29 lines
719 B
Elixir
29 lines
719 B
Elixir
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{:ok, content} = File.read("input-2")
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content = content
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|> String.split("\n", trim: true)
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|> Enum.map(fn n -> String.graphemes(n) end)
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count2 = 0
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count3 = 0
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for line <- content do
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Enum.reduce(line, %{}, fn char, acc ->
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Map.put(acc, char, (acc[char] || 0)+ 1)
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end)
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|> Map.values
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|> Enum.filter(fn x -> x == 2 || x == 3 end)
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# need to split and count occurance of 2 and 3 seperately
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|> Enum.reduce(0, fn x, acc -> if x == 2 do acc + 1 end end)
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end
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|> IO.inspect
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IO.puts(count2)
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IO.puts(count3)
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# File.stream!("input-2")
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# |> Stream.map(&String.trim/1)
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# |> Stream.map(fn n -> String.graphemes(n) end)
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# |> Enum.reduce(%{}, fn char, acc ->
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# Map.update(acc, char, 1, &(&1 + 1))
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# end)
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# |> IO.puts
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