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Re:我就用这个做的，但把可选城市拆成两个点了，交了19次还是WA，有什么陷阱吗

Posted by zfacmilan at 2009-09-12 18:39:30
In Reply To:Re:我就用这个做的，但把可选城市拆成两个点了，交了19次还是WA，有什么陷阱吗 Posted by:Tuz at 2009-09-12 17:57:10 
> rt.
不用拆点，连接城市到汇，权为城市价值。求城市价值总和减最小割
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