Set Matrix Zeroes

class Solution {
public:
    void setZeroes(vector<vector<int>>& matrix) {
        int m = matrix.size();        
        int n = matrix[0].size();     
        bool rowZero = false;         
        bool colZero = false;         

        
        for (int i = 0; i < n; i++) {
            if (matrix[0][i] == 0) {
                rowZero = true;
                break;
            }
        }

        
        for (int j = 0; j < m; j++) {
            if (matrix[j][0] == 0) {
                colZero = true;
                break;
            }
        }

        
        for (int i = 1; i < m; i++) {
            for (int j = 1; j < n; j++) {
                if (matrix[i][j] == 0) {
                    matrix[i][0] = 0;   
                    matrix[0][j] = 0;   
                }
            }
        }

        
        for (int i = 1; i < m; i++) {
            if (matrix[i][0] == 0) {
                for (int j = 1; j < n; j++) {
                    matrix[i][j] = 0;
                }
            }
        }

        
        for (int j = 1; j < n; j++) {
            if (matrix[0][j] == 0) {
                for (int i = 1; i < m; i++) {
                    matrix[i][j] = 0;
                }
            }
        }

        
        if (rowZero) {
            for (int j = 0; j < n; j++) {
                matrix[0][j] = 0;
            }
        }

        
        if (colZero) {
            for (int i = 0; i < m; i++) {
                matrix[i][0] = 0;
            }
        }
    }
};