aoc24-03.mts

import { Advent, f, fm, chr, ord, isDigit } from "advent";
import { Set, Map } from "immutable";

const { compute, computeCheck } = await Advent({ day: 3 });

compute(2, async (input) => {
	const data = input.parse(f.str());
	const regex = /mul\((\d+),(\d+)\)|do\(\)|don't\(\)/g;

	let ok = true;
	let ans = 0;

	for (const match of data.matchAll(regex)) {
		console.log(match);
		if (match[0] === "do()") {
			ok = true;
		} else if (match[0] === "don't()") {
			ok = false;
		} else if (ok) {
			const [_, a, b] = match;
			ans += parseInt(a) * parseInt(b);
		}
	}

	return ans;
});