Why is quicksort better than other sorting algorithms in practice ...
The experimental results surprised me deeply since the built-in list.sort performed so much better than other sorting algorithms, even with instances that easily made quicksort, mergesort crash. So it's …
sorting - VBA array sort function? - Stack Overflow
Sorting a multidimensionnal array in VBA The code samples in that thread include: A vector array Quicksort; A multi-column array QuickSort; A BubbleSort. Alain's optimised Quicksort is very shiny: I …
QuickSort Dijkstra 3-Way Partitioning: why the extra swapping?
The crucial part in Quicksort is to partition an array around a pivot, i.e. rearrange the array to have small elements to the left, elements equal to the pivot in the middle and large elements to the right. — …
algorithm - Quicksort with Python - Stack Overflow
Quicksort is not very practical in Python since our builtin timsort algorithm is quite efficient, and we have recursion limits. We would expect to sort lists in-place with list.sort or create new sorted lists with …
sorting - Computer Science Stack Exchange
All quicksort algorithms (that I have seen, including these variants) takes $\Theta (n \log n)$ time in expectation in the average case. Some quicksort algorithms choose the pivot that partition an array …
algorithm - Quicksort: Iterative or Recursive - Stack Overflow
I learnt about quicksort and how it can be implemented in both Recursive and Iterative method. In Iterative method: Push the range (0...n) into the stack Partition the given array with a pivot Pop...
Quicksort with first element as pivot example - Stack Overflow
I am currently studying quicksort and would like to know how it works when the first (or last) element is chosen as the pivot point. Say for example I have the following array: {15, 19, 34, 41, 2...
algorithms - Implementation of QuickSort to handle duplicates ...
In particular, this quicksort implementation is similar to the typical one, but choses its pivot on the left of the array. I have some basic understanding of the quicksort algorithm based on the actual code, but …
algorithm - median of three values strategy - Stack Overflow
I didn't downvote, but I suspect this was downvoted because the question is about the median-of-three strategy as it pertains to quicksort/quickselect, not just finding the median of three elements.
Quick Sort with first element as pivot - Computer Science Stack Exchange
Quicksort doesn't swap the pivot into its correct position in that way, but it lies on the hypothesis that each recursive call sorts the sub-array and then merging sorted sub-arrays would provide a …