Assume a graph is represented as shown in Figure 9.13 and that operations are performed in the vertex number mode. Give the errors that could occur during:

a. An insert vertex operation.

b. An insert edge operation.

c. A show vertex operation.

Figure 9.13

max edge vertex[o] nu 0 vertex null vertex[2 null vertex[3] nul1 vertex[4] null 2 0 0 00 0 30 0 0 0 0 4L0 000 max edge vertex[o] nu 0 vertex null vertex[2 null vertex[3] nul1 vertex[4] null 2 0 0 00 0 30 0 0 0 0 4L0 000