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Re:还有SBT

Posted by HeadacherMM at 2010-01-24 19:13:33 on Problem 3481
In Reply To:这题应该是练习Treap的好题。熟悉一下还是不错的。争取过了它。 Posted by:StudyRush at 2010-01-24 19:06:39 
> RT。
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