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那这道题该怎么想啊?有什么递推公式没

Posted by wanghexiang221 at 2006-12-09 14:46:14 on Problem 3146
In Reply To:明显O(N)的也要超时~~ O(logP(N))的才可以... Posted by:zouyu9631 at 2006-12-09 14:39:32


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