reverseArray

#include <stdio.h>
int main() {
    int n,i;
    scanf("%d",&n);
    int arr[n];
    for(i=0;i<n;++i){
        scanf("%d",&arr[i]);
    }
    for(i=0;i<n/2;++i){
        /*Swapping without 3rd variable
        a=a+b;
        b=a-b;
        a=a-b;
        */
        arr[i]=arr[i]+arr[n-1-i];
        arr[n-1-i]=arr[i]-arr[n-1-i];
        arr[i]=arr[i]-arr[n-1-i];
        /*Swapping with 3rd variable
        temp=a;
        a=b;
        b=temp;
        */
    }
    for(i=0;i<n;++i){
        printf("%d ",arr[i]);
    }
    return 0;
}