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什么是二部图
更新时间: 2020-09-23 00:00:00  

1、二部图的定义:二部图又称作二分图,是图论中的一种特殊模型。简而言之,就是顶点集V可分割为两个互不相交的子集,并且图中每条边依附的两个顶点都分属于这两个互不相交的子集;

2、二部图的充要条件:无向图G为二分图的充分必要条件是,G至少有两个顶点,且其所有回路的长度均为偶数。

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