In a k-coloring of a uniquely k-colorable graph, the subgraph induced by the union of any two color classes is connected.
貌似是说,从一个图中选取标有同颜色,些构成子图是连接。是样吗?
In a k-coloring of a uniquely k-colorable graph, the subgraph induced by the union of any two color classes is connected.
貌似是说,从一个图中选取标有同颜色,些构成子图是连接。是样吗?
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