#include <bits/stdc++.h>
using namespace std;
void swap(int arr[], int i, int j)
{
int temp=arr[i];
arr[i]= arr[j];
arr[j]= temp;
}
void reverse(int arr[], int size)
{
int left=0;
int right = size-1;
while(left<=right)
{
swap(arr, left, right);
left++;
right–;
}
}
void display(int arr[], int size)
{
for (int i = 0; i < size; i++)
{
cout<<arr[i]<<" ";
}
cout<<endl;
}
int main(int argc, char const *argv[])
{
int size;
int arr[size];
cout<<"enter size ";
cin>>size;
for (int i = 0; i < size; i++)
{
cin>>arr[i];
}
display(arr, size);
reverse(arr, size);
display(arr, size);
return 0;
}