*Create and Implement program in C++ to define 2 classes. Addition, subtraction, division, average, power and multiplication of 2 variables must be performed using functions.*

#include <iostream>

using namespace std;

class B;

class A{int a,b;

public:

friend  class B;};

class B{int x,power;

float base_no;

public:

friend  class A;

void calculator (A o1) {

int result = 1;

cout << "\nEnter the two number :" <<endl;

cin>>o1.a>>o1.b;

cout << "Enter Choise \nfor Multiply  (*) press 1:\t\nFor subtraction (-) press 2:\t\n For Addition(+) press 3:\t\n For Division (/)press 4:\nFor Average (avg)press 5:\n" <<endl;

cin>>x;

if (x==1){ cout<< "The Multiply of two no is :" <<o1.a*o1.b<<endl; }

else if (x==2) {cout<< "The subtraction of two no is :" <<o1.a-o1.b<<endl;   }

else if (x==3) {  cout<< "The sum of two no is :" <<o1.a+o1.b<<endl;  }

else if (x==4)  {   cout<< "The division of two no is :" <<o1.a/o1.b<<endl;  }

else if (x==5)  {   cout<< "The Average of two no is :" <<(o1.a+o1.b)/2<<endl;  }

cout << " \t<< Enter base and exponent >>:  "<<endl;

cin >> base_no >> power;

cout << base_no << "^" << power << " = ";

while (power != 0) {

result *= base_no;

--power; }

cout << result;}};

int main(){

int c,time,x;

A obj;

B o;

o.calculator(obj);

cout<< "\nDo you want to Run again Calculator function \n then press 1  \nFor Exit press 0 :" <<endl;

cin>>c;

if (c==1){cout<< "\nHow many time to run calculator function:" <<endl;

cin>>time;

for(int i=0;i<time;i++){

o.calculator (obj);}}

else {return 0;}

return 0;}

 Output: