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parallel edges are considered distinct and separate ones.

Posted by contest_clarificator at 2006-05-28 14:05:03 on Problem 2831
In Reply To:一个问题（内） Posted by:Mithril at 2006-05-28 14:03:50 
> 譬如有两条重边
> 1 2 10
> 1 2 100
> 
> 我把第2条改成11之后是应该输出No么？还是说我用了第一条边也可以？
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