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65 lines (57 loc) · 945 Bytes
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Set_Matrix_Zeroes.cpp
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65 lines (57 loc) · 945 Bytes
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class Solution {
public:
void setZeroes(vector<vector<int> > &matrix) {
bool isRowZero=false;
bool isColZero=false;
int rowSize=matrix.size();
int colSize=matrix[0].size();
for(int i=0;i<colSize;i++)
{
if(matrix[0][i]==0)
{
isRowZero=true;
break;
}
}
for(int i=0;i<rowSize;i++)
{
if(matrix[i][0]==0)
{
isColZero=true;
}
}
for(int i=1;i<rowSize;i++)
for(int j=1;j<colSize;j++)
{
if(matrix[i][j]==0)
{
matrix[i][0]=0;
matrix[0][j]=0;
}
}
for(int i=1;i<rowSize;i++)
{
for(int j=1; j< colSize;j++)
{
if(matrix[i][0]==0 || matrix[0][j]==0)
{
matrix[i][j]=0;
}
}
}
if(isRowZero)
{
for(int i=0;i<colSize;i++)
{
matrix[0][i]=0;
}
}
if(isColZero)
{
for(int i=0;i<rowSize;i++)
{
matrix[i][0]=0;
}
}
}
};