49 lines
1.1 KiB
TypeScript
49 lines
1.1 KiB
TypeScript
export const main = async (lines: string[]): Promise<number | string> => {
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let sum = 0;
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for (const line of lines) {
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const [cardS, numbersS] = line.split(" | ");
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const cardNums = cardS
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.split(":")
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.at(1)!
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.split(" ")
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.filter((x) => x)
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.map((x) => x.trim())
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.map((x) => parseInt(x));
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const winners = numbersS
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.split(" ")
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.filter((x) => x)
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.map((x) => x.trim())
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.map((x) => parseInt(x));
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console.log(cardNums, winners);
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const winnerSet = new Set<number>(winners);
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const wins = cardNums.reduce(
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(acc, x) => acc + (winnerSet.has(x) ? 1 : 0),
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0
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);
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if (wins > 0) sum += Math.pow(2, wins - 1);
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}
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return sum;
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};
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//
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const isrun = process.argv.length > 1 && process.argv[1] === import.meta.path;
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if (isrun) {
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const file = Bun.file("./problem.txt");
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const text = await file.text();
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const lines = text.split("\n").filter((x) => x && x.length);
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console.log("=== COMPUTATION ===\n");
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const answer = await main(lines);
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console.log("\n=== /COMPUTATION ===\n");
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console.log("=== ANSWER TO P1 ===");
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console.log(answer);
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}
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