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function printHeap(heap, index, level) {if (index >= heap.length) {return;}console.log(" ".repeat(level) + heap[index]);printHeap(heap, 2 * index + 1, level + 1);printHeap(heap, 2 * index + 2, level + 1);}//You can call this function by passing in the heap array and the index of the root node, which is typically 0, and level = 0.let heap = [3, 8, 7, 15, 17, 30, 35, 2, 4, 5, 9];printHeap(heap,0,0)
const binarySearch = (arr, item) => {let l = 0,r = arr.length - 1;while (l <= r) {const mid = Math.floor((l + r) / 2);const guess = arr[mid];if (guess === item) return mid;if (guess > item) r = mid - 1;else l = mid + 1;}return -1;};binarySearch([1, 2, 3, 4, 5], 1); // 0binarySearch([1, 2, 3, 4, 5], 5); // 4binarySearch([1, 2, 3, 4, 5], 6); // -1
/*** @param {number[]} nums* @param {number} target* @return {number[]}*/var twoSum = function(nums, target) {for(let i = 0; i < nums.length; i++) {for(let j = 0; j < nums.length; j++) {if(nums[i] + nums[j] === target && i !== j) {return [i, j]}}}};
class Timer{start(){this.startTime = Date.now();}stop(){const dt = Date.now() - this.startTime;console.log(dt);return dt;}getExecTime(fun, asynchronous){return asynchronous ? this.getAsyncExecTime(fun) : this.getSyncExecTime(fun);}getSyncExecTime(fun){this.start();fun();return this.stop();}async getAsyncExecTime(fun){this.start();await fun();return this.stop();}static average(fun, numTimes, asynchronous = false){const times = [];const promises = [];let timer = new Timer();if(asynchronous){for(let i = 0; i < numTimes; i++){timer.getAsyncExecTime(fun);}}else{for(let i = 0; i < numTimes; i++){timer.getSyncExecTime(fun);}}return (times => times.reduce(((sum, acc) => sume + acc), 0) / times.length);}static async timeAsync(fun, numTimes){if(numTimes <= 1) return new Timer().getAsyncExecTime(fun);const promises = [];let timer = new Timer(true);for(let i = 0; i < numTimes; i++){promises.push(fun().catch((e)=>{}));}try{await Promise.all(promises).catch((e)=>{});}catch(e){//do absolutely nothing}return timer.stop();}constructor(start = false){if(start) this.start();}}
const Discord = require('discord.js');const client = new Discord.Client();const token = 'YOUR_BOT_TOKEN';// When the bot is ready, log a message to the consoleclient.on('ready', () => {console.log(`Logged in as ${client.user.tag}!`);});// When a user sends a message, check if they are authenticatedclient.on('message', async (msg) => {if (!msg.author.bot && !msg.author.authenticated) {const filter = (m) => m.author.id === msg.author.id;const collector = msg.channel.createMessageCollector(filter, { time: 15000 });// Send an authentication message to the usermsg.author.send('Please authenticate yourself by clicking this link: ' + generateAuthURL(msg.author.id));collector.on('collect', async (m) => {// Check if the message contains the authentication codeif (m.content.startsWith('!auth ')) {const code = m.content.slice(6);const { access_token } = await getAccessToken(code);// Set the user's authenticated status and access tokenmsg.author.authenticated = true;msg.author.access_token = access_token;collector.stop();}});collector.on('end', () => {if (!msg.author.authenticated) {msg.author.send('Authentication timed out.');}});}});// Generate an authentication URL for the userfunction generateAuthURL(userId) {const redirectURI = encodeURIComponent('YOUR_REDIRECT_URL');const scopes = 'identify';const clientID = 'YOUR_CLIENT_ID';return `https://discord.com/api/oauth2/authorize?client_id=${clientID}&redirect_uri=${redirectURI}&response_type=code&scope=${scopes}&state=${userId}`;}// Exchange the authorization code for an access tokenasync function getAccessToken(code) {const redirectURI = encodeURIComponent('YOUR_REDIRECT_URL');const clientID = 'YOUR_CLIENT_ID';const clientSecret = 'YOUR_CLIENT_SECRET';const res = await fetch('https://discord.com/api/oauth2/token', {method: 'POST',headers: {'Content-Type': 'application/x-www-form-urlencoded',},body: `grant_type=authorization_code&code=${code}&redirect_uri=${redirectURI}&client_id=${clientID}&client_secret=${clientSecret}`,});return await res.json();}client.login(token);
# Acronyms## Computer Numerical Control (CNC)- Typicalldfdfsdffdafdasgfdgfgfdfdafdasfdafda