Reverse an Array Using Only Pointers

Code

#include <stdio.h>

void reverse_array(int *ptr, int n) {
    int temp = 0; 
    int* p_first = ptr; 
    int* p_last = ptr + (n - 1);

    while(p_last > p_first){
        temp = *p_first;
        *p_first = *p_last;
        *p_last = temp; 
        p_first++;
        p_last--; 
    }
}

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