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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what an inversion is in a list.
💡 Hint: Think about the order of elements in an array.
Question 2
Easy
What does the divide and conquer method entail?
💡 Hint: Remember the steps of the algorithm.
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 is an inversion in a sequence?
- A pair of items that are in sequential order
- A pair of items that are not in sequential order
- Any two items in a sequence
💡 Hint: Think about how we define ordering in a list.
Question 2
True or False: A divide and conquer strategy can be used to count inversions efficiently.
- True
- False
💡 Hint: Recall the efficiency compared to a brute force method.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the number of inversions for the following array: [2, 3, 8, 6, 1]. Explain the process you used.
💡 Hint: List pairs in order and check their indices.
Question 2
Consider two rankings, A = [3, 1, 2] and B = [1, 3, 2]. Calculate the number of inversions and describe how you derived the count.
💡 Hint: Focus on how elements are ranked in both A and B.
Challenge and get performance evaluation