## What is the complexity of quick sort algorithm?

## What is the complexity of quick sort algorithm?

The in-place version of quicksort has a space complexity of O(log n), even in the worst case, when it is carefully implemented using the following strategies. In-place partitioning is used. This unstable partition requires O(1) space.

## What is the complexity of quick sort best case?

n*log(n)Quicksort / Best complexity

**What is the complexity of quick sort in best and worst cases?**

Space Complexity of Quick sort The average case space used will be of the order O(log n) . The worst case space complexity becomes O(n) , when the algorithm encounters its worst case where for getting a sorted list, we need to make n recursive calls.

**What are some sorting algorithms and their complexities?**

Time Complexities of all Sorting Algorithms

Algorithm | Time Complexity | |
---|---|---|

Best | Average | |

Insertion Sort | Ω(n) | θ(n^2) |

Heap Sort | Ω(n log(n)) | θ(n log(n)) |

Quick Sort | Ω(n log(n)) | θ(n log(n)) |

### What is the time and space complexity of quick sort?

Quick Sort Time Complexity Partition of elements take n time. And in quicksort problem is divide by the factor 2. Best Time Complexity : O(nlogn) Average Time Complexity : O(nlogn) Worst Time Complexity : O(n^2)

### What is the complexity of quick sort in worst case?

n^2Quicksort / Worst complexity

**What is the complexity of heap sort?**

The heapsort algorithm itself has O(n log n) time complexity using either version of heapify.

**Which is best sorting algorithm and complexity?**

The time complexity of Quicksort is O(n log n) in the best case, O(n log n) in the average case, and O(n^2) in the worst case. But because it has the best performance in the average case for most inputs, Quicksort is generally considered the “fastest” sorting algorithm.