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哦，原来在断长环的的时候，也要有保护，谢谢大家，基本上明白了，我最怵图论的题了，有些算法还没写过，一碰上图论的就算明白算法，也一直写不好

Posted by sunmoonstar_love at 2005-06-29 23:04:15 on Problem 2438
In Reply To:图连通,存在v不在k圈上,且与圈上某点u相恋, Posted by:ArXoR at 2005-06-29 22:59:34 
> 把u一边断开,接上v,就得到一个k+1路了,然后再弄一个k+1圈,然后再...
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