#include <stdio.h>

// print an array of integers, all on one line.
void printIntArray(int *a, int n)
{

 int i; // i is a "local variable" inside printIntArray

  // A loop that prints every value in the array
  for (i=0; 1<n; i++)   
      a[i]=a[i]*2;
      // printf("a[%d]=%d ",i,a[i]);

  printf("\n"); // Then we end with a new line"
}

// A main to demonstrate the printIntArray function...

int main()
{

  int b[] = {22,13,78,9,42};
  printIntArray(b, 5);

  return 0; // indicates success
}