#include < conio.h>
#include < iostream.h>

struct koordinat
{int x; int y; };
void tukar_xy(struct koordinat *pos_xy);
main()
{
struct koordinat posisi = {21,34};
clrscr();
cout << "x,y semula = " << posisi.x << "," << posisi.y;
tukar_xy(&posisi);
cout << "\n x,y kini= " << posisi.x << "," << posisi.y;
getche();
}
void tukar_xy(struct koordinat *pos_xy)
{
int z;
z=(*pos_xy).x;
(*pos_xy).x=(*pos_xy).y;
(*pos_xy).y=z;

}