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Re:这道题很多AC的程序其实都是错的！看看这两组数据

Posted by Lerry at 2010-01-07 20:30:53 on Problem 3169
In Reply To:这道题很多AC的程序其实都是错的！看看这两组数据 Posted by:Vidic15 at 2009-11-17 13:51:52 
> 3 2 1
> 1 2 5
> 1 3 10
> 2 3 20
> 这个数据应该输出 -1
> 4 2 1
> 1 3 10
> 2 4 10
> 2 4 2
> 这个数据应该输出 -2

第二组数据输出应该是20吧
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