LeetCode 54: Spiral Matrix | Python Solution | Matrix Traversal

In this video, I tackle the classic #spiralmatrix problem where we need to traverse a matrix in spiral order from outside to inside. #leetcode #matrix #pythonsolution ⏱️ **Time Complexity**: O(m*n) where m and n are the dimensions of the matrix 🗂️ **Space Complexity**: O(1) excluding the output array ## 📌 Timestamps: 00:00 - Problem statement 00:41 - Problem breakdown 02:01 - Dry run 05:56 - Big O Notation explained 06:40 - Python code walk-through 08:32 - Solution analysis - runtime + memory 08:40 - Conclusion ## 🧠 Key Concepts: - Matrix traversal techniques - Direction changes in a 2D grid - Boundary processing - Simulation algorithms ## 💡 Main Learning Points: - How to systematically traverse a matrix in spiral order - Techniques to track boundaries as you move through layers - Handling edge cases like single row or column matrices - Clean implementation using Python's list comprehensions ## 🔗 Related LeetCode Problems: - LeetCode 59: Spiral Matrix II - LeetCode 73: Set Matrix Zeroes - LeetCode 48: Rotate Image - LeetCode 240: Search a 2D Matrix II ## 👥 Target Audience: Software engineering interview candidates, Python developers, algorithm enthusiasts, and computer science students preparing for technical interviews. ## 📚 Prerequisites: - Basic Python syntax - Understanding of 2D arrays/matrices - Familiarity with loop structures and conditional statements ## 🔗 Useful Links: - LeetCode problem statement: https://leetcode.com/problems/spiral-matrix/ - Solution code: https://leetcode.com/problems/spiral-matrix/solutions/6986608/matrix-traversal-solution-in-python-with-hsus ## 💫 Additional Tips: - Pay special attention to boundary conditions when traversing the matrix - Practice modifying the algorithm for other traversal patterns - Try implementing the solution without using additional data structures 🔔 If you found this video helpful, please SUBSCRIBE and hit the notification bell to stay updated with more coding interview preparation content! Leave your questions or solution approaches in the comments below. #codinginterview #algorithms #matrixtraversal #pythoncoding