How can graphs be represented?
Adjacency matrix or adjacency list.
What is a adjacency matrix?
A structure with a column per vertex andd row per vertex
What is an adjacency list?
A linked list for each vertex with adjacent vertices.
Can a directed graph be represented the same way as an undirected one ?
Yes, but only include the verticies adjacent to current, not from.
How to implement a graph?
Define classes for entries , vertices and graphs.