Challenge: Color the Graph
Use the fewest possible colors, to color the vertices of a graph such that no two adjacent vertices are the same color.
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Problem statement
Graph coloring involves finding a way of coloring the vertices of a graph.
Implement a function that finds a way of coloring a graph so that no two adjacent vertices are colored using the same color. Try using the minimum number of colors possible.
Input
The input is an undirected graph with no colors assigned.
Output
The output is a graph with all of its vertices colored in the correct way, using the minimum number of colors possible.
Sample input
Graph:
graph {0 -- 1
0 -- 2
1 -- 2
1 -- 3
2 -- 3
3 -- 4}
Sample output
Vertex 0 , Color 0
Vertex 1 , Color 1
Vertex 2 , Color 2
Vertex 3 , Color 0
Vertex 4 , Color 1
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