Reverse an Array Using Only Pointers

Code

#include <stdio.h>

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