C program for bubble sort

C program for bubble sort:

#include <stdio.h>

int main()

{

int i, j, num, arr[250], swap;

 

printf(“Please enter the number of elements\n”);

scanf(“%d”, &num);

 

printf(“Enter %d numbers\n”, num);

for (i = 0; i < num; i++)

scanf(“%d”, &arr[i]);

 

for (i = 0 ; i < ( num – 1 ); i++)

{

for (j = 0 ; j < num – i – 1; j++)

{

if (arr[j] > arr[j+1]) /* For decreasing order, please use < */


{

swap     = arr[j];

arr[j]   = arr[j+1];

arr[j+1] = swap;

}

}

}

 

printf(“Bubble sorting in ascending order:\n”);

 

for ( i = 0 ; i < num ; i++ )

printf(“%d\n”, arr[i]);

 

return 0;

}

 

Output:

Please enter the number of elements

4

Enter 4 numbers

2

1

8

4

Bubble sorting in ascending order:

1

2

4

8


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