소스는 다음과 같습니다.
[code:1]#include <iostream>
using namespace std;
class Point
{
public :
Point();
Point( int ax, int ay );
void SetPoint( int ax, int ay );
friend ostream& operator << ( ostream& co, Point pt );
friend Point& operator+( const Point& pt1, const Point& pt2 );
friend Point& operator-( const Point& pt1, const Point& pt2 );
private :
int x, y;
};
Point::Point()
{
x = y = 0;
}
Point::Point( int ax, int ay )