1351. Count Negative Numbers in a Sorted Matrix.cpp

class Solution {
public:
    int countNegatives(vector<vector<int>>& grid) {
        int m = grid.size();
        int n = grid[0].size();
        
        int count=0;
        for(int i=0;i<m;i++){
            for(int j=0;j<n;j++){
                if(grid[i][j]<0)
                    count++;
            }
        }
        return count;
    }
};