Question: Let G = (V;E) be an undirected graph. Write an O(n+m)-time algorithm to determine whether it is possible to direct the edges of G such

Let G = (V;E) be an undirected graph. Write an O(n+m)-time algorithm to determine whether it is possible to direct the edges of G such that the outdegree of every vertex is at least 1. If it is possible, then your algorithm should show a way to do this.

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