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29 Jul 2016
Quick sort, php: Quick sort PHP implementation: /**** Quick sort: unstable, the optimal time complexity is O(nlogn) and the worst time is O(n^2)* Quick sort is a kind of bubble sort Substantial improvement. Its basic idea is that after one scan,* the length of the sorted sequence can be greatly reduced. In bubble sort, a scan can only ensure that the number with the largest value moves to the correct position, * and the length of the sequence to be sorted may only be reduced by 1. Quick sort can ensure that all the numbers on the left of a certain number (let's use it as the base point) are smaller than it, and * all the numbers on the right are larger than it through one scan. Then use the same method
PHP sorting algorithm: PHP quick sort algorithm principle and algorithm implementation
14 Aug 2018
The content of this article is about PHP sorting: the algorithm principle and algorithm implementation of PHP quick sort. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.
Implementation of php quick sort
06 May 2023
Quick sort is a common sorting algorithm and runs faster than other sorting algorithms in most cases, especially for sorting large-scale data. Implementing quick sort in PHP is also very simple and only requires a few lines of code. This article will introduce the implementation of quick sort in php. What is quick sort? Quick sort is a sorting algorithm based on divide and conquer, which divides the sequence to be sorted into several subsequences, and each subsequence is sorted according to a benchmark value. The reference value can be any number, usually the first or last element is taken, and then the data is divided into
08 Apr 2018
This article introduces the code for quick sorting in the PHP algorithm. Now I share it with you. Friends in need can also refer to it. Let’s take a look.
Quick sort algorithm principle and java recursive implementation
17 Jan 2017
Quick sort is an improvement on bubble sort. If the initial record sequence is ordered by keywords or basically ordered, it degenerates into bubble sort. It uses the recursive principle and has the best average performance among all sorting methods of the same order of magnitude O(n longn). In terms of average time, it is currently considered the best internal sorting method
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