Set A=(1,3, a, s, t, i} represent alphanumeric characters permitted to be used to set the password of length 4. Write C/C++ program to generate all possible passwords.
--------------------------------------------------------------------------------------------------------------------------

#include<iostream>
using namespace std;
//Author : Vivek S. Sharma
//Copyright : Your copyright notice
class password{
char a[6]={'1','3', 'a','s','t','i'};
int n,count;
public:
password(){
n=6;
count=0;
}
void dispaly(){
for(int i=0 ; i<n ; i++){
for(int j=0 ; j<n ; j++){
for(int k=0 ; k<n ; k++){
for(int l=0 ; l<n ; l++){
cout<<"\n"<<a[i]<<a[j]<<a[k]<<a[l];
count++;
}
}
}
}
cout<<"\nNo. of combinatons : "<<count;
}
};
int main(){
password p;

p.dispaly();
return 0;
}

--------------------------------------------------------------------------------------------------------------------------

**If some mistakes, plz let me know!-----Vivek S. Sharma