Top "Quicksort" questions

Quicksort superiority over Heap Sort

Heap Sort has a worst case complexity of O(nlogn) while Quicksort has O(n^2). But emperical evidences say quicksort …

algorithm sorting big-o quicksort heapsort

C randomized pivot quicksort (improving the partition function)

I'm a computer science student (just started), I was working on writing from pseudocode a randomized pivot version of Quicksort. …

c arrays quicksort partition

parallel quicksort in c

After a lot of searching for an implementation of parallel quicksort in c, I'm about to dive in and code …

c parallel-processing openmp quicksort

What Sorting Algorithm Is Used By LINQ "OrderBy"?

Evidently LINQ's "OrderBy" had originally been specified as unstable, but by the time of Orca it was specified as stable. …

linq algorithm sorting quicksort

Why quick sort is unstable

I know there are several similar posts, but none of the answers are satisfying, which is why I want to …

quicksort stability

C OpenMP parallel quickSort

Once again I'm stuck when using openMP in C++. This time I'm trying to implement a parallel quicksort. Code: #include &…

c++ c openmp quicksort

Optimal median of medians selection - 3 element blocks vs 5 element blocks?

I'm working on a quicksort-variant implementation based on the Select algorithm for choosing a good pivot element. Conventional wisdom seems …

algorithm language-agnostic sorting quicksort median

"Not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation"

I'm beginning a program using heaps in which I must insertSort, mergeSort, and quickSort into the heap. I was instructed …

c++ heap quicksort mergesort insertion-sort

Python faster than compiled Haskell?

I have a simple script written in both Python and Haskell. It reads a file with 1,000,000 newline separated integers, parses …

python haskell quicksort

Python sorting list with negative number

In attempt to learn python by practicing, I am trying to implement and test out quick sort algorithm using python. …

python python-2.7 sorting quicksort negative-number