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时间是不是太紧了？

Posted by alpc04 at 2006-08-02 18:00:06 on Problem 2455
In Reply To:这题的时限怎么样 Posted by:hawk at 2005-06-29 14:30:29 
我用二分枚举答案再FF做的tle了
有什么更好的方法没？
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