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 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…