The previous chapter is related to graphs, as a very popular data structure with a broad range of real-world applications. As a reminder, a graph is a data structure that consists of nodes and edges. Each edge connects two nodes. Moreover, there are a few variants of edges in a graph, such as undirected and directed, as well as unweighted and weighted. A graph can be represented either as an adjacency list or as an adjacency matrix.
All of these topics have been described in this book, together with the problem of graph traversal, finding the minimum spanning tree, node coloring, and finding the shortest path in a graph.
The exemplary graphs are shown in the following diagram:
A graph data structure is commonly used in various applications, ...