if there is a implementation of unoredered_map type graph
so we dont know the no of vertices so should i first calculate
no of vertices in order to make indegree array of size V?
Topological sort BFS
hello @deepakjumani09
yeah if u want to make indegree array then u need to know number of vertices in graph.
in most of thr problems number of vertices will be given to u .
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