23 lines
503 B
Elixir
23 lines
503 B
Elixir
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defmodule Day3Part1 do
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def run do
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{x, y, trees} =
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File.read!("input")
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|> String.trim()
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|> String.split("\n")
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|> Enum.map(&String.to_charlist/1)
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|> Enum.reduce({0, 0, 0}, fn row, {x, y, trees} ->
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trees =
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case Stream.cycle(row) |> Enum.at(x) do
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?# -> trees + 1
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?. -> trees
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end
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{x + 3, y + 1, trees}
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end)
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IO.puts("Travelled (#{x}, #{y}) and encountereed #{trees} trees")
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end
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end
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Day3Part1.run()
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