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ac了，原来起先计算错了。用网络流的。0->A.. -> B.. ->t s=0,t=n+m-1

Posted by cdy20 at 2009-02-17 16:25:25 on Problem 1325
In Reply To:网上有人说用网络流？怎么搞的 Posted by:cdy20 at 2009-02-17 15:21:53 
> 网上有人说用网络流？怎么搞的
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