Graph Representation in Data Structures – When we work with graphs in programming, we need a way to store the graph inside the computer. This is called Graph Representation. There are two main ways to represent a graph: Why do we need Graph Representation? A graph is made of: But a computer cannot directly understand…
A Graph is a nonlinear data structure used to represent connections between different things. Unlike trees, a graph does not have a root node, and it does not follow a strict parent-child structure. A graph is made up of: Simple Real-Life Example of Graph All of these form a network, and networks are best represented…
A Heap is a special tree-based data structure that follows a very simple rule: The parent node is always greater than or smaller than its child nodes. Heaps are mainly used when we want to find the largest or smallest element quickly. Important Point About Heap Types of Heap There are two types of heaps:…
An AVL Tree is a self-balancing Binary Search Tree (BST). In a normal BST, the tree can become unbalanced, which makes searching slow. An AVL Tree solves this problem by automatically maintaining balance after every insertion or deletion. Why do we need an AVL Tree? Let’s understand the problem first. In a BST, if we…
A Binary Search Tree (BST) is a special type of Binary Tree. In a BST, data is stored in a sorted way using a simple rule. Binary Search Tree (BST) Rule This rule defines a Binary Search for every node in a BST: Example of a BST Suppose we insert these values in a Binary…
A binary tree is a structure where every node can have at most two children. It is one of the most important topics in data structures because many advanced data structures are built using this concept. In this binary tree chapter, we will learn the basic terms, types of trees, and different ways to traverse…
A Tree is a non-linear data structure used to store data hierarchically. Unlike arrays or linked lists, data in a tree is not stored in a straight line. Instead, data is arranged like a family tree, where one element is connected to many others. That is why this structure is called a tree. Why do…
A queue is one of the simplest data structures in Java. It works exactly like a line of people waiting for their turn; the one who comes first is served first. A Queue is a data structure that works just like a real-life queue (line) of people. Imagine you are standing in line at a…