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2和3之间有两条无向边

Posted by tengshengbo at 2005-08-09 20:20:14 on Problem 1637
In Reply To:都是无向边,那一定存在欧拉回路 1-2-3-1,为什么是 impossible呢? Posted by:sunmoonstar_love at 2005-08-06 18:24:28


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