DSA in Python – Implement Stack using Queue | Two Approaches Explained | Part 85 [Hindi]

🚀 Welcome to Part 85 of Code & Debug’s DSA in Python Course!

In this video, we implement a Stack (LIFO) using Queue (FIFO), a classic interview problem that tests your understanding of data structure manipulation. We’ll explore two different approaches using Python’s queue or deque class.

📚 What you’ll learn in this video:
✅ Difference between Stack and Queue behavior
✅ Approach 1: Costly push() – Efficient pop()
✅ Approach 2: Costly pop() – Efficient push()
✅ Python implementation using deque
✅ Time and space complexity analysis for both approaches

💡 Why is this important?
This is a frequently asked interview problem that checks if you truly understand how stacks and queues operate internally. It’s also a stepping stone for solving advanced questions where you’re required to simulate one data structure using another.

👉 Link to solve the question:
https://leetcode.com/problems/implement-stack-using-queues/description/

👉 In-Depth Article with Code & Explanations:

Implement Stack using Queues | Leetcode 225 | Complete Python Code

👉 📄 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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