38 lines
859 B
TypeScript
38 lines
859 B
TypeScript
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const fs = require('fs');
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const input = fs.readFileSync(__dirname + '/input.txt', 'utf8');
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let stones: Array<string> = input.slice(0, -1).split(' ');
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let sum = 0;
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function splitStones(stones: Array<string>) {
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const newStones: Array<string> = [];
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stones.forEach((stone) => {
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if (stone === '0') {
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newStones.push('1');
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return;
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}
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const len = stone.length;
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if (len % 2 === 0) {
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newStones.push(stone.slice(0, len / 2));
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let last = stone.slice(len / 2);
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newStones.push(''+(parseInt(last)));
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return;
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}
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newStones.push(''+(parseInt(stone) * 2024));
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});
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return newStones;
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}
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let newStones = stones;
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const blinks = 25;
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for (let i = 0; i < blinks; i++) {
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newStones = splitStones(newStones);
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}
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console.log(newStones.length);
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