24 lines
467 B
Elixir
24 lines
467 B
Elixir
defmodule AoC.Util.String do
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@doc """
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Transposes the string when it represents
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a grid of newline separated rows where each
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character is a new column.
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iex> AoC.Util.String.transpose(
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iex> ~s(abc
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iex>def
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iex>ghi)
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iex>)
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~s(adg
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beh
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cfi)
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"""
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def transpose(str) do
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AoC.Util.Enum.transpose(
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str
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|> String.split("\n")
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|> Enum.map(&String.graphemes(&1))
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)|> Enum.map(&Enum.join(&1,"")) |> Enum.join("\n")
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end
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end
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