22.11.17 задача 11г

# include <iostream>
using namespace std;

int main()

{
    const int n = 6;
    int a[n];
    int i;
    cout << "enter vector" << endl;
    for (i = 0; i<n; i++)
    {
        cin >> a[i];
    }

    cout << "vector a" << endl;
    for (i = 0; i<n; i++)
        cout << a[i] << " ";
    cout << endl;


    for(i = 0; i<n-1; i++)
    {
        if ((i%2)!=0)
        swap(a[i],a[i+1]);
    }
     swap(a[0],a[n-1]);
    cout << "vector y" << endl;
    for (i = 0; i<n; i++)
        cout << a[i] << " ";
    cout << endl;

    system("pause");

    return 0;
}