GATE | GATE MOCK 2017 | Question 21
Consider a directed graph with n vertices and m edges such that all edges have same edge weights. Find the complexity of the best known algorithm to compute the minimum spanning tree of the graph?
(B) O(m logn)
(D) O(n logm)
Explanation: It’s a special case in which all edge weights are equal, so dfs would work and resultant depth first tree would be the spanning tree. So the answer would be O(m+n).
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