17 lines
403 B
JavaScript
17 lines
403 B
JavaScript
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const fs = require('fs');
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const file = fs.readFileSync(__dirname + '/input.txt').toString('utf-8');
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const groups = file.split('\n\n');
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let total = 0;
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groups.forEach(answers => {
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answers = answers
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.replace(/\n/g, '')
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.split('');
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let answered = {};
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answers.forEach(a => answered[a] = true);
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total += Object.keys(answered).length;
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});
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console.log(`Total: ${total}`);
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