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Re:谁能说一下这题的思路！！！！！

Posted by ACMaryland at 2008-08-09 15:21:06 on Problem 1392 and last updated at 2008-08-09 15:21:25
In Reply To:谁能说一下这题的思路！！！！！ Posted by:qbx123 at 2008-03-18 19:16:41 
构图，对于任何一个数a，去掉首位，再补上一个尾位，可以得到两个新数b和c，ab，ac各连一条边，然后求字典序最小的欧拉回路，如POJ1041。
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