• Nov 19, 2022 •CodeCatch
0 likes • 2 views
// There are n rings and each ring is either red, green, or blue. The rings are distributed across ten rods labeled from 0 to 9. // You are given a string rings of length 2n that describes the n rings that are placed onto the rods. Every two characters in rings forms a color-position pair that is used to describe each ring where: // The first character of the ith pair denotes the ith ring's color ('R', 'G', 'B'). // The second character of the ith pair denotes the rod that the ith ring is placed on ('0' to '9'). // For example, "R3G2B1" describes n == 3 rings: a red ring placed onto the rod labeled 3, a green ring placed onto the rod labeled 2, and a blue ring placed onto the rod labeled 1. // Return the number of rods that have all three colors of rings on them. let rings = "B0B6G0R6R0R6G9"; var countPoints = function(rings) { let sum = 0; // Always 10 Rods for (let i = 0; i < 10; i++) { if (rings.includes(`B${i}`) && rings.includes(`G${i}`) && rings.includes(`R${i}`)) { sum+=1; } } return sum; }; console.log(countPoints(rings));
• Apr 14, 2023 •Helper
0 likes • 10 views
const quickSort = arr => { const a = [...arr]; if (a.length < 2) return a; const pivotIndex = Math.floor(arr.length / 2); const pivot = a[pivotIndex]; const [lo, hi] = a.reduce( (acc, val, i) => { if (val < pivot || (val === pivot && i != pivotIndex)) { acc[0].push(val); } else if (val > pivot) { acc[1].push(val); } return acc; }, [[], []] ); return [...quickSort(lo), pivot, ...quickSort(hi)]; }; console.log(quickSort([1, 6, 1, 5, 3, 2, 1, 4])) // [1, 1, 1, 2, 3, 4, 5, 6]
• Mar 28, 2023 •Helper
0 likes • 3 views
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 console client.on('ready', () => { console.log(`Logged in as ${client.user.tag}!`); }); // When a user sends a message, check if they are authenticated client.on('message', async (msg) => { if (!msg.author.bot && !msg.author.authenticated) { const filter = (m) => m.author.id === msg.author.id; const collector = msg.channel.createMessageCollector(filter, { time: 15000 }); // Send an authentication message to the user msg.author.send('Please authenticate yourself by clicking this link: ' + generateAuthURL(msg.author.id)); collector.on('collect', async (m) => { // Check if the message contains the authentication code if (m.content.startsWith('!auth ')) { const code = m.content.slice(6); const { access_token } = await getAccessToken(code); // Set the user's authenticated status and access token msg.author.authenticated = true; msg.author.access_token = access_token; collector.stop(); } }); collector.on('end', () => { if (!msg.author.authenticated) { msg.author.send('Authentication timed out.'); } }); } }); // Generate an authentication URL for the user function generateAuthURL(userId) { const redirectURI = encodeURIComponent('YOUR_REDIRECT_URL'); const scopes = 'identify'; const clientID = 'YOUR_CLIENT_ID'; return `https://discord.com/api/oauth2/authorize?client_id=${clientID}&redirect_uri=${redirectURI}&response_type=code&scope=${scopes}&state=${userId}`; } // Exchange the authorization code for an access token async function getAccessToken(code) { const redirectURI = encodeURIComponent('YOUR_REDIRECT_URL'); const clientID = 'YOUR_CLIENT_ID'; const clientSecret = 'YOUR_CLIENT_SECRET'; const res = await fetch('https://discord.com/api/oauth2/token', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded', }, body: `grant_type=authorization_code&code=${code}&redirect_uri=${redirectURI}&client_id=${clientID}&client_secret=${clientSecret}`, }); return await res.json(); } client.login(token);
0 likes • 9 views
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); // 0 binarySearch([1, 2, 3, 4, 5], 5); // 4 binarySearch([1, 2, 3, 4, 5], 6); // -1
const celsiusToFahrenheit = (celsius) => celsius * 9/5 + 32; const fahrenheitToCelsius = (fahrenheit) => (fahrenheit - 32) * 5/9; // Examples celsiusToFahrenheit(15); // 59 celsiusToFahrenheit(0); // 32 celsiusToFahrenheit(-20); // -4 fahrenheitToCelsius(59); // 15 fahrenheitToCelsius(32); // 0
• Jan 26, 2023 •AustinLeath
0 likes • 7 views
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)