25 lines
440 B
Elixir
25 lines
440 B
Elixir
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defmodule AOC.Day1 do
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use AOC.Day, day: 1
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def parse_input(lines) do
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lines
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|> Enum.chunk_by(&(&1 == ""))
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|> Enum.reject(&(&1 == [""]))
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|> Enum.map(fn l -> Enum.map(l, &String.to_integer/1) end)
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end
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def part1(input) do
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input
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|> Enum.map(&Enum.sum/1)
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|> Enum.max()
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end
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def part2(input) do
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input
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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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end
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end
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