HW 11g

#include <iostream>
using namespace std;
int main()
{   const int n=5;
int a[2*n]={1,4,2,6,3,2,5,4,6,4},i,y[2*n];
for (i=1;i<(2*n);i++)
{
    if ((i+1)%2 == 0)
y[i]=a[i+1];
    else
        y[i]=a[i-1];
}
y[0]=a[2*n-1];
y[2*n-1]=a[0];
for(i=0;i<(2*n);i++)
cout<<y[i]<<' ';
system("pause");
    return 0;
}