tree 0be98ad98b633ee6874791053ad83fc33326ffd6
parent 0f63d8bf4dc96d106ef237d227807edfbda0046b
author buyingyi <buyingyi@gmail.com> 1374744346 -0700
committer buyingyi <buyingyi@gmail.com> 1374744346 -0700

fix the quick sort corner case by random shuffling the pointer array