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用这个算法,把cin改成scanf就从46ms减到15ms了:)

Posted by wesley at 2005-12-24 21:21:22 on Problem 2181
In Reply To:不过好像有更优化的方法 人家都是0~30ms 我要 46 ms Posted by:harrywy at 2005-10-26 22:18:36


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