ZeikJT

function adventOfCode2023_Day01_Part1(str) {
  return str.trim().split('\n').map((line) => {
    const firstNum = /\d/.exec(line)[0]
    const lastNum = /(\d)[a-zA-Z]*?$/.exec(line)[1]
    return Number(firstNum + lastNum)
  }).reduce((total, num) => total + num, 0)
}

function adventOfCode2023_Day01_Part2(str) {
  const CONVERSION = new Map([

ZeikJT

function getElfCalories(str) {
    return str.trim().split('\n').reduce((arr, val) => {
        if (val === '') {
            arr.push(0)
        } else {
            const maxIndex = arr.length - 1
            arr[maxIndex] = arr[maxIndex] + Number(val)
        }
        return arr
    }, [0])

ZeikJT

class MagicString {
	static #convertStringToData(str) {
		return {str, start: 0, length: str.length}
	}
	static #makeDataCopy(data) {
		return data.map((data) => ({...data}))
	}
	static #splitData(index, data) {
		let offset = index
		const offsetIndex = data.findIndex(({length}) => {

ZeikJT

function vectorMove(vector) {
  for (let i = vector.length - 2; i >= 0; i--) {
    if (vector[i] === 0) continue
    for (let j = i + 1; j < vector.length; j++) {
      if (vector[i] !== vector[j] && vector[j] !== 0) break
      if (vector[j] === 0) {
        vector[j] = vector[i]
      } else {
        vector[j] *= 2
      }

ZeikJT

function adventOfCode2015_Day01_Part1(str) {
    return Array.prototype.reduce.call(str, (floor, char) => (floor + (char === '(' ? 1 : -1)), 0)
}

function adventOfCode2015_Day01_Part2(str) {
    let floor = 0
    let position = 1
    for (const char of str) {
        floor += char === '(' ? 1 : -1
        if (floor === -1) {

ZeikJT

function adventOfCode2017_Day01_Part1(str) {
    str += str[0]
    let sum = 0
    for (let i = 0; i < str.length - 1; i++) {
        if (str[i] == str[i + 1]) {
            sum += Number(str[i])
        }
    }
    return sum
}