what is wrong in my code 1 testcase fails
#include
using namespace std;
int main() {
int n;
cin>>n;
int a[100][100];
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
cin>>a[i][j];
}
}
int i,j;
bool flag=1;
for( i=0;i<n;i++){
for( j=0;j<n;j++){
if(a[i][j]==1){
break;
}
}
if(j==n){
cout<<i<<endl;
flag=0;
}
}
if(flag){
cout<<"No Celebrity"<<endl;
}
return 0;
}