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This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Quicksort using Random Sampling Multiple Choice knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the worst case time complexity of randomized quicksort? |
| A. | O(n) |
| B. | O(n log n) |
| C. | O(n<sup>2</sup>) |
| D. | O(n<sup>2</sup> log n) |
| Answer» D. O(n<sup>2</sup> log n) | |
| 2. |
Which of the following is incorrect about randomized quicksort? |
| A. | it has the same time complexity as standard quick sort |
| B. | it has the same space complexity as standard quick sort |
| C. | it is an in-place sorting algorithm |
| D. | it cannot have a time complexity of O(n<sup>2</sup>) in any case. |
| Answer» E. | |
| 3. |
What is the best case time complexity randomized quick sort? |
| A. | O(log n) |
| B. | O(n log n) |
| C. | O(n<sup>2</sup>) |
| D. | O(n<sup>2</sup> log n) |
| Answer» C. O(n<sup>2</sup>) | |
| 4. |
Randomized quick sort is a stable sort. |
| A. | true |
| B. | false |
| Answer» C. | |
| 5. |
Randomized quick sort is an in place sort. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 6. |
What is the average time complexity of randomized quick sort? |
| A. | O(n log n) |
| B. | O(n<sup>2</sup>) |
| C. | O(n<sup>2</sup> log n) |
| D. | O(n log n<sup>2</sup>) |
| Answer» B. O(n<sup>2</sup>) | |
| 7. |
What is the auxiliary space complexity of randomized quick sort? |
| A. | O(1) |
| B. | O(n) |
| C. | O(log n) |
| D. | O(n log n) |
| Answer» D. O(n log n) | |
| 8. |
What is the purpose of using randomized quick sort over standard quick sort? |
| A. | so as to avoid worst case time complexity |
| B. | so as to avoid worst case space complexity |
| C. | to improve accuracy of output |
| D. | to improve average case time complexity |
| Answer» B. so as to avoid worst case space complexity | |
| 9. |
What is a randomized quick sort? |
| A. | quick sort with random partitions |
| B. | quick sort with random choice of pivot |
| C. | quick sort with random output |
| D. | quick sort with random input |
| Answer» C. quick sort with random output | |