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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Entropy-Narcissist/Elixir/entropy-narcissist.elixir Normal file
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File.open(__ENV__.file, [:read], fn(file) ->
text = IO.read(file, :all)
leng = String.length(text)
String.codepoints(text)
|> Enum.group_by(&(&1))
|> Enum.map(fn{_,value} -> length(value) end)
|> Enum.reduce(0, fn count, entropy ->
freq = count / leng
entropy - freq * :math.log2(freq)
end)
|> IO.puts
end)