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存在欧拉回路就ok

Posted by hust07t07 at 2007-10-02 12:08:30 on Problem 3409
In Reply To:这组样例是封闭的么? Posted by:hust07t02 at 2007-10-02 12:05:33
> 6
> 0 0 0 1
> 0 0 1 0
> 0 1 1 0
> 1 0 2 0
> 1 0 2 1
> 2 0 2 1

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