How to Represent a Graph Data Structure in Python
Python representation of graph.
Published in
8 min readMay 9, 2022
Graph is an important data structure studied in Computer Science. Graph theory is an equally important topic in both mathematics and Computer Science.
Representing a graph in a program means finding a way to store the graph in a computer’s memory. Which is a prerequisite to working with graphs in Computer Science.
In this article, I will discuss how to represent a graph using Python.
Table of Contents:· The Basics of Graph
· Two Types of Graph Representation
· Adjacency Matrix Representation
· Adjacency List Representation
∘ Adjacency list of a directed graph:
∘ Adjacency list of an undirected graph:
∘ Adjacency list of a graph with path costs:
· The Graph Class
· Take Input From File
· Conclusion
· Helpful Resources
The Basics of Graph
A graph is a non-linear data structure that consists of a set of nodes and edges. Nodes are also referred to as vertices. An edge is a path that connects two nodes.
If we consider the following graph:
