Popularity Checking through counting created accounts

// cpp program: fb and google popularity checker
// AIUB Summer15-16 MiD exam pl2 Code-Writing ques 3
// Author: fueanta

#include <iostream>

using namespace std;

// prototype declaration for classes:
class Facebook;
class GooglePlus;

// prototype declaration for global functions:
void compare(Facebook,GooglePlus);

// Facebook class:
class Facebook{
    string name;
    string password;
    int user_no;
    static int total;
public:
    Facebook();//constructor 1
    Facebook(string,string);// constructor 2
    void set_info(string,string);// setter method
    string get_name();// getter method
    int get_user_no();// getter
    int get_total();// getter
} ; int Facebook::total=0;

// definition for Facebook class constructors:
Facebook::Facebook() {
    /*total++;
    user_no=total;*/
}
Facebook::Facebook(string name,string password) {
    total++;
    user_no=total;
    this->name=name;
    this->password=password;
}

// definition for Facebook Class methods:
void Facebook::set_info(string name,string password) {
    total++;
    user_no=total;
    this->name=name;
    this->password=password;
}
string Facebook::get_name() {
    return name;
}
int Facebook::get_user_no() {
    return user_no;
}
int Facebook::get_total() {
    return total;
}

// GooglePlus class:
class GooglePlus{
    string name;
    string password;
    int user_no;
    static int total;
public:
    GooglePlus();//constructor 1
    GooglePlus(string,string);// constructor 2
    void set_info(string,string);// setter method
    string get_name();// getter method
    int get_user_no();// getter
    int get_total();// getter
} ; int GooglePlus::total=0;

// definition for GooglePlus class constructors:
GooglePlus::GooglePlus() {
    /*total++;
    user_no=total;*/
}
GooglePlus::GooglePlus(string name,string password) {
    total++;
    user_no=total;
    this->name=name;
    this->password=password;
}

// definition for GooglePlus Class methods:
void GooglePlus::set_info(string name,string password) {
    total++;
    user_no=total;
    this->name=name;
    this->password=password;
}
string GooglePlus::get_name() {
    return name;
}
int GooglePlus::get_user_no() {
    return user_no;
}
int GooglePlus::get_total() {
    return total;
}

// Main Function
int main(void) {                                                                   //### MAIN FUNCTION ###//
    int choice_number,x=0,y=0;
    Facebook *fbuser= new Facebook[100];
    GooglePlus *gpuser= new GooglePlus[100];
    string name,password; lol:
    cout << "01. Add a Facebook user.\n02. Add a GooglePlus user.\n03. Compare popularity.\n" << endl;
    cin >> choice_number;
    switch (choice_number) {
        case 1 :
            cout << "\nFacebook Account-> "<< x+1 << endl ;
            cout << "\nName: " ; cin.sync();
            getline(cin,name);
            cout << "Password: " ;
            getline(cin,password);
            fbuser[x].set_info(name,password);
            x++;
            break;
        case 2 :
            cout << "\nGooglePlus Account-> "<< y+1 << endl ;
            cout << "\nName: " ; cin.sync();
            getline(cin,name);
            cout << "Password: " ;
            getline(cin,password);
            gpuser[y].set_info(name,password);
            y++;
            break;
        case 3 :
            compare(fbuser[0],gpuser[0]);
    }
    cout << "\n\n" ;
    cout << "Another Cycle?(yes/no)\n" << endl; string y_n;
    cin >> y_n;
    cout << "\n\n" ;
    if (y_n=="yes")
        goto lol;
    else
        return 0;
}

// definition Compare Function
void compare(Facebook obf,GooglePlus obg) {
    if(obf.get_total()>obg.get_total()) {
        cout << "\n\nFacebook is more popular than googlePlus." << endl;
    }
    else if (obg.get_total()>obf.get_total()) {
        cout << "\n\nGoogle Plus is more popular than Facebook." << endl;
    }
    else
        cout << "\n\nBoth of them have same popularity." << endl;
}