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Diffstat (limited to 'aoc_2023/day-02/part_2.ts')
-rw-r--r-- | aoc_2023/day-02/part_2.ts | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/aoc_2023/day-02/part_2.ts b/aoc_2023/day-02/part_2.ts new file mode 100644 index 0000000..050df65 --- /dev/null +++ b/aoc_2023/day-02/part_2.ts @@ -0,0 +1,48 @@ +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); +} |