9 lines
246 B
Elixir
9 lines
246 B
Elixir
Enum.reduce(0..6, '0', fn _,s ->
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IO.puts s
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s ++ Enum.map(s, fn c -> if c==?0, do: ?1, else: ?0 end)
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end)
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# or
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Stream.iterate('0', fn s -> s ++ Enum.map(s, fn c -> if c==?0, do: ?1, else: ?0 end) end)
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|> Enum.take(7)
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|> Enum.each(&IO.puts/1)
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