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Set Matrix Zeros.java
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Set Matrix Zeros.java
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class Solution {
public void setZeroes(int[][] matrix) {
boolean isZeroCol = false;
boolean isZeroRow = false;
for (int i = 0; i < matrix[0].length; i++) {
if (matrix[0][i] == 0) {
isZeroRow = true;
break;
}
}
for (int i = 0; i < matrix.length; i++) {
if (matrix[i][0] == 0) {
isZeroCol = 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[0][j] = 0;
matrix[i][0] = 0;
}
}
}
for (int i = 1; i < matrix.length; i++) {
for (int j = 1; j < matrix[0].length; j++) {
if (matrix[0][j] == 0 || matrix[i][0] == 0) {
matrix[i][j] = 0;
}
}
}
if (isZeroCol) {
for (int i = 0; i < matrix.length; i++) {
matrix[i][0] = 0;
}
}
if (isZeroRow) {
for (int i = 0; i < matrix[0].length; i++) {
matrix[0][i] = 0;
}
}
}
}