DSA in Python Course – Implement Stack & Queue using Doubly Linked List – Part 87 [Hindi]

🚀 Welcome to Part 87 of Code & Debug’s DSA in Python Course!

In this lecture, we implement both Stack (LIFO) and Queue (FIFO) using a Doubly Linked List from scratch. This approach gives you full control over memory and pointer manipulation — crucial for mastering low-level data structures.

📚 What you’ll learn in this video:
✅ Basics of Doubly Linked List structure (prev & next pointers)
✅ Implementing a Stack using DLL (push, pop, peek)
✅ Implementing a Queue using DLL (enqueue, dequeue, front, rear)
✅ Understanding time & space complexities of all operations
✅ Real-world scenarios where DLL-based stack/queue is useful

💡 Why is this important?
Implementing data structures manually improves your core DSA foundation and helps in solving custom linked-list based interview questions. This concept is useful in designing LRU Caches, Undo-Redo Systems, and Scheduling Queues.

👉 Link to solve the question:
https://www.geeksforgeeks.org/problems/implement-stack-using-linked-list/1
https://www.geeksforgeeks.org/problems/implement-queue-using-linked-list/1

👉 In-Depth Article with Code & Explanations:

Stack using Linked List | Optimal Solution

Queue using Linked List | Complete Guide in Python

👉 📄 Access the full YouTube DSA Playlist Sheet (All Questions in Order):
🔗 https://docs.google.com/spreadsheets/d/1AWE15Fy3wD2iqu2vjK_R7cCiuvSsjYQclcdZmHpF66o/edit?usp=sharing

👉 Enroll in this FREE DSA Python course here:
🔗 https://codeanddebug.in/course/master-dsa-with-leetcode

👉 Enroll for Self-Paced Advanced DSA course here:
🔗 https://codeanddebug.in/course/zero-to-hero-python-dsa

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