Lec 03: Mastering Linked Lists | Data Structures & Algorithm| @DevSagarKumarJha ​

Welcome back to the Data Structures & Algorithms series! In this lesson, we dive deep into Linked Lists. We'll cover everything from the basic concept to implementing a Singly Linked List from scratch. Understanding Linked Lists is essential for mastering dynamic memory allocation and more complex data structures like Stacks and Queues. What we cover in this video: 1. Introduction to Linked Lists 2. Why Linked Lists? 3. Real-world Applications 4. Types of Linked Lists - Singly Linked List - Doubly Linked List - Circular Linked List: - Circular Doubly Linked List 5. Operations & Best Practices - Common Operations - Creation of a node. - Insertion (at the beginning, end, or specific positions). - Traversal (using a temporary variable to avoid losing the Head). - Deletion and Reversing a list. - Best Practices: 6. Homework Assignment Time Stamps: 00:00 - Introduction and Topics Overview 00:44 - What is a Linked List? (Definition & Basic Units) 01:36 - The Train Analogy: Visualizing Nodes and Pointers 02:44 - Why Linked Lists? Arrays vs. Linked Lists 03:43 - The Memory Shifting Problem in Arrays 05:58 - Concept of "Soft Deletion" in Databases 06:54 - Real-world Applications of Linked Lists 07:56 - Core Terminology & Abstract Data Type (ADT) 11:13 - Types of Linked Lists Overview 12:12 - Singly Linked List: Structure & Visuals 13:43 - Limitations of Singly Linked Lists 15:41 - Singly Linked List Operations (Insertion & Traversal) 18:50 - Doubly Linked List: Bidirectional Navigation 21:12 - Circular Linked List: Efficient Cyclic Traversal 23:01 - Circular Doubly Linked List: The Ultimate Flexibility 24:12 - Summary of Common Operations (Insert, Delete, Reverse) 25:21 - Best Practices (Null Checking & Memory Leaks) 26:10 - Homework Assignment & Conclusion 🌐 Connect with Me Stay updated with coding tips, roadmaps, and behind-the-scenes content: Instagram: https://www.instagram.com/sagarkumarjha.dev LinkedIn: https://www.linkedin.com/in/devsagarkumarjha/ Twitter/X: https://x.com/DevSagarKrJha GitHub: https://github.com/DevSagarKumarJha Discord: https://discord.gg/abcyeubyDC 💡 Support the Channel If you found this helpful, don't forget to: ✅ Subscribe to System&Code for more DSA content. 👍 Like the video to help it reach more students. 🔔 Turn on Notifications so you never miss a lecture! #DataStructures #Algorithms #LinkedList #CodingTutorial #SystemAndCode #DevSagarKumarJha