Quick Sort Program In C With Explanation

The sorting algorithm is the well known quicksort.

Quick sort program in c with explanation. Now all the elements smaller than pivot are placed at its left while elements bigger are placed at right. Int partition int a int low int high int pivot index i. Quicksort is a comparison sort meaning that it can sort items of any type for which a less than relation formally a total order is defined. Partitioning the array on the basis of values at high as pivot value.

Quick sort program in c learnprogramo programming made simple include iostream include cstdlib using namespace std. This means the same function can sort the whole array if you pass the first and last indexes or just a sub array if you pass a left value that is not the index of the first element of the array and or a right value that is not the index of the last element. Quicksort is the algorithm that is being used most of the compiler in their sort. Then we arrange the smaller values towards the left side of the pivot and higher values towards the right side of the pivot.

We first pick a pivot element. Always pick first element as pivot. Swapping two values. Repeat the above two steps recursively for both half.

In quick sort first we need to choose a value called pivot preferably the last element of the array. There are various ways to pick a pivot element. Void swap int a int b int temp. Quicksort sometimes called partition exchange sort is an efficient sorting algorithm serving as a systematic method for placing the elements of an array in order.

It creates two empty arrays to hold elements less than the pivot value and elements greater than the pivot value and then recursively sort the sub. Like merge sort quicksort is a divide and conquer algorithm. Quick sort is a divide and conquer algorithm. Program for quick sort in c 1.

It sorts the array in such a way so that the pivot point comes into the middle and at the left of the pivot point smaller elements are generated and at the right of the pivot point larger elements are generated. It picks an element as pivot and partitions the given array around the picked pivot. There are many different versions of quicksort that pick pivot in different ways.