Reverse an Array Using Only Pointers

Code

#include <stdio.h>

void reverse_array(int *ptr, int n) {
    for (int i=0 ; i< n ; i ++ ){
    	int tmp = *(ptr+i);
    	*(ptr+i) = *(ptr+n-1) ;
    	*(ptr+n-1) = tmp ;
    	n--;
	}
}

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