Skip to main content

Bubble sort on linked list in swift

Bubble sort in linked list

Swift program for Bubble sort on linked list. Here more solutions.

import Foundation
// Swift program for
// Bubble Sort For Linked List
class Node
{
    var data : Int;
    var next : Node?;
    init(_ data : Int)
    {
        self.data = data;
        self.next = nil;
    }
}
class LinkedList
{
    var head : Node?;
    // Class constructors
    init()
    {
        self.head = nil;
    }
    // Add node at the beginning of linked list
    func insert(_ value : Int)
    {
        // Create a new node
        let node : Node? = Node(value);
        // Add node at front
        node!.next = self.head;
        // Make new head
        self.head = node;
    }
    // Display all elements
    func display()
    {
        if (self.head != nil)
        {
            var temp : Node? = self.head;
            while (temp != nil)
            {
                // Display node value
                print(temp!.data,terminator: "  ");
                // Visit to next node
                temp = temp!.next;
            }
        }
        else
        {
            print("Empty Linked list");
        }
    }
    // Perform bubble sort in single linked list
    func bubbleSort()
    {
        if (self.head != nil)
        {
            var current : Node? = nil;
            var status : Bool = false;
            repeat
            {
                // Start with first node
                current = self.head;
                // Reset working status
                status = false;
                while (current != nil && current!.next != nil)
                {
                    if (current!.data > current!.next!.data)
                    {
                        // Swap node values
                        current!.data = current!.data + current!.next!.data;
                        current!.next!.data = current!.data - current!.next!.data;
                        current!.data = current!.data - current!.next!.data;
                        // When node value change
                        status = true;
                    }
                    // Visit to next node
                    current = current!.next;
                }
            } while (status);
        }
         else
        {
            print("Empty Linked list");
        }
    }
    static func main()
    {
        let task : LinkedList = LinkedList();
        // Insert element of linked list
        task.insert(15);
        task.insert(5);
        task.insert(42);
        task.insert(9);
        task.insert(50);
        task.insert(7);
        print(" Before sort : ",terminator: "");
        // Display all node
        task.display();
        task.bubbleSort();
        print("\n After sort  : ",terminator: "");
        task.display();
    }
}


LinkedList.main();

Output

 Before sort : 7  50  9  42  5  15
 After sort  : 5  7  9  15  42  50




Comment

Please share your knowledge to improve code and content standard. Also submit your doubts, and test case. We improve by your feedback. We will try to resolve your query as soon as possible.

New Comment