Data Structures and Algorithms (DSA) Notes: Beginner to Advanced Guide

This document contains detailed Data Structures and Algorithms (DSA) notes designed for students learning computer science and programming. The notes start with basic concepts and gradually move toward advanced topics, making it easy for beginners to understand and build a strong foundation. The document covers important data structures such as arrays, linked lists, stacks, queues, trees, and graphs, along with commonly used searching and sorting algorithms. It also explains important concepts like recursion, time complexity, space complexity, and Big-O notation. Each topic is explained in a clear and structured way with examples, helping students improve their problem-solving skills and programming knowledge. These notes are useful for college students, beginners in programming, and anyone preparing for coding interviews or computer science exams.