DSA Python – Topological Sort Using DFS | GFG Problem | Directed Acyclic Graph – Part 135 [Hindi]

🚀 Welcome to Part 135 of Code & Debug’s DSA Python Course 2025!

In this video, we dive deep into Topological Sorting of a Directed Acyclic Graph (DAG) using Depth First Search (DFS) — a core concept in graph theory and a frequent topic in technical interviews.

📚 What you’ll learn in this video:
✅ What is topological sort and where it is used
✅ DAGs and their real-world applications
✅ Step-by-step DFS implementation
✅ How to maintain a stack to reverse the ordering
✅ Time and space complexity analysis

💡 This problem is fundamental in understanding task scheduling, dependency resolution (like build systems), and cycle detection.

👉 Practice the problem on GFG:
🔗 https://www.geeksforgeeks.org/problems/topological-sort/1

👉 Refer to the article for better understanding:
🔗 https://codeanddebug.in/blog/topological-sort-in-graph/

👉 📄 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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