1. Choose some graph implementation and implement a graph member function to delete a vertex from the graph. The function should remove not only the vertex, but also all edges that have the vertex as...

1. Choose some graph implementation and implement a graph member function to delete a vertex from the graph. The function should remove not only the vertex, but also all edges that have the vertex as the source or target.

2. Implement an undirected graph class by modifying any of the graph implementations discussed in this chapter.