DSA with Python - Flood Fill Algorithm | DFS & BFS Grid Coloring | Leetcode 733 - Part 123 [Hindi]

🚀 Welcome to Part 123 of Code & Debug’s DSA with Python Course! In this video, we solve Leetcode 733: Flood Fill, where we simulate how a paint tool fills an area on a grid. We explore both DFS and BFS approaches for this multi-directional traversal problem. 📚 What you’ll learn in this video: ✅ Problem understanding with real-world analogy (paint bucket tool) ✅ DFS approach with recursion and 4-directional calls ✅ BFS approach using queue and deque ✅ How to prevent infinite loops and avoid unnecessary coloring ✅ Time and space complexity of both solutions 💡 Why is this important? Flood Fill is a foundational problem in grid traversal, and mastering it helps in solving many advanced problems like number of islands, surrounded regions, region capture, and maze pathfinding. It also builds your skills in both DFS and BFS on 2D matrices. 👉 Practice the problem on Leetcode: 🔗 https://leetcode.com/problems/flood-fill/ 👉 Refer to the article for better understanding: 📌 https://codeanddebug.in/blog/flood-fill-leetcode-733/ 👉 📄 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 🙏 Thank you for supporting Code & Debug! Don’t forget to like, share, and subscribe to our channel. Hit the 🔔 bell icon to stay updated with our latest lectures. #FloodFill #GridDFS #GridBFS #MatrixTraversal #Leetcode733 #PythonDSA #DSAPythonCourse #CodeAndDebug #DSA2025 #CodingInterviews #Part123