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WA提醒

Posted by Lytning at 2014-11-04 17:28:14 on Problem 1386 and last updated at 2014-11-04 17:29:43 
欧拉路径和欧拉回路都是合法的
也就是说出度=入度+1和入度=出度+1的点可以有一对也可以没有
见楼上数据
如果顺序乱了在这里http://poj.org/showmessage?message_id=344960
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