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下面的数据合法吗?为什么走出来不是欧拉回路?

Posted by yygy at 2013-04-27 11:56:37 on Problem 2202
In Reply To: Posted by:xfxyjwf at 2006-05-09 13:50:25
5 6
1 3
1 2
2 3
3 4
4 5
1 5

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