I am getting run time error can you please correct my code

#1

#include
#include
#include
using namespace std;
void generate_subsequence(char* in, char* out,int i,int j) {
if(in[i]=’\0’)
{
out[j]=’\0’;
cout<<out;
return;
}
out[j]=in[i];
generate_subsequence(in,out,i,j+1);
generate_subsequence(in,out,i+1,j);
}
int main() {
char input[10];
int b,d;
cin>>input;
b=strlen(input);
d=pow(2,b);
char output[10];
generate_subsequence(input,output,0,0);
cout<<d<<endl;
}

#2

Check now =>

#3

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