#include <iostream>

#include <iterator>

using namespace std;

void reverse(int* A, int lo, int hi)

{

    if (lo < hi)

    {

        swap(A[lo], A[hi]);

        reverse(A, ++lo, --hi);

    }

}

void reverse(int* A,int n)

{

    reverse(A, , n-);

}

int main()

{

    int A[] = { , ,,,, };

    reverse(A,);

    std::copy(std::begin(A), std::end(A), std::ostream_iterator<int>(std::cout, "\n"));

}