Question: 4. [10+10] The transpose of a directed graph G = (V,E) is the graph G (V,ET), where ET = {(v,u) V V(u, v) E}.

4. [10+10] The transpose of a directed graph G = (V,E) is the graph G (V,ET), where ET = {(v,u) V V(u, v) E}. Thus, GT is G with all its edges reversed. (a) Describe an efficient algorithm for computing GT from G for adja- cency list representation of G. (b) Describe an efficient algorithm for computing G from G for adja- cency matrix representation of G.

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