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Copy pathSet Matrix Zeroes.cpp
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Set Matrix Zeroes.cpp
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class Solution {
public:
void setZeroes(vector<vector<int>>& matrix) {
int rows = matrix.size(), cols = matrix[0].size();
int rowFlag = 0, colFlag = 0;
for(int i = 0; i < rows; i++){
if(matrix[i][0] == 0){
rowFlag = 1;
break;
}
}
for(int i = 0; i < cols; i++){
if(matrix[0][i] == 0){
colFlag = 1;
break;
}
}
for(int i = 0; i < rows; i++){
for(int j = 0; j < cols; j++){
if(matrix[i][j] == 0){
matrix[i][0] = 0;
matrix[0][j] = 0;
}
}
}
for(int i = 1; i < rows; i++){
for(int j = 1; j < cols; j++){
if(matrix[i][0] == 0 || matrix[0][j] == 0){
matrix[i][j] = 0;
}
}
}
if(rowFlag){
for(int i = 0; i < rows; i++){
matrix[i][0] = 0;
}
}
if(colFlag){
for(int i = 0; i < cols; i++){
matrix[0][i] = 0;
}
}
}
};