Reverse an Array In-Place

Code

#include <stdio.h>

void reverse_array(int arr[], int n) {
    // Your logic here
    int temp=0;
    
    int div=n/2;
    if (n%2==0)
    {
        div-=1;
    }
    for (int i =0; i<=(div);i++)
    {   
        temp=arr[i];

        arr[i]=arr[n-i-1];

        arr[n-i-1]=temp;
        // printf("%d  %d %d\n",temp,arr[i],arr[n-i]);
        // printf("%d  %d %d\n",temp,arr[i],arr[n-i]);
        // printf("%d  %d %d\n",temp,arr[i],arr[n-i]);

    }
    // return arr;
}

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