Tree traversals are one of the first things we learn in data structures — but they’re often taught only at a surface level: as different ways to “walk” a tree. What’s rarely emphasized is this: A Quick Refresher Given a binary tree, the three primary depth-first traversals are: Traversal Order Preorder Root → Left → … Read more
Check Same binary Tree Leet 100. Same Tree When we first read the “Same Tree” problem, we often think of comparing the traversal results — like inorder, preorder, or postorder — of both trees. That’s a natural and valid idea, but it’s not necessary or ideal in this case. Case 1 : Using one of … Read more
A Binary Search Tree is a type of binary tree where each node follows a specific ordering property: the left child of a node contains a value less than the node’s value, and the right child contains a value greater than the node’s value. This property makes searching, insertion, and deletion efficient. Introduction A Binary … Read more
A Trie Data Structure (also known as a prefix tree or digital tree) is a specialized data structure used primarily for storing strings. It excels in scenarios where we need to efficiently manage a dynamic set of strings, often involving operations like prefix-based search, autocomplete, and lexicographical sorting. This article explores the design, functionality, and … Read more
A binary tree is a hierarchical data structure in which each node has at most two children, referred to as the left child and the right child. It is a foundational concept in computer science, frequently used in algorithms, data organization, and searching mechanisms. This article will explore the essential aspects of binary trees, including … Read more
A tree is a fundamental data structure in computer science that simulates a hierarchical structure, much like a family tree. It consists of nodes connected by edges, with one node acting as the root, and the rest branching out into child nodes. Trees are widely used in various algorithms, databases, and file systems due to … Read more