carefree-ladka

import React, { useState, useEffect } from 'react';

const InfiniteScroll = () => {
  const [data, setData] = useState([]);
  const [page, setPage] = useState(1); // Track current page
  const [loading, setLoading] = useState(false); // Track loading state

  const fetchData = async () => {
    setLoading(true); // Set loading state
    try {

carefree-ladka

const inorderTraversal=function(root){
    let node = root;
    const result=[]
  while (node) {
    if (!node.left) {
      result.push(node.val);
      node = node.right;
    } else {
      const predecessor = findPredecessor(node);
      if (predecessor.right === node) {

carefree-ladka

function partition(a, lo, hi) {
    /* 
    //Improve partition choice for the worst case 
    const randomIndex = Math.floor(Math.random() * (hi - lo + 1)) + lo;
    swap(a, lo, randomIndex);  // Move the random pivot to the start
     */
    let i = lo;
    let j = hi + 1;
    let P = a[lo];

carefree-ladka

class Twitter {
    constructor() {
        this.users = {};
        this.tweets = [];
        this.followers = {};
    }

    postTweet(userId, content) {
        const tweet = {
            id: this.tweets.length,

carefree-ladka

class Node {
  constructor(val) {
    this.val = val;
    this.children = [];
  }

  addChild = (child) => this.children.push(child)
}

carefree-ladka

const getAllKeys = (obj) => {
  const result = [];
  const queue = [{ path: [], obj }];

  while (queue.length) {
    const { path, obj: currentObj } = queue.shift();
    for (const [key, value] of Object.entries(currentObj)) {
      const newPath = path.concat(key);
      if (typeof value === 'object' && value !== null) {
        queue.push({ path: newPath, obj: value });

carefree-ladka

const quickSelect = (nums, k, kthMax) => {
  if (!nums.length) return;

  const P = nums[Math.floor(Math.random() * nums.length)];

  const left = [];
  const mid = [];
  const right = [];

  nums.forEach(x => {

carefree-ladka

class TrieNode {
  constructor() {
    this.children = {}
    this.eow = false
    this.word = ""
  }
}


class Trie {

carefree-ladka

class Node {
  constructor(val = 0, left = null, right = null) {
    this.val = val;
    this.left = left;
    this.right = right;
  }
}

const root = new Node(6)
root.left = new Node(3)

carefree-ladka

//https://pokeapi.co/api/v2/pokemon?limit=100
//https://pokeapi.co/api/v2/gender/1
//https://pokeapi.co/api/v2/pokemon/1000

const fetcher = async (url) => {
  try {
    const res = await fetch(url)
    if (res.ok || res.status === 200) return await res.json()
  }
  catch (e) {