Question: The reverse of a directed graph G = (V, E) is another directed graph GR = (V. ER) on the same vertex set, but with

The reverse of a directed graph G = (V, E) is another directed graph GR = (V. ER) on the same vertex set, but with all edges reversed; that is, ER = {(v, u) : (u. v) ∈ E}.
Give a linear-time algorithm for computing the reverse of a graph in adjacency list format.

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