Reverse an Array Using Only Pointers

Code

#include <stdio.h>

void reverse_array(int *ptr, int n) {
   int *start_ptr = ptr;
    int *end_ptr = ptr + n - 1;

    while (start_ptr < end_ptr) {
        // Swap elements pointed to by start_ptr and end_ptr
        int temp = *start_ptr;
        *start_ptr = *end_ptr;
        *end_ptr = temp;

        // Move pointers towards the middle
        start_ptr++;
        end_ptr--;
    }
}

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;
}

Solving Approach