Untitled

#include <iostream>double calculate(double x, double y, double (*pf)(double, double));double f_add(double x, double y);double f_multiply(double x, double y);int main(){	using namespace std;	cout << "Enter two numbers to apply arithmetic operations:\n";	double x;	double y; 	cin >> x;	cin >> y;	while (cin)	{		double add = calculate(x, y, f_add);		double times = calculate(x, y, f_multiply);		cout << "Addition of " << x << " and " << y << " = " << add << endl;		cout << "Addition of " << x << " and " << y << " = " << times << endl;		cout << "Enter another pair of numbers to add/multiply:\n";		cin >> x;			cin >> y;	}	cin.get();	return 0;}double calculate(double x, double y, double (*pf)(double, double)){	double result;	result = (*pf)(x, y);	return result;}double f_add(double x, double y){	return x + y;}double f_multiply(double x, double y){	return x * y;}