What is wrong?
#include
using namespace std;
void subsi(char *ip,char *op,int i,int j){
//base case
if(ip[i]==’\0’){
op[j]=’\0’;
cout<<op;
cout<<endl;
return;
}
//recursicve case
subsi(ip,op,i+1,j);
op[j]=ip[i];
subsi(ip,op,i+1,j+1);
}
int main() {
int n;
cin>>n;
char ip[1000];
cin.get();
char op[1000];
while(n>0){
cin.getline(ip,1000);
subsi(ip,op,0,0);
n–;
}
return 0;
}