Graph Representations: Adjacency Matrix vs. Adjacency List
Explore two primary graph representations: adjacency matrix and adjacency list. Learn their advantages and limitations to choose the right structure based on graph density, memory use, and traversal needs in Java.
A graph can be represented in memory in different ways. Two of the most common representations are the adjacency matrix and the adjacency list. Each representation has its own advantages and limitations, and the best choice depends on the graph and the problem we want to solve.
Adjacency matrix
An adjacency matrix uses a 2D array to represent connections between vertices. If a graph has n vertices, then the matrix has