24 lines
457 B
TypeScript
24 lines
457 B
TypeScript
import fs from 'node:fs';
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export default function runner(input: string) {
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fs.readFile(`./${input}`, 'utf8', (err, data) => {
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if (err) throw err;
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let count = 0;
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const regex = /mul\((?<a>\d{1,3}),(?<b>\d{1,3})\)/gm;
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let m;
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while ((m = regex.exec(data)) !== null) {
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if (m.index === regex.lastIndex) {
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regex.lastIndex++;
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}
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count += parseInt(m[1]??"")*parseInt(m[2]??"")
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}
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console.log(count)
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})
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} |