- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
- C Conversion programs
- C Decimal to Binary
- C Decimal to Octal
- C Decimal to Hexadecimal
- C Binary to Decimal
- C Binary to Octal
- C Binary to Hexadecimal
- C Octal to Decimal
- C Octal to Binary
- C Octal to Hexadecimal
- C Hexadecimal to Decimal
- C Hexadecimal to Binary
- C Hexadecimal to Octal
- C Pattern Programs
- C Pattern Printing Programs
- C Print Diamond Pattern
- C Print Floyd's Triangle
- C Print Pascal's Triangle
- C Array Programs
- C 1D Array Programs
- C Linear Search
- C Binary Search
- C Largest Element in Array
- C Smallest Element in Array
- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
- C Array Element at Odd
- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
- C Reverse an Array
- C Insert Element in Array
- C Delete Element from Array
- C Merge Two Arrays
- C Bubble Sort
- C Selection Sort
- C Insertion Sort
- C Print Common Elements
- C 2D Array Programs
- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
- C Print Row Column Total
- C 3D Array Programs
- C String Programs
- C Print String
- C Find Length of String
- C Compare Two String
- C Copy a String
- C Concatenate String
- C Reverse a String
- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
- C Count Word in String
- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
- C Sort Words in Descending
- C Uppercase to Lowercase
- C Lowercase to Uppercase
- C Swap Two Strings
- C Check Anagram or Not
- C Check Palindrome String
- C Print Number in Words
- C Print Successive Character
- C Character without Space
- C Remove Extra Spaces
- C File Programs
- C Read a File
- C Write Content to File
- C Read & Display File
- C Copy a File
- C Merge Two Files
- C Reverse File
- C Count All Character in File
- C List Files in Directory
- C Encrypt & Decrypt a File
- C Delete a File
- C Misc Programs
- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
- C Tutorial
- C Programming Library
- C Standard Library
- C Programming Test
- C Programming Test
- Give Online Test
- All Test List

# C Program for Bubble Sort

In this tutorial, we will learn about how to create a program in C that sorts an array in ascending order using bubble sort technique. At last we have also created a function that can be used to sort any given array in ascending order.

But before going through the program, if you are not aware of how bubble sorts works, then refer to the step by step working of Bubble Sort. Now let's move on and implement it in C program.

## Bubble Sort in C

Now let's implement bubble sort in a C program as given below. I'll explain each and every line of code later on. The question is,
**write a program in C that sorts given array in ascending order using Bubble Sort technique**. The answer to this question is:

#include<stdio.h> #include<conio.h> int main() { int arr[50], i, j, n, temp; printf("Enter total number of elements to store: "); scanf("%d", &n); printf("Enter %d elements:", n); for(i=0; i<n; i++) scanf("%d", &arr[i]); printf("\nSorting array using bubble sort technique...\n"); for(i=0; i<(n-1); i++) { for(j=0; j<(n-i-1); j++) { if(arr[j]>arr[j+1]) { temp = arr[j]; arr[j] = arr[j+1]; arr[j+1] = temp; } } } printf("All Array elements sorted successfully!\n"); printf("Array elements in ascending order:\n\n"); for(i=0; i<n; i++) printf("%d ", arr[i]); getch(); return 0; }

As the above program was written under **Code::Blocks** IDE, therefore after successful build and run, here is the first
snapshot of the sample run:

Now supply size for the array say **10** and then enter **10** array elements. After providing array size and its element, press
ENTER key to sort and print all array elements in Ascending order using bubble sort method. Here is the second snapshot of the sample run:

#### Program Explained

- We have asked from user to enter array size
- Then to enter array elements of that size
- Now for sorting, we have used first (outer) for loop from 0 to (n-1) as array indexing starts from 0 not 1.
- And then second (inner)
**for**loop from 0 to (n-i-1). As we have to compare two consecutive element, and if first element is greater than second, then we have to swap. - For example, if value of i is 0, then value of j will also be 0, and
then using if statement, 0
^{th}element is compared with (0+1)^{th}or 1^{st}element. If the element present at 0 will be greater than the element present at 1, then the swapping will be performed. - The loop will run upto the end that is, if total of 10 elements in the array, then at last the 8
^{th}element will gets compared with (8+1)^{th}element, that is 9^{th}element which is the last one. - After running the loop to check, compare and swap each and every consecutive element (or every j
^{th}to (j+1)^{th}element), we have sorted the array in ascending order. - Finally print out the same array that will show all of its element in ascending order

### Display Array after Each Sort

If you want to display the array after each sort, then here is the program you may go for:

#include<stdio.h> #include<conio.h> int main() { int arr[10], i, j, temp; printf("Enter 10 array elements:"); for(i=0; i<10; i++) scanf("%d", &arr[i]); for(i=0; i<(10-1); i++) { for(j=0; j<(10-i-1); j++) { if(arr[j]>arr[j+1]) { temp = arr[j]; arr[j] = arr[j+1]; arr[j+1] = temp; } } printf("\n"); printf("Step %d: ", i+1); for(j=0; j<10; j++) printf("%d ", arr[j]); printf("\n"); } printf("\nSorted Array is:\n"); for(i=0; i<10; i++) printf("%d ", arr[i]); getch(); return 0; }

Here is the final snapshot of this program:

### Bubble Sort Program in C using Function

Here is another program that does the same job using a user-defined function **bubbleSort()**:

#include<stdio.h> #include<conio.h> void bubbleSort(int arr[], int n); int main() { int arr[100], nos, i; printf("How many element that has to be sorted ? "); scanf("%d", &nos); printf("\n"); for(i=0; i<nos; i++) { printf("Enter integer value for element no.%d: ",i+1); scanf("%d",&arr[i]); } bubbleSort(arr, nos); printf("\n\nFinally sorted array is:\n"); for(i=0; i<nos; i++) printf("%d\n",arr[i]); getch(); return 0; } void bubbleSort(int arr[], int no) { int i, j, temp; for(i=no-2; i>=0; i--) { for(j=0; j<=i; j++) { if(arr[j]>arr[j+1]) { temp = arr[j]; arr[j] = arr[j+1]; arr[j+1] = temp; } } } }

After successful build and run. Here is the first screenshot of the sample run:

And here is the second screenshot of the sample run:

#### Program Explained

All the steps are same as discussed in very first program (of this article) except function. As here we have used function to implement bubble sort. Here are some of the main steps that tells how to use function in this case:

- Here we have asked from user to enter array size and then all elements of that size one by one using
**for**loop - We have passed the array and array size to function. Passing array means passing array elements, here array size that comes in square bracket, example, arr[10] is optional.
- After above two steps, we are at function step. In function, we have used same technique as discussed above, that is comparing each consecutive elements from start to end.
- If first is greater than second, then swap, if second is greater than third then swap and so on.
- But here we have initialized i with (no-1). Here
**no**indicates to total number of element. For example, if total number of element is 10, then i is initialized to 8, and in second loop, j is initialized with 0. - Then at first run, the j
^{th}element is compared with (j+1)^{th}element. That is 0^{th}element is compared with (0+1)^{th}element (1^{st}) element. At second run, 1^{st}element is compared with 2^{nd}element and so on. This loop will run total of 8 times to compare 8^{th}element with 9^{th}element which is the last element. - After successfully doing all the above steps, the function execution will be over and our array gets sorted in ascending order.
- Now we only have to display the array element with the help of loop

#### Same Program in Other Languages

« Previous Program Next Program »