commit e85c74bf7a86beb2b6601bdd09dcbb74a7272585 · hauleth.dev/advent-of-code

+811
2024/day12.livemd
···

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

     

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       # Day 12

     

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       ```elixir

     

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       Mix.install([:kino_aoc, :range_set])

     

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       ```

     

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       ## Section

     

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       <!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxMiIsInNlc3Npb25fc2VjcmV0IjoiQURWRU5UX09GX0NPREVfU0VTU0lPTiIsInllYXIiOiIyMDI0In0","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", "12", 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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        "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" <> ...}

     

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       ```

     

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       ```elixir

     

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       map =

     

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         puzzle_input

     

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

     

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         |> Enum.with_index()

     

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         |> Enum.flat_map(fn {row, y} ->

     

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           row

     

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           |> String.split("", trim: true)

     

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           |> Enum.with_index()

     

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           |> Enum.map(fn {plant, x} -> {{x, y}, plant} end)

     

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         end)

     

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         |> Map.new()

     

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       ```

     

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

     

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       ```

     

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       %{

     

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         {18, 103} => "H",

     

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         {76, 13} => "F",

     

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         {61, 121} => "X",

     

       46
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         {112, 138} => "T",

     

       47
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         {37, 47} => "U",

     

       48
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         {65, 63} => "G",

     

       49
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         {77, 129} => "E",

     

       50
       50
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         {120, 47} => "L",

     

       51
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         {38, 2} => "T",

     

       52
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         {1, 26} => "J",

     

       53
       53
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         {116, 69} => "W",

     

       54
       54
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         {124, 56} => "O",

     

       55
       55
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         {83, 76} => "N",

     

       56
       56
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         {117, 125} => "Q",

     

       57
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       +
         {100, 134} => "W",

     

       58
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         {78, 139} => "D",

     

       59
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         {32, 15} => "O",

     

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         {103, 106} => "N",

     

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         {30, 113} => "J",

     

       62
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         {123, 104} => "W",

     

       63
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         {68, 134} => "Q",

     

       64
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         {124, 60} => "O",

     

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         {89, 14} => "R",

     

       66
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         {35, 30} => "E",

     

       67
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         {37, 53} => "H",

     

       68
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         {77, 130} => "E",

     

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         {2, 132} => "Q",

     

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         {4, 5} => "K",

     

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         {8, 50} => "X",

     

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         {78, 98} => "Y",

     

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         {101, 62} => "X",

     

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         {98, 136} => "W",

     

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         {95, 56} => "D",

     

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         {74, 12} => "F",

     

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         {17, 138} => "F",

     

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         {102, 74} => "S",

     

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         {11, 39} => "P",

     

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         {131, 5} => "I",

     

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         {65, 43} => "S",

     

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         {22, 38} => "R",

     

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         {14, 86} => "N",

     

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         {139, 46} => "U",

     

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         {12, 135} => "Q",

     

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         {65, 131} => "A",

     

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         {49, 117} => "O",

     

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         {20, 41} => "D",

     

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         {29, 25} => "G",

     

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         {86, 10} => "R",

     

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         {83, ...} => "I",

     

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         {...} => "G",

     

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         ...

     

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       }

     

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       ```

     

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       ```elixir

     

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       defmodule Garden do

     

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         def plots(map) do

     

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           map

     

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           |> Enum.group_by(&elem(&1, 1), &elem(&1, 0))

     

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           |> Enum.flat_map(fn {kind, pts} ->

     

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             for parcel <- parcels(MapSet.new(pts), []) do

     

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               {kind, parcel}

     

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             end

     

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           end)

     

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         end

     

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         def parcels(set, acc) do

     

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           case Enum.take(set, 1) do

     

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             [] ->

     

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               acc

     

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             [p] ->

     

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               {parcel, rest} = flood(p, MapSet.new(), set)

     

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               parcels(rest, [parcel | acc])

     

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           end

     

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         end

     

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         def flood({x, y} = curr, visited, potential) do

     

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           visited = MapSet.put(visited, curr)

     

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           potential = MapSet.delete(potential, curr)

     

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           for next <- [

     

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                 {x - 1, y},

     

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                 {x + 1, y},

     

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                 {x, y - 1},

     

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                 {x, y + 1}

     

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               ],

     

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               next in potential,

     

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               reduce: {visited, potential} do

     

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             {v, p} -> flood(next, v, p)

     

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           end

     

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         end

     

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         def as_int(false), do: 0

     

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         def as_int(true), do: 1

     

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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, Garden, <<70, 79, 82, 49, 0, 0, 15, ...>>, {:as_int, 1}}

     

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       ```

     

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       +
       

     

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       ```elixir

     

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       plots = Garden.plots(map)

     

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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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       [

     

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         {"A", MapSet.new([{131, 11}])},

     

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         {"A",

     

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          MapSet.new([

     

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            {54, 38},

     

       160
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       +
            {54, 39},

     

       161
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       +
            {55, 38},

     

       162
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       +
            {56, 36},

     

       163
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       +
            {56, 37},

     

       164
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       +
            {56, 38},

     

       165
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       +
            {57, 37},

     

       166
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       +
            {57, 38},

     

       167
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            {57, 39},

     

       168
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       +
            {57, 40},

     

       169
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       +
            {58, 36},

     

       170
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       +
            {58, 37},

     

       171
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       +
            {58, 38},

     

       172
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       +
            {58, 39},

     

       173
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       +
            {58, 40},

     

       174
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       +
            {59, 36},

     

       175
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       +
            {59, 37},

     

       176
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       +
            {59, 38},

     

       177
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       +
            {60, 36},

     

       178
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       +
            {60, 37},

     

       179
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       +
            {60, 38},

     

       180
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       +
            {61, 36},

     

       181
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       +
            {61, 37},

     

       182
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       +
            {61, 38},

     

       183
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       +
            {62, 38},

     

       184
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       +
            {63, 38}

     

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       +
          ])},

     

       186
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         {"A", MapSet.new([{18, 56}])},

     

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         {"A",

     

       188
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       +
          MapSet.new([

     

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       +
            {93, 86},

     

       190
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       +
            {94, 86},

     

       191
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       +
            {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
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       +
          ])},

     

       214
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       +
         {"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}} -->