Example 48: The Sum of the Digits of a Number
Learn how to calculate the sum of the digits of a number using recursion.
We'll cover the following...
Problem
Write a recursive function that takes in a positive integer as input and calculates the sum of its digits.
Example
| Input | Output |
|---|---|
| 0 | 0 |
| 5 | 5 |
| 345 | 12 |
| 5420 | 11 |
Try it yourself
Try to solve this question on your own in the code widget below. If you get stuck, you can always refer to the solution provided.
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