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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 rankings.
💡 Hint: Think about the opposite ranking of two items.
Question 2
Easy
What is the time complexity of counting inversions using a brute-force approach?
💡 Hint: Consider checking each pair of items.
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 the definition of an inversion?
- A count of similar preferences
- A count of opposite ranking pairs
- Total number of items
💡 Hint: Think of pairs that are ranked differently.
Question 2
True or False: A merge sort with inversion counting can achieve time complexity of O(n log n).
- True
- False
💡 Hint: Consider the efficiency of merge sort.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the rankings [4, 3, 2, 1], calculate the total number of inversions and explain the reasoning.
💡 Hint: Think about how each element can be paired with elements to its right.
Question 2
Design a function that counts inversions in an array. Demonstrate with an example.
💡 Hint: How does merging relate to counting inversions?
Challenge and get performance evaluation