32 lines
682 B
Nix
32 lines
682 B
Nix
{ pkgs, lib, ... }:
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with lib;
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let
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elves = pipe (builtins.readFile ./input.txt) [
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(splitString "\n\n")
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(map (splitString "\n"))
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(map (map toInt))
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(map (fold add 0))
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];
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answer1 = toString (fold max (-1) elves);
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max3 = abc: x: if x >= abc.a then { a = x; b = abc.a; c = abc.b; } else
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if x >= abc.b then { a = abc.a; b = x; c = abc.b; } else
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if x >= abc.c then { inherit (abc) a b; c = x; } else
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abc;
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answer2 = pipe elves [
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(foldl max3 { a = -1; b = -1; c = -1; })
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(abc: abc.a + abc.b + abc.c)
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toString
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];
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in pkgs.writeText "answers" ''
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Task1:
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${answer1}
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Task2:
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${answer2}
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'' |