1. The adjacency matrix, a, could be a twodimensional array of integers with a[i][j] storing the number of edges from vertex i to vertex j. 2. This is an open-ended question, but your answer should...

1. The adjacency matrix, a, could be a twodimensional array of integers with a[i][j] storing the number of edges from vertex i to vertex j.

2. This is an open-ended question, but your answer should consider space requirements for each representation and time requirements for common operations.