day01_adventofcode_2022_part2

day01.mjs

import * as fs from 'fs';

const elves = fs.readFileSync("day01.txt", { encoding: "utf-8" })
    .replace(/\r/g, "")
    .trim()
    .split("\n\n"); // split on newline

function findTop3CalorieElves() {
    const calories = elves.map((elf) => {
        const calories = elf.split("\n").map(Number);
        return calories.reduce((prev, cur) => prev + cur, 0)
    });

    calories.sort((a, b) => b - a);

    console.log(
        calories.slice(0, 3).reduce((prev, cur) => prev + cur, 0)
    );
}

findTop3CalorieElves();