/* scope4.cpp
 * CS401 - Intro to Comp Sci
 *
 */
#include <iostream>
#include <string>
#include <conio>
using namespace std;

void maybeFlip(int, int&);

int i = 1, y = 2;

int main() {

	char a = 'q';

	cout << "a = " << a << endl;
	cout << "i = " << i << endl;
	cout << "y = " << y << endl;

	if (y < 20) {
		int a = 5;
		maybeFlip(a,i);
		cout << "  a = " << a << endl;
		cout << "  i = " << i << endl;
		maybeFlip(y,a);
		cout << "  a = " << a << endl;
		cout << "  y = " << y << endl;
	}

	cout << "a = " << a << endl;
	cout << "i = " << i << endl;
	cout << "y = " << y << endl;

	getch();

}

void maybeFlip(int a, int &y) {
	i = 20 + a;
	y++;
	if (a < 10)
		i = -i;
}