How many unique colors will be required for proper vertex coloring of an empty graph having n vertices?(a) 0(b) 1(c) 2(d) nThe question was asked at a job interview.The above asked question is from Graph Coloring topic in section Graph Coloring of Data Structures & Algorithms II

How many unique colors will be required for proper vertex coloring of

1.	How many unique colors will be required for proper vertex coloring of an empty graph having n vertices?(a) 0(b) 1(c) 2(d) nThe question was asked at a job interview.The above asked question is from Graph Coloring topic in section Graph Coloring of Data Structures & Algorithms II
Answer» The correct choice is (b) 1 The best I can explain: An empty GRAPH is a graph WITHOUT any edges. So the NUMBER of unique colors required for proper COLORING of the graph will be 1.

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