C#: Bubble sort

Last update on December 20 2024 12:52:38 (UTC/GMT +8 hours)

Write a C# Sharp program to sort a list of elements using Bubble sort.

According to Wikipedia "Bubble sort, sometimes referred to as sinking sort, is a simple sorting algorithm that repeatedly steps through the list to be sorted, compares each pair of adjacent items and swaps them if they are in the wrong order. The pass through the list is repeated until no swaps are needed, which indicates that the list is sorted. The algorithm, which is a comparison sort, is named for the way smaller elements "bubble" to the top of the list. Although the algorithm is simple, it is too slow and impractical for most problems even when compared to insertion sort. It can be practical if the input is usually in sort order but may occasionally have some out-of-order elements nearly in position."

Step by step pictorial presentation :

Sample Solution:-

C# Sharp Code:

using System;

public class Bubble_Sort  
{  
    public static void Main(string[] args)
    { 
        int[] a = { 3, 0, 2, 5, -1, 4, 1 }; // Initializing an array with values
        int t; // Temporary variable for swapping

        Console.WriteLine("Original array :");
        foreach (int aa in a) // Loop to display the original array elements                     
            Console.Write(aa + " "); // Printing each element of the array

        for (int p = 0; p <= a.Length - 2; p++) // Outer loop for passes
        {
            for (int i = 0; i <= a.Length - 2; i++) // Inner loop for comparison and swapping
            {
                if (a[i] > a[i + 1]) // Checking if the current element is greater than the next element
                {
                    t = a[i + 1]; // Swapping elements if they are in the wrong order
                    a[i + 1] = a[i];
                    a[i] = t;
                }
            } 
        }

        Console.WriteLine("\n"+"Sorted array :");
        foreach (int aa in a) // Loop to display the sorted array elements                     
            Console.Write(aa + " "); // Printing each element of the sorted array

        Console.Write("\n"); // Adding a new line at the end
    }
}

Sample Output:

Original array :                                                                                              
3 0 2 5 -1 4 1                                                                                                
Sorted array :                                                                                                
-1 0 1 2 3 4 5

Flowchart:

C# Sharp Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a C# Sharp program to sort a list of elements using Bogosort sort.
Next: Write a C# Sharp program to sort a list of elements using Counting sort