30 lines
851 B
JavaScript
30 lines
851 B
JavaScript
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#!/bin/node
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const fs = require('fs');
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fs.readFile('input.txt', (err, data) => {
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const passwords = data.toString().split('\n').filter(l => l.length > 0);
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let q1 = 0, q2 = 0;
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for (const [format, password] of passwords.map(line => line.split(':'))) {
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const [occurrences, letter] = format.split(' ');
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const [min, max] = occurrences.split('-').map(n => parseInt(n));
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console.log(min, max, letter, password);
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// q1
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let count = 0;
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for (let j = 0; j < password.length; j++) {
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if (password[j] === letter) {
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count++;
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}
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}
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if (count >= min && count <= max) q1++;
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// q2
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if (password[min] === letter && password[max] !== letter || password[min] !== letter && password[max] === letter) q2++;
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}
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console.log(q1, q2);
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});
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