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Re:数据太弱,各大侠可试一试这组数据,很多AC程序都过不了

Posted by dong_123 at 2013-03-14 10:36:48 on Problem 3259
In Reply To:数据太弱,各大侠可试一试这组数据,很多AC程序都过不了 Posted by:bmaster at 2011-03-22 15:18:42
> 1
> 4 1 3
> 1 4 200
> 1 2 1
> 2 3 1
> 3 2 1
> 
> NO
 没负环?2-3 不是负环?

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