C program for bubble sort

C program for bubble sort: c programming code for bubble sort to sort numbers or arrange them in ascending order. You can easily modify it to print numbers in descending order.

Bubble sort algorithm in c

/* Bubble sort code */
 
#include <stdio.h>
 
int main()
{
  int array[100], n, c, d, swap;
 
  printf("Enter number of elements\n");
  scanf("%d", &n);
 
  printf("Enter %d integers\n", n);
 
  for (c = 0; c < n; c++)
    scanf("%d", &array[c]);
 
  for (c = 0 ; c < ( n - 1 ); c++)
  {
    for (d = 0 ; d < n - c - 1; d++)
    {
      if (array[d] > array[d+1]) /* For decreasing order use < */
      {
        swap       = array[d];
        array[d]   = array[d+1];
        array[d+1] = swap;
      }
    }
  }
 
  printf("Sorted list in ascending order:\n");
 
  for ( c = 0 ; c < n ; c++ )
     printf("%d\n", array[c]);
 
  return 0;
}

Download Bubble sort program.

Output of program:

Bubble sort in c language using function

#include <stdio.h>
 
void bubble_sort(long [], long);
 
int main()
{
  long array[100], n, c, d, swap;
 
  printf("Enter number of elements\n");
  scanf("%ld", &n);
 
  printf("Enter %ld integers\n", n);
 
  for (c = 0; c < n; c++)
    scanf("%ld", &array[c]);
 
  bubble_sort(array, n);
 
  printf("Sorted list in ascending order:\n");
 
  for ( c = 0 ; c < n ; c++ )
     printf("%ld\n", array[c]);
 
  return 0;
}
 
void bubble_sort(long list[], long n)
{
  long c, d, t;
 
  for (c = 0 ; c < ( n - 1 ); c++)
  {
    for (d = 0 ; d < n - c - 1; d++)
    {
      if (list[d] > list[d+1])
      {
        /* Swapping */
 
        t         = list[d];
        list[d]   = list[d+1];
        list[d+1] = t;
      }
    }
  }
}

You can also sort strings using Bubble sort, it is less efficient as its average and worst case complexity is high, there are many other fast sorting algorithms.