Code:
#include<stdio.h>
int is_prime(int x);
int main(){
    char again;
    int x = 17;
    int count = 0;
    again = 'y';

    cout << "The prime numbers less than or equal to "<< x <<" are:" << endl;
                    for(int i=2 ; i<=x ; i++){
                            if(is_prime(i)){
                            cout
...