Write a Program to search an element in a singly linked list

Solution

using System;

namespace LinkedListOpearation
{
    class Program
    {
        public static void Main()
        {
            var linkedList = new LinkedList();
            linkedList.Add(6);
            linkedList.Add(1);
            linkedList.Add(5);
            linkedList.Add(1);
            linkedList.Add(3);
            linkedList.Add(9);
            Console.WriteLine("Sorted Linked List is:");
            linkedList.Print(linkedList.Head);
            linkedList.SearchNode(3);
            Console.ReadLine();
        }   
    }

    
    public class LinkedList
    {
        public Node Head;
        public int Size;
        public void Add(int data)
        {
            var node = new Node(data) {Next = Head};
            Head = node;
            Size++;
        }

        public void SearchNode(int data)
        {
            var current = Head;
            var i = 1;
            var flag = false;
 
            if (Head == null)
                return;

            while (current != null)
            {
                if (current.Data == data)
                {
                    flag = true;
                    break;
                }
                i++;
                current = current.Next;
            }

            if (flag)
                Console.WriteLine("Element is present in the list at the position : " + i);  
            else
                Console.WriteLine("Element is not present in the list");
        }

        public void Print(Node head)
        {
            while (head != null)
            {
                Console.WriteLine(head.Data);
                head = head.Next;
            }
        }
    }

    public class Node
    {
        public int Data;
        public Node Next;

        public Node(int data)
        {
            Data = data;
        }
    }
}