50. Reverse an Array Using Only Pointers

#include <stdio.h>

void reverse_array(int *ptr, int n) {
    // Your logic here
    int n_half = n/2;
   
    for (int i = 0 ; i < n_half ; i ++)
    {
        int value =  * (ptr + i);
         
        *(ptr + i) =  * (ptr + ((n - 1) - i));
        * (ptr + ((n - 1) - i)) = value;
       

    }

}

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);

    for (int i = 0; i < n; i++) {
        printf("%d", arr[i]);
        if(i < n-1){
            printf(" ");
        }
    }

    return 0;
}