Write a segment of code to perform each of the following operations. You may call any of the member functions of QueType. The details of the queue are encapsulated; you may use only the queue operations in the specification to perform the operations. (You may declare additional queue objects.)

1. Set secondElement to the second element in the queue, leaving the queue without its original front two elements.

2. Set last equal to the rear element in the queue, leaving the queue empty.

3. Set last equal to the rear element in the queue, leaving the queue unchanged.
4. Make a copy of the queue, leaving the queue unchanged.