11 lines
272 B
Elixir
11 lines
272 B
Elixir
defmodule Self_describing do
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def number(n) do
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digits = Integer.digits(n)
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Enum.map(0..length(digits)-1, fn s ->
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length(Enum.filter(digits, fn c -> c==s end))
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end) == digits
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end
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end
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m = 3300000
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Enum.filter(0..m, fn n -> Self_describing.number(n) end)
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