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Re:试试这个吧,这两组数据比较能说明不可以正向拓扑的,只能反向建图。

Posted by littlezhao at 2010-06-15 14:35:38 on Problem 3687 and last updated at 2010-06-15 14:36:12
In Reply To:试试这个吧,这两组数据比较能说明不可以正向拓扑的,只能反向建图。 Posted by:ImLazy at 2008-09-17 19:28:38
多谢大神数据~~但是为啥呢~~

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