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double也行啊，一般int不够用__int64的啊

Posted by hawk at 2004-07-18 18:06:45 on Problem 1701
In Reply To:终于ac了这题，搞了半天，真是弱啊：（ Posted by:gz2001 at 2004-07-18 18:04:58 
> 不知道有人是不是用O(n^2)的算法过的，我不敢用
> 开始想了一个二分，wa了
> 然后发现可以在O(n)时间作出来，开始用int存，还是wa
> wa了3次才改成double类型，这才AC
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