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这样我就做到31ms

Posted by xiaxia at 2006-03-26 23:30:05 on Problem 2773
In Reply To:用 欧拉函数, 然后枚举, 但是我按解题报告这么做的怎么那么慢 Posted by:semonteer at 2006-03-26 23:29:09


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