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Data Structures & Algorithms Tutorials for Beginners

Welcome to the ultimate Data Structures and Algorithms Tutorial for Beginners, a comprehensive step-by-step learning hub designed to help students and aspiring developers build a strong foundation in DSA.

This page covers all major data structures, including arrays, linked lists, stacks, queues, trees, and graphs, along with important algorithms such as sorting, searching, recursion, and dynamic programming. Each topic is explained with clear examples, practical coding implementations, and easy-to-understand explanations to help you improve your problem-solving skills and prepare for coding interviews, competitive programming, and academic exams.

All you need is to just follow these tutorials to learn Data Structures and algorithms.

What is an Algorithm
What are Data Structures and algorithms
How to calculate the running time of an algorithm
Worst Average and Best-case analysis of the algorithm

Big O Notation
Big O Notation Examples

Linked List
Traversing in Linked list
Operations on the linked list
Insertion in the linked list
Deletion in a linked list
Reversing a linked list
Sorting a linked list
Find and remove the loop in the linked list

Doubly Linked List
Insertion in the doubly linked list
Deletion in the doubly linked list
Reversing a doubly linked list

Circular linked list
Insertion in the circular linked list
Deletion in the circular linked list

Merge two linked lists
Header-linked list
Sorted linked list

Stack in a data structure

Queue in a data structure
Circular Queue in Data Structure
Dequeue in the data structure
Priority Queue in Data Structure
Polish notation

Tree in the data structure

Binary tree
Array representation of the binary tree
linked representation of a binary tree
Traversing in the binary tree
Inorder traversal in the binary tree
Preorder traversal in the binary tree
Postorder traversal in the binary tree
Level order traversal in the binary tree

Binary search tree
Insertion in the binary search tree
Deletion in the binary search tree

Heap in data structures

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