Sorting in C-language

 1#include <stdio.h>
 2int main()
 3{
 4    int i, j, k, temp, n, a[20];
 5
 6    printf("enter the number of elements in the array:\n");
 7    scanf("%d", &n);
 8    printf("\nenter the elements of the array:");
 9    for (i = 0; i < n; i++)
10    {
11        scanf("%d", &a[i]);
12    }
13    for (i = 1; i < n; i++)
14    {
15        for (j = 0; j < n - 1; j++)
16        {
17            if (a[j] > a[j + 1])
18            {
19                temp = a[j];
20                a[j] = a[j + 1];
21                a[j + 1] = temp;
22            }
23        }
24
25        printf("pass %d\n", i);
26
27        for (k = 0; k < n; k++)
28        {
29            printf("%d", a[k]);
30        }
31            printf("\n");
32
33    }}

 1 #include <stdio.h>
 2int main()
 3{
 4    int i, j, n, temp, a[30];
 5    printf("enter the number of elements in the array:\n");
 6    scanf("%d", &n);
 7    printf("\nenter the elements of the array");
 8    for (i = 0; i < n; i++)
 9    {
10        scanf("%d", &a[i]);
11    }
12
13    for (i = 1; i < n; i++)
14    {
15        
16        j = i;
17      while ((a[j-1]>a[j]) && (j >= 0))
18        {   
19            
20            temp=a[j];
21            a[j]=a[j-1];
22            a[j-1]=temp;
23            j--;
24        }
25    
26        
27    }
28    printf("sorted list is\n");
29
30    for (i = 0; i < n; i++)
31    {
32        printf("%d\n", a[i]);
33    }
34
35    return 0;
36}

 1#include <stdio.h>
 2
 3void swap(int *xp, int *yp)
 4{
 5    int temp = *xp;
 6    *xp = *yp;
 7    *yp = temp;
 8}
 9
10void selection(int a[], int n)
11{
12    int i, j, min;
13    for (i = 0; i < n; i++)
14    {
15        min = j;
16        printf("a[%d]:%d\n", i, a[i] );
17        for (j = i + 1; j < n; j++)
18        {
19            printf("a[%d]:%d ", j, a[j] );
20            if (a[j] < a[i])
21            {
22                swap(&a[i], &a[j]);
23            }
24        }printf("\n");
25    }
26}
27void www(int a[], int size)
28{
29    int i;
30    for (i = 0; i < size; i++)
31    {
32        printf("%d\n", a[i]);
33    }
34    printf("\n");
35}
36
37int main()
38{
39    int a[] = {5,6,4,3,2};
40    int n = 5;
41    selection(a, n);
42    printf("sorted array:\n");
43    www(a, n);
44    return 0;
45}