fungsi

#include <stdio.h>
void tukar (int, int);
main()
{
 int a = 88; int b = 77;
 printf ("NILAI SEBELUM PEMANGGILAN FUNGSI\n");
 printf ("a= %d b= %d\n\n",a,b);
 tukar (a,b);
 printf ("NILAI SESUDAH PEMANGGILAN FUNGSI\n");
 printf("a = %d b = %d\n\n",a,b);
 getch();
}
void tukar (int x, int y)
{
 int z;
 z = x;
 x = y;
 y = z;
 printf ("NILAI DIAKHIRI PEMANGGILAN FUNGSI TUKAR()\n");
 printf ("x = %d y = %d\n\n",x,y);
}