Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. Brian W. Kernighan
Quicksort is an efficient comparison sort algorithm. It can operate in place on the array, requiring small additional amounts of memory to perform sorting.
Quicksort can be faster than merge sort and heap sort. Quicksort is one of the divides and conquers strategy algorithm. It requires careful selection of pivot element. Even if the array nearly sorted or sorted the quicksort takes the same complexity. If the array nearly sorted, we can choose insertion sort for better complexity.
Write a program to implement the quick sort.
Unsorted array before sorting: [12, 34, 56, 23, 45, 78, 46] Sorted array After Quicksort sorting: [12, 23, 34, 45, 46, 56, 78]