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con USTC 取得好成绩！

Posted by zhucheng at 2005-11-14 09:48:30 on Problem 2723
In Reply To:Re:DP,贪心，二分，匹配，网络流....哪位大哥提示一下？头都想大了！ Posted by:OurUSTC at 2005-11-13 23:22:44 
> 2－SAT问题
> 可以变成求最大强连通分量
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