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Re:这题有点阴险，可能出现两条相同边！

Posted by pkf1 at 2011-02-15 10:10:00 on Problem 1273
In Reply To:这题有点阴险，可能出现两条相同边！ Posted by:200892458 at 2009-11-05 20:41:33 
> 如：
> input：
> 3 2
> 1 2 3
> 1 2 4
> 1 2 5
> output：
> 12
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