how to reach to a given level???
Doubt in the question
You can reach a particular level using DFS as well as BFS. For the technique using DFS, let’s consider your recursive funtion to explore a vertex is solve (v). In this function, pass an extra paramter count which is initally passed as 0 for root and pass count + 1 for each of the children of a particular node v. Now, to check if you have reached level k, just check if count == k
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