So what you are saying (roughly) is that the branch takes O(n) time (it's tested n times) to save you O(log n) work on a task which would otherwise be O(n)?

With branch: O(n) - O(log n), still O(n)

No branch: O(n) - O(n) + O(log n), still O(n).

In the long run, branch or no branch, the time is still dominated by n calls to the random function.

In reply to RE: RE (tilly) 3: Fisher-Yates Shuffle by BlaisePascal
in thread Fisher-Yates Shuffle by Adam

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