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仔细想想,很easy

Posted by hawk at 2005-04-12 14:11:05 on Problem 1426
In Reply To:这个题有什么好做法吗?我直接构造的在141,153,177那里要用ugly做法过,难道又是像拼木棍一样的搜? Posted by:frkstyc at 2005-04-12 13:44:18


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