CopyQueue()

public static Queue<int> Copy_Queue(Queue<int> q)
        {
            Queue<int> qhelp = new Queue<int>();
            Queue<int> qnew = new Queue<int>();

            while (!q.IsEmpty())
            {
                qhelp.Insert(q.Head());
                qnew.Insert(q.Remove());
            }

            while (!qhelp.IsEmpty())
            {
                q.Insert(qhelp.Remove());
            }

            return qnew;
        }