AOC 2022 - Day 4

index.js

const fs = require("fs/promises");
const _ = require("lodash");
const mainInput = "input.txt";
const example = "example.txt";
const example2 = "example2.txt";

async function readInput(fileName) {
	const file = await fs.readFile(fileName, "utf-8");
	return file.trim().replace(/\r/g, "").split("\n");
}

async function solveFirst(fileName) {
	const inputs = await readInput(mainInput);
	let totalScrewUps = 0;
	inputs.forEach((pair) => {
		let sectors = pair.split(",");
		let subSectors1 = sectors[0].split("");
		let subSectors2 = sectors[1].split("");
		let sec1Range = [];
		let sec2Range = [];

		for (let i = subSectors1[0]; i <= subSectors1[2]; i++) {
			sec1Range.push(Number(i));
		}
		for (let i = subSectors2[0]; i <= subSectors2[2]; i++) {
			sec2Range.push(Number(i));
		}

		let assign1Comp = sec1Range.every((element) => sec2Range.includes(element));
		let assign2Comp = sec2Range.every((element) => sec1Range.includes(element));

		if (assign2Comp) {
			totalScrewUps += 1;
		}
	});
	return totalScrewUps;
}

async function solveTwo(fileName) {}

(async () => {
	const partOne = await solveFirst(mainInput);
	// const partTwo = await solveTwo(mainInput);
	console.log(partOne);
	// console.log(partTwo);
})();