Understanding a Recursive Problem

In this lesson, we'll learn methods to understand and visualize a recursive function.

Understanding the Problem

In the previous lessons, we learned the basic concept of recursion, what it is and when it can be used. Now, we will discuss how recursion works.

Let’s have a look at an example. The code below prints a pattern, that subtracts 55 from the targetNumber until we reach a negative number or 00. Then we add 55 until we reach the targetNumber again.

For example:

If targetNumber =10= 10, then our pattern will be 1010\: 55\: 00\: 55\: 1010.

If targetNumber =8= 8, then our pattern will be 88 3\:3 2-2 3\:3 8\:8.

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