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zeromatrix.cpp
42 lines (42 loc) · 1 KB
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zeromatrix.cpp
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void Solution::setZeroes(vector<vector<int> > &A) {
// Do not write main() function.
// Do not read input, instead use the arguments to the function.
// Do not print the output, instead return values as specified
// Still have a doubt. Checkout www.interviewbit.com/pages/sample_codes/ for more details
int m=A.size(),n=A[0].size();
int r1=0,c1=0;
for(int i=0;i<n;i++){
if(A[0][i]==0){
r1=1;
break;
}
}
for(int i=0;i<m;i++){
if(A[i][0]==0){
c1=1;
break;
}
}
for(int i=1;i<m;i++){
for(int j=1;j<n;j++){
if(A[i][j]==0){
A[i][0]=0;
A[0][j]=0;
}
}
}
for(int i=1;i<m;i++){
for(int j=1;j<n;j++){
if(A[i][0]==0||A[0][j]==0)
A[i][j]=0;
}
}
if(r1==1){
for(int i=0;i<n;i++)
A[0][i]=0;
}
if(c1==1){
for(int i=0;i<m;i++)
A[i][0]=0;
}
}