#vertices

Graphs - Introduction

Introduction A graph is a non-linear data structure consisting of vertices (nodes) connected by edges. Unlike trees, graphs can have cycles, multiple paths between nodes, and connections in any direction. Graphs model relationships and networks, making them fundamental to solving real-world problems in social networks, maps, computer networks, and more. Graphs are one of the most versatile and powerful data structures in computer science. By the end of this tutorial, you’ll understand graph terminology, types of graphs, representation methods, and when to use them. Read more →

November 19, 2025