43 lines
949 B
TypeScript
43 lines
949 B
TypeScript
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export const main = async (lines: string[]): Promise<number | string> => {
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const { depth, horiz } = lines
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.map((line) => line.split(" "))
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.reduce(
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(acc, [dir, delta]) => {
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const d = Number(delta);
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if (dir === "forward") {
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acc.horiz += d;
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acc.depth += acc.aim * d;
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}
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if (dir === "up") {
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acc.aim -= d;
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}
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if (dir === "down") {
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acc.aim += d;
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}
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return acc;
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},
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{ horiz: 0, depth: 0, aim: 0 },
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);
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return depth * horiz;
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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");
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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 P2 ===");
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console.log(answer);
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}
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