printing an array backwards in c 2b 2b

1#include <iostream>
2 
3// Print contents of an array in reverse order in C++
4// using array indices
5int main()
6{
7    int arr[] = { 10, 20, 30, 40 };
8    size_t n = sizeof(arr)/sizeof(arr[0]);
9 
10    // iterate backwards over the elements of an array
11    for (int i = n - 1; i >= 0; i--) {
12        std::cout << arr[i] << ' ';
13    }
14 
15    return 0;
16}
17