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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a bad string?
💡 Hint: Think of substrings that should not appear.
Question 2
Easy
Define a recurrence relation.
💡 Hint: Focus on how a sequence can be defined recursively.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What qualifies as a bad string?
- A string with a recurring pattern
- A string without a specified substring
- A string of any length
💡 Hint: Focus on the definition of bad strings presented in class.
Question 2
True or False: Recurrence relations can only define numeric sequences.
- True
- False
💡 Hint: Think about how we've defined strings using recurrence.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the total number of valid bit strings of length 5 that do not contain '000'.
💡 Hint: Set your base cases right from 0 to 4.
Question 2
Propose an algorithm that can compute the number of valid strings based on the discussed recurrence relations efficiently.
💡 Hint: Think about how to minimize recalculations by storing previous results.
Challenge and get performance evaluation