#include <stdio.h>
#include<conio.h>
#include<stdlib.h>
class integer
{
    int a, b;

    public:
    void set_value()
    {
        cout << "Enter two numbers: \n";
        cin >> a >> b;
    }
    friend int mean(integer s); //declaration of friend function
};

int mean(integer s)
{
    return int(s.a + s.b) / 2.0; //friend function definition
}

void main()
{
    integer c;
    c.set_value();
    cout << "Mean value: " << mean(c);
    getch();
}
//.........Coded by JAIDEEP JAMBHALE
 

#include <iostream>
using namespace std;

class integer
{
    int a, b;

    public:
    void set_value()
    {
        cout << "Enter two numbers: \n";
        cin >> a >> b;
    }
    friend int mean(integer s); //declaration of friend function
};

int mean(integer s)
{
    return int(s.a + s.b) / 2.0; //friend function definition
}

int main()
{
    integer c;
    c.set_value();
    cout << "Mean value: " << mean(c);
    return 0;
}

//.........Coded by JAIDEEP JAMBHALE