class Solution {
public void setZeroes(int[][] matrix) {
boolean row = false;
boolean col = false;
for (int i = 0; i < matrix.length; i++) {
if (matrix[i][0] == 0) {
row = true;
break;
}
}
for (int i = 0; i < matrix[0].length; i++) {
if (matrix[0][i] == 0) {
col = true;
break;
}
}
for (int i = 1; i < matrix.length; i++) {
for (int j = 1; j < matrix[0].length; j++) {
if (matrix[i][j] == 0) {
matrix[i][0] = 0;
matrix[0][j] = 0;
}
}
}
for (int i = 1; i < matrix.length; i++) {
for (int j = 1; j < matrix[0].length; j++) {
if (matrix[i][0] == 0 || matrix[0][j] == 0) {
matrix[i][j] = 0;
}
}
}
if (row) {
for (int i = 0; i < matrix.length; i++) {
matrix[i][0] = 0;
}
}
if (col) {
for (int i = 0; i < matrix[0].length; i++) {
matrix[0][i] = 0;
}
}
}
}