#include<iostream>
using namespace std;
class calculator
{
private:
int num1,num2;
public:
calculator(int x,int y)
{
num1=x;
num2=y;
}
friend int add(calculator);
friend int subtraction(calculator);
friend int division(calculator);
friend float mean(calculator);
};
int add(calculator objc)
{
return objc.num1+objc.num2;
}
int subtraction(calculator objs)
{
return objs.num1-objs.num2;
}
int division(calculator objd)
{
return objd.num1/objd.num2;
}
float mean(calculator objm)
{
return objm.num1+objm.num2/2;
}
int main()
{
int a,b;
cout<<"please enter the first number:";
cin>>a;
cout<<"please enter the second number:";
cin>>b;
calculator obj(a,b);
cout<<"the addition of two number is:"<<add(obj)<<endl;
cout<<endl;
cout<<"the subtraction of two number is:"<<subtraction(obj)<<endl;
cout<<endl;
cout<<"the division of two number is:"<<division(obj)<<endl;
cout<<endl;
cout<<"the mean of two number is:"<<mean(obj)<<endl;
}
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