LeetCode 840: Magic Squares In Grid | CSharp Solution | Matrix Traversal скачать в хорошем качестве

LeetCode 840: Magic Squares In Grid | CSharp Solution | Matrix Traversal

📝 In this video, I solve LeetCode's Magic Squares In Grid problem using a straightforward #matrix #traversal approach in #csharp. We'll detect 3x3 subgrids that form magic squares within a larger grid. ⏱️ **Time Complexity**: O(m*n) where m and n are the grid dimensions 🧠 **Space Complexity**: O(1) - constant extra space TIMESTAMPS 00:00 - Understanding problem statement 00:55 - Problem breakdown 03:04 - Big O Notation calculated 03:33 - Alternate approach using number theory 05:04 - C# solution walk-through 06:23 - Solution analysis - runtime + memory 06:30 - Conclusion KEY CONCEPTS Matrix traversal and submatrix checking Property validation techniques Efficient checking of magic square properties Grid processing patterns MAIN TAKEAWAYS How to efficiently check multiple constraints in matrix problems Techniques for validating magic square properties (rows, columns, diagonals summing to same value) Avoiding unnecessary computations when validating patterns #codingpatterns for grid-based problems RELATED PROBLEMS LeetCode 73: Set Matrix Zeroes LeetCode 867: Transpose Matrix LeetCode 48: Rotate Image LeetCode 766: Toeplitz Matrix RECOMMENDED FOR This video is perfect for software engineers preparing for coding interviews, #leetcode enthusiasts with intermediate knowledge, and anyone looking to improve their matrix manipulation skills in C#. PREREQUISITES Basic understanding of C# syntax Knowledge of 2D arrays and matrix traversal Familiarity with nested loops and conditional logic USEFUL LINKS LeetCode problem: https://leetcode.com/problems/magic-s... Solution code: https://leetcode.com/problems/magic-s... ADDITIONAL TIPS Pay careful attention to the magic square definition (numbers 1-9, all rows/columns/diagonals sum to same value) Consider implementing helper functions to make your code more readable Think about optimizing the validation process to exit early when a constraint is violated 💬 If you found this solution helpful, please like and subscribe for more coding interview preparation videos! Share your approach or questions in the comments below. #leetcode #csharp #coding #interviews #algorithms #magicsquare #matrix