const fs = require('fs'); const path = require('path'); /** * Parses a line from the game data file. * * @param {string} line - A line from the game data file. * @returns {object} - An object containing the game ID and the max counts of each color. */ function parseGameData(line) { const parts = line.split(': '); const gameID = parseInt(parts[0].split(' ')[1]); const colorCounts = { red: 0, green: 0, blue: 0 }; const subsets = parts[1].split('; '); subsets.forEach(subset => { subset.split(', ').forEach(color => { const [count, colorName] = color.split(' '); colorCounts[colorName] = Math.max(colorCounts[colorName], parseInt(count)); }); }); return { gameID, colorCounts }; } /** * Calculates the power of a cube set. * * @param {object} colorCounts - The counts of each color. * @returns {number} - The power of the cube set. */ function calculatePower(colorCounts) { return colorCounts.red * colorCounts.green * colorCounts.blue; } /** * Processes the game data from a file. * * @param {string} filePath - The path to the file. * @returns {number} - The sum of the powers of the minimum cube sets. */ function processGames(filePath) { const lines = fs.readFileSync(filePath, 'utf-8').split('\n').filter(line => line); let sumOfPowers = 0; lines.forEach(line => { const { colorCounts } = parseGameData(line); sumOfPowers += calculatePower(colorCounts); }); return sumOfPowers; } // Run tests const testResult = processGames(path.join(__dirname, '../test.txt')); console.assert(testResult === 2286, `Test failed: Expected 2286, got ${testResult}`); console.log(`Test Passed: Sum of powers for the minimum cube sets is ${testResult}`); // Process the actual input file const result = processGames(path.join(__dirname, '../input.txt')); console.log(`From input.txt: Sum of powers for the minimum cube sets is ${result}`);