/* program pass */
#include <stdio.h>    /* library of input/output functions */

/* declare function type before using it */
int example(int x, int *y, int z[]);
void main()
  {
      int x = 5, y = 6; 
      int z[2],w;
      z[0] = 10;
      z[1] = 20;
      w = example(x,&y,z);
      printf("%d %d %d %d %d\n",x,y,z[0],z[1],w);
   }

int example(int x, int *y, int z[])
   {
     int product;
     x = 50;
     *y = 60;
     z[0] = 100;
     z[1] = 200;
     product = x*(*y);
     return product;
   }