Recursion in C++

The principles of recursion are the same, regardless of the language used for implementation. This chapter views the topic through the lens of C++. There are a fair number of examples and visualizations. Read through these at a minimum. You might find the exercises useful since the application of a principle is an aid to your understanding. Read Chapter 5 in this book on C++.

1. Objectives

The goals for this chapter are as follows:

  • To understand that complex problems that may otherwise be difficult to solve may have a simple recursive solution.

  • To learn how to formulate programs recursively.

  • To understand and apply the three laws of recursion.

  • To understand recursion as a form of iteration.

  • To implement the recursive formulation of a problem.

  • To understand how recursion is implemented by a computer system.

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