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Re:一点点提示，

Posted by gouxudong19 at 2010-10-20 15:52:24 on Problem 1636
In Reply To:一点点提示， Posted by:woqno1 at 2010-03-24 07:34:17 
> 将人按关系分成若数对，用bfs或并查集
> 然后背包或广搜
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