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Solution: Count Negative Numbers in a Sorted Matrix

Understand how to efficiently count negative numbers in a matrix sorted in non-increasing order by rows and columns. This lesson guides you through an optimized approach that leverages the sorted structure to traverse the matrix in O(m+n) time using constant space. You will learn how to track negative elements row-wise and apply the technique to similar matrix problems.

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. ...