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Re:FT...连通不了的也输出cost......

Posted by 200730690331 at 2009-02-28 00:10:36 on Problem 1679
In Reply To:Re:FT...连通不了的也输出cost...... Posted by:reason at 2008-09-13 16:53:33 
> 居然m = 0的时候输出0
> 如果n != 0 && m == 0 这时候生成树不存在吧
> 我个人认为这种情况应该输出不唯一， 因为不存在， 唯一也没有

我的程序输入m==0时就输出0了，没有打补丁
我这样理解：空树也是树，而且空树是唯一的
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