programming-examples/c/Search_Sorting/C Program to Implement BogoSort in an Integer Array.c

/*
 * C Program to Implement BogoSort in an Integer Array
 */
#include <stdio.h>
#include <stdlib.h>

#define size 7
/* Function Prototypes */

int is_sorted(int *, int);
void shuffle(int *, int);
void bogosort(int *, int);

int main()
{
    int numbers[size];
    int i;
    printf("Enter the elements of array:");
    for (i = 0; i < size; i++)
        {
            scanf("%d", &numbers[i]);
        }
    bogosort(numbers, size);
    printf("The array after sorting is:");
    for (i = 0; i < size; i++)
        {
            printf("%d\n", numbers[i]);
        }
    printf("\n");
}

/* Code to check if the array is sorted or not */
int is_sorted(int *a, int n)
{
    while (--n >= 1)
        {
            if (a[n] < a[n - 1])
                {
                    return 0;
                }
        }
    return 1;
}

/* Code to shuffle the array elements */
void shuffle(int *a, int n)
{
    int i, t, temp;
    for (i = 0; i < n; i++)
        {
            t = a[i];
            temp = rand() % n;    /* Shuffles the given array using Random function */
            a[i] = a[temp];
            a[temp] = t;
        }
}

/* Code to check if the array is sorted or not and if not sorted calls the shuffle function to shuffle the array elements */
void bogosort(int *a, int n)
{
    while (!is_sorted(a, n))
        {
            shuffle(a, n);
        }
}
/*
*OUTPUT:
Average case:
Enter the elements of array:56
34
96
26
08
87
36
The array after sorting is:8
26
34
36
56
87
96

Best case:
Enter the elements of array:12
23
34
45
56
67
78
The array after sorting is:12
23
34
45
56
67
78

Worst case:
Enter the elements of array:984
38
983
389
37
596
483
The array after sorting is:37
38
389
483
596
983
984
*/