Reverse an Array Using Only Pointers

#include <stdio.h>

void reverse_array(int *ptr, int n) {
   for (int i =n-1;i>=0;i--){
    printf("%d ",*(ptr+i));
   }
}

int main() {
    int n;
    scanf("%d", &n);

    int arr[100];
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    reverse_array(arr, n);
    return 0;
}