ADTs, Data Structures, and Problem Solving with C++ 2nd Edition by Larry Nyhoff

Exercise 1

For Exercises 1-4, assume that q is a queue implemented as described in this section (using a linear linked list), with QueueElement = char. Draw a diagram like that in this section that pictures the queue q after the code segment is executed, or indicate why an error occurs.
? q.enqueue('A'); q.enqueue('B'); q.enqueue('C'); ch = q.front(); q.dequeue(); q.enqueue(ch);