aoc/aoc_2023/day-02/part_2.ts

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2023-12-02 00:25:51 -05:00
export const main = async (lines: string[]): Promise<number | string> => {
const games = lines
.filter((x) => x)
.map((line) => line.split(":").at(-1) as string)
.map((line) => line.split(";").map((x) => x.trim()));
let sum = 0;
for (let i = 0; i < games.length; i++) {
const game = games[i];
const mins = new Map<string, number>([
["red", 0],
["green", 0],
["blue", 0],
]);
for (const play of game) {
const sets = play.split(",").map((x) => x.trim());
for (const [num, color] of sets.map((s) => s.split(" "))) {
mins.set(color, Math.max(mins.get(color)!, parseInt(num)));
}
}
sum += Array.from(mins.keys())
.map((color) => mins.get(color)!)
.reduce((acc, x) => acc * x, 1);
}
return sum;
};
//
const isrun = process.argv.length > 1 && process.argv[1] === import.meta.path;
if (isrun) {
const file = Bun.file("./problem.txt");
const text = await file.text();
const lines = text.split("\n");
console.log("=== COMPUTATION ===\n");
const answer = await main(lines);
console.log("\n=== /COMPUTATION ===\n");
console.log("=== ANSWER TO P2 ===");
console.log(answer);
}