ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split('\n');
const REINDEER_NAME_REGEX = /^\w+/;
const REINDEER_ARGS_REGEX = /\d+/g;
const REINDEER_POINTS = new Map();
const TIME = 2503;

// Get reindeer name from input
const getReindeerName = input => input.match(REINDEER_NAME_REGEX)[0];

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split('\n');
const INGREDIENT_ATTRIBUTES_REGEX = /(\w+): capacity (-?\d+), durability (-?\d+), flavor (-?\d+), texture (-?\d+), calories (-?\d+)/;
const TEASPOONS_COUNT = 100;

// Parse input and get attributes for all of ingredients
const getIngredientAttributes = input => {
  return input.reduce((map, ingredient) => {
    const parsed = ingredient.match(INGREDIENT_ATTRIBUTES_REGEX);

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split('\n');
const INGREDIENT_ATTRIBUTES_REGEX = /(\w+): capacity (-?\d+), durability (-?\d+), flavor (-?\d+), texture (-?\d+), calories (-?\d+)/;
const TEASPOONS_COUNT = 100;

// Parse input and get attributes for all of ingredients
const getIngredientAttributes = input => {
  return input.reduce((map, ingredient) => {
    const parsed = ingredient.match(INGREDIENT_ATTRIBUTES_REGEX);

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split('\n');
const AUNT_REGEX = /Sue (\d+): (\w+): (\d+), (\w+): (\d+), (\w+): (\d+)/;
const SIGNATURE = {
  children: 3,
  cats: 7,
  samoyeds: 2,
  pomeranians: 3,
  akitas: 0,
  vizslas: 0,

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split('\n');
const AUNT_REGEX = /Sue (\d+): (\w+): (\d+), (\w+): (\d+), (\w+): (\d+)/;
const SIGNATURE = {
  children: value => value == 3,
  cats: value => value > 7,
  samoyeds: value => value == 2,
  pomeranians: value => value < 3,
  akitas: value => value == 0,
  vizslas: value => value == 0,

ghaiklor

const Combinatorics = require('./combinatorics');
const CONTAINERS = [11, 30, 47, 31, 32, 36, 3, 1, 5, 3, 32, 36, 15, 11, 46, 26, 28, 1, 19, 3];

let total = 0;
for (let i = 1; i < CONTAINERS.length - 1; i++) {
  let combination = Combinatorics.combination(CONTAINERS, i);
  let c = [];

  while (c = combination.next()) {
    if (c.reduce((a, b) => a + b) === 150) total++;

ghaiklor

const Combinatorics = require('./combinatorics');
const CONTAINERS = [11, 30, 47, 31, 32, 36, 3, 1, 5, 3, 32, 36, 15, 11, 46, 26, 28, 1, 19, 3].sort((a, b) => b - a);
const MIN_COUNT = 4;

let total = 0;
let combination = Combinatorics.combination(CONTAINERS, MIN_COUNT);
let c;

while (c = combination.next()) {
  if (c.reduce((a, b) => a + b) === 150) total++;

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split(/\n|/);
const WIDTH = 100;
const HEIGHT = 100;

class Grid {
  constructor(width, height, cells) {
    this.width = width;
    this.height = height;
    this.cells = cells;

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8').split(/\n|/);
const WIDTH = 100;
const HEIGHT = 100;

class Grid {
  constructor(width, height, cells) {
    this.width = width;
    this.height = height;
    this.cells = cells;

ghaiklor

const fs = require('fs');
const INPUT = fs.readFileSync('./input.txt', 'utf-8');
const REPLACEMENTS = INPUT.split('\n\n')[0].split('\n');
const MOLECULE = INPUT.split('\n\n')[1];
const ALL_MOLECULES = new Set();

REPLACEMENTS.forEach(replacement => {
  const from = replacement.split(' => ')[0];
  const to = replacement.split(' => ')[1];
  const findRegex = new RegExp(from, 'g');