const input = await Deno.readTextFile("input.txt"); // const input = `Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green // Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue // Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red // Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red // Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green`; const lines = input.split("\n"); type ColorBox = { green: number; red: number; blue: number; } function parseInput(line: string){ const m = /Game (\d+):/.exec(line); if (!m) { throw new Error("Invalid line: " + line) } const id = parseInt(m[1]); const rest = line.slice(m[0].length); const obj = rest.split(";").map(colorStr => { const obj: ColorBox = { red: 0, green: 0, blue: 0 }; const colors = colorStr.split(","); colors.forEach(x=> { const [number, color] = x.trim().split(" "); if (["blue", "green", "red"].indexOf(color) === -1) { throw new Error("Invalid color: " + color); } obj[color as keyof ColorBox] = parseInt(number); }); return obj; }); return { id, colorSets: obj } } function isPossibleBox(f: ColorBox): boolean { return f.blue <= 14 && f.green <= 13 && f.red <= 12; } const games = lines.map(parseInput); const availGames = games.filter(game=> game.colorSets.every(color=> isPossibleBox(color))); const availGameIds = availGames.map(x=> x.id); const sum = availGameIds.reduce((a, b) => a + b, 0); console.log(availGameIds, sum)