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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what an inversion is.
💡 Hint: Think about two people's different preferences.
Question 2
Easy
What is the time complexity of a brute-force method to count inversions?
💡 Hint: Consider how many comparisons are made.
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?
- A pair ranked similarly
- A ranking disagreement
- A sorting algorithm
💡 Hint: Recall the definition we discussed.
Question 2
True or False: The brute force method is the most efficient way to count inversions.
- True
- False
💡 Hint: Think about the performance of the two methods.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the array [10, 20, 30, 40], if a new number '25' is added, how many inversions are created?
💡 Hint: Check the new number against existing numbers to see if they form inversions.
Question 2
Using your knowledge of merge sort, detail the steps to count inversions for the array [7, 5, 6, 4].
💡 Hint: Break down the problem and count during each merge step.
Challenge and get performance evaluation