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Solution: Count Negative Numbers in a Sorted Matrix

Understand how to efficiently count negative numbers in a non-increasing sorted matrix by leveraging its sorted structure. This lesson guides you through an algorithm that scans rows from the right, reducing redundant checks and improving speed. You will learn to implement a solution with linear time complexity relative to matrix dimensions and minimal extra space.

Statement

Given a matrix grid of size m  nm \ * \ n, where each row and column is sorted in non-increasing order, find and return the total count of negative numbers in the matrix. ...