// functions_lab1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "iostream.h"

int x, y;
char choice;

void add ( )
{
	int total;
	total = x + y;
	cout << total << endl;
}

void subtract ()
{
	cout << "subtract " << endl;
}

void multiply ()
{
	cout << "multiply" << endl;
}


int _tmain(int argc, _TCHAR* argv[])
{
	while (choice != 'x')
	{
	cout << "                 Menu             " << endl;
	cout << "   a. Add                         " << endl;
	cout << "   b. Subtract                    " << endl;
	cout << "   c. Multiply                    " << endl;
	cout << "   x. Exit                        " << endl;

	cout << "enter your menu choice: " << endl;
	cin >> choice;

	if (choice != 'x')
	{
	cout << "enter two numbers: " << endl;
	cin >> x >> y;
	}
	
	if (choice == 'a')
		add();
	else if (choice == 'b')
		subtract();
	else if (choice == 'c')
		multiply();

	}
	return 0;
}