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A 了

Posted by shock at 2009-08-15 11:46:03 on Problem 1300
In Reply To:求测试数据！！急 Posted by:shock at 2009-08-15 08:30:15 
A 了，不知道为什么，直接用欧拉回路做不行，然后用度数来判断就AC了
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