commit af9efa11b253f0ba6cd71e165e11e89b7bddc746 · hauleth.dev/advent-of-code

+11 -62

2022/day01.livemd

···

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         puzzle_input

     

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         |> String.split("\n")

     

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         |> Enum.chunk_while(

     

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           [],

     

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           0,

     

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           fn

     

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             "", acc -> {:cont, Enum.reverse(acc), []}

     

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             val, acc -> {:cont, [String.to_integer(val) | acc]}

     

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             "", acc -> {:cont, acc, 0}

     

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             val, acc -> {:cont, String.to_integer(val) + acc}

     

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           end,

     

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           fn

     

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             [] -> {:cont, []}

     

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             acc -> {:cont, Enum.reverse(acc), []}

     

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             0 -> {:cont, 0}

     

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             acc -> {:cont, acc, 0}

     

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           end

     

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         )

     

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         |> Enum.sort(:desc)

     

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       ```

     

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

     

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       ```

     

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       [

     

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         [5800, 2273, 1315, 5801, 6352, 2649, 4140, 2115, 5298, 4441, 4428, 3773, 1076],

     

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         [8063, 10386, 5705, 8397, 1084, 7661],

     

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         [3661, 5756, 3231, 5162, 4930, 4675, 1113, 6795, 6415, 1144, 2900, 5147, 2966],

     

       57
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         [35187],

     

       58
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         [12434, 2038, 12435, 8757, 6976, 4532],

     

       59
       59
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         [4642, 4431, 5126, 4672, 1724, 3012],

     

       60
       60
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         [3801, 6564, 5401, 3913, 3090, 1484, 6227, 1283, 2501, 4601, 5860, 7036],

     

       61
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         [19257, 31867],

     

       62
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         [4292, 4518, 1298, 13147, 7463],

     

       63
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         [6784, 1065, 4015, 3154, 6429, 5067, 6535, 5731, 1270, 5870, 4934, 2800],

     

       64
       64
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         [5227, 6294, 6733, 5177, 2773, 6553, 3219, 1446, 7005, 6036, 6872],

     

       65
       65
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         [1721, 4408, 5577, 2799, 2257, 3149, 2389, 3713, 5588, 2324, 4595, 6018, 4926],

     

       66
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         [1233, 4799, 3380, 1975, 1924, 1578, 2338, 1546, 3708, 4020, 5872, 2519, 5334, 4416],

     

       67
       67
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         [18103, 1692, 10497, 6786],

     

       68
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         [4837, 12315, 6510, 9221, 10023, 5698],

     

       69
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         [9781, 18818, 19784, 5100],

     

       70
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         [7596, 14668, 18708],

     

       71
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         [1932, 18024, 6361],

     

       72
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         [7302, 5163, 9039, 4774, 8726, 6538, 2054, 7238, 4233],

     

       73
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         [3375, 6049, 4925, 7129, 6075, 1262, 3836, 5878, 3292, 1316, 3924, 3530],

     

       74
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         [8653, 21172, 18837],

     

       75
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         [8052, 1672, 2962, 3270, 8160, 3033, 2004, 7774, 8182, 3047],

     

       76
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         [7917, 2458, 1040, 7210, 7742, 4296, 2861, 9324, 5721],

     

       77
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         [17851, 11236, 7107],

     

       78
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         [6962, 4498, 10042, 4539, 10759, 8378, 5781],

     

       79
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         [7156, 10063, 5329, 2449, 4749, 6498, 6493, 1924],

     

       80
       80
       -
         [2161, 1309, 1770, 3195, 1581, 1194, 1455, 1350, 5298, 5290, 1872, 2155, 3060, 1514, 1872],

     

       81
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         [9664, 14392, 10201, 12693, 8817],

     

       82
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         [4960, 2281, 6321, 4953, 1439, 1372, 5253, 2338, 2516, 6332, 2760, 6702, 2354],

     

       83
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         [1341, 1489, 7110, 2267, 6809, 4198, 1137, 2526, 2087, 3885, 4952, 3056],

     

       84
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         [6561, 1313, 6624],

     

       85
       85
       -
         [11571, 3452, 15300, 1518, 14811],

     

       86
       86
       -
         [3421, 5270, 1676, 6712, 6231, 6617, 6775, 5428, 3497, 5598, 3723],

     

       87
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         [7879, 7984, 2678, 5770, 4217, 5323, 3708, 2799, 5466],

     

       88
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         [2895, 3934, 4468, 6864, 4531, 5622, 3281, 6518, 4313, 5273, 3945, 5378, 2585],

     

       89
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         [3486, 6101, 1036, 1079, 3380, 4542, 3617, 4279, 2397, 2172, 3711, 6251, 1219, 6320],

     

       90
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         [6785, 4840, 4314, 3647, 4660, 5968, 1932, 3144, 2131, 6556, 5107, 2018, 4441],

     

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         [2958, 2812, 1812, 4047, 4055, 11311, 7254],

     

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         [2563, 1559, 6369, 4595, 3617, 1979, 1988, 1648, 2520, 5216, 6227, ...],

     

       93
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         [4417, 5913, 2444, 6808, 4742, 2422, 5153, 6707, 6968, 6663, ...],

     

       94
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         [9949, 19801, 14001, 15160],

     

       95
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         [1166, 12942, 15632, 3266, 16053],

     

       96
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         [7820, 7480, 1377, 4492, 5371, 1411, 2455, ...],

     

       97
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         [17669, 8092],

     

       98
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         [8706, 7270, 2362, 3278, 7920, ...],

     

       99
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         [1300, 5806, 9993, 5891, ...],

     

       100
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         [6375, 2494, 2291, ...],

     

       101
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         [6224, 1559, ...],

     

       102
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         [16526, ...],

     

       103
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         [...],

     

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         ...

     

       105
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       ]

     

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       [66616, 66306, 66250, 65758, 65264, 65080, 64911, 64448, 64423, 64338, 63797, 63599, 62203, 61850,

     

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        61072, 60910, 60591, 60292, 60152, 59794, 59607, 59403, 59135, 59074, 58989, 58949, 58911, 58736,

     

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        58665, 58474, 58406, 57457, 57335, 56727, 56537, 56224, 56117, 56096, 55767, 55585, 55543, 55409,

     

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        55193, 55067, 54988, 54977, 54948, 54820, 54813, 54680, ...]

     

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       ```

     

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       ## Task 1

     

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       ```elixir

     

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       elves

     

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       |> Enum.map(&Enum.sum/1)

     

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       |> Enum.max()

     

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       |> List.first()

     

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       ```

     

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

     
···

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       ```elixir

     

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       elves

     

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       |> Enum.map(&Enum.sum/1)

     

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       |> Enum.sort(:desc)

     

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       |> Enum.take(3)

     

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       |> Enum.sum()

     

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       ```

+117

2022/day02.livemd

···

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       <!-- livebook:{"persist_outputs":true} -->

     

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       # Day 02

     

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       ```elixir

     

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       Mix.install([

     

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         {:kino_aoc, git: "https://github.com/ljgago/kino_aoc"}

     

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       ])

     

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       ```

     

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

     

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       ```

     

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       :ok

     

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       ```

     

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       ## Section

     

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       <!-- livebook:{"attrs":{"day":"2","session_secret":"ADVENT_OF_CODE_SESSION","variable":"puzzle_input","year":"2022"},"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("2022", "2", 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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        "C Z\nC Y\nB X\nA Z\nC Z\nB X\nC Z\nB Z\nA Z\nA Z\nB Z\nB X\nC Z\nC Z\nA Z\nB Y\nB X\nC Y\nB X\nB X\nA Y\nA Z\nA Z\nA Z\nA Z\nC Z\nA Z\nC Z\nB X\nA X\nA Z\nB Y\nB X\nA Z\nB X\nC Z\nA Z\nC Z\nA Z\nA Z\nB X\nC X\nB X\nA X\nB X\nA Z\nA Z\nB X\nB Y\nB Y\nB Y\nC Z\nA Z\nA Z\nC X\nB X\nC Y\nB X\nC Z\nA Z\nC Z\nB X\nB X\nB Z\nB X\nA Z\nC Z\nA Z\nA Z\nA Z\nA Z\nB X\nC Z\nC Y\nA Z\nA Z\nA Z\nA Z\nC Z\nA X\nA Z\nA Z\nC Z\nC Y\nA Z\nC Y\nA Z\nA Z\nC Y\nC Z\nC Z\nA Z\nB Y\nB X\nB Y\nC Z\nA Z\nA Z\nA Z\nB Z\nC Z\nA Z\nB X\nC Y\nA Z\nB X\nA Z\nB Z\nA Z\nB X\nA Z\nB Y\nA Z\nA Z\nC Y\nA Z\nB Z\nA Z\nA Y\nB Y\nC Z\nA Z\nB X\nC Z\nC Z\nB X\nC Z\nC Z\nA Z\nB X\nC Z\nC Z\nA Z\nC Y\nA Z\nA Z\nB Y\nC Y\nA Z\nB X\nB Y\nB X\nB X\nA Z\nC Y\nA Z\nC Y\nA Z\nB Y\nC Z\nA Z\nA Z\nC Y\nA Z\nA Z\nC Z\nA Z\nA Z\nA Z\nC Y\nA Z\nB X\nC Z\nA Z\nC Z\nB Z\nC Z\nA Z\nC Y\nB X\nC Z\nC Z\nA Z\nC Y\nA Z\nB Y\nB X\nA Z\nC Y\nC Z\nB X\nC X\nB X\nC Y\nB X\nB X\nC Z\nB X\nA Z\nC X\nA Z\nC Z\nB X\nC Y\nA Z\nA Z\nC Z\nC Y\nA Z\nA Z\nA Z\nB X\nA Y\nB X\nC X\nC Z\nB X\nC Z\nC X\nA Z\nC Z\nB Z\nA X\nA Z\nC Y\nA Z\nC Z\nC Z\nB X\nC Z\nA X\nC Y\nC Z\nC Z\nC Z\nB Y\nC X\nB X\nA Z\nB Y\nA Z\nA Z\nC Y\nA Z\nB X\nA Y\nA Y\nC Y\nA Z\nA Z\nC Z\nA Z\nA Z\nA Z\nB Y\nB X\nB X\nA Z\nC X\nC Y\nA Z\nC Z\nA Z\nA Z\nA Z\nA Z\nA X\nA Z\nC Z\nA Z\nB Y\nA Y\nA Y\nC Y\nC Y\nB X\nB Y\nA Z\nA Z\nC X\nA Z\nB X\nC Y\nA Y\nA Y\nA Z\nC Y\nC Z\nB X\nA Z\nC Y\nB X\nC Z\nA Z\nB X\nA Z\nC Y\nB X\nC Z\nA Z\nA Z\nA Y\nA Z\nA Z\nC Y\nC Z\nA Z\nB X\nC Z\nC Y\nA Z\nA Z\nC Y\nA Z\nC Z\nB X\nA Z\nC Z\nA Z\nA Z\nA Z\nC Y\nC Y\nB X\nB Z\nB X\nA Z\nB Y\nB Y\nA Z\nA Z\nA Z\nB Y\nB Y\nC Y\nA Y\nA Z\nC X\nB X\nA Y\nB Y\nC Y\nA Z\nB Z\nC Y\nC Z\nB X\nA Z\nA X\nB X\nC Y\nB Z\nA Z\nB Y\nA Z\nB X\nA Z\nB X\nA Z\nC X\nC Y\nC Z\nB X\nC Z\nC Y\nA Z\nC X\nC Z\nA Z\nC Y\nA Y\nC Y\nC Y\nB Y\nA Z\nA Z\nA Y\nA Z\nC Z\nB X\nA Y\nB X\nB Y\nB X\nA Z\nC Z\nC Z\nC Y\nB X\nC Z\nA X\nA Z\nA Z\nA Y\nA Z\nA Z\nA Z\nA Z\nB Z\nB X\nB X\nC Y\nC Z\nC Z\nA Y\nB X\nC Z\nC X\nC Z\nB Y\nA Z\nB X\nB Y\nB X\nA Z\nB X\nB X\nA Z\nA Z\nC X\nB X\nC Z\nC X\nA Z\nA X\nC Z\nA Z\nA Z\nC Z\nB Z\nC Z\nB X\nA Z\nA Z\nC Z\nA Y\nA Z\nA Z\nC Y\nA Z\nB X\nB Y\nA Z\nA Y\nA X\nB X\nA Z\nA Z\nC Y\nC Y\nA Z\nC X\nA Z\nA Y\nA Z\nB Y\nA Z\nA Y\nB X\nC Z\nA Z\nB X\nA Z\nA Z\nB X\nA Z\nA Z\nB X\nA Z\nC Y\nA Z\nC Z\nC Y\nB Y\nB X\nA Z\nB Y\nA Z\nA Z\nB X\nA Z\nA Z\nB X\nC Z\nA Z\nC Z\nB X\nB X\nB Y\nA Y\nC Y\nB X\nA Z\nC Z\nA Z\nA Z\nA Z\nB X\nA Z\nB X\nA Z\nA Z\nA Z\nC Z\nA X\nB X\nB Z\nA Z\nA Z\nC Z\nA Z\nA Z\nA Z\nB Y\nA Y\nC Z\nB X\nB X\nC Y\nA Y\nA Z\nC X\nB Z\nA Z\nA Z\nC Z\nA Z\nA Y\nB Y\nC Z\nB X\nA Z\nA Z\nA Z\nC Z\nA Z\nA Y\nB X\nC Y\nA Z\nA Z\nA Z\nC X\nB X\nA Z\nA Z\nC Z\nB X\nA Z\nA Z\nA Z\nA Z\nA Z\nA Z\nC Y\nA Z\nB X\nA Y\nC Y\nA Z\nA Z\nB X\nA Z\nB Y\nA Y\nB X\nA X\nA Z\nC Z\nC Z\nC Y\nA Z\nB Y\nA Z\nC X\nA Z\nA Z\nB X\nA Z\nA Z\nB Y\nA Y\nA Z\nA Z\nB X\nC Y\nB X\nB Y\nC Y\nC X\nA Z\nA Z\nB Y\nA Z\nB Y\nC Y\nC Y\nA Z\nC Y\nA Z\nC Z\nA Z\nB X\nA Z\nA Z\nA X\nA Z\nA Z\nA Z\nA Z\nB Z\nC X\nB Y\nA Z\nC Z\nA Z\nA Z\nA Z\nC Z\nB X\nA Z\nB X\nC Y\nC Z\nA Z\nA Z\nC Z\nB X\nB X\nA Z\nA Z\nB X\nA Z\nA Z\nC Z\nA Z\nA Z\nA X\nC Z\nC Y\nA Z\nA Z\nA Z\nA Z\nC Z\nA Z\nA Z\nB Z\nA Z\nC Y\nA Z\nA Z\nB Y\nA Z\nA Z\nB X\nA Z\nB X\nA Z\nA Z\nC Y\nA Y\nC Y\nB Z\nB X\nB Y\nA Z\nA Z\nC Y\nA Z\nA Y\nB Z\nA Z\nC Y\nA Z\nA Z\nA X\nA Z\nB Y\nB Y\nA Z\nA Z\nA Z\nC Z\nC Z\nA Y\nC Y\nB X\nA Y\nB X\nB Y\nC X\nC Y\nC Y\nA Z\nC Z\nA Z\nA Z\nA Z\nB X\nA Z\nA Z\nA Z\nA Z\nA Y\nB X\nA Z\nA Z\nB X\nA Z\nA Z\nA Z\nA Z\nA X\nC Y\nB X\nA Z\nA Y\nC Y\nC Y\nA X\nA Z\nC X\nC Z\nA Z\nC X\nA Z\nA Z\nB Y\nA Z\nA Z\nA Z\nB X\nA Z\nA Z\nB X\nB X\nA Z\nA Z\nC Z\nC Z\nA Z\nC Z\nB X\nA Z\nA Z\nB X\nC Z\nC Z\nC Y\nC Z\nA Z\nB X\nA X\nC Z\nA X\nC Z\nA Z\nA Z\nA Z\nA Z\nA Z\nB X\nA Z\nB X\nC Y\nA Z\nA Z\nA Z\nC Z\nA Y\nA Y\nB Y\nA Z\nA Z\nC Y\nC Z\nB X\nB X\nA X\nC Z\nB X\nA Z\nA Z\nA Z\nB Z\nA Z\nC Y\nB X\nA Z\nA Z\nA Y\nB Y\nC Z\nC Z\nA Z\nA Z\nA Z\nB Y\nA Z\nC Y\nB X\nB Z\nC X\nB X\nC Y\nA X\nC Z\nA Z\nB X\nC X\nA Y\nC X\nA Z\nB X\nB X\nA Z\nA Z\nC Z\nB X\nB Z\nC Y\nC Z\nA Z\nB Y\nA Z\nA Z\nB X\nC Y\nA Z\nC Z\nA Z\nB Z\nC Z\nC Z\nA Z\nC Y\nA Z\nA Z\nA Z\nC Z\nC X\nB Y\nC Y\nA Z\nC Y\nC Y\nC X\nC Y\nA Z\nC Y\nC Y\nC X\nC X\nA Z\nB X\nA Z\nC Y\nA Z\nB X\nB X\nB X\nB X\nB X\nB Y\nA Z\nA Z\nC Z\nA Z\nA Z\nA Z\nC Z\nC Z\nC Z\nA Z\nA Z\nA Y\nA Z\nA Z\nA Y\nA X\nC Z\nA Z\nA Z\nC Z\nB X\nC Z\nB Y\nC Z\nA Y\nA Z\nC Y\nB X\nA Z\nC Y\nA Z\nC Z\nC Y\nB X\nA Z\nA Z\nA Z\nA Z\nA Z\nC X\nC Z\nA Z\nA Z\nA Z\nC Z\nA Z\nB X\nA Z\nA X\nA Z\nB X\nA Z\nC Z\nA Z\nA Y\nB X\nB Z\nA Z\nB X\nA Z\nA Z\nB Y\nA Z\nA Z\nC Y\nB Y\nC X\nA Z\nA Z\nA Z\nC Z\nA Z\nA Z\nA Z\nC Z\nA Z\nC Y\nB X\nA Z\nA Z\nC X\nA Z\nC Z\nA Z\nB Y\nA Z\nA Y\nC Z\nC Z\nA Y\nA Y\nA Z\nA X\nA Z\nA Z\nB X\nA Z\nA Z\nB X\nC Z\nA Z\nA Y\nB X\nA Z\nA Z\nC Z\nA Z\nA Z\nB X\nB Z\nA Z\nA X\nB Y\nA Z\nB X\nA Z\nC Z\nB X\nC Y\nA Z\nB X\nA Z\nA Z\nA Z\nB Z\nA Z\nC Z\nA Z\nC Z\nB X\nA Z\nB Z\nA Z\nC Z\nC Z\nB Y\nC Z\nA Z\nA Z\nC Y\nA Z\nA Z\nB X\nB Y\nC Z\nA Z\nC Z\nA Z\nC Z\nA Z\nB X\nA X\nB Y\nA Z\nC Z\nA Z\nC Z\nC Y\nB X\nC Z\nC Z\nB Y\nB X\nC Z\nB X\nC Y\nA Z\nC Y\nC Y\n" <> ...}

     

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       ```

     

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       +
       

     

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       +
       ```elixir

     

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       +
       translate = %{"A" => :rock, "B" => :paper, "C" => :scissors}

     

       35
       35
       +
       points = %{rock: 1, paper: 2, scissors: 3}

     

       36
       36
       +
       

     

       37
       37
       +
       defmodule Day02 do

     

       38
       38
       +
         @wins %{paper: :rock, rock: :scissors, scissors: :paper}

     

       39
       39
       +
       

     

       40
       40
       +
         def score(a, a), do: 3

     

       41
       41
       +
         def score(a, b) when :erlang.map_get(a, @wins) == b, do: 6

     

       42
       42
       +
         def score(_, _), do: 0

     

       43
       43
       +
       

     

       44
       44
       +
         for {a, b} <- @wins do

     

       45
       45
       +
           def wins_with(unquote(a)), do: unquote(b)

     

       46
       46
       +
           def loses_to(unquote(b)), do: unquote(a)

     

       47
       47
       +
         end

     

       48
       48
       +
       end

     

       49
       49
       +
       

     

       50
       50
       +
       freqs =

     

       51
       51
       +
         puzzle_input

     

       52
       52
       +
         |> String.split("\n", trim: true)

     

       53
       53
       +
         |> Enum.map(fn <<a, ?\s, b>> -> {translate[<<a>>], <<b>>} end)

     

       54
       54
       +
         |> Enum.frequencies()

     

       55
       55
       +
       ```

     

       56
       56
       +
       

     

       57
       57
       +
       <!-- livebook:{"output":true} -->

     

       58
       58
       +
       

     

       59
       59
       +
       ```

     

       60
       60
       +
       %{

     

       61
       61
       +
         {:paper, "X"} => 395,

     

       62
       62
       +
         {:paper, "Y"} => 146,

     

       63
       63
       +
         {:paper, "Z"} => 65,

     

       64
       64
       +
         {:rock, "X"} => 77,

     

       65
       65
       +
         {:rock, "Y"} => 113,

     

       66
       66
       +
         {:rock, "Z"} => 1011,

     

       67
       67
       +
         {:scissors, "X"} => 96,

     

       68
       68
       +
         {:scissors, "Y"} => 242,

     

       69
       69
       +
         {:scissors, "Z"} => 355

     

       70
       70
       +
       }

     

       71
       71
       +
       ```

     

       72
       72
       +
       

     

       73
       73
       +
       ## Task 1

     

       74
       74
       +
       

     

       75
       75
       +
       I really dislike this task, because description of the task suggested that the goal is to find best strategy that do not win all rounds. Instead it is supposed to play strategy using **exact** steps defined in the example.

     

       76
       76
       +
       

     

       77
       77
       +
       Very poor wording.

     

       78
       78
       +
       

     

       79
       79
       +
       ```elixir

     

       80
       80
       +
       strategy = %{"Y" => :paper, "X" => :rock, "Z" => :scissors}

     

       81
       81
       +
       

     

       82
       82
       +
       freqs

     

       83
       83
       +
       |> Enum.reduce(0, fn {{b, c}, v}, acc ->

     

       84
       84
       +
         choice = strategy[c]

     

       85
       85
       +
         result = Day02.score(choice, b)

     

       86
       86
       +
         acc + v * (points[choice] + result)

     

       87
       87
       +
       end)

     

       88
       88
       +
       ```

     

       89
       89
       +
       

     

       90
       90
       +
       <!-- livebook:{"output":true} -->

     

       91
       91
       +
       

     

       92
       92
       +
       ```

     

       93
       93
       +
       9241

     

       94
       94
       +
       ```

     

       95
       95
       +
       

     

       96
       96
       +
       ## Task 2

     

       97
       97
       +
       

     

       98
       98
       +
       ```elixir

     

       99
       99
       +
       freqs

     

       100
       100
       +
       |> Enum.reduce(0, fn {{b, strategy}, v}, acc ->

     

       101
       101
       +
         choice =

     

       102
       102
       +
           case strategy do

     

       103
       103
       +
             "X" -> Day02.wins_with(b)

     

       104
       104
       +
             "Y" -> b

     

       105
       105
       +
             "Z" -> Day02.loses_to(b)

     

       106
       106
       +
           end

     

       107
       107
       +
       

     

       108
       108
       +
         result = Day02.score(choice, b)

     

       109
       109
       +
         acc + v * (points[choice] + result)

     

       110
       110
       +
       end)

     

       111
       111
       +
       ```

     

       112
       112
       +
       

     

       113
       113
       +
       <!-- livebook:{"output":true} -->

     

       114
       114
       +
       

     

       115
       115
       +
       ```

     

       116
       116
       +
       14610

     

       117
       117
       +
       ```