LeetCode 1351: Count Negative Numbers in a Sorted Matrix | C# Solution | Binary Search

Описание: Learn how to efficiently count negative numbers in a sorted matrix using binary search. #leetcode #csharp #binarysearch #arrays

⏱️ Time Complexity: O(m + n)
🚀 Space Complexity: O(1)

⌚ Timestamps:
00:00 - Understanding problem statement
00:27 - Brute force approach
01:01 - Optimized solution
02:01 - Dry run
03:12 - Big O Notation calculated
03:37 - C# code walk-through
04:19 - Solution analysis - runtime + memory
04:27 - Conclusion

🎯 Key Concepts:
Binary Search
2D Matrix Traversal
Sorted Array Properties
Optimization Techniques

💡 Main Learning Points:
Leveraging sorted matrix properties
Efficient binary search implementation
Matrix boundary handling
Edge case considerations

🔗 Related Problems:
#74 Search a 2D Matrix
#240 Search a 2D Matrix II
#378 Kth Smallest Element in a Sorted Matrix
#1337 The K Weakest Rows in a Matrix

👥 Target Audience:
Interview preparation candidates
Software developers learning C#
Data structure enthusiasts
Coding competition participants

📚 Prerequisites:
Basic C# syntax
Array manipulation
Binary search fundamentals
Time complexity analysis

🔍 Useful Links:
Problem: https://leetcode.com/problems/count-n...

💡 Additional Tips:
Focus on the optimal solution using matrix properties
Practice implementing various binary search approaches
Consider different matrix sizes and patterns

🎯 Call to Action:
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