shaobos

public class Node {
    int val;
    Node next;
    
    public Node(int val) {
        this.val = val;
        this.next = null;
    }
}

shaobos

class Node:
    def __init__(self, val):
        self.val = val
        self.next = None

class LinkedList:
    def __init__(self):
        self.head = None
    
    def add(self, val):

shaobos

class Node {
  constructor(val) {
    this.val = val;
    this.next = null;
  }
}

class LinkedList {
  constructor() {
    this.head = null;

shaobos

#include <iostream>
using namespace std;

struct Node {
    int data;
    Node* next;
};

class LinkedList {
    private: