Given an undirected graph g, the task is to print the number of connected components in the graph.
There are three connected components:
1 – 5, 0 – 2 – 4 and 3
Approach: The idea is to use a variable count to store the number of connected components and do the following steps:
- Initialize all vertices as unvisited.
- For all the vertices check if a vertex has not been visited, then perform DFS on that vertex and increment the variable count by 1.
Below is the implementation of the above approach:
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