3 5 2 4 Figure 1: Undirected Graph. Problem 5 (9 points). There is a graph with six nodes and nine edges as shown in Fig- urel. When we use a adjacency matrix G to represent this graph, if there is an edge from node u to noder, then Gu, v = 1. (1) List the adjacency matrix G. (5 points) (2) What are pros and cons of adjacency matrix representation? (4 points)