2020-12-06 06:04:15 +00:00
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defmodule Day6Part1 do
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def run do
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2020-12-06 06:45:22 +00:00
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File.stream!("input")
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|> Stream.chunk_by(&(&1 == "\n"))
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2020-12-06 06:04:15 +00:00
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|> Stream.map(fn group ->
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group
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2020-12-06 06:45:22 +00:00
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|> Enum.join()
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2020-12-06 06:47:14 +00:00
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|> String.to_charlist()
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2020-12-06 06:04:15 +00:00
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|> Enum.frequencies()
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2020-12-06 06:47:14 +00:00
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|> Map.delete(?\n)
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2020-12-06 06:04:15 +00:00
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|> Enum.count()
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end)
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|> Enum.sum()
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|> IO.puts()
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end
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end
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Day6Part1.run()
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