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