16.1.7. Iterative Quicksort

Try these first

1. 1.

   What is the average-case time complexity of Quicksort?

   Hint

   Think about how often the algorithm runs effectively on typical inputs.

2. 2.

   What is a pivot in the context of Quicksort?

   Hint

   It's crucial for the sorting process.

3. 3.

   What is the worst-case time complexity of Quicksort?

   • O(n)
   • O(n log n)
   • O(n²)

   Hint

   Think about how a sorted array would behave.

4. 4.

   True or False: The average-case complexity of Quicksort is worse than that of Merge sort.

   • True
   • False

   Hint

   Compare their average performance across typical inputs.

5. 5.

   You have an array of random integers. Write a pseudocode for an iterative version of Quicksort.

   Hint

   What data structure would you typically use for managing segments?

6. 6.

   Explain why randomization improves Quicksort performance. Provide an example involving a specific input.

   Hint

   How does the location of the pivot affect sorting efficiency?