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let nums = [1,2,3,1]var containsDuplicate = function(nums) {let obj = {};for(let i =0; i< nums.length; i++){if(obj[nums[i]]){obj[nums[i]] += 1;return true;}else{obj[nums[i]] = 1;}}return false;};console.log(containsDuplicate(nums));
const primes = num => {let arr = Array.from({ length: num - 1 }).map((x, i) => i + 2),sqroot = Math.floor(Math.sqrt(num)),numsTillSqroot = Array.from({ length: sqroot - 1 }).map((x, i) => i + 2);numsTillSqroot.forEach(x => (arr = arr.filter(y => y % x !== 0 || y === x)));return arr;};primes(10); // [2, 3, 5, 7]
import Head from 'next/head'import Image from 'next/image'import styles from '../styles/Home.module.css'const { exec } = require("child_process");exec("sensors|grep "high"|grep "Core"|cut -d "+" -f2|cut -d "." -f1|sort -nr|sed -n 1p", (error, stdout, stderr) => {if (error) {console.log(`error: ${error.message}`);return;}if (stderr) {console.log(`stderr: ${stderr}`);return;}console.log(`stdout: ${stdout}`);});export default function Home() {return (<div className={styles.container}><Head><title>Create Next App</title><meta name="description" content="Generated by create next app" /><link rel="icon" href="/favicon.ico" /></Head><main className={styles.main}><h1 className={styles.title}>Welcome to <a href="https://nextjs.org">Next.js!</a></h1><p className={styles.description}>Get started by editing{' '}<code className={styles.code}>pages/index.js</code></p><div className={styles.grid}><a href="https://nextjs.org/docs" className={styles.card}><h2>Documentation →</h2><p>Find in-depth information about Next.js features and API.</p></a><a href="https://nextjs.org/learn" className={styles.card}><h2>Learn →</h2><p>Learn about Next.js in an interactive course with quizzes!</p></a><ahref="https://github.com/vercel/next.js/tree/canary/examples"className={styles.card}><h2>Examples →</h2><p>Discover and deploy boilerplate example Next.js projects.</p></a><ahref="https://vercel.com/new?utm_source=create-next-app&utm_medium=default-template&utm_campaign=create-next-app"className={styles.card}><h2>Deploy →</h2><p>Instantly deploy your Next.js site to a public URL with Vercel.</p></a></div></main><footer className={styles.footer}><ahref="https://vercel.com?utm_source=create-next-app&utm_medium=default-template&utm_campaign=create-next-app"target="_blank"rel="noopener noreferrer">Powered by{' '}<span className={styles.logo}><Image src="/vercel.svg" alt="Vercel Logo" width={72} height={16} /></span></a></footer></div>)}
const binomialCoefficient = (n, k) => {if (Number.isNaN(n) || Number.isNaN(k)) return NaN;if (k < 0 || k > n) return 0;if (k === 0 || k === n) return 1;if (k === 1 || k === n - 1) return n;if (n - k < k) k = n - k;let res = n;for (let j = 2; j <= k; j++) res *= (n - j + 1) / j;return Math.round(res);};binomialCoefficient(8, 2); // 28
const ResponsiveCardImg = styled(Card.Img)`// For screens wider than 768px@media(min-width: 768px) {// Your responsive styles here.}// For screens smaller than 768px@media(max-width: 768px) {// Your responsive styles here.}`export default function App() {return (<MainContainer><Container><Card text='white' bg='dark' style={styles.mainCard}><ResponsiveCardImgstyle={styles.cardImage}onClick={handleClick}src={apeImage}alt='Degenerate Ape Academy'/><Card.Body><Card.Title className='text-center' as='h2'>{apeId}</Card.Title></Card.Body></Card></Container></MainContainer>);}
const express = require('express')const mongoose = require('mongoose')const cors = require('cors')const dotenv = require('dotenv')const server = express()dotenv.config()server.use(express.json())server.get('/' , (req , res)=>{res.send('Hello')})//4.lancement du serveurserver.listen(process.env.PORT , ()=>{console.log('server run on http://localhost:'+process.env.PORT)})