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Re:这题怎么做?公式怎么推呢?还是用二分?

Posted by bigheadghost at 2007-02-10 16:14:44 on Problem 2601
In Reply To:Re:这题怎么做?公式怎么推呢?还是用二分? Posted by:OurUSTC at 2005-09-11 11:33:27
> 
> 二分,:)
> 懒人不推公式阿

请问这里说的二分指的是什么方法啊?

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