/* 2. ´ÙÀ½ ÇÁ·Î±×·¥ÀÇ Ãâ·ÂÀ» ½á¶ó. */


#include <stdio.h>

int number[5] = { 1, 2, 3, 4, 5 }; // ¿©±â¸¦ ¹Ù²Ü °Í

class Point2D {
public:
	int x;
	int y;
	Point2D(int a,int b) { x = a; y = b; }
	void foo(Point2D p,Point2D &q) {
		x = p.x;
		p.x = 100;
		y = q.y;
		q.y = 100;
	}
	void print() {
		printf("%d %d\n",x,y);
	}
};

void foo(Point2D &p)
{
	p.x = p.y = 0;
}

void main()
{
	Point2D x(number[0],number[1]);
	Point2D y(number[2],number[2]);
	Point2D z(number[3],number[4]);

	y.foo(x,z);
	foo(x);
	foo(z);
	x.print();
	y.print();
	z.print();
}