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呵呵,我的方法是有问题,没考虑这样的情况,匹配ac了

Posted by twilight at 2008-12-07 22:19:23 and last updated at 2008-12-07 22:49:55
In Reply To:不知偶理解的对不对: Posted by:Jaakques at 2008-12-07 18:11:48

>    e
>   / \
>  /   \
> a--b--c
>  \   /
>   \ /
>    d
> 
> 这样的话也没有c[i]>1，这个图有解吗？

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