| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 8, and the edges are: (1,2) (0,1) (3,6) (5,1) (1,4) (6,0) (2,8) (2,7) (4,2) (3,2) (3,7) (5,4) (2,5) (1,7) (8,3). |
| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 8, and the edges are: (1,2) (0,1) (3,6) (5,1) (1,4) (6,0) (2,8) (2,7) (4,2) (3,2) (3,7) (5,4) (2,5) (1,7) (8,3). |