/*
* C Program to Perform Quick Sort on a set of Entries from a File
* using Recursion
*/
#include <stdio.h>

void quicksort (int [], int, int);

int main()
{
    int list[50];
    int size, i;
    printf("Enter the number of elements: ");
    scanf("%d", &size);
    printf("Enter the elements to be sorted:\n");
    for (i = 0; i < size; i++)
        {
            scanf("%d", &list[i]);
        }
    quicksort(list, 0, size - 1);
    printf("After applying quick sort\n");
    for (i = 0; i < size; i++)
        {
            printf("%d ", list[i]);
        }
    printf("\n");
    return 0;
}
void quicksort(int list[], int low, int high)
{
    int pivot, i, j, temp;
    if (low < high)
        {
            pivot = low;
            i = low;
            j = high;
            while (i < j)
                {
                    while (list[i] <= list[pivot] && i <= high)
                        {
                            i++;
                        }
                    while (list[j] > list[pivot] && j >= low)
                        {
                            j--;
                        }
                    if (i < j)
                        {
                            temp = list[i];
                            list[i] = list[j];
                            list[j] = temp;
                        }
                }
            temp = list[j];
            list[j] = list[pivot];
            list[pivot] = temp;
            quicksort(list, low, j - 1);
            quicksort(list, j + 1, high);
        }
}
/*
*OUTPUT:
Enter the number of elements: 6
Enter the elements to be sorted:
67
45
24
98
12
38
After applying quick sort
12 24 38 45 67 98
*/