C Primer Plus, Fourth Edition

Summary

The list, the queue, and the binary tree are examples of ADTs commonly used in computer programming. Often they are implemented using dynamic memory allocation and linked structures, but sometimes implementing them with an array is a better choice.

When you program using a particular type, say a queue or a tree, you should write the program in terms of the type interface. That way, you can modify and improve the implementation without having to alter programs by using the interface.