61,59\n21,11\n46,39\n57,40\n65,19\n65,59\n65,48\n64,47\n32,21\n1,5\n15,11\n65,23\n4,2" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       bytes =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.map(fn row ->

     

       30
       30
       +
           [x, y] = String.split(row, ",")

     

       31
       31
       +
       

     

       32
       32
       +
           {String.to_integer(x), String.to_integer(y)}

     

       33
       33
       +
         end)

     

       34
       34
       +
       ```

     

       35
       35
       +
       

     

       36
       36
       +
       <!-- livebook:{"output":true} -->

     

       37
       37
       +
       

     

       38
       38
       +
       ```

     

       39
       39
       +
       [

     

       40
       40
       +
         {21, 9},

     

       41
       41
       +
         {69, 53},

     

       42
       42
       +
         {31, 24},

     

       43
       43
       +
         {2, 9},

     

       44
       44
       +
         {50, 53},

     

       45
       45
       +
         {2, 5},

     

       46
       46
       +
         {3, 44},

     

       47
       47
       +
         {69, 49},

     

       48
       48
       +
         {25, 26},

     

       49
       49
       +
         {50, 31},

     

       50
       50
       +
         {68, 41},

     

       51
       51
       +
         {54, 67},

     

       52
       52
       +
         {19, 8},

     

       53
       53
       +
         {11, 9},

     

       54
       54
       +
         {9, 29},

     

       55
       55
       +
         {1, 31},

     

       56
       56
       +
         {13, 12},

     

       57
       57
       +
         {28, 5},

     

       58
       58
       +
         {69, 41},

     

       59
       59
       +
         {51, 66},

     

       60
       60
       +
         {53, 43},

     

       61
       61
       +
         {65, 35},

     

       62
       62
       +
         {40, 67},

     

       63
       63
       +
         {43, 13},

     

       64
       64
       +
         {21, 34},

     

       65
       65
       +
         {49, 3},

     

       66
       66
       +
         {65, 61},

     

       67
       67
       +
         {25, 9},

     

       68
       68
       +
         {39, 21},

     

       69
       69
       +
         {59, 37},

     

       70
       70
       +
         {11, 24},

     

       71
       71
       +
         {9, 30},

     

       72
       72
       +
         {63, 62},

     

       73
       73
       +
         {41, 69},

     

       74
       74
       +
         {6, 29},

     

       75
       75
       +
         {68, 47},

     

       76
       76
       +
         {45, 1},

     

       77
       77
       +
         {9, 1},

     

       78
       78
       +
         {11, 14},

     

       79
       79
       +
         {59, 19},

     

       80
       80
       +
         {67, 54},

     

       81
       81
       +
         {12, 5},

     

       82
       82
       +
         {41, 44},

     

       83
       83
       +
         {59, 45},

     

       84
       84
       +
         {3, 28},

     

       85
       85
       +
         {57, 42},

     

       86
       86
       +
         {7, 25},

     

       87
       87
       +
         {43, 11},

     

       88
       88
       +
         {31, ...},

     

       89
       89
       +
         {...},

     

       90
       90
       +
         ...

     

       91
       91
       +
       ]

     

       92
       92
       +
       ```

     

       93
       93
       +
       

     

       94
       94
       +
       ```elixir

     

       95
       95
       +
       Image.new!(71, 71, color: :forestgreen)

     

       96
       96
       +
       |> Image.mutate(fn img ->

     

       97
       97
       +
         for x <- 0..70, y <- 0..70, {x, y} in Enum.take(bytes, 1024) do

     

       98
       98
       +
           Image.Draw.point(img, x, y, color: :firebrick)

     

       99
       99
       +
         end

     

       100
       100
       +
       

     

       101
       101
       +
         img

     

       102
       102
       +
       end)

     

       103
       103
       +
       |> elem(1)

     

       104
       104
       +
       |> Image.resize!(4, interpolate: :nearest)

     

       105
       105
       +
       ```

     

       106
       106
       +
       

     

       107
       107
       +
       ```elixir

     

       108
       108
       +
       defmodule Memory do

     

       109
       109
       +
         @d [{-1, 0}, {1, 0}, {0, -1}, {0, 1}]

     

       110
       110
       +
         def find_path(from, to, bytes), do: do_find([{0, from}], to, MapSet.new(bytes), %{})

     

       111
       111
       +
       

     

       112
       112
       +
         def do_find([], _, _, _), do: :none

     

       113
       113
       +
       

     

       114
       114
       +
         def do_find([{dist, to} | _], to, _, _visited), do: dist

     

       115
       115
       +
       

     

       116
       116
       +
         def do_find([{dist, {x, y} = p} | rest], {w, h} = to, bytes, visited)

     

       117
       117
       +
             when not is_map_key(visited, p)

     

       118
       118
       +
             when dist < :erlang.map_get(p, visited)

     

       119
       119
       +
         do

     

       120
       120
       +
           visited = Map.put(visited, p, dist)

     

       121
       121
       +
       

     

       122
       122
       +
           next =

     

       123
       123
       +
             for {dx, dy} <- @d,

     

       124
       124
       +
                 (x + dx) in 0..w,

     

       125
       125
       +
                 (y + dy) in 0..h,

     

       126
       126
       +
                 p = {x + dx, y + dy},

     

       127
       127
       +
                 p not in bytes,

     

       128
       128
       +
                 not is_map_key(visited, p),

     

       129
       129
       +
                 do: {dist + 1, p}

     

       130
       130
       +
       

     

       131
       131
       +
           next

     

       132
       132
       +
           |> Enum.concat(rest)

     

       133
       133
       +
           |> Enum.sort()

     

       134
       134
       +
           |> do_find(to, bytes, visited)

     

       135
       135
       +
         end

     

       136
       136
       +
       

     

       137
       137
       +
         def do_find([_ | rest], to, bytes, visited), do: do_find(rest, to, bytes, visited)

     

       138
       138
       +
       end

     

       139
       139
       +
       ```

     

       140
       140
       +
       

     

       141
       141
       +
       <!-- livebook:{"output":true} -->

     

       142
       142
       +
       

     

       143
       143
       +
       ```

     

       144
       144
       +
       {:module, Memory, <<70, 79, 82, 49, 0, 0, 13, ...>>, {:do_find, 4}}

     

       145
       145
       +
       ```

     

       146
       146
       +
       

     

       147
       147
       +
       ## Part 1

     

       148
       148
       +
       

     

       149
       149
       +
       ## Part 1

     

       150
       150
       +
       

     

       151
       151
       +
       ```elixir

     

       152
       152
       +
       Memory.find_path({0, 0}, {70, 70}, Enum.take(bytes, 1024))

     

       153
       153
       +
       ```

     

       154
       154
       +
       

     

       155
       155
       +
       <!-- livebook:{"output":true} -->

     

       156
       156
       +
       

     

       157
       157
       +
       ```

     

       158
       158
       +
       250

     

       159
       159
       +
       ```

     

       160
       160
       +
       

     

       161
       161
       +
       ## Part 2

     

       162
       162
       +
       

     

       163
       163
       +
       ```elixir

     

       164
       164
       +
       {x, y} =

     

       165
       165
       +
         bytes

     

       166
       166
       +
         |> Enum.reverse()

     

       167
       167
       +
         |> Stream.unfold(fn

     

       168
       168
       +
           [] -> nil

     

       169
       169
       +
           [_ | rest] = curr -> {curr, rest}

     

       170
       170
       +
         end)

     

       171
       171
       +
         |> Enum.find_value(fn [pos | fallen] ->

     

       172
       172
       +
           path = Memory.find_path({0, 0}, {70, 70}, fallen)

     

       173
       173
       +
       

     

       174
       174
       +
           if path != :none do

     

       175
       175
       +
             pos

     

       176
       176
       +
           end

     

       177
       177
       +
         end)

     

       178
       178
       +
       

     

       179
       179
       +
       IO.puts("#{x},#{y}")

     

       180
       180
       +
       ```

     

       181
       181
       +
       

     

       182
       182
       +
       <!-- livebook:{"output":true} -->

     

       183
       183
       +
       

     

       184
       184
       +
       ```

     

       185
       185
       +
       56,8

     

       186
       186
       +
       ```

     

       187
       187
       +
       

     

       188
       188
       +
       <!-- livebook:{"output":true} -->

     

       189
       189
       +
       

     

       190
       190
       +
       ```

     

       191
       191
       +
       :ok

     

       192
       192
       +
       ```

     

       193
       193
       +
       

     

       194
       194
       +
       <!-- livebook:{"offset":7984,"stamp":{"token":"XCP.CPT4l_BNbZGxGbR_fK_dYfzmCSPzRQfyiJPfaGWsNChhlNQI36bgn8XXEOmsc56qlDi2H-j-H4aYpxwTYXzlirEAyckZaTUuHdujjNaTLq1pQEjB3uTTMbVmMkdf1KvN3g0","version":2}} -->

+126

2024/day19.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 19

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxOSIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "19", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "rrbb, rgrb, rbbwbw, ruw, grwb, wbg, rrggu, wugbb, gwr, rrgu, wbbb, bwrgugb, rgww, brrw, gwwg, brgbb, ubbbu, rbgruw, bwub, rru, grbu, grw, bwrbr, wrwbwu, bgbr, urrb, bbb, guggb, gwuwuw, ubu, wbr, bb, ubwwrb, bruuwu, buw, wrr, gbgrr, ggw, ru, wub, uub, gbrw, uwrwrb, uwuu, wbbu, gwu, brrr, grggur, wugrbrw, rwuurgg, wrbg, wuugrgw, brr, wrgwu, rwwuur, wgug, guu, brru, bgr, buwruw, bbg, bw, brwuwbb, buwbrgrb, wrwuw, ubb, rgu, wru, ugw, rruubrr, bwur, rrb, uwg, wwbbuwu, rbw, uwrgbr, ubuw, uurwr, uggw, uuguur, guuww, bbrgw, ubuwbuu, buwgg, gru, uuu, u, wgguw, bruu, bu, gwurrw, rbgwur, gubg, ubgrubw, buwrgw, uu, rwgw, rrw, wgru, gwrb, bgguu, gwugwu, urrbg, ruwwb, wuw, wwgg, wwbbu, gggb, rgrruwrw, uugr, rwb, rggw, gbr, guuurru, wurubggw, gww, wuugb, rbbww, urwgb, wrruurr, guuurgg, bwbgbg, bubwb, ggrwwg, gugr, uwrrr, guurbu, uruw, gbguruu, grb, bwr, wrubggr, rbu, wgwgru, buuww, gub, wu, uw, rrbrb, ur, wrgbb, gbbu, wgw, ggwbgwb, wb, urwr, uggwbwu, wwwg, rbru, bwbw, brb, wbugw, r, gbb, rw, bru, wbbwbr, gwww, wgrr, rugg, bgrbrub, w, gwwb, wrwgu, wwgb, uwgbgwwb, wrrwb, ubw, rr, gbbuug, bbr, wugb, rbuww, uur, wgur, ugg, wwu, wwrww, uuwur, rwbbww, gbu, bgbuur, rrbugguw, ugrgwg, wurruu, rrrgww, ggbbgbb, bgbb, brrb, rwwr, brwwr, ubrbru, uburwwb, ggwu, rwbgrbu, bbwuwbr, urwggbwr, bbrgu, wbbuww, rbwwuwr, gu, brbb, wbwgu, ugbrrguw, urbu, gbgbbrub, gbuuuww, rww, gwwgwwg, buwu, bur, uubrw, rur, rgurr, rwbgrg, urr, wugw, wuur, wuub, wbgb, bgb, uubrbur, rrbugbu, ugru, guwr, uwu, uru, wbw, wugrwgb, ggwg, guw, ubbbg, grbuwg, gw, wgb, bbrbwgub, gr, rbruu, urwwu, gbuwbw, bug, rgrgb, uwr, wrw, urb, wgbw, rbbgr, rwww, wbubur, buubw, ruwgwbug, wwwgggub, uuwrwbww, burr, rubg, wgub, bww, urbuubb, bubugrb, rgwbbw, rb, ggu, gwg, rgw, ruwggbg, wrrwbg, gur, wwbgugb, ruu, rrgg, rwrr, uwb, bwbbwbg, rbgg, rwgwg, rrgrwg, gb, bgbg, urubwugb, ruww, grbbg, gwb, bugrr, wgwr, wuug, b, gbwgr, uugw, wwr, wuu, ggr, bbwb, ubbbwrg, wugbw, gguuw, bbw, ugr, wbbrrbu, grbub, ubuwuw, bwgw, bggw, bwu, ub, bwubw, rgru, brg, uruwr, rug, wrwwuubg, brw, wggurb, br, wgr, gug, wrww, gg, uuw, bguwbru, rrrw, uubgb, gbww, buu, rbbuw, bgru, ubbwr, bg, gbgrww, wrg, ugubw, rgrg, bwbbgw, ggubrwbg, uurgwg, gbw, ww, wr, wbgu, bbu, brrwb, wug, uurug, rgb, gwbwbgg, uuubg, ugub, bruw, rub, rgggrr, ruubrwuw, brguru, wbrbg, rrwr, bgrwbbr, ugu, grwbb, rgg, wwg, rgbuwr, wuwur, bbgub, ubg, rrg, wrur, bggbr, wgg, bbwbbru, bwwbrgu, rugrr, rgwbu, ugubwbgu, wwb, ggg, bwwu, gwuguu, rrwgwg, uuwu, rrug, bgwruw, brrgrb, rurg, bugb, grwbg, rwr, urug, rwg, bgg, gbggr, rrr, gbbrw, wgu, bwbg, bbgurggg, wuwguw, wwwuru, grg, grggbw, rubu, burw, grr, bgbbw, wgrbgg, rwrww, gwurgr, bruww, bub, wbu, rbb, uwgbb, rgr, ugb, buubb, wg, wwwgr, bgw, wbwr, wuwruu, wrgrrrw, rbr, wuwwr, wrwb, ggwgwbrw, urw, uwrubb, wuwg, wguu, ugwwuw, ggb, rrggr, wrb, urwgub, bgwwrw, rwu, wurug, gbgu, brrwbb, wwbub, uwrgw, bwb, ubr, uww, gbg, wgrugwbb, bwg, wbb, bbwwgr, www\n\nbgrwwwbuugwrruurrwgbgrbwrrruurgbuwbgbwuuruubwuubruwgubw\nugguwugrwrgwruwguuwurubggwgwbrwwwubburwrburg\nrbbbgwgbbbrrrubguwggubwburbrrwgbbuwgbwwuwrbwugurbbwuubruu\nwuuuwbwuwuwgbugwggwwuwurrgwubbugbbuuubbrwbgbubr\nubbrubwuurgbuwgguubgbrguwbguuwbwruguubwbbgguwrrgwwbubwb\nrbbwuwrrrgwrwwbwgwrruubggrrggbbgwuwbrgubgwwrbwwbggwwrwrwgb\nbgggbruguuguwwwurruwgubrwrruubgbrbwwwgrrgurb\ngubugrguurwgwwubrwguggbgbbuubbubuwurgbgugrubgrgggruugw\ngwrggrbrrrbwwrrggwrwggrwuguubgggrrwwrggubruwrrgbubg\nbgubggrrbuwwwggbwbrbguwuwwbburgururuguwuwgbguuwwwub\nuuggggggurgrgugugrwbrbrwururwurburrurggwgwbrwrwwwuuugwu\nuuubwrurwwrbbgrbrrbuwbrbwrurgrrwwwgugugrbugwu\nwbbbwrgbwrbgggwgbbwbbwrwbbbwwbbwbgbwuwubbrrggurbugwrgwbuug\nuruwrwugbbwruugrguuwrrbbguwwrrrruubrwgwrruug\nbguurwugrrgurubbuwbrgrbwggrrgrwguwgrwubgbubbw\nwwgubbbbgggrgrwwwuwwwbbbbbbrwwwguggrwurgwbguwgwubww\nwgbrwgbbgwuuwbwwuwwrruruwururwbwbguuwgbrgw\nwbrgwrrurwuubrruruwwbgwrgwrbbrwrbbbrwwbwwrgwbr\nggwgwrrwwruubruwgbwwuwrbwbgurubwugbbwurwbwrbuggubwwww\nbuurbrbwrgbgbgwgwbruwubbbgwgguruggrrwwgwgwuruwggrbbbbbugw\nbubgwugwubwwwgrurgurbubwbguurrwbubuubggbgbrbuwgrwbbgbuwr\ngggbbwgugrguguwubrbwbrgwwbubwuwwgbwrbrgbuugwrrb\nbgguuuwwbrubgrubwrwugbbwwrruwrgrrubwwuubgwrwwrgrgbgbg\nw" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       [towels | patterns] = String.split(puzzle_input, "\n", trim: true)

     

       27
       27
       +
       

     

       28
       28
       +
       towels =

     

       29
       29
       +
         towels

     

       30
       30
       +
         |> String.split(", ")

     

       31
       31
       +
       ```

     

       32
       32
       +
       

     

       33
       33
       +
       <!-- livebook:{"output":true} -->

     

       34
       34
       +
       

     

       35
       35
       +
       ```

     

       36
       36
       +
       ["rrbb", "rgrb", "rbbwbw", "ruw", "grwb", "wbg", "rrggu", "wugbb", "gwr", "rrgu", "wbbb", "bwrgugb",

     

       37
       37
       +
        "rgww", "brrw", "gwwg", "brgbb", "ubbbu", "rbgruw", "bwub", "rru", "grbu", "grw", "bwrbr",

     

       38
       38
       +
        "wrwbwu", "bgbr", "urrb", "bbb", "guggb", "gwuwuw", "ubu", "wbr", "bb", "ubwwrb", "bruuwu", "buw",

     

       39
       39
       +
        "wrr", "gbgrr", "ggw", "ru", "wub", "uub", "gbrw", "uwrwrb", "uwuu", "wbbu", "gwu", "brrr",

     

       40
       40
       +
        "grggur", "wugrbrw", "rwuurgg", ...]

     

       41
       41
       +
       ```

     

       42
       42
       +
       

     

       43
       43
       +
       ```elixir

     

       44
       44
       +
       defmodule Towels do

     

       45
       45
       +
         def count(target, towels) do

     

       46
       46
       +
           possible =

     

       47
       47
       +
             towels

     

       48
       48
       +
             |> Enum.filter(&String.contains?(target, &1))

     

       49
       49
       +
             |> Enum.sort()

     

       50
       50
       +
       

     

       51
       51
       +
           do_count([{target, 1}], possible)

     

       52
       52
       +
         end

     

       53
       53
       +
       

     

       54
       54
       +
         defp do_count([], _), do: 0

     

       55
       55
       +
         defp do_count([{"", count} | _], _), do: count

     

       56
       56
       +
       

     

       57
       57
       +
         defp do_count([{target, score} | rest], towels) do

     

       58
       58
       +
           towels

     

       59
       59
       +
           |> Enum.reduce(rest, fn h, acc ->

     

       60
       60
       +
             case target do

     

       61
       61
       +
               ^h <> rest -> insert(acc, {rest, score})

     

       62
       62
       +
               _ -> acc

     

       63
       63
       +
             end

     

       64
       64
       +
           end)

     

       65
       65
       +
           |> do_count(towels)

     

       66
       66
       +
         end

     

       67
       67
       +
       

     

       68
       68
       +
         defp insert([{longest, _} = top | t], {text, _} = new)

     

       69
       69
       +
              when byte_size(text) < byte_size(longest) do

     

       70
       70
       +
           [top | insert(t, new)]

     

       71
       71
       +
         end

     

       72
       72
       +
       

     

       73
       73
       +
         defp insert([{same, count} | t], {same, add}),

     

       74
       74
       +
           do: [{same, count + add} | t]

     

       75
       75
       +
       

     

       76
       76
       +
         defp insert(t, new), do: [new | t]

     

       77
       77
       +
       end

     

       78
       78
       +
       ```

     

       79
       79
       +
       

     

       80
       80
       +
       <!-- livebook:{"output":true} -->

     

       81
       81
       +
       

     

       82
       82
       +
       ```

     

       83
       83
       +
       {:module, Towels, <<70, 79, 82, 49, 0, 0, 12, ...>>, {:insert, 2}}

     

       84
       84
       +
       ```

     

       85
       85
       +
       

     

       86
       86
       +
       ```elixir

     

       87
       87
       +
       ways = Enum.map(patterns, &Towels.count(&1, towels))

     

       88
       88
       +
       ```

     

       89
       89
       +
       

     

       90
       90
       +
       <!-- livebook:{"output":true} -->

     

       91
       91
       +
       

     

       92
       92
       +
       ```

     

       93
       93
       +
       [6620974293119, 0, 35074418436970, 51307147748, 1695253946038, 12806406135744, 4413048272,

     

       94
       94
       +
        52744440529, 21533960420, 189633269638, 308662314336, 28930988196, 0, 0, 2335754782, 105920229640,

     

       95
       95
       +
        6464319032, 87075196587, 3720984622862, 2177845982468, 5546717284590, 8535586138, 834112091460,

     

       96
       96
       +
        6647844832, 21252082644, 5923960105816, 22344301329, 0, 0, 582455705324, 5162034941182,

     

       97
       97
       +
        368835846080, 30797645913, 0, 5315701730, 1953742172864, 910841596, 5512526952, 673582370688,

     

       98
       98
       +
        2029241325402, 13227054560, 81761616492, 0, 184404641300, 19196318323832, 773246829645,

     

       99
       99
       +
        97032877104, 0, 0, 0, ...]

     

       100
       100
       +
       ```

     

       101
       101
       +
       

     

       102
       102
       +
       ## Part 1

     

       103
       103
       +
       

     

       104
       104
       +
       ```elixir

     

       105
       105
       +
       Enum.count(ways, & &1 > 0)

     

       106
       106
       +
       ```

     

       107
       107
       +
       

     

       108
       108
       +
       <!-- livebook:{"output":true} -->

     

       109
       109
       +
       

     

       110
       110
       +
       ```

     

       111
       111
       +
       306

     

       112
       112
       +
       ```

     

       113
       113
       +
       

     

       114
       114
       +
       ## Part 2

     

       115
       115
       +
       

     

       116
       116
       +
       ```elixir

     

       117
       117
       +
       Enum.sum(ways)

     

       118
       118
       +
       ```

     

       119
       119
       +
       

     

       120
       120
       +
       <!-- livebook:{"output":true} -->

     

       121
       121
       +
       

     

       122
       122
       +
       ```

     

       123
       123
       +
       604622004681855

     

       124
       124
       +
       ```

     

       125
       125
       +
       

     

       126
       126
       +
       <!-- livebook:{"offset":7059,"stamp":{"token":"XCP.002DySFes8xjfbs_CVpc_QP75dkQcDFc5l37WdKhIJnRNctYjy9B2s3kTIev5coTlF4OCw1O-s8QuxIAU1HRaVoeZUHdw248FBapl1Ki5EyAYF1LHsn0MfuWbSukOOamT4I","version":2}} -->

+420

2024/day20.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 20

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyMCIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "20", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "#############################################################################################################################################\n#...#...#...#...#.........#.........###...#.....#...#.....#...#.......#...#...###...#...#...###.......#.........#...#...#...#...............#\n#.#.#.#.#.#.#.#.#.#######.#.#######.###.#.#.###.#.#.#.###.#.#.#.#####.#.#.#.#.###.#.#.#.#.#.###.#####.#.#######.#.#.#.#.#.#.#.#############.#\n#.#.#.#.#.#...#.#.....#...#.#.......#...#.#...#.#.#.#...#...#.#.#.....#.#.#.#.#...#...#.#.#...#...#...#.....#...#.#.#.#...#...#.........#...#\n#.#.#.#.#.#####.#####.#.###.#.#######.###.###.#.#.#.###.#####.#.#.#####.#.#.#.#.#######.#.###.###.#.#######.#.###.#.#.#########.#######.#.###\n#.#.#.#.#...#...#...#.#...#.#.#.....#...#...#.#.#.#...#.#.....#.#.###...#.#.#.#.......#.#.#...#...#.....###.#.....#...#...#...#.......#...###\n#.#.#.#.###.#.###.#.#.###.#.#.#.###.###.###.#.#.#.###.#.#.#####.#.###.###.#.#.#######.#.#.#.###.#######.###.###########.#.#.#.#######.#######\n#.#.#.#.#...#...#.#.#.#...#.#.#.#...###...#.#.#.#.#...#.#...#...#...#...#...#.....###.#.#.#...#.....#...#...#.......#...#...#...#.....#.....#\n#.#.#.#.#.#####.#.#.#.#.###.#.#.#.#######.#.#.#.#.#.###.###.#.#####.###.#########.###.#.#.###.#####.#.###.###.#####.#.#########.#.#####.###.#\n#.#.#.#.#.....#.#.#...#.#...#...#.....#...#...#.#.#...#.#...#.....#...#...#.......#...#...#...#.....#...#...#.....#.#.........#...#.....#...#\n#.#.#.#.#####.#.#.#####.#.###########.#.#######.#.###.#.#.#######.###.###.#.#######.#######.###.#######.###.#####.#.#########.#####.#####.###\n#.#...#.....#.#.#.#.....#...#.....#...#...#.....#...#.#.#...#...#...#.#...#.......#.......#...#.......#.....#.....#...........#...#.....#...#\n#.#########.#.#.#.#.#######.#.###.#.#####.#.#######.#.#.###.#.#.###.#.#.#########.#######.###.#######.#######.#################.#.#####.###.#\n#.#...#...#...#...#...#####.#...#...#####.#.###...#.#.#.#...#.#.....#...#...#.....###...#.#...#...###...#...#.#...#...#.....###.#.###...#...#\n#.#.#.#.#.###########.#####.###.#########.#.###.#.#.#.#.#.###.###########.#.#.#######.#.#.#.###.#.#####.#.#.#.#.#.#.#.#.###.###.#.###.###.###\n#...#...#...#.......#...#...#...#...###...#...#.#.#.#.#.#.###.......#.....#...#...#...#.#.#.###.#.#...#.#.#.#...#...#...#...#...#...#...#...#\n###########.#.#####.###.#.###.###.#.###.#####.#.#.#.#.#.#.#########.#.#########.#.#.###.#.#.###.#.#.#.#.#.#.#############.###.#####.###.###.#\n#...###...#...#...#...#...#...#...#.#...#...#.#.#.#.#...#...###...#.#.....#.....#.#...#...#.#...#.#.#.#.#.#...#...........#...#.....#...#...#\n#.#.###.#.#####.#.###.#####.###.###.#.###.#.#.#.#.#.#######.###.#.#.#####.#.#####.###.#####.#.###.#.#.#.#.###.#.###########.###.#####.###.###\n#.#.#...#.....#.#...#.....#...#.#...#...#.#...#.#...#.......#...#.#.#.....#.....#.###.....#.#...#.#.#.#...#...#...........#...#.....#.#...###\n#.#.#.#######.#.###.#####.###.#.#.#####.#.#####.#####.#######.###.#.#.#########.#.#######.#.###.#.#.#.#####.#############.###.#####.#.#.#####\n#.#...#.....#.#.#...#...#...#...#.#...#.#...#...#.....#.....#...#.#.#.......#...#...#...#.#.....#.#.#.#.....#.............#...#.....#.#.#...#\n#.#####.###.#.#.#.###.#.###.#####.#.#.#.###.#.###.#####.###.###.#.#.#######.#.#####.#.#.#.#######.#.#.#.#####.#############.###.#####.#.#.#.#\n#.#...#.#...#...#.....#.....#.....#.#.#.#...#...#.#...#...#.....#.#.#.....#.#.....#...#.#...#.....#.#.#.....#.#...###...###.#...#...#.#.#.#.#\n#.#.#.#.#.###################.#####.#.#.#.#####.#.#.#.###.#######.#.#.###.#.#####.#####.###.#.#####.#.#####.#.#.#.###.#.###.#.###.#.#.#.#.#.#\n#.#.#...#.................#...#...#.#.#.#.#.....#.#.#.###.......#.#.#...#...#...#...#...#...#.#.....#.#...#.#.#.#.....#.....#.....#...#...#.#\n#.#.#####################.#.###.#.#.#.#.#.#.#####.#.#.#########.#.#.###.#####.#.###.#.###.###.#.#####.#.#.#.#.#.###########################.#\n#.#.....#.................#.###.#.#.#.#.#.#...#...#.#...#...#...#.#.#...#...#.#.#...#...#...#.#...#...#.#.#.#.#.#.....#.......#.....#...#...#\n#.#####.#.#################.###.#.#.#.#.#.###.#.###.###.#.#.#.###.#.#.###.#.#.#.#.#####.###.#.###.#.###.#.#.#.#.#.###.#." <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       #puzzle_input =

     

       27
       27
       +
         """

     

       28
       28
       +
       ###############

     

       29
       29
       +
       #...#...#.....#

     

       30
       30
       +
       #.#.#.#.#.###.#

     

       31
       31
       +
       #S#...#.#.#...#

     

       32
       32
       +
       #######.#.#.###

     

       33
       33
       +
       #######.#.#...#

     

       34
       34
       +
       #######.#.###.#

     

       35
       35
       +
       ###..E#...#...#

     

       36
       36
       +
       ###.#######.###

     

       37
       37
       +
       #...###...#...#

     

       38
       38
       +
       #.#####.#.###.#

     

       39
       39
       +
       #.#...#.#.#...#

     

       40
       40
       +
       #.#.#.#.#.#.###

     

       41
       41
       +
       #...#...#...###

     

       42
       42
       +
       ###############

     

       43
       43
       +
         """

     

       44
       44
       +
       ```

     

       45
       45
       +
       

     

       46
       46
       +
       <!-- livebook:{"output":true} -->

     

       47
       47
       +
       

     

       48
       48
       +
       ```

     

       49
       49
       +
       warning: outdented heredoc line. The contents inside the heredoc should be indented at the same level as the closing """. The following is forbidden:

     

       50
       50
       +
       

     

       51
       51
       +
           def text do

     

       52
       52
       +
             """

     

       53
       53
       +
           contents

     

       54
       54
       +
             """

     

       55
       55
       +
           end

     

       56
       56
       +
       

     

       57
       57
       +
       Instead make sure the contents are indented as much as the heredoc closing:

     

       58
       58
       +
       

     

       59
       59
       +
           def text do

     

       60
       60
       +
             """

     

       61
       61
       +
             contents

     

       62
       62
       +
             """

     

       63
       63
       +
           end

     

       64
       64
       +
       

     

       65
       65
       +
       The current heredoc line is indented too little

     

       66
       66
       +
       └─ Workspace/hauleth/advent-of-code/2024/day20.livemd#cell:iyjl3w4kz3srtwoq:3:3

     

       67
       67
       +
       

     

       68
       68
       +
       ```

     

       69
       69
       +
       

     

       70
       70
       +
       <!-- livebook:{"output":true} -->

     

       71
       71
       +
       

     

       72
       72
       +
       ```

     

       73
       73
       +
       "###############\n#...#...#.....#\n#.#.#.#.#.###.#\n#S#...#.#.#...#\n#######.#.#.###\n#######.#.#...#\n#######.#.###.#\n###..E#...#...#\n###.#######.###\n#...###...#...#\n#.#####.#.###.#\n#.#...#.#.#...#\n#.#.#.#.#.#.###\n#...#...#...###\n###############\n"

     

       74
       74
       +
       ```

     

       75
       75
       +
       

     

       76
       76
       +
       ```elixir

     

       77
       77
       +
       map =

     

       78
       78
       +
         puzzle_input

     

       79
       79
       +
         |> String.split("\n")

     

       80
       80
       +
         |> Enum.with_index()

     

       81
       81
       +
         |> Enum.flat_map(fn {row, y} ->

     

       82
       82
       +
           row

     

       83
       83
       +
           |> String.split("", trim: true)

     

       84
       84
       +
           |> Enum.with_index()

     

       85
       85
       +
           |> Enum.map(fn {c, x} ->

     

       86
       86
       +
             {{x, y}, c}

     

       87
       87
       +
           end)

     

       88
       88
       +
         end)

     

       89
       89
       +
       ```

     

       90
       90
       +
       

     

       91
       91
       +
       <!-- livebook:{"output":true} -->

     

       92
       92
       +
       

     

       93
       93
       +
       ```

     

       94
       94
       +
       [

     

       95
       95
       +
         {{0, 0}, "#"},

     

       96
       96
       +
         {{1, 0}, "#"},

     

       97
       97
       +
         {{2, 0}, "#"},

     

       98
       98
       +
         {{3, 0}, "#"},

     

       99
       99
       +
         {{4, 0}, "#"},

     

       100
       100
       +
         {{5, 0}, "#"},

     

       101
       101
       +
         {{6, 0}, "#"},

     

       102
       102
       +
         {{7, 0}, "#"},

     

       103
       103
       +
         {{8, 0}, "#"},

     

       104
       104
       +
         {{9, 0}, "#"},

     

       105
       105
       +
         {{10, 0}, "#"},

     

       106
       106
       +
         {{11, 0}, "#"},

     

       107
       107
       +
         {{12, 0}, "#"},

     

       108
       108
       +
         {{13, 0}, "#"},

     

       109
       109
       +
         {{14, 0}, "#"},

     

       110
       110
       +
         {{15, 0}, "#"},

     

       111
       111
       +
         {{16, 0}, "#"},

     

       112
       112
       +
         {{17, 0}, "#"},

     

       113
       113
       +
         {{18, 0}, "#"},

     

       114
       114
       +
         {{19, 0}, "#"},

     

       115
       115
       +
         {{20, 0}, "#"},

     

       116
       116
       +
         {{21, 0}, "#"},

     

       117
       117
       +
         {{22, 0}, "#"},

     

       118
       118
       +
         {{23, 0}, "#"},

     

       119
       119
       +
         {{24, 0}, "#"},

     

       120
       120
       +
         {{25, 0}, "#"},

     

       121
       121
       +
         {{26, 0}, "#"},

     

       122
       122
       +
         {{27, 0}, "#"},

     

       123
       123
       +
         {{28, 0}, "#"},

     

       124
       124
       +
         {{29, 0}, "#"},

     

       125
       125
       +
         {{30, 0}, "#"},

     

       126
       126
       +
         {{31, 0}, "#"},

     

       127
       127
       +
         {{32, 0}, "#"},

     

       128
       128
       +
         {{33, 0}, "#"},

     

       129
       129
       +
         {{34, 0}, "#"},

     

       130
       130
       +
         {{35, 0}, "#"},

     

       131
       131
       +
         {{36, 0}, "#"},

     

       132
       132
       +
         {{37, 0}, "#"},

     

       133
       133
       +
         {{38, 0}, "#"},

     

       134
       134
       +
         {{39, 0}, "#"},

     

       135
       135
       +
         {{40, 0}, "#"},

     

       136
       136
       +
         {{41, 0}, "#"},

     

       137
       137
       +
         {{42, 0}, "#"},

     

       138
       138
       +
         {{43, 0}, "#"},

     

       139
       139
       +
         {{44, 0}, "#"},

     

       140
       140
       +
         {{45, 0}, "#"},

     

       141
       141
       +
         {{46, 0}, "#"},

     

       142
       142
       +
         {{47, ...}, "#"},

     

       143
       143
       +
         {{...}, ...},

     

       144
       144
       +
         {...},

     

       145
       145
       +
         ...

     

       146
       146
       +
       ]

     

       147
       147
       +
       ```

     

       148
       148
       +
       

     

       149
       149
       +
       ```elixir

     

       150
       150
       +
       %{"#" => walls, "." => road, "S" => [start], "E" => [finish]} =

     

       151
       151
       +
         Enum.group_by(map, &elem(&1, 1), &elem(&1, 0))

     

       152
       152
       +
       ```

     

       153
       153
       +
       

     

       154
       154
       +
       <!-- livebook:{"output":true} -->

     

       155
       155
       +
       

     

       156
       156
       +
       ```

     

       157
       157
       +
       %{

     

       158
       158
       +
         "#" => [

     

       159
       159
       +
           {0, 0},

     

       160
       160
       +
           {1, 0},

     

       161
       161
       +
           {2, 0},

     

       162
       162
       +
           {3, 0},

     

       163
       163
       +
           {4, 0},

     

       164
       164
       +
           {5, 0},

     

       165
       165
       +
           {6, 0},

     

       166
       166
       +
           {7, 0},

     

       167
       167
       +
           {8, 0},

     

       168
       168
       +
           {9, 0},

     

       169
       169
       +
           {10, 0},

     

       170
       170
       +
           {11, 0},

     

       171
       171
       +
           {12, 0},

     

       172
       172
       +
           {13, 0},

     

       173
       173
       +
           {14, 0},

     

       174
       174
       +
           {15, 0},

     

       175
       175
       +
           {16, 0},

     

       176
       176
       +
           {17, 0},

     

       177
       177
       +
           {18, 0},

     

       178
       178
       +
           {19, 0},

     

       179
       179
       +
           {20, 0},

     

       180
       180
       +
           {21, 0},

     

       181
       181
       +
           {22, 0},

     

       182
       182
       +
           {23, 0},

     

       183
       183
       +
           {24, 0},

     

       184
       184
       +
           {25, 0},

     

       185
       185
       +
           {26, 0},

     

       186
       186
       +
           {27, 0},

     

       187
       187
       +
           {28, 0},

     

       188
       188
       +
           {29, 0},

     

       189
       189
       +
           {30, 0},

     

       190
       190
       +
           {31, 0},

     

       191
       191
       +
           {32, 0},

     

       192
       192
       +
           {33, 0},

     

       193
       193
       +
           {34, 0},

     

       194
       194
       +
           {35, 0},

     

       195
       195
       +
           {36, 0},

     

       196
       196
       +
           {37, 0},

     

       197
       197
       +
           {38, 0},

     

       198
       198
       +
           {39, 0},

     

       199
       199
       +
           {40, 0},

     

       200
       200
       +
           {41, 0},

     

       201
       201
       +
           {42, 0},

     

       202
       202
       +
           {43, 0},

     

       203
       203
       +
           {44, 0},

     

       204
       204
       +
           {45, 0},

     

       205
       205
       +
           {46, 0},

     

       206
       206
       +
           {47, ...},

     

       207
       207
       +
           {...},

     

       208
       208
       +
           ...

     

       209
       209
       +
         ],

     

       210
       210
       +
         "." => [

     

       211
       211
       +
           {1, 1},

     

       212
       212
       +
           {2, 1},

     

       213
       213
       +
           {3, 1},

     

       214
       214
       +
           {5, 1},

     

       215
       215
       +
           {6, 1},

     

       216
       216
       +
           {7, 1},

     

       217
       217
       +
           {9, 1},

     

       218
       218
       +
           {10, 1},

     

       219
       219
       +
           {11, 1},

     

       220
       220
       +
           {13, 1},

     

       221
       221
       +
           {14, 1},

     

       222
       222
       +
           {15, 1},

     

       223
       223
       +
           {17, 1},

     

       224
       224
       +
           {18, 1},

     

       225
       225
       +
           {19, 1},

     

       226
       226
       +
           {20, 1},

     

       227
       227
       +
           {21, 1},

     

       228
       228
       +
           {22, 1},

     

       229
       229
       +
           {23, 1},

     

       230
       230
       +
           {24, 1},

     

       231
       231
       +
           {25, 1},

     

       232
       232
       +
           {27, 1},

     

       233
       233
       +
           {28, 1},

     

       234
       234
       +
           {29, 1},

     

       235
       235
       +
           {30, 1},

     

       236
       236
       +
           {31, 1},

     

       237
       237
       +
           {32, 1},

     

       238
       238
       +
           {33, 1},

     

       239
       239
       +
           {34, 1},

     

       240
       240
       +
           {35, 1},

     

       241
       241
       +
           {39, 1},

     

       242
       242
       +
           {40, 1},

     

       243
       243
       +
           {41, 1},

     

       244
       244
       +
           {43, 1},

     

       245
       245
       +
           {44, 1},

     

       246
       246
       +
           {45, 1},

     

       247
       247
       +
           {46, 1},

     

       248
       248
       +
           {47, 1},

     

       249
       249
       +
           {49, 1},

     

       250
       250
       +
           {50, 1},

     

       251
       251
       +
           {51, 1},

     

       252
       252
       +
           {53, 1},

     

       253
       253
       +
           {54, 1},

     

       254
       254
       +
           {55, 1},

     

       255
       255
       +
           {56, 1},

     

       256
       256
       +
           {57, 1},

     

       257
       257
       +
           {59, ...},

     

       258
       258
       +
           {...},

     

       259
       259
       +
           ...

     

       260
       260
       +
         ],

     

       261
       261
       +
         "E" => [{27, 59}],

     

       262
       262
       +
         "S" => [{49, 53}]

     

       263
       263
       +
       }

     

       264
       264
       +
       ```

     

       265
       265
       +
       

     

       266
       266
       +
       ```elixir

     

       267
       267
       +
       defmodule Race do

     

       268
       268
       +
         def distances(start, finish, walls) do

     

       269
       269
       +
           do_distances(start, finish, 0, MapSet.new(walls), %{})

     

       270
       270
       +
         end

     

       271
       271
       +
       

     

       272
       272
       +
         defp do_distances(finish, finish, n, _, acc),

     

       273
       273
       +
           do: Map.put(acc, finish, n)

     

       274
       274
       +
       

     

       275
       275
       +
         defp do_distances(current, finish, n, walls, acc) do

     

       276
       276
       +
           acc = Map.put(acc, current, n)

     

       277
       277
       +
       

     

       278
       278
       +
           current

     

       279
       279
       +
           |> neigh()

     

       280
       280
       +
           |> Enum.reject(&(&1 in walls or Map.has_key?(acc, &1)))

     

       281
       281
       +
           |> hd()

     

       282
       282
       +
           |> do_distances(finish, n + 1, walls, acc)

     

       283
       283
       +
         end

     

       284
       284
       +
       

     

       285
       285
       +
         def neigh({x, y}, d \\ 1) do

     

       286
       286
       +
           for {dx, dy} <- [{0, d}, {0, -d}, {d, 0}, {-d, 0}], do: {x + dx, y + dy}

     

       287
       287
       +
         end

     

       288
       288
       +
       

     

       289
       289
       +
         def neighbours({x, y}, r \\ 1) do

     

       290
       290
       +
           for dx <- -r..r,

     

       291
       291
       +
               dy <- -r..r,

     

       292
       292
       +
               {dx, dy} != {0, 0},

     

       293
       293
       +
               d = abs(dx) + abs(dy),

     

       294
       294
       +
               d <= r,

     

       295
       295
       +
               do: {x + dx, y + dy}

     

       296
       296
       +
         end

     

       297
       297
       +
       

     

       298
       298
       +
         def d({xa, ya}, {xb, yb}) do

     

       299
       299
       +
           abs(xa - xb) + abs(ya - yb)

     

       300
       300
       +
         end

     

       301
       301
       +
       end

     

       302
       302
       +
       ```

     

       303
       303
       +
       

     

       304
       304
       +
       <!-- livebook:{"output":true} -->

     

       305
       305
       +
       

     

       306
       306
       +
       ```

     

       307
       307
       +
       {:module, Race, <<70, 79, 82, 49, 0, 0, 17, ...>>, {:d, 2}}

     

       308
       308
       +
       ```

     

       309
       309
       +
       

     

       310
       310
       +
       ```elixir

     

       311
       311
       +
       steps = Race.distances(start, finish, walls)

     

       312
       312
       +
       ```

     

       313
       313
       +
       

     

       314
       314
       +
       <!-- livebook:{"output":true} -->

     

       315
       315
       +
       

     

       316
       316
       +
       ```

     

       317
       317
       +
       %{

     

       318
       318
       +
         {18, 103} => 8261,

     

       319
       319
       +
         {61, 121} => 7060,

     

       320
       320
       +
         {65, 63} => 2098,

     

       321
       321
       +
         {77, 129} => 6964,

     

       322
       322
       +
         {1, 26} => 695,

     

       323
       323
       +
         {116, 69} => 4441,

     

       324
       324
       +
         {83, 76} => 4281,

     

       325
       325
       +
         {117, 125} => 5656,

     

       326
       326
       +
         {103, 106} => 5785,

     

       327
       327
       +
         {30, 113} => 8041,

     

       328
       328
       +
         {89, 14} => 2511,

     

       329
       329
       +
         {35, 30} => 1133,

     

       330
       330
       +
         {37, 53} => 32,

     

       331
       331
       +
         {11, 39} => 384,

     

       332
       332
       +
         {131, 5} => 2998,

     

       333
       333
       +
         {65, 43} => 1754,

     

       334
       334
       +
         {139, 46} => 3615,

     

       335
       335
       +
         {12, 135} => 7871,

     

       336
       336
       +
         {65, 131} => 7046,

     

       337
       337
       +
         {49, 117} => 7412,

     

       338
       338
       +
         {29, 25} => 1108,

     

       339
       339
       +
         {83, 36} => 2319,

     

       340
       340
       +
         {47, 27} => 1556,

     

       341
       341
       +
         {4, 81} => 8645,

     

       342
       342
       +
         {13, 124} => 8295,

     

       343
       343
       +
         {121, 77} => 4608,

     

       344
       344
       +
         {103, 39} => 3756,

     

       345
       345
       +
         {119, 60} => 4389,

     

       346
       346
       +
         {13, 85} => 8604,

     

       347
       347
       +
         {63, 81} => 6682,

     

       348
       348
       +
         {111, 108} => 5755,

     

       349
       349
       +
         {111, 103} => 5764,

     

       350
       350
       +
         {15, 92} => 8587,

     

       351
       351
       +
         {1, 101} => 8500,

     

       352
       352
       +
         {20, 3} => 939,

     

       353
       353
       +
         {61, 95} => 6878,

     

       354
       354
       +
         {23, 67} => 9208,

     

       355
       355
       +
         {78, 75} => 6545,

     

       356
       356
       +
         {79, 17} => 2358,

     

       357
       357
       +
         {17, 137} => 7852,

     

       358
       358
       +
         {124, 93} => 4933,

     

       359
       359
       +
         {138, 9} => 3283,

     

       360
       360
       +
         {58, 33} => 1667,

     

       361
       361
       +
         {67, 105} => 6818,

     

       362
       362
       +
         {47, 44} => 1195,

     

       363
       363
       +
         {122, 137} => 5595,

     

       364
       364
       +
         {13, 55} => 154,

     

       365
       365
       +
         {97, 138} => 6129,

     

       366
       366
       +
         {75, ...} => 2165,

     

       367
       367
       +
         {...} => 1616,

     

       368
       368
       +
         ...

     

       369
       369
       +
       }

     

       370
       370
       +
       ```

     

       371
       371
       +
       

     

       372
       372
       +
       ## Part 1

     

       373
       373
       +
       

     

       374
       374
       +
       ```elixir

     

       375
       375
       +
       Enum.reduce(steps, 0, fn {pos, start}, acc ->

     

       376
       376
       +
         count =

     

       377
       377
       +
           steps

     

       378
       378
       +
           |> Map.take(Race.neighbours(pos, 2))

     

       379
       379
       +
           |> Enum.count(fn {last, finish} ->

     

       380
       380
       +
             finish - start - Race.d(pos, last) >= 100

     

       381
       381
       +
           end)

     

       382
       382
       +
       

     

       383
       383
       +
         count + acc

     

       384
       384
       +
       end)

     

       385
       385
       +
       ```

     

       386
       386
       +
       

     

       387
       387
       +
       <!-- livebook:{"output":true} -->

     

       388
       388
       +
       

     

       389
       389
       +
       ```

     

       390
       390
       +
       1393

     

       391
       391
       +
       ```

     

       392
       392
       +
       

     

       393
       393
       +
       ## Part 2

     

       394
       394
       +
       

     

       395
       395
       +
       We can notice that we are looking for shortcuts in circle of radius $r$ defined in Taxicab metric ($d(a, b) = \sum_{i} |a_i - b_i|$). That makes code pretty simple and allows us to reuse ideas from Part 1.

     

       396
       396
       +
       

     

       397
       397
       +
       ```elixir

     

       398
       398
       +
       steps

     

       399
       399
       +
       |> Task.async_stream(

     

       400
       400
       +
         fn {pos, start} ->

     

       401
       401
       +
           steps

     

       402
       402
       +
           |> Map.take(Race.neighbours(pos, 20))

     

       403
       403
       +
           |> Enum.count(fn {last, finish} ->

     

       404
       404
       +
             finish - start - Race.d(pos, last) >= 100

     

       405
       405
       +
           end)

     

       406
       406
       +
         end,

     

       407
       407
       +
         ordered: false

     

       408
       408
       +
       )

     

       409
       409
       +
       |> Enum.reduce(0, fn {:ok, count}, acc ->

     

       410
       410
       +
         count + acc

     

       411
       411
       +
       end)

     

       412
       412
       +
       ```

     

       413
       413
       +
       

     

       414
       414
       +
       <!-- livebook:{"output":true} -->

     

       415
       415
       +
       

     

       416
       416
       +
       ```

     

       417
       417
       +
       990096

     

       418
       418
       +
       ```

     

       419
       419
       +
       

     

       420
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       +
       <!-- livebook:{"offset":11400,"stamp":{"token":"XCP.ONwDp6zRpWXsXASH95Q0puANk15Li1hG2FDCrv6Gqu42Q7k9pb_Te_6RDoUE0dp3yYbG7jry8-6iHGJvcZtsDFstlznyVHk9HVhXRZiC2uQczaOfF4K8HQL9QuzNguTht7A","version":2}} -->

+182

2024/day21.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 21

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyMSIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "21", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok, "638A\n965A\n780A\n803A\n246A"}

     

       22
       22
       +
       ```

     

       23
       23
       +
       

     

       24
       24
       +
       ```elixir

     

       25
       25
       +
       codes =

     

       26
       26
       +
         puzzle_input

     

       27
       27
       +
         |> String.split("\n", trim: true)

     

       28
       28
       +
         |> Enum.map(fn <<num::3-binary>> <> "A" = code ->

     

       29
       29
       +
           {String.to_charlist(code), String.to_integer(num)}

     

       30
       30
       +
         end)

     

       31
       31
       +
       ```

     

       32
       32
       +
       

     

       33
       33
       +
       <!-- livebook:{"output":true} -->

     

       34
       34
       +
       

     

       35
       35
       +
       ```

     

       36
       36
       +
       [{~c"638A", 638}, {~c"965A", 965}, {~c"780A", 780}, {~c"803A", 803}, {~c"246A", 246}]

     

       37
       37
       +
       ```

     

       38
       38
       +
       

     

       39
       39
       +
       ```elixir

     

       40
       40
       +
       dirpad = %{

     

       41
       41
       +
         [?A, ?>] => ~c[vA],

     

       42
       42
       +
         [?A, ?^] => ~c[<A],

     

       43
       43
       +
         [?A, ?v] => ~c[<vA],

     

       44
       44
       +
         [?A, ?<] => ~c[v<<A],

     

       45
       45
       +
       

     

       46
       46
       +
         [?>, ?A] => ~c[^A],

     

       47
       47
       +
         [?>, ?^] => ~c[<^A],

     

       48
       48
       +
         [?>, ?v] => ~c[<A],

     

       49
       49
       +
         [?>, ?<] => ~c[<<A],

     

       50
       50
       +
       

     

       51
       51
       +
         [?^, ?A] => ~c[>A],

     

       52
       52
       +
         [?^, ?>] => ~c[v>A],

     

       53
       53
       +
         [?^, ?v] => ~c[vA],

     

       54
       54
       +
         [?^, ?<] => ~c[v<A],

     

       55
       55
       +
       

     

       56
       56
       +
         [?<, ?A] => ~c[>>^A],

     

       57
       57
       +
         [?<, ?^] => ~c[>^A],

     

       58
       58
       +
         [?<, ?v] => ~c[>A],

     

       59
       59
       +
         [?<, ?>] => ~c[>>A],

     

       60
       60
       +
       

     

       61
       61
       +
         [?v, ?A] => ~c[>^A],

     

       62
       62
       +
         [?v, ?^] => ~c[^A],

     

       63
       63
       +
         [?v, ?<] => ~c[<A],

     

       64
       64
       +
         [?v, ?>] => ~c[>A]

     

       65
       65
       +
       }

     

       66
       66
       +
       ```

     

       67
       67
       +
       

     

       68
       68
       +
       <!-- livebook:{"output":true} -->

     

       69
       69
       +
       

     

       70
       70
       +
       ```

     

       71
       71
       +
       %{

     

       72
       72
       +
         ~c"<>" => ~c">>A",

     

       73
       73
       +
         ~c"<A" => ~c">>^A",

     

       74
       74
       +
         ~c"<^" => ~c">^A",

     

       75
       75
       +
         ~c"<v" => ~c">A",

     

       76
       76
       +
         ~c"><" => ~c"<<A",

     

       77
       77
       +
         ~c">A" => ~c"^A",

     

       78
       78
       +
         ~c">^" => ~c"<^A",

     

       79
       79
       +
         ~c">v" => ~c"<A",

     

       80
       80
       +
         ~c"A<" => ~c"v<<A",

     

       81
       81
       +
         ~c"A>" => ~c"vA",

     

       82
       82
       +
         ~c"A^" => ~c"<A",

     

       83
       83
       +
         ~c"Av" => ~c"<vA",

     

       84
       84
       +
         ~c"^<" => ~c"v<A",

     

       85
       85
       +
         ~c"^>" => ~c"v>A",

     

       86
       86
       +
         ~c"^A" => ~c">A",

     

       87
       87
       +
         ~c"^v" => ~c"vA",

     

       88
       88
       +
         ~c"v<" => ~c"<A",

     

       89
       89
       +
         ~c"v>" => ~c">A",

     

       90
       90
       +
         ~c"vA" => ~c">^A",

     

       91
       91
       +
         ~c"v^" => ~c"^A"

     

       92
       92
       +
       }

     

       93
       93
       +
       ```

     

       94
       94
       +
       

     

       95
       95
       +
       ```elixir

     

       96
       96
       +
       

     

       97
       97
       +
       ```

     

       98
       98
       +
       

     

       99
       99
       +
       <!-- livebook:{"output":true} -->

     

       100
       100
       +
       

     

       101
       101
       +
       ```

     

       102
       102
       +
       nil

     

       103
       103
       +
       ```

     

       104
       104
       +
       

     

       105
       105
       +
       ```elixir

     

       106
       106
       +
       defmodule Keypad do

     

       107
       107
       +
         def naive(input, lut) do

     

       108
       108
       +
           [?A | input]

     

       109
       109
       +
           |> Enum.chunk_every(2, 1, :discard)

     

       110
       110
       +
           |> Enum.flat_map(&Map.get(lut, &1, [?A]))

     

       111
       111
       +
         end

     

       112
       112
       +
       

     

       113
       113
       +
         def expand(input, lut) do

     

       114
       114
       +
           Stream.concat([?A], input)

     

       115
       115
       +
           |> Stream.chunk_every(2, 1, :discard)

     

       116
       116
       +
           |> Stream.flat_map(&Map.get(lut, &1, [?A]))

     

       117
       117
       +
         end

     

       118
       118
       +
       end

     

       119
       119
       +
       ```

     

       120
       120
       +
       

     

       121
       121
       +
       <!-- livebook:{"output":true} -->

     

       122
       122
       +
       

     

       123
       123
       +
       ```

     

       124
       124
       +
       {:module, Keypad, <<70, 79, 82, 49, 0, 0, 9, ...>>, {:expand, 2}}

     

       125
       125
       +
       ```

     

       126
       126
       +
       

     

       127
       127
       +
       ```elixir

     

       128
       128
       +
       

     

       129
       129
       +
       ```

     

       130
       130
       +
       

     

       131
       131
       +
       <!-- livebook:{"output":true} -->

     

       132
       132
       +
       

     

       133
       133
       +
       ```

     

       134
       134
       +
       nil

     

       135
       135
       +
       ```

     

       136
       136
       +
       

     

       137
       137
       +
       ```elixir

     

       138
       138
       +
       Keypad.expand(~c[<A^A>^^AvvvA], dirpad)

     

       139
       139
       +
       |> Enum.count()

     

       140
       140
       +
       

     

       141
       141
       +
       #|> Enum.map(fn {k, v} ->

     

       142
       142
       +
       #  [?A | Map.get(dirpad, k, [?A])]

     

       143
       143
       +
       #  |> Enum.chunk_every(2, 1, :discard)

     

       144
       144
       +
       #  |> Enum.map()

     

       145
       145
       +
       #end)

     

       146
       146
       +
       #|> Enum.group_by(&elem(&1, 0), &elem(&1, 1))

     

       147
       147
       +
       #|> Map.new(fn {k, v} -> {k, Enum.sum(v)} end)

     

       148
       148
       +
       ```

     

       149
       149
       +
       

     

       150
       150
       +
       <!-- livebook:{"output":true} -->

     

       151
       151
       +
       

     

       152
       152
       +
       ```

     

       153
       153
       +
       28

     

       154
       154
       +
       ```

     

       155
       155
       +
       

     

       156
       156
       +
       ```elixir

     

       157
       157
       +
       Keypad.naive(~c[<A^A>^^AvvvA], dirpad)

     

       158
       158
       +
       |> Keypad.naive(dirpad)

     

       159
       159
       +
       |> Enum.chunk_every(2, 1, [?A])

     

       160
       160
       +
       |> Enum.frequencies()

     

       161
       161
       +
       |> Map.values()

     

       162
       162
       +
       |> Enum.sum()

     

       163
       163
       +
       ```

     

       164
       164
       +
       

     

       165
       165
       +
       <!-- livebook:{"output":true} -->

     

       166
       166
       +
       

     

       167
       167
       +
       ```

     

       168
       168
       +
       68

     

       169
       169
       +
       ```

     

       170
       170
       +
       

     

       171
       171
       +
       ```elixir

     

       172
       172
       +
       ~c"<vA<AA>>^AvAA<^A>Av<<A>>^AvA^A<vA>^Av<<A>^A>AAvA^Av<<A>A>^AAAvA<^A>A"

     

       173
       173
       +
       ~c"<vA<AA>>^AvAA<^A>A<v<A>>^AvA^A<vA>^A<v<A>^A>AAvA^A<v<A>A>^AAAvA<^A>A" |> length

     

       174
       174
       +
       ```

     

       175
       175
       +
       

     

       176
       176
       +
       <!-- livebook:{"output":true} -->

     

       177
       177
       +
       

     

       178
       178
       +
       ```

     

       179
       179
       +
       68

     

       180
       180
       +
       ```

     

       181
       181
       +
       

     

       182
       182
       +
       <!-- livebook:{"offset":3144,"stamp":{"token":"XCP.rEBKR0PbENlE02mf_Mo6R3RTWsHU-tFuA9VTPd907vq3-8e37LytxC6qWBmZAHZHLc_e1t3ZaG85X5KBWsYq0WGEzo7HC0U9-oE0dpPKGKeF7oBGgFeiEoDsX6GDKTwp76o","version":2}} -->

+198

2024/day22.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 22

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyMiIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "22", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "4832674\n14802956\n7210529\n7709095\n6063251\n12294789\n15666951\n12074106\n15427686\n1214891\n15165649\n3609602\n10200989\n16451437\n10915511\n3479515\n173864\n1238342\n3381843\n14767788\n16088065\n15637051\n15981887\n15854806\n4988920\n7980791\n11263142\n8044640\n4572291\n328777\n11851557\n13706949\n16451719\n15991644\n14668984\n8852039\n1685443\n13814197\n14117797\n6281998\n12395020\n1681090\n16476099\n2171296\n10155667\n15490827\n6723206\n7272972\n1788575\n2950054\n10917267\n6862495\n8153949\n16559239\n8572595\n1821668\n3417901\n11375457\n3878450\n10863466\n10890116\n13055126\n7451580\n5815531\n8335506\n431487\n201975\n5841753\n11744013\n4498615\n9261071\n9953929\n4630027\n2227105\n6260342\n10375281\n3015284\n3789175\n15843612\n14432075\n14847622\n11501912\n9079366\n2550341\n6931972\n13371306\n9601571\n14504463\n6162939\n5361897\n14900517\n12748562\n7519640\n14694035\n5566950\n7688680\n13810532\n5654369\n10957671\n6886767\n13114128\n9355299\n14808826\n11001280\n4983663\n9915373\n3356476\n16519750\n15826279\n11122172\n12902904\n1010762\n16214923\n9519057\n15931832\n15664252\n12750269\n1110882\n7854151\n3509827\n10328167\n1494530\n8712493\n396534\n15995697\n7396815\n3419574\n14789278\n14099072\n15389372\n6910648\n649063\n3609071\n6004556\n5054128\n13730203\n3554012\n2766085\n7133343\n7566747\n1194302\n10446649\n1529903\n9036124\n11725198\n6479244\n10287711\n2219155\n2360315\n8169407\n7841353\n7486466\n15297309\n9336789\n7225072\n6248515\n16154198\n11100038\n8584563\n3753173\n7371112\n2481160\n10954049\n8009781\n7381801\n280810\n11001420\n14114713\n4242475\n1237360\n6496866\n15267044\n1880781\n8798544\n5033766\n5079684\n11633848\n16509688\n8226900\n15858455\n16041151\n5334220\n15421957\n2633967\n8343560\n14729378\n9702409\n5482505\n2041087\n9712582\n3430735\n10644043\n9195957\n1784419\n14046333\n2031279\n12766582\n12165573\n14207224\n14929506\n11436548\n13623882\n12370036\n7592923\n228169\n8988171\n6688080\n5492092\n8212636\n3736928\n15352784\n2612376\n14843761\n12308540\n8404032\n11632730\n4404470\n2599992\n6807809\n12044159\n9795957\n5307557\n13144362\n13941181\n9362743\n4957570\n9950852\n4069207\n699043\n13667685\n12869414\n5834836\n8434557\n13512362\n5446646\n16663243\n10059682\n231185\n14405863\n10532295\n13752653\n3266523\n12926376\n9013886\n15683001\n10524950\n325867\n15226063\n15175724\n15991383\n13961546\n15823957\n9310375\n5534565\n2674761\n13444598\n9915920\n1755544\n1429896\n14788650\n5453166\n10081466\n2149840\n16613385\n2519989\n7555351\n7295534\n12099546\n3223009\n2684428\n8436395\n5406395\n836225\n9962036\n2847179\n12880336\n13215841\n3498334\n5985622\n7700379\n5785351\n9938722\n15810882\n2349820\n906893\n2513825\n10432278\n13789913\n2913486\n9683268\n2862417\n4807276\n16264545\n6607564\n10222512\n2190055\n11839341\n2132714\n153996\n10874457\n12023939\n7748310\n13452955\n3246986\n2892967\n9561561\n3280827\n991231\n13105708\n16641479\n273523\n4832864\n13832855\n7903624\n13242917\n13379831\n9085055\n1473661\n11031255\n4126827\n12754058\n456062\n14316218\n6580848\n11147440\n1828704\n15262845\n557484\n2406569\n10393027\n3363996\n15821838\n16365523\n5566374\n3723957\n5186897\n501767\n10639559\n3256585\n2354615\n1888438\n11574106\n11798800\n12629659\n6316600\n3119025\n14801938\n7025953\n14949782\n7577552\n14785389\n8868837\n11642113\n14574465\n8689963\n16223594\n14705685\n16363438\n1393194\n5961465\n16603208\n8121071\n15143692\n7531645\n6777163\n8168251\n15905711\n2373414\n1269213\n2506356\n1080789\n2154403\n11578189\n6232867\n10065427\n15116084\n15449140\n12675436\n14126594\n8470014\n2106625\n12556109\n12771090\n1437370\n16145074\n6244539\n6832665\n13217078\n5152936\n15205635\n12092447\n15115231\n2112929\n13215959\n11124896\n14598714\n15256810\n9994507\n11687859\n11599901\n5330801\n13829820\n1720133\n11040068\n4351948\n9597919\n10673331\n6148104\n12360792\n9687192\n11668420\n10272257\n7823976\n6113203\n8827921\n5600165\n6950138\n9581746\n15917691\n6453798\n11788226\n15057269\n9639028\n5073513\n15459362\n14118507\n7979569\n4210224\n5726357\n10649449\n14645020\n3062620\n14613306\n13963982\n14770179\n15097265\n1789308\n12405157\n7360698\n6983540\n9752726\n8200080\n5784060\n13456865\n4677699\n3783161\n13650051\n9865655\n13066800\n1868022\n5855823\n15061710\n11742417\n2116233\n15002417\n904747\n9455335\n5203086\n704685\n902384\n15284593\n8328120\n13587250\n11550241\n10950646\n14876694\n11393724\n14576237\n898540\n8874901\n5548732\n11351523\n2315166\n9532824\n11462685\n1297628\n3862586\n16331382\n9291789\n2887008\n2582973\n4861709\n15301133\n8978897\n533818\n1565155\n3829639\n8438476\n11901529" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       inits =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.map(&String.to_integer/1)

     

       30
       30
       +
       ```

     

       31
       31
       +
       

     

       32
       32
       +
       <!-- livebook:{"output":true} -->

     

       33
       33
       +
       

     

       34
       34
       +
       ```

     

       35
       35
       +
       [4832674, 14802956, 7210529, 7709095, 6063251, 12294789, 15666951, 12074106, 15427686, 1214891,

     

       36
       36
       +
        15165649, 3609602, 10200989, 16451437, 10915511, 3479515, 173864, 1238342, 3381843, 14767788,

     

       37
       37
       +
        16088065, 15637051, 15981887, 15854806, 4988920, 7980791, 11263142, 8044640, 4572291, 328777,

     

       38
       38
       +
        11851557, 13706949, 16451719, 15991644, 14668984, 8852039, 1685443, 13814197, 14117797, 6281998,

     

       39
       39
       +
        12395020, 1681090, 16476099, 2171296, 10155667, 15490827, 6723206, 7272972, 1788575, 2950054, ...]

     

       40
       40
       +
       ```

     

       41
       41
       +
       

     

       42
       42
       +
       ```elixir

     

       43
       43
       +
       defmodule Buyer do

     

       44
       44
       +
         def hash(number, rounds \\ 2000) do

     

       45
       45
       +
           Enum.map_reduce(1..rounds//1, number, fn _, acc ->

     

       46
       46
       +
             r = do_round(acc)

     

       47
       47
       +
             {rem(r, 10), r}

     

       48
       48
       +
           end)

     

       49
       49
       +
         end

     

       50
       50
       +
       

     

       51
       51
       +
         defp do_round(num) do

     

       52
       52
       +
           num = subround(num, num * 64)

     

       53
       53
       +
           num = subround(num, div(num, 32))

     

       54
       54
       +
           subround(num, num * 2048)

     

       55
       55
       +
         end

     

       56
       56
       +
       

     

       57
       57
       +
         defp subround(a, b), do: rem(Bitwise.bxor(a, b), 16_777_216)

     

       58
       58
       +
       

     

       59
       59
       +
         def sequences(prices) do

     

       60
       60
       +
           prices

     

       61
       61
       +
           |> Enum.chunk_every(5, 1, :discard)

     

       62
       62
       +
           |> Enum.reduce(%{}, fn seq, map ->

     

       63
       63
       +
             Map.put_new(map, diffs(seq), List.last(seq))

     

       64
       64
       +
           end)

     

       65
       65
       +
         end

     

       66
       66
       +
       

     

       67
       67
       +
         defp diffs(vals) do

     

       68
       68
       +
           vals

     

       69
       69
       +
           |> Enum.chunk_every(2, 1, :discard)

     

       70
       70
       +
           |> Enum.map(fn [a, b] -> b - a end)

     

       71
       71
       +
           |> Integer.undigits(256)

     

       72
       72
       +
         end

     

       73
       73
       +
       end

     

       74
       74
       +
       ```

     

       75
       75
       +
       

     

       76
       76
       +
       <!-- livebook:{"output":true} -->

     

       77
       77
       +
       

     

       78
       78
       +
       ```

     

       79
       79
       +
       {:module, Buyer, <<70, 79, 82, 49, 0, 0, 13, ...>>, {:diffs, 1}}

     

       80
       80
       +
       ```

     

       81
       81
       +
       

     

       82
       82
       +
       ```elixir

     

       83
       83
       +
       hashes = Enum.map(inits, &Buyer.hash(&1))

     

       84
       84
       +
       ```

     

       85
       85
       +
       

     

       86
       86
       +
       <!-- livebook:{"output":true} -->

     

       87
       87
       +
       

     

       88
       88
       +
       ```

     

       89
       89
       +
       [

     

       90
       90
       +
         {[5, 9, 7, 9, 4, 6, 2, 9, 4, 3, 6, 5, 0, 6, 5, 7, 2, 7, 9, 7, 0, 2, 5, 8, 8, 2, 0, 8, 4, 8, 3, 1,

     

       91
       91
       +
           4, 3, 3, 8, 0, 5, 2, 1, 2, 8, 6, 2, 2, 3, 6, 9, ...], 8186085},

     

       92
       92
       +
         {[8, 6, 8, 8, 3, 4, 6, 9, 0, 1, 1, 5, 4, 9, 5, 4, 1, 2, 5, 2, 6, 7, 8, 7, 5, 4, 4, 2, 5, 6, 4, 6,

     

       93
       93
       +
           2, 4, 5, 9, 5, 8, 5, 0, 6, 9, 3, 2, 3, 4, 4, ...], 16060909},

     

       94
       94
       +
         {[6, 0, 5, 8, 8, 7, 3, 6, 0, 9, 1, 0, 7, 2, 7, 5, 6, 4, 0, 5, 4, 0, 1, 9, 6, 5, 7, 1, 7, 9, 9, 9,

     

       95
       95
       +
           5, 6, 0, 7, 3, 0, 9, 4, 8, 4, 0, 2, 2, 7, ...], 3581487},

     

       96
       96
       +
         {[6, 3, 1, 0, 2, 6, 8, 9, 1, 6, 7, 4, 5, 0, 9, 9, 8, 9, 1, 0, 6, 4, 9, 0, 1, 0, 9, 3, 0, 0, 9, 1,

     

       97
       97
       +
           9, 6, 6, 7, 2, 1, 7, 2, 7, 3, 2, 7, 3, ...], 14331752},

     

       98
       98
       +
         {[3, 5, 1, 7, 1, 4, 6, 0, 4, 9, 8, 3, 7, 3, 3, 2, 2, 9, 1, 3, 3, 4, 9, 2, 3, 2, 5, 6, 9, 4, 3, 8,

     

       99
       99
       +
           1, 6, 7, 3, 8, 8, 7, 5, 3, 3, 2, 3, ...], 11096256},

     

       100
       100
       +
         {[9, 5, 4, 8, 1, 3, 9, 8, 2, 6, 7, 9, 0, 8, 6, 3, 4, 8, 7, 0, 0, 2, 2, 7, 2, 2, 0, 9, 7, 4, 9, 5,

     

       101
       101
       +
           7, 1, 3, 1, 7, 9, 3, 3, 6, 2, 4, ...], 8119288},

     

       102
       102
       +
         {[3, 0, 8, 6, 0, 0, 3, 4, 2, 0, 0, 8, 7, 6, 3, 7, 5, 2, 4, 8, 4, 4, 5, 4, 8, 9, 2, 1, 6, 8, 3, 9,

     

       103
       103
       +
           2, 8, 0, 5, 0, 9, 7, 2, 5, 9, ...], 4175670},

     

       104
       104
       +
         {[9, 6, 3, 2, 9, 6, 8, 1, 7, 8, 0, 7, 2, 2, 0, 8, 6, 5, 5, 3, 9, 6, 5, 7, 1, 4, 6, 7, 9, 7, 2, 4,

     

       105
       105
       +
           6, 2, 0, 2, 9, 7, 8, 0, 9, ...], 9128738},

     

       106
       106
       +
         {[5, 8, 5, 2, 2, 9, 4, 4, 8, 8, 9, 9, 8, 3, 4, 9, 2, 2, 9, 1, 2, 2, 0, 8, 1, 2, 3, 4, 0, 4, 6, 4,

     

       107
       107
       +
           3, 6, 8, 1, 9, 6, 1, 5, ...], 13899897},

     

       108
       108
       +
         {[0, 9, 4, 3, 5, 9, 1, 2, 1, 1, 8, 1, 8, 8, 3, 8, 4, 4, 3, 7, 7, 2, 9, 8, 5, 8, 8, 4, 4, 8, 4, 0,

     

       109
       109
       +
           5, 9, 7, 0, 3, 3, 6, ...], 12087848},

     

       110
       110
       +
         {[5, 6, 7, 3, 2, 0, 5, 4, 8, 8, 2, 6, 8, 4, 9, 7, 2, 0, 9, 3, 4, 1, 3, 0, 6, 5, 2, 6, 4, 6, 9, 4,

     

       111
       111
       +
           3, 9, 9, 9, 7, 2, ...], 11514818},

     

       112
       112
       +
         {[0, 9, 7, 9, 2, 6, 4, 9, 7, 0, 3, 1, 6, 4, 3, 2, 0, 2, 8, 4, 7, 6, 7, 7, 1, 1, 5, 2, 6, 6, 1, 4,

     

       113
       113
       +
           9, 5, 6, 9, 3, ...], 4150418},

     

       114
       114
       +
         {[5, 5, 0, 8, 5, 6, 2, 7, 0, 5, 4, 2, 1, 0, 5, 6, 6, 3, 6, 2, 4, 3, 9, 4, 3, 0, 8, 0, 6, 7, 1, 8,

     

       115
       115
       +
           0, 2, 7, 1, ...], 2679493},

     

       116
       116
       +
         {[4, 0, 8, 1, 5, 9, 0, 3, 6, 0, 2, 8, 5, 7, 1, 1, 9, 1, 5, 1, 5, 0, 7, 3, 5, 5, 4, 3, 9, 4, 3, 9,

     

       117
       117
       +
           6, 9, 6, ...], 84072},

     

       118
       118
       +
         {[0, 5, 2, 6, 6, 4, 1, 2, 5, 2, 3, 8, 4, 1, 2, 4, 7, 5, 2, 7, 7, 0, 8, 0, 6, 0, 6, 3, 4, 3, 7, 0,

     

       119
       119
       +
           5, 8, ...], 3938870},

     

       120
       120
       +
         {[5, 5, 5, 5, 6, 0, 6, 9, 2, 0, 0, 5, 3, 0, 3, 3, 0, 7, 7, 0, 1, 5, 8, 8, 6, 5, 3, 3, 2, 5, 8, 8,

     

       121
       121
       +
           8, ...], 15186439},

     

       122
       122
       +
         {[5, 1, 6, 4, 5, 2, 2, 2, 0, 9, 6, 3, 2, 1, 5, 6, 2, 6, 0, 4, 2, 8, 9, 2, 8, 7, 8, 7, 9, 2, 5, 1,

     

       123
       123
       +
           ...], 4224277},

     

       124
       124
       +
         {[8, 7, 6, 6, 8, 0, 1, 8, 9, 1, 7, 5, 0, 6, 4, 4, 9, 2, 1, 6, 1, 5, 4, 1, 9, 9, 9, 4, 7, 3, 0,

     

       125
       125
       +
           ...], 6637814},

     

       126
       126
       +
         {[7, 4, 4, 8, 3, 9, 5, 6, 1, 1, 7, 4, 7, 2, 5, 3, 8, 5, 3, 4, 7, 7, 0, 0, 4, 1, 7, 1, 4, 5, ...],

     

       127
       127
       +
          15335578},

     

       128
       128
       +
         {[1, 3, 9, 5, 1, 4, 9, 6, 9, 0, 6, 7, 7, 5, 4, 8, 8, 4, 4, 0, 3, 0, 0, 2, 8, 8, 8, 7, 5, ...],

     

       129
       129
       +
          14808063},

     

       130
       130
       +
         {[3, 8, 6, 7, 8, 8, 1, 5, 4, 2, 3, 3, 6, 0, 4, 4, 6, 3, 6, 3, 5, 3, 3, 7, 4, 7, 1, 8, ...],

     

       131
       131
       +
          2236221},

     

       132
       132
       +
         {[4, 2, 4, 3, 0, 3, 6, 2, 7, 9, 6, 6, 9, 3, 2, 0, 1, 8, 1, 5, 7, 7, 3, 8, 8, 1, 9, ...], 9777274},

     

       133
       133
       +
         {[8, 5, 1, 6, 9, 9, 1, 6, 3, 9, 9, 4, 5, 9, 4, 2, 8, 5, 7, 9, 2, 1, 6, 9, 0, 9, ...], 14777742},

     

       134
       134
       +
         {[4, 6, 0, 4, 6, 3, 2, 3, 8, 0, 2, 3, 2, 2, 0, 7, 7, 4, 5, 8, 8, 2, 8, 9, 4, ...], 3528684},

     

       135
       135
       +
         {[3, 6, 3, 3, 3, 2, 5, 2, 8, 8, 8, 0, 3, 1, 2, 2, 6, 2, 3, 1, 2, 6, 1, 9, ...], 15225220},

     

       136
       136
       +
         {[2, 1, 2, 4, 0, 6, 0, 8, 6, 5, 9, 5, 1, 7, 1, 3, 9, 3, 2, 8, 5, 4, 8, ...], 4484251},

     

       137
       137
       +
         {[1, 5, 9, 2, 0, 5, 7, 4, 6, 2, 3, 4, 7, 9, 9, 7, 9, 8, 3, 4, 2, 3, ...], 12505941},

     

       138
       138
       +
         {[3, 2, 8, 0, 7, 6, 7, 8, 6, 2, 0, 4, 7, 6, 2, 8, 2, 7, 3, 0, 3, ...], 12324709},

     

       139
       139
       +
         {[3, 6, 3, 2, 2, 5, 4, 5, 3, 2, 2, 8, 5, 8, 7, 6, 5, 9, 3, 0, ...], 12840916},

     

       140
       140
       +
         {[7, 4, 1, 3, 5, 7, 1, 9, 4, 8, 2, 0, 2, 6, 7, 1, 7, 8, 4, ...], 13939301},

     

       141
       141
       +
         {[0, 4, 4, 4, 6, 9, 8, 0, 2, 3, 9, 9, 4, 0, 6, 0, 4, 2, ...], 7392065},

     

       142
       142
       +
         {[7, 8, 0, 0, 4, 1, 6, 1, 5, 9, 0, 3, 1, 4, 5, 8, 9, ...], 13395486},

     

       143
       143
       +
         {[5, 5, 1, 7, 9, 8, 0, 1, 5, 5, 6, 2, 1, 6, 6, 5, ...], 14846825},

     

       144
       144
       +
         {[4, 1, 5, 9, 7, 1, 3, 6, 6, 5, 8, 9, 1, 0, 7, ...], 15647415},

     

       145
       145
       +
         {[5, 0, 0, 5, 4, 4, 9, 3, 4, 0, 4, 9, 0, 0, ...], 15491670},

     

       146
       146
       +
         {[5, 3, 1, 3, 6, 7, 3, 2, 8, 6, 2, 5, 0, ...], 12602693},

     

       147
       147
       +
         {[9, 6, 3, 2, 6, 3, 9, 6, 6, 5, 2, 6, ...], 16470307},

     

       148
       148
       +
         {[8, 4, 3, 6, 0, 4, 0, 8, 5, 5, 9, ...], 10819101},

     

       149
       149
       +
         {[0, 9, 4, 4, 6, 0, 2, 4, 0, 3, ...], 8658998},

     

       150
       150
       +
         {[0, 2, 8, 3, 0, 4, 5, 0, 5, ...], 11616760},

     

       151
       151
       +
         {[4, 8, 3, 5, 2, 8, 0, 8, ...], 4294043},

     

       152
       152
       +
         {[8, 1, 0, 8, 2, 1, 0, ...], 11210309},

     

       153
       153
       +
         {[5, 8, 6, 9, 6, 8, ...], 1113711},

     

       154
       154
       +
         {[1, 6, 5, 5, 4, ...], 16530315},

     

       155
       155
       +
         {[5, 1, 3, 9, ...], 8014000},

     

       156
       156
       +
         {[7, 4, 5, ...], 13932057},

     

       157
       157
       +
         {[8, 9, ...], 9987703},

     

       158
       158
       +
         {[4, ...], 10745797},

     

       159
       159
       +
         {[...], ...},

     

       160
       160
       +
         {...},

     

       161
       161
       +
         ...

     

       162
       162
       +
       ]

     

       163
       163
       +
       ```

     

       164
       164
       +
       

     

       165
       165
       +
       ## Part 1

     

       166
       166
       +
       

     

       167
       167
       +
       ```elixir

     

       168
       168
       +
       hashes

     

       169
       169
       +
       |> Enum.map(&elem(&1, 1))

     

       170
       170
       +
       |> Enum.sum()

     

       171
       171
       +
       ```

     

       172
       172
       +
       

     

       173
       173
       +
       <!-- livebook:{"output":true} -->

     

       174
       174
       +
       

     

       175
       175
       +
       ```

     

       176
       176
       +
       13461553007

     

       177
       177
       +
       ```

     

       178
       178
       +
       

     

       179
       179
       +
       ## Part 2

     

       180
       180
       +
       

     

       181
       181
       +
       ```elixir

     

       182
       182
       +
       hashes

     

       183
       183
       +
       |> Task.async_stream(

     

       184
       184
       +
         fn {prices, _} -> Buyer.sequences(prices) end,

     

       185
       185
       +
         ordered: false

     

       186
       186
       +
       )

     

       187
       187
       +
       |> Enum.reduce(%{}, fn {:ok, a}, b -> Map.merge(a, b, fn _k, v, k -> v + k end) end)

     

       188
       188
       +
       |> Enum.max_by(&elem(&1, 1))

     

       189
       189
       +
       |> elem(1)

     

       190
       190
       +
       ```

     

       191
       191
       +
       

     

       192
       192
       +
       <!-- livebook:{"output":true} -->

     

       193
       193
       +
       

     

       194
       194
       +
       ```

     

       195
       195
       +
       1499

     

       196
       196
       +
       ```

     

       197
       197
       +
       

     

       198
       198
       +
       <!-- livebook:{"offset":11738,"stamp":{"token":"XCP.GjkWCjlMBRZbt2b3Ic6te1lRoiRN-o788mezmoiandQKEk9mR1MC2aSWY6otgof8lHDa_afMMYYnBV9YHmLjoK0wooHF17OPyx6ruqV5hYpKoVBVZuhSx_gT8_2Ac2S73Pk","version":2}} -->

+203

2024/day23.livemd

···

       1
       1
       +
       <!-- livebook:{"persist_outputs":true} -->

     

       2
       2
       +
       

     

       3
       3
       +
       # Day 23

     

       4
       4
       +
       

     

       5
       5
       +
       ```elixir

     

       6
       6
       +
       Mix.install([:kino_aoc, {:libgraph, github: "bitwalker/libgraph"}, :combination])

     

       7
       7
       +
       ```

     

       8
       8
       +
       

     

       9
       9
       +
       ## Section

     

       10
       10
       +
       

     

       11
       11
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyMyIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       12
       12
       +
       

     

       13
       13
       +
       ```elixir

     

       14
       14
       +
       {:ok, puzzle_input} =

     

       15
       15
       +
         KinoAOC.download_puzzle("2024", "23", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       16
       16
       +
       ```

     

       17
       17
       +
       

     

       18
       18
       +
       <!-- livebook:{"output":true} -->

     

       19
       19
       +
       

     

       20
       20
       +
       ```

     

       21
       21
       +
       {:ok,

     

       22
       22
       +
        "on-za\nbp-hs\nvc-bg\ntm-us\nzf-ox\nib-lc\nuo-zs\nov-qj\nll-eb\niy-tq\nbg-by\nun-ix\ngi-do\nrv-ou\nyp-qu\nqb-um\nqs-dn\nru-ro\net-fw\nyx-jt\nns-iz\nod-rc\nny-ap\nvb-fd\nwf-wr\nyh-qy\nfa-ct\nqo-fv\nig-jv\nqi-ff\nnj-ii\nsa-gg\ncp-un\nez-kh\nvs-du\ngp-qs\npt-qj\nyp-my\njf-sz\nyo-gm\nfn-xw\niu-xr\nse-ox\nmw-ie\nfw-br\nxy-iu\nqw-wi\nxc-dq\nvb-cq\ntw-zj\nka-aq\ngo-ds\nvi-cn\npz-kz\npy-nd\npt-ws\nog-lw\nlb-hj\nef-ac\ncv-qa\nsq-jv\nfw-xk\nlu-fc\nbj-bp\nzh-fi\ntg-nm\nsp-at\nke-dh\nut-ly\ngr-vr\nko-qg\nxg-df\nrc-up\nbd-it\ngz-en\nqj-ev\nwf-dx\nxn-hi\npq-th\nkr-gw\ngu-sm\ncv-xr\nzq-fp\nep-kq\nfv-dx\nlc-rw\ney-ef\nek-rw\ntw-eg\nfc-zw\nxm-ho\ngj-oy\nhy-og\nec-tw\npy-hw\nqr-jh\nvh-ea\nvz-ja\nov-ev\nyh-vh\nyk-fc\nfm-yi\nyf-kx\ner-bi\nbi-qq\ngc-fk\nie-gf\njk-fn\nxl-il\nbs-dl\nsh-op\npy-vx\ncn-jl\ntl-ee\nxw-wn\nzv-br\nkr-yn\ndj-wd\nwj-bz\nhf-bg\nzh-ql\nbs-ls\ntq-jk\nmz-dz\nav-jr\ngj-dr\npo-iy\nof-aq\nun-fw\nnv-bx\njz-nl\nze-ae\nvd-df\nix-et\nrn-ik\ndz-ou\nmz-ej\nec-kx\nxr-cf\njt-vr\nix-fw\nes-er\nbv-no\nwj-df\nyv-cl\njd-xl\nlu-vo\nxo-td\nvq-ow\nlc-vm\nca-lf\noq-on\nwj-xg\nfn-rp\nka-np\nbx-ez\ndz-sz\nkt-xl\ndd-jd\nla-qn\nqe-pt\ngl-ly\nqj-cc\nat-rf\nke-om\ndc-hu\nqb-rr\nov-ku\ntq-xw\nfz-tn\nma-hi\nbr-yw\nno-sp\ndj-kn\nyn-gw\ngo-ir\nbz-xg\nwo-se\nrz-wa\nqy-sx\nqn-ym\npo-tq\nxr-jh\ndf-tn\noe-vi\nsw-el\nvm-vr\ntg-nf\ncg-zt\nwf-fl\ncd-nc\nsw-qa\nfo-jg\nhj-av\nwd-rn\nwc-wq\noq-vw\nkx-ux\nop-nq\nsm-ru\nch-fw\nqx-uy\nti-fw\nrp-qm\npo-tj\nse-nw\npj-rs\nbo-sn\nsy-ur\niy-jb\ntm-rz\ndg-jt\nfa-sq\nok-th\nzq-ps\nhr-kr\npz-zs\nwq-ze\nms-an\nnp-aq\ntl-ka\npw-dh\nbm-sz\nuu-gm\nft-vb\nau-ab\nlx-lw\ncp-ri\nep-xm\nry-hk\nyi-gf\ncj-qr\nfl-lu\nbv-za\nyw-xk\nne-ss\nln-wv\nwf-vo\nlx-jy\noy-xy\nkq-fa\neh-lv\nuq-mi\nis-mx\nwn-eo\nqr-xy\nlr-ms\nkt-jd\nyk-lu\nqe-cc\naj-si\nqq-bp\nlw-xa\nus-pp\nen-mq\nct-te\nod-db\ncp-br\nrg-ou\nev-ku\nqg-ec\nuv-np\njn-sw\nxj-ie\nqr-xr\ntr-zp\nha-gg\nrx-pz\nsa-fl\ngx-vz\nmg-oi\nyc-zn\nxw-jo\nae-ou\nhj-gn\nix-ri\nsq-ct\nwo-xr\nbl-wl\ntt-ac\nbs-ij\nmh-re\nhg-lv\nwu-fh\nrt-rq\nsn-vq\nzy-vh\nyh-zy\ntu-oz\nbk-ai\nds-gq\nss-ob\ndv-di\nvw-on\nxr-zb\nfr-jl\nro-om\nrk-mg\nyc-hi\nvv-nf\nkz-nt\nrt-qw\nzj-ux\nox-wv\nfz-dc\nya-xo\ngq-du\nmx-fk\nsi-mo\nmo-ef\ndb-ex\nhw-rc\njy-qd\noz-lb\nvi-cm\nvx-ec\nxr-aa\nnx-ni\nny-fv\nta-vc\nnq-yi\nzt-gp\nnd-iu\nvv-yd\nsh-gf\nyf-hm\ndq-ee\nbg-bt\nnc-kz\ngq-py\nek-sy\nty-le\njo-eo\ndy-ko\nxa-qd\nrm-ns\ngk-xp\ngz-jr\ncr-ez\nwr-fc\nhe-cg\nin-og\ndw-sh\nuk-bf\nbr-un\nok-gi\nch-gr\ncx-gz\ndv-ho\nbx-cr\nex-go\nik-nv\nkh-wb\nol-vk\nhg-bf\nod-du\nvj-qk\nyd-uj\nfu-lq\nbi-bj\nvl-il\ncd-ob\nax-us\nmw-nq\nvr-rw\nhx-uf\nwz-vb\nem-xe\nee-of\nhm-ec\nek-ds\nys-sy\nqq-jq\ngu-jg\nzc-oi\nji-yb\nou-kw\nep-lh\nid-nx\ngp-wp\nph-ns\ncn-io\nwn-tq\nrw-vm\nnx-fv\nce-gn\nvr-lt\nxl-dd\nzw-sa\nwr-ty\nkz-jx\njd-rx\nna-hk\nnc-ob\nnw-re\nwt-jq\naj-sw\nkc-bi\nwq-qx\njt-ib\ncb-ly\nuj-zp\ncy-ps\nsm-om\nbu-bd\nux-ko\nxa-hy\nbc-uq\nsi-sw\nyc-ma\nyk-sa\ngf-mw\nbp-eq\nfh-zh\nmn-bo\nbw-hj\nes-bj\nop-xj\nup-hh\nds-db\ngx-qu\nyo-fp\nwg-ls\net-zc\ndn-vw\nyb-bt\nsk-sb\nxe-ea\nni-ap\nhw-go\ndn-zc\nno-vw\npt-cc\nrv-wc\nwc-xq\njg-ke\noo-jg\ndo-ss\nie-nq\npq-is\nrf-oq\nzn-vb\neb-ef\ngp-rs\npt-pf\nmd-lb\nle-zw\nxn-tf\nui-cb\nbz-fz\npj-gp\nzr-ee\npp-ax\nkl-jq\nxc-of\nox-lr\nuy-rv\nvd-sb\nyy-bh\nvn-dq\ndt-hg\nnp-vn\nla-fh\ngw-eh\ncq-wz\nno-ia\nqj-ws\npl-pt\ndf-ge\nzq-vj\njg-om\nnq-sh\nzy-kr\npv-im\naq-vn\nsq-yx\nsb-df\nih-gx\ngn-av\ndc-ff\nwg-ph\nsm-fo\nux-dk\ngi-kv\nhr-dt\nrc-go\nax-tm\npp-bo\nnn-xe\njf-mz\nvl-jd\nfs-cl\ngz-gn\nui-ly\nrx-hy\nrn-dj\nqe-pf\njx-gy\ntr-qb\neu-lr\nyt-ih\ntr-oi\nnc-ss\nnh-pb\nir-nd\nel-qf\ntl-aq\nkj-es\nru-fo\nfw-bu\nps-qk\nlq-lx\ncm-fg\nel-si\nvs-hw\neg-ux\nmt-lh\ntt-yy\njz-sq\nfm-nq\nvx-ko\nbl-lx\nrc-ex\nby-ji\neq-kl\ntk-vd\nmo-qf\nzr-xd\nbt-vc\nux-mi\nha-us\nvr-ib\nhx-rq\nat-no\nui-tx\nvs-od\nfp-ay\nzj-kx\nvs-ds\nqo-vk\nhw-db\npf-ku\nmd-jr\nfp-fe\nyg-tx\nmz-gs\nnl-ct\ncn-oe\nxj-ri\nya-ku\nnw-mh\nvh-ff\nft-hz\nen-md\nps-fp\naf-rx\nvx-kx\nkv-fd\nkr-lf\nae-rg\nsp-vw\nvn-zr\nea-pi\nat-vw\nrw-ax\nkg-vh\nxy-cv\nca-gw\nem-nn\nhj-en\ngw-ra\nfr-cy\ned-wu\nyf-tw\nuo-lz\ngc-pq\ntw-ux\nqy-kg\ncx-fo\nit-ly\nuj-mg\nrp-po\nsq-yv\nzh-zs\nth-ne\nes-fe\nrn-nv\naa-gj\nzb-aa\nwt-kl\nwu-uo\nbb-ce\nby-bt\nqb-gv\nbp-es\nbd-tx\nma-cq\nyt-qu\nuu-mn\nke-fa\nmx-jn\ndq-ew\nax-ow\nhv-dx\nyh-sx\ngx-ry\njz-jv\nsb-wj\ndo-ok\ngj-qn\nbr-ri\nlu-zw\nsb-ge\nkg-ao\nuu-fp\nus-xh\ndd-jb\nxp-wi\ncf-cj\nhm-zj\nle-sa\nwf-ty\nqx-xq\noi-rr\nbl-og\nmq-hj\ndw-xi\naw-ap\nsk-cs\nwu-yq\ngm-zq\nna-ry\nwp-pj\nne-gy\ndt-yn\nau-bm\nrk-ur\nnm-oi\naf-zm\ncd-ss\ndj-ez\ncf-oy\nce-md\nth-kz\nnt-cd\nrm-iz\njz-fs\nni-qo\njx-do\nzy-xe\nls-uq\nsy-jt\nwa-xh\nlf-lv\nys-jt\nij-wg\njw-mw\nbk-ef\nyx-ek\nvr-cm\njv-sk\ndw-ej\nmo-pq\nov-pl\nfz-ge\nmt-ep\ncq-hz\nza-zc\nlj-uy\nrv-ae\nse-ln\nkw-ze\nwo-ln\nvo-zw\nwd-fd\nxo-pl\nmx-gc\nln-lr\nsy-rw\ngy-fs\nzy-ea\nkc-er\nfl-l" <> ...}

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ```elixir

     

       26
       26
       +
       connections =

     

       27
       27
       +
         puzzle_input

     

       28
       28
       +
         |> String.split("\n", trim: true)

     

       29
       29
       +
         |> Enum.map(fn <<a::binary-2, "-", b::binary-2>> ->

     

       30
       30
       +
           {a, b}

     

       31
       31
       +
         end)

     

       32
       32
       +
       ```

     

       33
       33
       +
       

     

       34
       34
       +
       <!-- livebook:{"output":true} -->

     

       35
       35
       +
       

     

       36
       36
       +
       ```

     

       37
       37
       +
       [

     

       38
       38
       +
         {"on", "za"},

     

       39
       39
       +
         {"bp", "hs"},

     

       40
       40
       +
         {"vc", "bg"},

     

       41
       41
       +
         {"tm", "us"},

     

       42
       42
       +
         {"zf", "ox"},

     

       43
       43
       +
         {"ib", "lc"},

     

       44
       44
       +
         {"uo", "zs"},

     

       45
       45
       +
         {"ov", "qj"},

     

       46
       46
       +
         {"ll", "eb"},

     

       47
       47
       +
         {"iy", "tq"},

     

       48
       48
       +
         {"bg", "by"},

     

       49
       49
       +
         {"un", "ix"},

     

       50
       50
       +
         {"gi", "do"},

     

       51
       51
       +
         {"rv", "ou"},

     

       52
       52
       +
         {"yp", "qu"},

     

       53
       53
       +
         {"qb", "um"},

     

       54
       54
       +
         {"qs", "dn"},

     

       55
       55
       +
         {"ru", "ro"},

     

       56
       56
       +
         {"et", "fw"},

     

       57
       57
       +
         {"yx", "jt"},

     

       58
       58
       +
         {"ns", "iz"},

     

       59
       59
       +
         {"od", "rc"},

     

       60
       60
       +
         {"ny", "ap"},

     

       61
       61
       +
         {"vb", "fd"},

     

       62
       62
       +
         {"wf", "wr"},

     

       63
       63
       +
         {"yh", "qy"},

     

       64
       64
       +
         {"fa", "ct"},

     

       65
       65
       +
         {"qo", "fv"},

     

       66
       66
       +
         {"ig", "jv"},

     

       67
       67
       +
         {"qi", "ff"},

     

       68
       68
       +
         {"nj", "ii"},

     

       69
       69
       +
         {"sa", "gg"},

     

       70
       70
       +
         {"cp", "un"},

     

       71
       71
       +
         {"ez", "kh"},

     

       72
       72
       +
         {"vs", "du"},

     

       73
       73
       +
         {"gp", "qs"},

     

       74
       74
       +
         {"pt", "qj"},

     

       75
       75
       +
         {"yp", "my"},

     

       76
       76
       +
         {"jf", "sz"},

     

       77
       77
       +
         {"yo", "gm"},

     

       78
       78
       +
         {"fn", "xw"},

     

       79
       79
       +
         {"iu", "xr"},

     

       80
       80
       +
         {"se", "ox"},

     

       81
       81
       +
         {"mw", "ie"},

     

       82
       82
       +
         {"fw", "br"},

     

       83
       83
       +
         {"xy", "iu"},

     

       84
       84
       +
         {"qw", "wi"},

     

       85
       85
       +
         {"xc", "dq"},

     

       86
       86
       +
         {"vb", ...},

     

       87
       87
       +
         {...},

     

       88
       88
       +
         ...

     

       89
       89
       +
       ]

     

       90
       90
       +
       ```

     

       91
       91
       +
       

     

       92
       92
       +
       ```elixir

     

       93
       93
       +
       party =

     

       94
       94
       +
         Graph.new(type: :undirected)

     

       95
       95
       +
         |> Graph.add_edges(connections)

     

       96
       96
       +
       ```

     

       97
       97
       +
       

     

       98
       98
       +
       <!-- livebook:{"output":true} -->

     

       99
       99
       +
       

     

       100
       100
       +
       ```

     

       101
       101
       +
       #Graph<type: undirected, num_vertices: 520, num_edges: 3380>

     

       102
       102
       +
       ```

     

       103
       103
       +
       

     

       104
       104
       +
       ```elixir

     

       105
       105
       +
       cliques = Graph.cliques(party)

     

       106
       106
       +
       ```

     

       107
       107
       +
       

     

       108
       108
       +
       <!-- livebook:{"output":true} -->

     

       109
       109
       +
       

     

       110
       110
       +
       ```

     

       111
       111
       +
       [

     

       112
       112
       +
         ["yf", "dk", "dy", "hm", "vx", "zj", "ec", "eg", "ko", "kx", "tw", "ux"],

     

       113
       113
       +
         ["yf", "dk", "hm", "vx", "zj", "ec", "eg", "qg", "ko", "kx", "tw", "ux"],

     

       114
       114
       +
         ["yf", "ob"],

     

       115
       115
       +
         ["xa", "wl", "lx", "lq", "jy", "in", "hy", "lw", "qd", "fu", "ub", "og"],

     

       116
       116
       +
         ["xa", "wl", "lx", "jy", "bl", "in", "hy", "lw", "qd", "fu", "ub", "og"],

     

       117
       117
       +
         ["xa", "wi"],

     

       118
       118
       +
         ["bd", "cb", "it", "ut", "fq", "hs", "ur", "ly", "tx", "yg", "ui", "gl"],

     

       119
       119
       +
         ["bd", "cb", "it", "ut", "fq", "ur", "ly", "tx", "yg", "ui", "gl", "rk"],

     

       120
       120
       +
         ["bd", "bu"],

     

       121
       121
       +
         ["nm", "qb", "gv", "nf", "oi", "tg", "uj", "yd", "rr", "tr", "vv", "mg"],

     

       122
       122
       +
         ["nm", "qb", "gv", "nf", "oi", "tg", "uj", "yd", "rr", "tr", "vv", "zp"],

     

       123
       123
       +
         ["nm", "ge"],

     

       124
       124
       +
         ["dk", "jn"],

     

       125
       125
       +
         ["cn", "lh", "di", "xm", "cm", "oe", "vi", "ho", "fg", "mt", "io", "dv"],

     

       126
       126
       +
         ["cn", "zt"],

     

       127
       127
       +
         ["cn", "jl"],

     

       128
       128
       +
         ["qp", "xd"],

     

       129
       129
       +
         ["qp", "zq", "qk", "uu", "cy", "fp", "ay", "yo", "gm", "vj", "ps", "fr"],

     

       130
       130
       +
         ["qp", "zq", "qk", "uu", "cy", "ay", "yo", "gm", "vj", "jl", "ps", "fr"],

     

       131
       131
       +
         ["xq", "qx", "rg", "wc", "um", "rv", "ae", "kw", "lj", "ze", "wq", "ou"],

     

       132
       132
       +
         ["xq", "kg"],

     

       133
       133
       +
         ["xq", "qo"],

     

       134
       134
       +
         ["ti", "et", "bu", "xk", "ix", "fw", "un", "ri", "cp", "br", "gr", "ch"],

     

       135
       135
       +
         ["ti", "et", "bu", "xk", "fw", "un", "ri", "cp", "br", "gr", "ch", "yw"],

     

       136
       136
       +
         ["ti", "ab"],

     

       137
       137
       +
         ["nh", "hv", "id", "ap", "fv", "ny", "pb", "ni", "aw", "nx", "vk", "qo"],

     

       138
       138
       +
         ["nh", "pj"],

     

       139
       139
       +
         ["nh", "lk"],

     

       140
       140
       +
         ["ys", "ib", "dg", "vr", "yx", "jt", "ek", "lt", "sy", "vm", "lc", "rw"],

     

       141
       141
       +
         ["ys", "ib", "dg", "yx", "jt", "pg", "ek", "lt", "sy", "vm", "lc", "rw"],

     

       142
       142
       +
         ["ys", "tl"],

     

       143
       143
       +
         ["cb", "ha"],

     

       144
       144
       +
         ["ue", "dd", "kd", "zm", "kt", "il", "af", "xx", "vl", "xl", "jd", "rx"],

     

       145
       145
       +
         ["ue", "dd", "kd", "kt", "il", "af", "xx", "vl", "xl", "jd", "rx", "pz"],

     

       146
       146
       +
         ["ue", "bh"],

     

       147
       147
       +
         ["jg", "cx", "fo", "ro", "ru", "oo", "dh", "as", "zx", "ke", "om", "gu"],

     

       148
       148
       +
         ["jg", "cx", "fo", "ro", "ru", "dh", "as", "sm", "zx", "ke", "om", "gu"],

     

       149
       149
       +
         ["jg", "cy"],

     

       150
       150
       +
         ["bz", "fz", "qi", "tn", "xg", "dc", "ge", "sb", "df", "hu", "vd", ...],

     

       151
       151
       +
         ["bz", "ae"],

     

       152
       152
       +
         ["bz", "gm"],

     

       153
       153
       +
         ["im", "dz", "ab", "sz", "ej", "mz", "pv", "rj", ...],

     

       154
       154
       +
         ["im", "dz", "sz", "ej", "mz", "pv", "rj", ...],

     

       155
       155
       +
         ["im", "ps"],

     

       156
       156
       +
         ["sw", "gc", "si", "aj", "is", ...],

     

       157
       157
       +
         ["sw", "gc", "si", "aj", ...],

     

       158
       158
       +
         ["sw", "fn"],

     

       159
       159
       +
         ["cg", "zt", ...],

     

       160
       160
       +
         ["cg", ...],

     

       161
       161
       +
         [...],

     

       162
       162
       +
         ...

     

       163
       163
       +
       ]

     

       164
       164
       +
       ```

     

       165
       165
       +
       

     

       166
       166
       +
       ## Part 1

     

       167
       167
       +
       

     

       168
       168
       +
       ```elixir

     

       169
       169
       +
       cliques

     

       170
       170
       +
       |> Stream.flat_map(fn clique ->

     

       171
       171
       +
         if length(clique) >= 3 do

     

       172
       172
       +
           Combination.combine(clique, 3)

     

       173
       173
       +
         else

     

       174
       174
       +
           []

     

       175
       175
       +
         end

     

       176
       176
       +
       end)

     

       177
       177
       +
       |> Stream.filter(fn clique -> Enum.any?(clique, &String.starts_with?(&1, "t")) end)

     

       178
       178
       +
       |> MapSet.new()

     

       179
       179
       +
       |> MapSet.size()

     

       180
       180
       +
       ```

     

       181
       181
       +
       

     

       182
       182
       +
       <!-- livebook:{"output":true} -->

     

       183
       183
       +
       

     

       184
       184
       +
       ```

     

       185
       185
       +
       1248

     

       186
       186
       +
       ```

     

       187
       187
       +
       

     

       188
       188
       +
       ## Part 2

     

       189
       189
       +
       

     

       190
       190
       +
       ```elixir

     

       191
       191
       +
       cliques

     

       192
       192
       +
       |> Enum.max_by(&length/1)

     

       193
       193
       +
       |> Enum.sort()

     

       194
       194
       +
       |> Enum.join(",")

     

       195
       195
       +
       ```

     

       196
       196
       +
       

     

       197
       197
       +
       <!-- livebook:{"output":true} -->

     

       198
       198
       +
       

     

       199
       199
       +
       ```

     

       200
       200
       +
       "aa,cf,cj,cv,dr,gj,iu,jh,oy,qr,xr,xy,zb"

     

       201
       201
       +
       ```

     

       202
       202
       +
       

     

       203
       203
       +
       <!-- livebook:{"offset":9387,"stamp":{"token":"XCP.YMMjV81j86GOTx0hGVW-U0w7aqvuBdig59tmj2pqELbNIP0HXjbZA1WSQwLRMCUIuzZ1PLs6_0ehAVdgp7sj4Wuc6QaM8KCZ3j-zJrTUmr2_hxaACLOnkijsz6m2hIS8E6Q","version":2}} -->

+67

2025/day01.livemd

···

       1
       1
       +
       # Day 01

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Setup

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "1", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       instructions =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n", trim: true)

     

       20
       20
       +
         |> Enum.map(fn <<dir>> <> rest ->

     

       21
       21
       +
           num = String.to_integer(rest)

     

       22
       22
       +
       

     

       23
       23
       +
           if dir == ?R do

     

       24
       24
       +
             {div(num, 100), rem(num, 100)}

     

       25
       25
       +
           else

     

       26
       26
       +
             {div(num, 100), -rem(num, 100)}

     

       27
       27
       +
           end

     

       28
       28
       +
         end)

     

       29
       29
       +
       ```

     

       30
       30
       +
       

     

       31
       31
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       32
       32
       +
       

     

       33
       33
       +
       ## Part 1

     

       34
       34
       +
       

     

       35
       35
       +
       ```elixir

     

       36
       36
       +
       Enum.scan(instructions, 50, fn {_rot, val}, curr ->

     

       37
       37
       +
         Integer.mod(curr + val, 100)

     

       38
       38
       +
       end)

     

       39
       39
       +
       |> Enum.count(& &1 == 0)

     

       40
       40
       +
       ```

     

       41
       41
       +
       

     

       42
       42
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       43
       43
       +
       

     

       44
       44
       +
       ## Part 2

     

       45
       45
       +
       

     

       46
       46
       +
       ```elixir

     

       47
       47
       +
       <<0x434C49434B::40>>

     

       48
       48
       +
       ```

     

       49
       49
       +
       

     

       50
       50
       +
       ```elixir

     

       51
       51
       +
       Enum.reduce(instructions, {50, 0}, fn {rot, val}, {curr, sum} ->

     

       52
       52
       +
         next = curr + val

     

       53
       53
       +
       

     

       54
       54
       +
         pass =

     

       55
       55
       +
           cond do

     

       56
       56
       +
             curr == 0 and next < 0 -> 0

     

       57
       57
       +
             next not in 0..99 -> 1

     

       58
       58
       +
             rem(next, 100) == 0 -> 1

     

       59
       59
       +
             true -> 0

     

       60
       60
       +
           end

     

       61
       61
       +
       

     

       62
       62
       +
         {Integer.mod(next, 100), sum + pass + rot}

     

       63
       63
       +
       end)

     

       64
       64
       +
       |> elem(1)

     

       65
       65
       +
       ```

     

       66
       66
       +
       

     

       67
       67
       +
       <!-- livebook:{"offset":1270,"stamp":{"token":"XCP.fAfBqYepop325WQHLC6mJPz_Wpl7bDiz0qRbslvjG31mRJWcHALfstxgj_iOj3nf9_GCzh_WmPiNR4MnzZidF2bz_zMMXHTEo18hp1z3gQDdi5hTSO8UG4YSYnUEtGxO2g","version":2}} -->

+85

2025/day02.livemd

···

       1
       1
       +
       # Day 02

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parsing

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "2", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       ranges =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.trim()

     

       20
       20
       +
         |> String.split(",")

     

       21
       21
       +
         |> Enum.map(fn range ->

     

       22
       22
       +
           range

     

       23
       23
       +
           |> String.split("-")

     

       24
       24
       +
           |> Enum.map(&String.to_integer/1)

     

       25
       25
       +
           |> then(&apply(Range, :new, &1))

     

       26
       26
       +
         end)

     

       27
       27
       +
       |> Enum.sort_by(& &1.last)

     

       28
       28
       +
       ```

     

       29
       29
       +
       

     

       30
       30
       +
       ## Implementation

     

       31
       31
       +
       

     

       32
       32
       +
       ```elixir

     

       33
       33
       +
       defmodule ElfRanges do

     

       34
       34
       +
         def valid?(num) do

     

       35
       35
       +
           len = floor(:math.log10(num)) + 1

     

       36
       36
       +
       

     

       37
       37
       +
           valid_n?(num, len, 2)

     

       38
       38
       +
         end

     

       39
       39
       +
       

     

       40
       40
       +
         def valid_any?(num) do

     

       41
       41
       +
           len = floor(:math.log10(num)) + 1

     

       42
       42
       +
       

     

       43
       43
       +
           Enum.all?(2..len//1, &valid_n?(num, len, &1))

     

       44
       44
       +
         end

     

       45
       45
       +
       

     

       46
       46
       +
         def valid_n?(num, len, n) do

     

       47
       47
       +
           if rem(len, n) == 0 do

     

       48
       48
       +
             step = 10 ** div(len, n)

     

       49
       49
       +
       

     

       50
       50
       +
             Stream.unfold(num, fn

     

       51
       51
       +
               0 -> nil

     

       52
       52
       +
               val -> {rem(val, step), div(val, step)}

     

       53
       53
       +
             end)

     

       54
       54
       +
             |> Enum.dedup()

     

       55
       55
       +
             |> then(&(not match?([_], &1)))

     

       56
       56
       +
           else

     

       57
       57
       +
             true

     

       58
       58
       +
           end

     

       59
       59
       +
         end

     

       60
       60
       +
       end

     

       61
       61
       +
       ```

     

       62
       62
       +
       

     

       63
       63
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       64
       64
       +
       

     

       65
       65
       +
       ## Part 1

     

       66
       66
       +
       

     

       67
       67
       +
       ```elixir

     

       68
       68
       +
       ranges

     

       69
       69
       +
       |> Stream.flat_map(& &1)

     

       70
       70
       +
       |> Stream.reject(&ElfRanges.valid?/1)

     

       71
       71
       +
       |> Enum.sum()

     

       72
       72
       +
       ```

     

       73
       73
       +
       

     

       74
       74
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       75
       75
       +
       

     

       76
       76
       +
       ## Part 2

     

       77
       77
       +
       

     

       78
       78
       +
       ```elixir

     

       79
       79
       +
       ranges

     

       80
       80
       +
       |> Stream.flat_map(& &1)

     

       81
       81
       +
       |> Stream.reject(&ElfRanges.valid_any?/1)

     

       82
       82
       +
       |> Enum.sum()

     

       83
       83
       +
       ```

     

       84
       84
       +
       

     

       85
       85
       +
       <!-- livebook:{"offset":1551,"stamp":{"token":"XCP.GvC7N5ZC0xuQ3hRuVxd-rh5rJDKVZKJfmwspDkAuCFbjn8qdOUksP9Iy1GRtd7t5yLCV6nkfhXZlp_lTw8eZZBcwItn6IlML-jrjiORJQvkuXOHvzlOY17rIAaASRKvS3w","version":2}} -->

+56

2025/day03.livemd

···

       1
       1
       +
       # Day 03

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parse

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIzIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "3", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       batteries =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n", trim: true)

     

       20
       20
       +
         |> Enum.map(fn row ->

     

       21
       21
       +
           row

     

       22
       22
       +
           |> String.to_charlist()

     

       23
       23
       +
           |> Enum.map(& &1 - ?0)

     

       24
       24
       +
         end)

     

       25
       25
       +
       ```

     

       26
       26
       +
       

     

       27
       27
       +
       ```elixir

     

       28
       28
       +
       defmodule Joltage do

     

       29
       29
       +
         def make_largest(list, n) do

     

       30
       30
       +
           to_remove = length(list) - n

     

       31
       31
       +
           Enum.reduce(1..to_remove, list, fn _, acc -> make_larger(acc) end)

     

       32
       32
       +
         end

     

       33
       33
       +
         

     

       34
       34
       +
         def make_larger([_]), do: []

     

       35
       35
       +
         def make_larger([a, b | rest]) when a < b, do: [b | rest]

     

       36
       36
       +
         def make_larger([b | rest]), do: [b | make_larger(rest)]

     

       37
       37
       +
       end

     

       38
       38
       +
       ```

     

       39
       39
       +
       

     

       40
       40
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       41
       41
       +
       

     

       42
       42
       +
       ## Part 1

     

       43
       43
       +
       

     

       44
       44
       +
       ```elixir

     

       45
       45
       +
       Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 2)))

     

       46
       46
       +
       ```

     

       47
       47
       +
       

     

       48
       48
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       49
       49
       +
       

     

       50
       50
       +
       ## Part 2

     

       51
       51
       +
       

     

       52
       52
       +
       ```elixir

     

       53
       53
       +
       Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 12)))

     

       54
       54
       +
       ```

     

       55
       55
       +
       

     

       56
       56
       +
       <!-- livebook:{"offset":1212,"stamp":{"token":"XCP.fo1ohV8LylIz8VmOAj7rlJ4Jn5KPGtiiFfsDRmp0pFSXCESjhfmQ11wOwEVmq9HM-Zn8fozQDsOoJbfgbM5LJPVE9c0pw2tYKbteOOGNqHI3PTIkuBnv8ZPW6oYwWAZy4A","version":2}} -->

+82

2025/day04.livemd

···

       1
       1
       +
       # Day 04

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parse

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI0Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "4", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       rolls =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n", trim: true)

     

       20
       20
       +
         |> Enum.with_index()

     

       21
       21
       +
         |> Enum.flat_map(fn {line, row} ->

     

       22
       22
       +
           line

     

       23
       23
       +
           |> String.to_charlist()

     

       24
       24
       +
           |> Enum.with_index()

     

       25
       25
       +
           |> Enum.filter(&(elem(&1, 0) == ?@))

     

       26
       26
       +
           |> Enum.map(&{elem(&1, 1), row})

     

       27
       27
       +
         end)

     

       28
       28
       +
         |> MapSet.new()

     

       29
       29
       +
       ```

     

       30
       30
       +
       

     

       31
       31
       +
       ## Implementation

     

       32
       32
       +
       

     

       33
       33
       +
       ```elixir

     

       34
       34
       +
       defmodule PaperRolls do

     

       35
       35
       +
         defp adjacent({x, y}) do

     

       36
       36
       +
           for dx <- -1..1,

     

       37
       37
       +
               dy <- -1..1,

     

       38
       38
       +
               {dx, dy} != {0, 0},

     

       39
       39
       +
               do: {x + dx, y + dy}

     

       40
       40
       +
         end

     

       41
       41
       +
       

     

       42
       42
       +
         def movable?(pos, map) do

     

       43
       43
       +
           pos

     

       44
       44
       +
           |> adjacent()

     

       45
       45
       +
           |> Enum.count(&(&1 in map))

     

       46
       46
       +
           |> then(&(&1 < 4))

     

       47
       47
       +
         end

     

       48
       48
       +
       end

     

       49
       49
       +
       ```

     

       50
       50
       +
       

     

       51
       51
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       52
       52
       +
       

     

       53
       53
       +
       ## Part 1

     

       54
       54
       +
       

     

       55
       55
       +
       ```elixir

     

       56
       56
       +
       Enum.count(rolls, &PaperRolls.movable?(&1, rolls))

     

       57
       57
       +
       ```

     

       58
       58
       +
       

     

       59
       59
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       60
       60
       +
       

     

       61
       61
       +
       ## Part 2

     

       62
       62
       +
       

     

       63
       63
       +
       ```elixir

     

       64
       64
       +
       cleaned =

     

       65
       65
       +
         Stream.repeatedly(fn -> [] end)

     

       66
       66
       +
         |> Enum.reduce_while(rolls, fn _, acc ->

     

       67
       67
       +
           removable =

     

       68
       68
       +
             Enum.filter(acc, &PaperRolls.movable?(&1, acc))

     

       69
       69
       +
             |> MapSet.new()

     

       70
       70
       +
       

     

       71
       71
       +
           case MapSet.difference(acc, removable) do

     

       72
       72
       +
             ^acc -> {:halt, acc}

     

       73
       73
       +
             remaining -> {:cont, remaining}

     

       74
       74
       +
           end

     

       75
       75
       +
         end)

     

       76
       76
       +
       ```

     

       77
       77
       +
       

     

       78
       78
       +
       ```elixir

     

       79
       79
       +
       MapSet.size(rolls) - MapSet.size(cleaned)

     

       80
       80
       +
       ```

     

       81
       81
       +
       

     

       82
       82
       +
       <!-- livebook:{"offset":1586,"stamp":{"token":"XCP.-_kcJR24r3dthl7SnpOh24JBI5hDpqMlFjQQDQ0pxtv4UHyaTlGoG4rG5iZxKtgxQoNAxw0K-mowSwehidDfrqewK3r9FHoOcAOIDbOMFd3QGH2X2Ta6KeXd4PlzWSYDBw","version":2}} -->

+54

2025/day05.livemd

···

       1
       1
       +
       # Day 05

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([

     

       5
       5
       +
         :kino_aoc,

     

       6
       6
       +
         :range_set

     

       7
       7
       +
       ])

     

       8
       8
       +
       ```

     

       9
       9
       +
       

     

       10
       10
       +
       ## Parse

     

       11
       11
       +
       

     

       12
       12
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI1Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       13
       13
       +
       

     

       14
       14
       +
       ```elixir

     

       15
       15
       +
       {:ok, puzzle_input} =

     

       16
       16
       +
         KinoAOC.download_puzzle("2025", "5", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       17
       17
       +
       ```

     

       18
       18
       +
       

     

       19
       19
       +
       ```elixir

     

       20
       20
       +
       [fresh, ingridients] = String.split(puzzle_input, "\n\n")

     

       21
       21
       +
       

     

       22
       22
       +
       fresh =

     

       23
       23
       +
         fresh

     

       24
       24
       +
         |> String.split()

     

       25
       25
       +
         |> Enum.map(fn range ->

     

       26
       26
       +
           [a, b] = range |> String.split("-") |> Enum.map(&String.to_integer/1)

     

       27
       27
       +
       

     

       28
       28
       +
           a..b//1

     

       29
       29
       +
         end)

     

       30
       30
       +
         |> RangeSet.new()

     

       31
       31
       +
       

     

       32
       32
       +
       ingridients =

     

       33
       33
       +
         ingridients

     

       34
       34
       +
         |> String.split()

     

       35
       35
       +
         |> Enum.map(&String.to_integer/1)

     

       36
       36
       +
       ```

     

       37
       37
       +
       

     

       38
       38
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       39
       39
       +
       

     

       40
       40
       +
       ## Part 1

     

       41
       41
       +
       

     

       42
       42
       +
       ```elixir

     

       43
       43
       +
       Enum.count(ingridients, & &1 in fresh)

     

       44
       44
       +
       ```

     

       45
       45
       +
       

     

       46
       46
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       47
       47
       +
       

     

       48
       48
       +
       ## Part 2

     

       49
       49
       +
       

     

       50
       50
       +
       ```elixir

     

       51
       51
       +
       Enum.count(fresh)

     

       52
       52
       +
       ```

     

       53
       53
       +
       

     

       54
       54
       +
       <!-- livebook:{"offset":973,"stamp":{"token":"XCP.GHEtbWlG6LHz6I0d5Y_d4738EDILulvQyP1NtPISLeYWo9atG0Ailm43-eswn0JGS5h2z5Yxb8Xi8nGJLqUkj41eqpnT_u7NxVCT4ceeKMBsd5R-EuxBw0P7vLlBab68MA","version":2}} -->

+68

2025/day06.livemd

···

       1
       1
       +
       # Day 06

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Setup

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI2Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "6", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       {tasks, [ops]} =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n", trim: true)

     

       20
       20
       +
         |> Enum.split(-1)

     

       21
       21
       +
       ```

     

       22
       22
       +
       

     

       23
       23
       +
       ```elixir

     

       24
       24
       +
       ops =

     

       25
       25
       +
         ops

     

       26
       26
       +
         |> String.split()

     

       27
       27
       +
         |> Enum.map(&String.to_atom/1)

     

       28
       28
       +
       ```

     

       29
       29
       +
       

     

       30
       30
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       31
       31
       +
       

     

       32
       32
       +
       ## Part 1

     

       33
       33
       +
       

     

       34
       34
       +
       ```elixir

     

       35
       35
       +
       tasks

     

       36
       36
       +
       |> Enum.map(&String.split/1)

     

       37
       37
       +
       |> Enum.zip_with(fn numbers -> Enum.map(numbers, &String.to_integer/1) end)

     

       38
       38
       +
       |> Enum.zip(ops)

     

       39
       39
       +
       |> Enum.sum_by(fn

     

       40
       40
       +
         {nums, :+} -> Enum.sum(nums)

     

       41
       41
       +
         {nums, :*} -> Enum.product(nums)

     

       42
       42
       +
       end)

     

       43
       43
       +
       ```

     

       44
       44
       +
       

     

       45
       45
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       46
       46
       +
       

     

       47
       47
       +
       ## Part 2

     

       48
       48
       +
       

     

       49
       49
       +
       ```elixir

     

       50
       50
       +
       tasks

     

       51
       51
       +
       |> Enum.map(&String.to_charlist/1)

     

       52
       52
       +
       |> Enum.zip_with(&(&1 |> List.to_string() |> String.trim()))

     

       53
       53
       +
       |> Enum.chunk_while(

     

       54
       54
       +
         [],

     

       55
       55
       +
         fn

     

       56
       56
       +
           "", acc -> {:cont, acc, []}

     

       57
       57
       +
           num, acc -> {:cont, [String.to_integer(num) | acc]}

     

       58
       58
       +
         end,

     

       59
       59
       +
         &{:cont, &1, []}

     

       60
       60
       +
       )

     

       61
       61
       +
       |> Enum.zip(ops)

     

       62
       62
       +
       |> Enum.sum_by(fn

     

       63
       63
       +
         {nums, :+} -> Enum.sum(nums)

     

       64
       64
       +
         {nums, :*} -> Enum.product(nums)

     

       65
       65
       +
       end)

     

       66
       66
       +
       ```

     

       67
       67
       +
       

     

       68
       68
       +
       <!-- livebook:{"offset":1319,"stamp":{"token":"XCP.wqKPUf7KHN-UzqY1O8_n61vLL2ksAE_kGnIsQL0IpamJTD-NEX9_HbYK4H0y_NM8lKhqDz4rZ-TMFsXjuQ3n2-URGSNh_SCmDtJIbJBAP3mbiCwyN52oyGL0Nq5eD424MQ","version":2}} -->

+117

2025/day07.livemd

···

       1
       1
       +
       # Day 07

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc, :image])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parse

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI3Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "7", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       [start | rest] = String.split(puzzle_input)

     

       18
       18
       +
       

     

       19
       19
       +
       start_col = byte_size(start) - byte_size(String.trim_leading(start, "."))

     

       20
       20
       +
       ```

     

       21
       21
       +
       

     

       22
       22
       +
       ```elixir

     

       23
       23
       +
       splitters =

     

       24
       24
       +
         Enum.map(rest, fn row ->

     

       25
       25
       +
           row

     

       26
       26
       +
           |> String.to_charlist()

     

       27
       27
       +
           |> Enum.with_index()

     

       28
       28
       +
           |> Enum.filter(&(elem(&1, 0) == ?^))

     

       29
       29
       +
           |> MapSet.new(&elem(&1, 1))

     

       30
       30
       +
         end)

     

       31
       31
       +
       ```

     

       32
       32
       +
       

     

       33
       33
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       34
       34
       +
       

     

       35
       35
       +
       ## Part 1

     

       36
       36
       +
       

     

       37
       37
       +
       ```elixir

     

       38
       38
       +
       Enum.reduce(splitters, {MapSet.new([start_col]), 0}, fn splits, {beams, count} ->

     

       39
       39
       +
         import MapSet, only: [intersection: 2, difference: 2, union: 2]

     

       40
       40
       +
         

     

       41
       41
       +
         hits = intersection(beams, splits)

     

       42
       42
       +
         new_beams = for hit <- hits, dx <- [-1, 1], into: MapSet.new(), do: hit + dx

     

       43
       43
       +
         beams = beams |> difference(hits) |> union(new_beams)

     

       44
       44
       +
       

     

       45
       45
       +
         {beams, MapSet.size(hits) + count}

     

       46
       46
       +
       end)

     

       47
       47
       +
       ```

     

       48
       48
       +
       

     

       49
       49
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       50
       50
       +
       

     

       51
       51
       +
       ## Part 2

     

       52
       52
       +
       

     

       53
       53
       +
       ```elixir

     

       54
       54
       +
       Enum.reduce(splitters, %{start_col => 1}, fn splits, beams ->

     

       55
       55
       +
         Enum.reduce(splits, beams, fn s, acc ->

     

       56
       56
       +
           case Map.pop(acc, s) do

     

       57
       57
       +
             {nil, map} ->

     

       58
       58
       +
               map

     

       59
       59
       +
       

     

       60
       60
       +
             {count, map} ->

     

       61
       61
       +
               Map.merge(

     

       62
       62
       +
                 map,

     

       63
       63
       +
                 %{

     

       64
       64
       +
                   (s + 1) => count,

     

       65
       65
       +
                   (s - 1) => count

     

       66
       66
       +
                 },

     

       67
       67
       +
                 fn _k, a, b -> a + b end

     

       68
       68
       +
               )

     

       69
       69
       +
           end

     

       70
       70
       +
         end)

     

       71
       71
       +
       end)

     

       72
       72
       +
       |> Enum.sum_by(&elem(&1, 1))

     

       73
       73
       +
       ```

     

       74
       74
       +
       

     

       75
       75
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       76
       76
       +
       

     

       77
       77
       +
       ## Image

     

       78
       78
       +
       

     

       79
       79
       +
       ```elixir

     

       80
       80
       +
       height = length([start | rest])

     

       81
       81
       +
       width = byte_size(start)

     

       82
       82
       +
       

     

       83
       83
       +
       {height, width}

     

       84
       84
       +
       ```

     

       85
       85
       +
       

     

       86
       86
       +
       ```elixir

     

       87
       87
       +
       Image.new!(width, height)

     

       88
       88
       +
       |> Image.mutate(fn img ->

     

       89
       89
       +
         Image.Draw.point!(img, start_col, 0, color: :yellow)

     

       90
       90
       +
       

     

       91
       91
       +
         splitters

     

       92
       92
       +
         |> Enum.with_index(1)

     

       93
       93
       +
         |> Enum.reduce(MapSet.new([start_col]), fn {splits, y}, beams ->

     

       94
       94
       +
           import MapSet, only: [intersection: 2, difference: 2, union: 2]

     

       95
       95
       +
       

     

       96
       96
       +
           for x <- beams do

     

       97
       97
       +
             Image.Draw.point(img, x, y, color: :green)

     

       98
       98
       +
           end

     

       99
       99
       +
       

     

       100
       100
       +
           for x <- splits do

     

       101
       101
       +
             Image.Draw.point(img, x, y, color: :red)

     

       102
       102
       +
           end

     

       103
       103
       +
           

     

       104
       104
       +
           hits = intersection(beams, splits)

     

       105
       105
       +
           new_beams = for hit <- hits, dx <- [-1, 1], into: MapSet.new(), do: hit + dx

     

       106
       106
       +
           beams = beams |> difference(hits) |> union(new_beams)

     

       107
       107
       +
       

     

       108
       108
       +
           beams

     

       109
       109
       +
         end)

     

       110
       110
       +
       

     

       111
       111
       +
         img

     

       112
       112
       +
       end)

     

       113
       113
       +
       |> then(fn {:ok, img} -> img end)

     

       114
       114
       +
       |> Image.resize!(5, interpolate: :nearest)

     

       115
       115
       +
       ```

     

       116
       116
       +
       

     

       117
       117
       +
       <!-- livebook:{"offset":2553,"stamp":{"token":"XCP.6lQNAY-yntHErm41fMi4xgwAxGSGZ7l6ekgYSe6b3Exm48kBKgyIoCK62LLVaeQP-1PfZFpd3tzHwAIA8OWTsnRBuWsxmex5qixMa-l4DaThm-jrSaVsE3Qj4aO-TrqdqA","version":2}} -->

+116

2025/day08.livemd

···

       1
       1
       +
       # Day 08

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parse

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI4Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "8", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       boxes =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split()

     

       20
       20
       +
         |> Enum.map(fn raw ->

     

       21
       21
       +
           raw

     

       22
       22
       +
           |> String.split(",")

     

       23
       23
       +
           |> Enum.map(&String.to_integer/1)

     

       24
       24
       +
           |> List.to_tuple()

     

       25
       25
       +
         end)

     

       26
       26
       +
         |> Enum.sort()

     

       27
       27
       +
       ```

     

       28
       28
       +
       

     

       29
       29
       +
       ## Setup

     

       30
       30
       +
       

     

       31
       31
       +
       ```elixir

     

       32
       32
       +
       defmodule JunctionBoxes do

     

       33
       33
       +
         def all_pairs([]), do: []

     

       34
       34
       +
       

     

       35
       35
       +
         def all_pairs([x | rest]) do

     

       36
       36
       +
           for(y <- rest, do: {x, y}) ++ all_pairs(rest)

     

       37
       37
       +
         end

     

       38
       38
       +
       

     

       39
       39
       +
         def dist2({ax, ay, az}, {bx, by, bz}) do

     

       40
       40
       +
           dx = ax - bx

     

       41
       41
       +
           dy = ay - by

     

       42
       42
       +
           dz = az - bz

     

       43
       43
       +
       

     

       44
       44
       +
           dx ** 2 + dy ** 2 + dz ** 2

     

       45
       45
       +
         end

     

       46
       46
       +
       

     

       47
       47
       +
         def group([], {a, b}), do: [MapSet.new([a, b])]

     

       48
       48
       +
         def group([set | rest], {a, b}) do

     

       49
       49
       +
           cond do

     

       50
       50
       +
             a in set and b in set -> [set | rest]

     

       51
       51
       +
             a in set or b in set -> set |> MapSet.put(a) |> MapSet.put(b) |> do_squash(rest, a, b, [])

     

       52
       52
       +
             true -> [set | group(rest, {a, b})]

     

       53
       53
       +
           end

     

       54
       54
       +
         end

     

       55
       55
       +
       

     

       56
       56
       +
         defp do_squash(curr, [], _, _, acc), do: [curr | acc]

     

       57
       57
       +
         defp do_squash(curr, [x | rest], a, b, acc) do

     

       58
       58
       +
           if a in x or b in x do

     

       59
       59
       +
             [MapSet.union(curr, x) | acc ++ rest]

     

       60
       60
       +
           else

     

       61
       61
       +
             do_squash(curr, rest, a, b, [x | acc])

     

       62
       62
       +
           end

     

       63
       63
       +
         end

     

       64
       64
       +
       end

     

       65
       65
       +
       ```

     

       66
       66
       +
       

     

       67
       67
       +
       ```elixir

     

       68
       68
       +
       sorted_pairs =

     

       69
       69
       +
         JunctionBoxes.all_pairs(boxes)

     

       70
       70
       +
         |> Enum.sort_by(fn {a, b} -> JunctionBoxes.dist2(a, b) end)

     

       71
       71
       +
       ```

     

       72
       72
       +
       

     

       73
       73
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       74
       74
       +
       

     

       75
       75
       +
       ## Part 1

     

       76
       76
       +
       

     

       77
       77
       +
       ```elixir

     

       78
       78
       +
       sorted_pairs

     

       79
       79
       +
       |> Enum.take(1000)

     

       80
       80
       +
       |> Enum.reduce([], &JunctionBoxes.group(&2, &1))

     

       81
       81
       +
       |> Enum.map(&MapSet.size/1)

     

       82
       82
       +
       |> Enum.sort(:desc)

     

       83
       83
       +
       |> Enum.take(3)

     

       84
       84
       +
       |> Enum.product()

     

       85
       85
       +
       ```

     

       86
       86
       +
       

     

       87
       87
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       88
       88
       +
       

     

       89
       89
       +
       ## Part 2

     

       90
       90
       +
       

     

       91
       91
       +
       ```elixir

     

       92
       92
       +
       box_count = length(boxes)

     

       93
       93
       +
       ```

     

       94
       94
       +
       

     

       95
       95
       +
       ```elixir

     

       96
       96
       +
       {a, b} =

     

       97
       97
       +
         sorted_pairs

     

       98
       98
       +
         |> Enum.reduce_while([], fn pair, acc ->

     

       99
       99
       +
           new_acc = JunctionBoxes.group(acc, pair)

     

       100
       100
       +
       

     

       101
       101
       +
           if MapSet.size(hd(new_acc)) == box_count do

     

       102
       102
       +
             {:halt, pair}

     

       103
       103
       +
           else

     

       104
       104
       +
             {:cont, new_acc}

     

       105
       105
       +
           end

     

       106
       106
       +
         end)

     

       107
       107
       +
       ```

     

       108
       108
       +
       

     

       109
       109
       +
       ```elixir

     

       110
       110
       +
       {ax, _, _} = a

     

       111
       111
       +
       {bx, _, _} = b

     

       112
       112
       +
       

     

       113
       113
       +
       ax * bx

     

       114
       114
       +
       ```

     

       115
       115
       +
       

     

       116
       116
       +
       <!-- livebook:{"offset":2222,"stamp":{"token":"XCP.sY5bJOGXuU_ZotobOVN6-zcg0TDJGEWVaJESs_-qDHzeEplFoStZ8_c6TRpS5eVpqnzoaj-gsLs_drksuYvMCDcM3T7_M6p9s09DRSKgMU2YB_Ogb0CB6_gAZamF2zEIUw","version":2}} -->

+167

2025/day09.livemd

···

       1
       1
       +
       # Day 09

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc, :image])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Setup

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI5Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "9", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       tiles =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split()

     

       20
       20
       +
         |> Enum.map(fn raw ->

     

       21
       21
       +
           raw

     

       22
       22
       +
           |> String.split(",")

     

       23
       23
       +
           |> Enum.map(&String.to_integer/1)

     

       24
       24
       +
           |> List.to_tuple()

     

       25
       25
       +
         end)

     

       26
       26
       +
       ```

     

       27
       27
       +
       

     

       28
       28
       +
       ## Implementation

     

       29
       29
       +
       

     

       30
       30
       +
       ```elixir

     

       31
       31
       +
       defmodule Combinatorics do

     

       32
       32
       +
         def combinations2(list) do

     

       33
       33
       +
           Stream.unfold(list, fn

     

       34
       34
       +
             [] -> nil

     

       35
       35
       +
             [x | rest] ->

     

       36
       36
       +
               curr = for y <- rest, do: [x, y]

     

       37
       37
       +
       

     

       38
       38
       +
               {curr, rest}

     

       39
       39
       +
           end)

     

       40
       40
       +
           |> Stream.flat_map(& &1)

     

       41
       41
       +
         end

     

       42
       42
       +
       end

     

       43
       43
       +
       ```

     

       44
       44
       +
       

     

       45
       45
       +
       ```elixir

     

       46
       46
       +
       defmodule Rect do

     

       47
       47
       +
         require Record

     

       48
       48
       +
       

     

       49
       49
       +
         Record.defrecordp(:rect, l: 0, t: 0, r: 0, b: 0)

     

       50
       50
       +
       

     

       51
       51
       +
         def new({ax, ay}, {bx, by}) do

     

       52
       52
       +
           rect(l: min(ax, bx), r: max(ax, bx), t: min(ay, by), b: max(ay, by))

     

       53
       53
       +
         end

     

       54
       54
       +
       

     

       55
       55
       +
         def area(rect() = r) do

     

       56
       56
       +
           width(r) * height(r)

     

       57
       57
       +
         end

     

       58
       58
       +
       

     

       59
       59
       +
         def intersect?(

     

       60
       60
       +
               rect(l: al, r: ar, t: at, b: ab),

     

       61
       61
       +
               rect(l: bl, r: br, t: bt, b: bb)

     

       62
       62
       +
             ) do

     

       63
       63
       +
           al < br and ar > bl and at < bb and ab > bt

     

       64
       64
       +
         end

     

       65
       65
       +
       

     

       66
       66
       +
         def width(rect(r: r, l: l)), do: r - l + 1

     

       67
       67
       +
         def height(rect(t: t, b: b)), do: b - t + 1

     

       68
       68
       +
       

     

       69
       69
       +
         def to_svg(rect(l: x, t: y) = r, opts \\ []) do

     

       70
       70
       +
           ~s"""

     

       71
       71
       +
           <rect x="#{x}" y="#{y}" width="#{width(r)}" height="#{height(r)}"

     

       72
       72
       +
           #{Enum.map_join(opts, " ", fn {k, v} -> ~s(#{k}="#{v}") end)} />

     

       73
       73
       +
           """

     

       74
       74
       +
         end

     

       75
       75
       +
       end

     

       76
       76
       +
       ```

     

       77
       77
       +
       

     

       78
       78
       +
       ```elixir

     

       79
       79
       +
       rects =

     

       80
       80
       +
         Combinatorics.combinations2(tiles)

     

       81
       81
       +
         |> Stream.map(fn [a, b] -> Rect.new(a, b) end)

     

       82
       82
       +
         |> Enum.sort()

     

       83
       83
       +
       ```

     

       84
       84
       +
       

     

       85
       85
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       86
       86
       +
       

     

       87
       87
       +
       ## Part 1

     

       88
       88
       +
       

     

       89
       89
       +
       ```elixir

     

       90
       90
       +
       rects

     

       91
       91
       +
       |> Enum.max_by(&Rect.area/1)

     

       92
       92
       +
       |> IO.inspect()

     

       93
       93
       +
       |> Rect.area()

     

       94
       94
       +
       ```

     

       95
       95
       +
       

     

       96
       96
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       97
       97
       +
       

     

       98
       98
       +
       ## Part 2

     

       99
       99
       +
       

     

       100
       100
       +
       ```elixir

     

       101
       101
       +
       edges =

     

       102
       102
       +
         tiles

     

       103
       103
       +
         |> Enum.chunk_every(2, 1, tiles)

     

       104
       104
       +
         |> Enum.map(&apply(Rect, :new, &1))

     

       105
       105
       +
         |> Enum.sort()

     

       106
       106
       +
       ```

     

       107
       107
       +
       

     

       108
       108
       +
       ```elixir

     

       109
       109
       +
       # [{1916, 50285}, {94619, 50285}, {94619, 48466}, {1668, 48466}]

     

       110
       110
       +
       # |> Stream.flat_map(fn a ->

     

       111
       111
       +
       #  for b <- tiles do

     

       112
       112
       +
       #    Rect.new(a, b)

     

       113
       113
       +
       #  end

     

       114
       114
       +
       # end)

     

       115
       115
       +
       rects

     

       116
       116
       +
       |> Enum.reduce({0, nil}, fn r, {max, p} ->

     

       117
       117
       +
         a = Rect.area(r)

     

       118
       118
       +
       

     

       119
       119
       +
         if a > max and not Enum.any?(edges, &Rect.intersect?(r, &1)) do

     

       120
       120
       +
           {a, r}

     

       121
       121
       +
         else

     

       122
       122
       +
           {max, p}

     

       123
       123
       +
         end

     

       124
       124
       +
       end)

     

       125
       125
       +
       ```

     

       126
       126
       +
       

     

       127
       127
       +
       ## Draw

     

       128
       128
       +
       

     

       129
       129
       +
       ```elixir

     

       130
       130
       +
       {{min_x, _}, {max_x, _}} = Enum.min_max(tiles)

     

       131
       131
       +
       ```

     

       132
       132
       +
       

     

       133
       133
       +
       ```elixir

     

       134
       134
       +
       {{_, min_y}, {_, max_y}} = Enum.min_max_by(tiles, &elem(&1, 1))

     

       135
       135
       +
       ```

     

       136
       136
       +
       

     

       137
       137
       +
       ```elixir

     

       138
       138
       +
       h = max_y + min_y

     

       139
       139
       +
       w = max_x + min_x

     

       140
       140
       +
       ```

     

       141
       141
       +
       

     

       142
       142
       +
       ```elixir

     

       143
       143
       +
       {x, y} = hd(tiles)

     

       144
       144
       +
       

     

       145
       145
       +
       p1 = {:rect, 16055, 14805, 85282, 83613}

     

       146
       146
       +
       p2 = {:rect, 5741, 50285, 94619, 67351}

     

       147
       147
       +
       

     

       148
       148
       +
       svg = """

     

       149
       149
       +
       <svg xmlns="http://www.w3.org/2000/svg" width="500" viewBox="0 0 #{w} #{h}">

     

       150
       150
       +
         <rect width="100%" height="100%" fill="black" />

     

       151
       151
       +
         <path d="M#{x} #{y}#{

     

       152
       152
       +
           for {x, y} <- tl(tiles), do: "L#{x} #{y} "

     

       153
       153
       +
         } L#{x} #{y}" stroke="darkgreen" fill="green" stroke-width="200" />

     

       154
       154
       +
         #{Rect.to_svg(p1, stroke: :orange, fill: :transparent, "stroke-width": 200)}

     

       155
       155
       +
         #{Rect.to_svg(p2, stroke: :yellow, fill: :transparent, "stroke-width": 200)}

     

       156
       156
       +
         #{

     

       157
       157
       +
           for {x, y} <- tiles do

     

       158
       158
       +
             ~s(<rect x="#{x - 100}" y="#{y - 100}" width="200" height="200" fill="red" />)

     

       159
       159
       +
           end

     

       160
       160
       +
         }

     

       161
       161
       +
       </svg>

     

       162
       162
       +
       """

     

       163
       163
       +
       

     

       164
       164
       +
       Kino.Image.new(svg, :svg)

     

       165
       165
       +
       ```

     

       166
       166
       +
       

     

       167
       167
       +
       <!-- livebook:{"offset":3329,"stamp":{"token":"XCP.SSlM8wg30CucU7IP0n8MTbPIvnvvcZRXcglo9DY17kk0O0fwtLfUUiYJauWdspkXUlp0Axl5YscQNBKK5mSycPLd0iNdz8JFPfjCg4rS2pyM3JuQj73ipXd27t8Yd0ylig","version":2}} -->

+188

2025/day10.livemd

···

       1
       1
       +
       # Day 10

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc, {:dantzig, github: "hauleth/dantzig", ref: "use-proper-binary"}],

     

       5
       5
       +
       config: [

     

       6
       6
       +
         dantzig: [

     

       7
       7
       +
           highs_binary_path: System.find_executable("highs")

     

       8
       8
       +
         ]

     

       9
       9
       +
       ])

     

       10
       10
       +
       ```

     

       11
       11
       +
       

     

       12
       12
       +
       ## Section

     

       13
       13
       +
       

     

       14
       14
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMCIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI1In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       {:ok, puzzle_input} =

     

       18
       18
       +
         KinoAOC.download_puzzle("2025", "10", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       19
       19
       +
       ```

     

       20
       20
       +
       

     

       21
       21
       +
       ```elixir

     

       22
       22
       +
       defmodule Decoder do

     

       23
       23
       +
         def decode("[" <> pattern), do: do_lights(String.reverse(String.trim_trailing(pattern, "]")), 0)

     

       24
       24
       +
       

     

       25
       25
       +
         def decode("(" <> rest) do

     

       26
       26
       +
           <<seq::binary-size(byte_size(rest) - 1), ")">> = rest

     

       27
       27
       +
       

     

       28
       28
       +
           seq

     

       29
       29
       +
           |> String.split(",")

     

       30
       30
       +
           |> Enum.map(&String.to_integer/1)

     

       31
       31
       +
         end

     

       32
       32
       +
       

     

       33
       33
       +
         def decode("{" <> rest) do

     

       34
       34
       +
           <<seq::binary-size(byte_size(rest) - 1), "}">> = rest

     

       35
       35
       +
       

     

       36
       36
       +
           seq

     

       37
       37
       +
           |> String.split(",")

     

       38
       38
       +
           |> Enum.map(&String.to_integer/1)

     

       39
       39
       +
         end

     

       40
       40
       +
         

     

       41
       41
       +
         defp do_lights("", num), do: num

     

       42
       42
       +
         defp do_lights("." <> rest, num), do: do_lights(rest, 2 * num)

     

       43
       43
       +
         defp do_lights("#" <> rest, num), do: do_lights(rest, 2 * num + 1)

     

       44
       44
       +
       end

     

       45
       45
       +
       ```

     

       46
       46
       +
       

     

       47
       47
       +
       ```elixir

     

       48
       48
       +
       indicators =

     

       49
       49
       +
         puzzle_input

     

       50
       50
       +
         |> String.split("\n", trim: true)

     

       51
       51
       +
         |> Enum.map(fn raw ->

     

       52
       52
       +
           [lights | rest] =

     

       53
       53
       +
             raw

     

       54
       54
       +
             |> String.split()

     

       55
       55
       +
             |> Enum.map(&Decoder.decode/1)

     

       56
       56
       +
       

     

       57
       57
       +
           {buttons, [whatever]} = Enum.split(rest, -1)

     

       58
       58
       +
       

     

       59
       59
       +
           {lights, buttons, whatever}

     

       60
       60
       +
         end)

     

       61
       61
       +
       ```

     

       62
       62
       +
       

     

       63
       63
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       64
       64
       +
       

     

       65
       65
       +
       ## Part 1

     

       66
       66
       +
       

     

       67
       67
       +
       We are looking for such sequence of buttons that will provide pattern we are looking for. It can be solved by brute force with simple observation that buttons $a_n$ as well as light pattern $p$ can be represented by binary pattern. This allows us to use $\oplus$ (exclusive or, aka `XOR`) as an operation for pressing button.

     

       68
       68
       +
       

     

       69
       69
       +
       Thanks to that observation we can see, that order in which we press buttons doesn't matter, as $\oplus$ is reflexive, i.e.:

     

       70
       70
       +
       

     

       71
       71
       +
       $$

     

       72
       72
       +
       \begin{equation}

     

       73
       73
       +
       a \oplus b = b \oplus a

     

       74
       74
       +
       \end{equation}

     

       75
       75
       +
       $$

     

       76
       76
       +
       

     

       77
       77
       +
       Additionally, wrt. $\oplus$ we have identity element $0$ and inverse element is the same as an original element, i.e.

     

       78
       78
       +
       

     

       79
       79
       +
       $$

     

       80
       80
       +
       \begin{align}

     

       81
       81
       +
       a \oplus 0 = a \\

     

       82
       82
       +
       a \oplus a = 0

     

       83
       83
       +
       \end{align}

     

       84
       84
       +
       $$

     

       85
       85
       +
       

     

       86
       86
       +
       Additionally we can observe that:

     

       87
       87
       +
       

     

       88
       88
       +
       $$

     

       89
       89
       +
       \begin{equation}

     

       90
       90
       +
       (a \oplus b) \oplus c = a \oplus (b \oplus c)

     

       91
       91
       +
       \end{equation}

     

       92
       92
       +
       $$

     

       93
       93
       +
       

     

       94
       94
       +
       With that observation we can deduce that each button will be pressed at most once and the order in which we press buttons doesn't matter.

     

       95
       95
       +
       

     

       96
       96
       +
       ---

     

       97
       97
       +
       

     

       98
       98
       +
       So now we look for set $A = \{a_n\}$ of buttons that

     

       99
       99
       +
       

     

       100
       100
       +
       $$

     

       101
       101
       +
       A \in \mathcal{P}(\text{Buttons}) \\

     

       102
       102
       +
       \forall_{i, j} \; i \ne j \implies a_i \ne a_j \\

     

       103
       103
       +
       \bigoplus A = p

     

       104
       104
       +
       $$

     

       105
       105
       +
       

     

       106
       106
       +
       ```elixir

     

       107
       107
       +
       defmodule Comb do

     

       108
       108
       +
         def all_possible([]), do: [[]]

     

       109
       109
       +
         def all_possible([a | rest]) do

     

       110
       110
       +
           sub = all_possible(rest)

     

       111
       111
       +
       

     

       112
       112
       +
           sub ++ Enum.map(sub, &[a | &1])

     

       113
       113
       +
         end

     

       114
       114
       +
       end

     

       115
       115
       +
       ```

     

       116
       116
       +
       

     

       117
       117
       +
       ```elixir

     

       118
       118
       +
       indicators

     

       119
       119
       +
       |> Enum.sum_by(fn {p, a, _} ->

     

       120
       120
       +
         a

     

       121
       121
       +
         |> Enum.map(&Enum.sum_by(&1, fn p -> 2 ** p end))

     

       122
       122
       +
         |> Comb.all_possible()

     

       123
       123
       +
         |> Enum.sort_by(&length/1)

     

       124
       124
       +
         |> Enum.find(fn seq ->

     

       125
       125
       +
           r = Enum.reduce(seq, 0, &Bitwise.bxor/2)

     

       126
       126
       +
       

     

       127
       127
       +
           p == r

     

       128
       128
       +
         end)

     

       129
       129
       +
         |> length()

     

       130
       130
       +
       end)

     

       131
       131
       +
       ```

     

       132
       132
       +
       

     

       133
       133
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       134
       134
       +
       

     

       135
       135
       +
       ## Part 2

     

       136
       136
       +
       

     

       137
       137
       +
       ```elixir

     

       138
       138
       +
       defmodule Joltage do

     

       139
       139
       +
         alias Dantzig.Polynomial

     

       140
       140
       +
         alias Dantzig.Constraint

     

       141
       141
       +
         alias Dantzig.Problem

     

       142
       142
       +
       

     

       143
       143
       +
         def solve({_pat, buttons, goal}) do

     

       144
       144
       +
           p = Problem.new(direction: :minimize)

     

       145
       145
       +
       

     

       146
       146
       +
           {vars, {p, map}} =

     

       147
       147
       +
             buttons

     

       148
       148
       +
             |> Enum.with_index()

     

       149
       149
       +
             |> Enum.map_reduce({p, %{}}, fn {list, idx}, {p, acc} ->

     

       150
       150
       +
               {p, var} = Problem.new_variable(p, "v#{idx}", min: 0, type: :integer)

     

       151
       151
       +
       

     

       152
       152
       +
               acc =

     

       153
       153
       +
                 Enum.reduce(list, acc, fn key, map ->

     

       154
       154
       +
                   Map.update(map, key, [var], &[var | &1])

     

       155
       155
       +
                 end)

     

       156
       156
       +
       

     

       157
       157
       +
               {var, {p, acc}}

     

       158
       158
       +
             end)

     

       159
       159
       +
       

     

       160
       160
       +
           p =

     

       161
       161
       +
             map

     

       162
       162
       +
             |> Enum.sort()

     

       163
       163
       +
             |> Enum.map(&elem(&1, 1))

     

       164
       164
       +
             |> Enum.zip(goal)

     

       165
       165
       +
             |> Enum.reduce(p, fn {vars, target}, p ->

     

       166
       166
       +
               poly = Polynomial.sum(vars)

     

       167
       167
       +
               const = Constraint.new(poly, :==, target)

     

       168
       168
       +
       

     

       169
       169
       +
               Problem.add_constraint(p, const)

     

       170
       170
       +
             end)

     

       171
       171
       +
       

     

       172
       172
       +
           p = Problem.increment_objective(p, Polynomial.sum(vars))

     

       173
       173
       +
       

     

       174
       174
       +
           {:ok, s} = Dantzig.HiGHS.solve(p)

     

       175
       175
       +
       

     

       176
       176
       +
           Enum.sum_by(vars, &Dantzig.Solution.evaluate(s, &1))

     

       177
       177
       +
         end

     

       178
       178
       +
       end

     

       179
       179
       +
       ```

     

       180
       180
       +
       

     

       181
       181
       +
       ```elixir

     

       182
       182
       +
       indicators

     

       183
       183
       +
       |> Task.async_stream(&Joltage.solve/1, ordered: false)

     

       184
       184
       +
       |> Enum.sum_by(&elem(&1, 1))

     

       185
       185
       +
       |> trunc()

     

       186
       186
       +
       ```

     

       187
       187
       +
       

     

       188
       188
       +
       <!-- livebook:{"offset":4336,"stamp":{"token":"XCP.sfoBGIHkFvWbEHVrY-dL-QiEcwRz_ZCIjn3lQ0RFHActIOwEapmOPBt0ygbQAmrnEjYPlFm5KrcWx4LfIPbSznxxcea0fYORG9GbBBpRCm-tYbGXYTCGgqgTvOsifyWDNg","version":2}} -->

+85

2025/day11.livemd

···

       1
       1
       +
       # Day 11

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parse

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMSIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI1In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "11", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       graph =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n", trim: true)

     

       20
       20
       +
         |> Map.new(fn <<from::binary-3>> <> ": " <> rest ->

     

       21
       21
       +
           {from, String.split(rest)}

     

       22
       22
       +
         end)

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       ## Implementation

     

       26
       26
       +
       

     

       27
       27
       +
       ```elixir

     

       28
       28
       +
       defmodule Servers do

     

       29
       29
       +
         def paths(graph, from, to), do: paths(graph, from, to, [from])

     

       30
       30
       +
       

     

       31
       31
       +
         defp paths(_graph, to, to, acc), do: [Enum.reverse(acc)]

     

       32
       32
       +
       

     

       33
       33
       +
         defp paths(graph, from, to, acc) do

     

       34
       34
       +
           if next = graph[from] do

     

       35
       35
       +
             Stream.flat_map(next, &paths(graph, &1, to, [&1 | acc]))

     

       36
       36
       +
           else

     

       37
       37
       +
             []

     

       38
       38
       +
           end

     

       39
       39
       +
         end

     

       40
       40
       +
       

     

       41
       41
       +
         def paths_through(graph, from, to, required),

     

       42
       42
       +
           do: path_through(graph, from, to, MapSet.new(required), %{})

     

       43
       43
       +
       

     

       44
       44
       +
         defp path_through(_graph, to, to, required, memo),

     

       45
       45
       +
           do: {if(Enum.empty?(required), do: 1, else: 0), memo}

     

       46
       46
       +
       

     

       47
       47
       +
         defp path_through(graph, from, to, required, memo) do

     

       48
       48
       +
           state = MapSet.delete(required, from)

     

       49
       49
       +
       

     

       50
       50
       +
           with :error <- Map.fetch(memo, {from, state}),

     

       51
       51
       +
                {:ok, next} <- Map.fetch(graph, from) do

     

       52
       52
       +
             {sum, memo} =

     

       53
       53
       +
             Enum.reduce(next, {0, memo}, fn n, {sum, acc} ->

     

       54
       54
       +
               {c, next_acc} = path_through(graph, n, to, state, acc)

     

       55
       55
       +
       

     

       56
       56
       +
               {c + sum, next_acc}

     

       57
       57
       +
             end)

     

       58
       58
       +
       

     

       59
       59
       +
             {sum, Map.put(memo, {from, state}, sum)}

     

       60
       60
       +
           else

     

       61
       61
       +
             :error -> {0, memo}

     

       62
       62
       +
             {:ok, val} -> {val, memo}

     

       63
       63
       +
           end

     

       64
       64
       +
         end

     

       65
       65
       +
       end

     

       66
       66
       +
       ```

     

       67
       67
       +
       

     

       68
       68
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       69
       69
       +
       

     

       70
       70
       +
       ## Part 1

     

       71
       71
       +
       

     

       72
       72
       +
       ```elixir

     

       73
       73
       +
       Servers.paths(graph, "you", "out") |> Enum.count()

     

       74
       74
       +
       ```

     

       75
       75
       +
       

     

       76
       76
       +
       <!-- livebook:{"branch_parent_index":1} -->

     

       77
       77
       +
       

     

       78
       78
       +
       ## Part 2

     

       79
       79
       +
       

     

       80
       80
       +
       ```elixir

     

       81
       81
       +
       Servers.paths_through(graph, "svr", "out", ["dac", "fft"])

     

       82
       82
       +
       |> elem(0)

     

       83
       83
       +
       ```

     

       84
       84
       +
       

     

       85
       85
       +
       <!-- livebook:{"offset":1933,"stamp":{"token":"XCP.fzzPot48c9xb6ftw8IEb1V6uTX6csBICnoXjN1PU6c3DylXjP-bco9PgawAoc2GSeNJRzS3NCPmJ9aO9Jm2ehPXnam5fN-bZvUbEcxKmNA8SqH2_fJ5o_qp8rIaxpH6DRQ","version":2}} -->

+73

2025/day12.livemd

···

       1
       1
       +
       # Day 12

     

       2
       2
       +
       

     

       3
       3
       +
       ```elixir

     

       4
       4
       +
       Mix.install([:kino_aoc])

     

       5
       5
       +
       ```

     

       6
       6
       +
       

     

       7
       7
       +
       ## Parsing

     

       8
       8
       +
       

     

       9
       9
       +
       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMiIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI1In0","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->

     

       10
       10
       +
       

     

       11
       11
       +
       ```elixir

     

       12
       12
       +
       {:ok, puzzle_input} =

     

       13
       13
       +
         KinoAOC.download_puzzle("2025", "12", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))

     

       14
       14
       +
       ```

     

       15
       15
       +
       

     

       16
       16
       +
       ```elixir

     

       17
       17
       +
       {areas, boxes} =

     

       18
       18
       +
         puzzle_input

     

       19
       19
       +
         |> String.split("\n\n")

     

       20
       20
       +
         |> List.pop_at(-1)

     

       21
       21
       +
       ```

     

       22
       22
       +
       

     

       23
       23
       +
       ```elixir

     

       24
       24
       +
       areas =

     

       25
       25
       +
         areas

     

       26
       26
       +
         |> String.split("\n")

     

       27
       27
       +
         |> Enum.map(fn raw ->

     

       28
       28
       +
           [area | counts] = String.split(raw)

     

       29
       29
       +
       

     

       30
       30
       +
           area =

     

       31
       31
       +
             area

     

       32
       32
       +
             |> String.trim(":") 

     

       33
       33
       +
             |> String.split("x")

     

       34
       34
       +
             |> Enum.map(&String.to_integer/1)

     

       35
       35
       +
             |> Enum.product()

     

       36
       36
       +
       

     

       37
       37
       +
           counts = Enum.map(counts, &String.to_integer/1)

     

       38
       38
       +
       

     

       39
       39
       +
           {area, counts}

     

       40
       40
       +
         end)

     

       41
       41
       +
       ```

     

       42
       42
       +
       

     

       43
       43
       +
       ```elixir

     

       44
       44
       +
       boxes =

     

       45
       45
       +
         boxes

     

       46
       46
       +
         |> Enum.map(fn <<_::binary-3>> <> rest ->

     

       47
       47
       +
           rest

     

       48
       48
       +
           |> String.to_charlist()

     

       49
       49
       +
           |> Enum.count(&(&1 == ?#))

     

       50
       50
       +
         end)

     

       51
       51
       +
       ```

     

       52
       52
       +
       

     

       53
       53
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       54
       54
       +
       

     

       55
       55
       +
       ## Part 1

     

       56
       56
       +
       

     

       57
       57
       +
       ```elixir

     

       58
       58
       +
       areas

     

       59
       59
       +
       |> Enum.count(fn {max, counts} ->

     

       60
       60
       +
         counts

     

       61
       61
       +
         |> Enum.zip_with(boxes, &*/2)

     

       62
       62
       +
         |> Enum.sum()

     

       63
       63
       +
         |> then(& &1 <= max)

     

       64
       64
       +
       end)

     

       65
       65
       +
       ```

     

       66
       66
       +
       

     

       67
       67
       +
       <!-- livebook:{"branch_parent_index":0} -->

     

       68
       68
       +
       

     

       69
       69
       +
       ## Part 2

     

       70
       70
       +
       

     

       71
       71
       +
       FIN

     

       72
       72
       +
       

     

       73
       73
       +
       <!-- livebook:{"offset":1266,"stamp":{"token":"XCP.VAO97d30rTEs0AWIHkPD4J0fLm3S60tQ3fKoA-riReFbzMnqL1jIoxttGhvNSnCfZVNfeUBuSYVe6PrIshxVGBwjr3pjNHCyFLSb4iSPNh277lkMmh6Gtrlfr8dvsYvw0g","version":2}} -->

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