Iterative quicksort or quicksort?

Question

In which cases iterative one is faster? What are iterative version's advantages

Answer 1

There is an iterative and a recursive version of quicksort. They both have a time complexity of O(n log n) with worst case of O(n²). However, the iterative version is faster, but has a greater space complexity due to its use of a data structure to simulate the recursion call stack.
Here's an example of a recursive quicksort.
https://code.sololearn.com/c8N978Jok1av/?ref=app
https://www.sololearn.com/learn/669/?ref=app

Answer 2

Thank you