#include<stdio.h>

void main()  // this is the equivalent to arrays1.c
{
  int array[3];
  int sum = 0;
  int i = 0;
  int* ptr = array;

  *(ptr+0) = 1;
  *(ptr+1) = 2;
  *(ptr+2) = 3;
  
  i=0;
  do {
    sum = sum + *ptr;
    ptr++;
    i++;
  } while(i < 3);

  printf("Sum: %d\n", sum);
}