25 lines
426 B
Elixir
25 lines
426 B
Elixir
defmodule Day1Part1 do
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def run do
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{a, b} =
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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_integer/1)
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|> find_2020()
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IO.puts("#{a} x #{b} = #{a * b}")
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end
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def find_2020([current | rest]) do
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target = 2020 - current
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if Enum.member?(rest, target) do
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{current, target}
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else
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find_2020(rest)
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end
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end
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end
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Day1Part1.run()
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