quicksort

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Quicksort + Profiling

i\'m trying to profile a quicksort code. the code is as follows: qsort [] = [] qsort (x:xs) = qsort (filt开发者_运维知识库er (< x) xs) ++ [x] ++ qsort (filter (>= x) xs)[详细]

2022-12-26 02:49 分类：问答
Quicksort vs heapsort

Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in w开发者_JAVA百科hich either is preferred?Heapsort is O(N log N) guaranted, what is much better[详细]

2022-12-23 21:11 分类：问答
Worst case for QuickSort - when can it occur?

When analyzing QS, every one always refers to the \"almost sorted\" worst case. When c开发者_JAVA技巧an such a scenario occur with natural input?[详细]

2022-12-22 06:19 分类：问答
Modifying this Quicksort to always use the last element as the pivot

I have the following Quicksort that always chooses the first element of the subsequence as its pivot:[详细]

2022-12-21 11:38 分类：问答
What's the best LINQ way to filter a sequence around a pivot?

I\'m playing with QuickSort and LINQ, and want to separate the sequence into item before, equal-to, and after a pivot.[详细]

2022-12-20 20:42 分类：问答
Multithreaded quicksort or mergesort

How can I implement a concurrent quicksort or mergesort algorithm for Java? We\'ve had issues on a 16-(virtual)-cores Mac where only one core (!) was working using the default Java sorting algo and i[详细]

2022-12-19 02:33 分类：问答
Quicksort not sorting correctly

Attempting to learn from doing an implementation of Quicksort, I cannot find out why it\'s not sorting properly.[详细]

2022-12-17 23:20 分类：问答
Another Quicksort stackoverflow

So I\'ve been trying to implement a quicksort myself, just to learn something from it, but it also generates a stackoverflowexception, but I can\'t seem to find what the cause is.[详细]

2022-12-17 22:51 分类：问答
Quicksort causes stackoverflow

I have the following code, (taken from here), but it causes a stackoverflow exception when there\'s two the same value\'s in the list to sort.[详细]

2022-12-17 08:08 分类：问答
Has anyone seen this improvement to quicksort before?

Handling repeated elements in previous quicksorts I have found a way to handle repeated elements more efficiently in quicksort and would like to know if anyone has seen this done before.[详细]

2022-12-17 04:56 分类：问答