Write a C++ program to create a new array swapping the first and last elements of a given array of integers and length will be least 1

#include <iostream>
using namespace std;

static int *test(int numbers[], int arr_length)
          {
            int first = numbers[0];
            numbers[0] = numbers[arr_length - 1];
            numbers[arr_length - 1] = first;

            return numbers;
        }

int main () {
   int *p, i;
   int nums1[] = { 1, 5, 7, 9, 11, 13 };
   cout << "Original array:" << endl;   	
   int arr_length = sizeof(nums1) / sizeof(nums1[0]);
   for ( i = 0; i < arr_length; i++ ) {
      cout << nums1[i] << " ";
   } 
   p =  test(nums1, arr_length);
   cout << "\nNew array (after swapping the first and last elements of the said array): " << endl;   
   for ( i = 0; i < arr_length; i++ ) {
      cout << *(p + i) << " ";
   } 
   return 0;
}