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Longest common prefix: Difference between revisions
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end
defp lcp( []), do: []
defp lcp(strs), do: Enum.reduce(strs, &lcp/2)
defp lcp(xs, ys), do: lcp(xs, ys, [])
defp lcp([x | xs], [x | ys], pre), do: lcp(xs, ys, [x
defp lcp( _, _, pre), do: Enum.reverse(pre)
end
</lang>
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