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枚举对角线用hash处理一下就差不多了

Posted by frkstyc at 2006-04-21 02:17:24 on Problem 2002
In Reply To:请问这题高效率的算法是什么啊?我实在想不出用什么方法几百ms就ac了啊 Posted by:b412860771 at 2006-04-21 01:31:01


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