#include <stdio.h>

void change(int **p);
int main()
{
  int numbers[10] = { 5, 10, 15 }; 
  int *pi;
  pi = numbers;
  printf("the no %d \n",*pi);
  change(&pi); //pass address of pointer
  printf("the no after change %d",*pi);
}
void change(int **p)
{
  *p = *p + 2; //change pi in main
}