Another approach by which a graph can be represented is by using an adjacency matrix. A matrix is a two-dimensional array. The idea here is to represent the cells with a 1 or 0, depending on whether two vertices are connected by an edge or not. We demonstrate an example graph, along with its corresponding adjacency matrix, in the following diagram:
An adjacency matrix can be implemented using the given an adjacency list. To implement the adjacency matrix, let's take the previous dictionary-based implementation of the graph. Firstly, we have to obtain the key elements of the adjacency matrix. It is important to note that ...
