11.12 - Sample Problem and Solution
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Practice Questions
Test your understanding with targeted questions
What is the base case for the sum of digits function?
💡 Hint: Think about what happens when there are no digits left.
How can we get the last digit of a number?
💡 Hint: What operation gives you the remainder?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the correct base case for finding the sum of digits?
💡 Hint: What condition signifies the end of recursion?
Recursion can potentially lead to what error?
💡 Hint: What happens when the call stack is overused?
1 more question available
Challenge Problems
Push your limits with advanced challenges
Modify the sum_of_digits function to return the product of the digits instead of the sum.
💡 Hint: Think about how you would change the operator.
Create a new recursive function that counts how many digits are in a given number.
💡 Hint: Consider what defines the count of a number.
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