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Use String.to_charlist/1

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Adam Millerchip 2020-12-06 15:47:14 +09:00
parent 45292967af
commit d11d007be9
2 changed files with 5 additions and 5 deletions
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4
day6/day6part1.exs
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@ -5,9 +5,9 @@ defmodule Day6Part1 do
|> Stream.map(fn group ->
group
|> Enum.join()
|> String.split("", trim: true)
|> String.to_charlist()
|> Enum.frequencies()
|> Map.delete("\n")
|> Map.delete(?\n)
|> Enum.count()
end)
|> Enum.sum()

6
day6/day6part2.exs
View file

@ -3,11 +3,11 @@ defmodule Day6Part2 do
File.stream!("input")
|> Stream.chunk_by(&(&1 == "\n"))
|> Stream.map(fn group ->
frequencies = group |> Enum.join() |> String.split("", trim: true) |> Enum.frequencies()
frequencies = group |> Enum.join() |> String.to_charlist() |> Enum.frequencies()
count = frequencies["\n"]
count = frequencies[?\n]
Map.delete(frequencies, "\n")
Map.delete(frequencies, ?\n)
|> Enum.count(fn {_, v} -> v == count end)
end)
|> Enum.sum()