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先贪心求出上界,再搜

Posted by yiyiyi4321 at 2007-08-30 13:56:08 on Problem 3134
In Reply To:居然用dfs混过去了,慢死,谁给说说怎么搜比较快? Posted by:1083_3 at 2006-12-11 17:20:36
> rt

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