Bubble sort

-

Sorting

Sorting is a process in which we arrange the data of  any list in any particular order  such as ascending order and descending order.

Bubble sort

 Bubble sort is oldest and slow sorting technique. In this technique first element is compared with second element, second element is compared  with third element, third element is compared with fourth element and so on. This process is repeated till the data is sorted.  
for example:-
10
5
8
3
2
4
in this list 0th element is compare with 1st element  and 1st element is compare with 2nd element and so on till the data is sorted.

Example of bubble sort.  


1st itration.

 step=1
      a[0]>a[1]   true
      swap( a[0],a[1])
        a[0]=5;
        a[1]=10;
step=2
      a[1]>a[2]   true
      swap( a[1],a[2])
        a[1]=8;
        a[2]=10;
step=3
      a[2]>a[3]   true
      swap( a[2],a[3])
        a[2]=3;
        a[3]=10;
step=4
      a[3]>a[4]   true
      swap( a[3],a[4])
        a[3]=2;
        a[4]=10;
step=5
      a[4]>a[5]   true
      swap( a[4],a[5])
        a[4]=4;
        a[5]=10;
5
8
3
2
4
10

2st itration.
step=1
      a[0]>a[1]   false
          5>8;
step=2
      a[1]>a[2]   true
      swap( a[1],a[2])
        a[1]=3;
        a[2]=8;
step=3
      a[2]>a[3]   true
      swap( a[2],a[3])
        a[2]=2;
        a[3]=8;
step=4
      a[3]>a[4]   true
      swap( a[3],a[4])
        a[3]=4;
        a[4]=8;
5
 3 2 4 8
10

3st itration.

step=1
      a[0]>a[1]   true
          swap(a[0],a[1];
           a[0]=3;
          a[1]=5;
step=2
      a[1]>a[2]   true
      swap( a[1],a[2])
        a[1]=2;
        a[2]=5;
step=3
      a[2]>a[3]   true
      swap( a[2],a[3])
        a[2]=4;
        a[3]=5;
3 2 4 5 8
10


4st itration.

step=1
      a[0]>a[1]   true
          swap(a[0],a[1];
           a[0]=2;
          a[1]=3;
step=2
      a[1]>a[2]   false
2 3 4 5 8
10

       
5st itration.

step=1
      a[0]>a[1] 
         flase

 now all condition is false and data is sorted in ascending order, finally result is that-
2 3 4 5 8
10

Inplementation of bubble sort program


void bubble_sort(int a[],int size)
{

     int i,j,temp;
    for(i=0;i<size-1;i++)
    {
        for(j=0;j<size-i-1;j++)
        {
            if(a[j]>a[j+1])
            {
                temp=a[j];
                a[j]=a[j+1];
                a[j+1]=temp;
            }
        }
    }
    printf("All record in ascending order\n");
    for(i=0;i<size-1;i++)
    {
        printf("%d\n",a[i]);
    }
}

thanku..........
like my facebook page   


Comments

Post a Comment

Popular posts from this blog

python pattern programming

-
Image
PYTHON PATTERN PROGRAMMING Python nested loop: Python allow programmer to use nested loops.Nested loop means when one loop is define into another loop is known as nested loop,in which one is called inner loop and another is called outer loop.In which when outer loop's condition is true than inner loop will be execute. we use the concept of nested loop in pattern programming etc. syntax: while (condition):      while (condition):         statement x     statement y   Some examples of nested loop. Nested loop program. Q. write  a program to print following pattern. P P Y P Y T P Y T H P Y T H O P Y T H O N str = "PYTHON" for  i  in   range ( 0 , 6 ):      print ()      for  j  in   range ( 0 ,i+ 1 ):          print (str[j],  end = ' ' ) Q. write  a program to print following pattern. *  * *  * * *  * * * *  * * * * * for  i  in   range ( 1 , 6 ):          print ()          for
Read more

Decision making statement in python

-
Image
Decision making statement in python In this statement we can take a decision for executing block of statement.if in this case condition is checked.if condition is true then the true part will execute,otherwise false part will execute.        There are four types of decision making statement. (1) simple if statement/single alternative if statement. (2) if-else statement/double alternative if statement. (3) if-else-if statement/else if ladder statement. (4) Nested if statement/compound if statement. (1)simple if statement/single alternative if statement  In this statement if condition is true then true part will execute otherwise no action will generate.  Syntax: if  test expression:     Statement 1     Statement 2     Statement 3    ---------------    ---------------     Statement n Statement x Examples: if  ( age>=18) :    print( "You are eligible for vote" ) (2) if-else statement/double alternative if statement In this statement if co
Read more

Looping statement in python

-
Image
Basic looping structure in python Python supports basic loop structures through iterative statements.iterative statements are decision control statements that are used to repeat the execution of a list of statements.python language supports two types of iterative statements - while loop and for loop. While loop: The while loop provides a mechanism to repeat one or more statements while a particular  condition is true. Syntax: statement x while  (condition):     block of statement statement y  A while loop is also referred to as a top-checking loop since control condition is places as the first line of the code. if the condition evaluates to false, then the statement enclosed in the loop are never executed ... now look following examples: Q. write a program in python to calculate the sum and average of first 10 number. i =  0 s =  0 while (i<= 10 ):      s = s+i      i=i+ 1 avg =  float (s)/ 10 print ( "the sum of first 10
Read more