+2  A: 

Um, quicksort?

Here is some information on Quicksort variations.

cletus  2009-02-21 23:55:10
If you're saying normal quicksort, I kind of suspect you're right. The wikipedia page seems to describe case B where a single element is placed. I believe the original STL sort (and the current quicksort portions of the introsort) follow case C.
paperhorse  2009-02-22 00:12:00

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