Recursion-subsequences

#1

#include
#include
#include
using namespace std;
void subsequences(char in[],char out[],int i,int j){
if(in[i]==’\0’){
out[j]=’\0’;
cout<<out<<" ";
return ;
}
out[j]=in[i];
subsequences(in,out,i+1,j+1);
subsequences(in,out,i+1,j);
}
int main(){
char in[100];
cin>>in;
char out[100];
int n=strlen(in);
subsequences(in,out,0,0);
cout<<endl<<pow(2,n);
}
whats wrong in this code?

#2

@tishya_goyal
hello Tishya,
ur code is correct but the order of ouput is not in the required order.

to print output in required order
image
call this statement (statement in line number 13) before line no 11.

#3

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