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加个剪枝就0ms

Posted by windows8 at 2010-08-20 15:08:44 on Problem 1923
In Reply To:这道题有公式吧? 很多0ms 32k 的, 在纸上乱画,找到些规律(把n条线分成i组平行线得到交点数), 但是肯定是做不到 0ms 的, 高人指点一下! sothink怎么做的? Posted by:sunmoonstar_love at 2005-07-25 01:03:40


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