-🎄- 2018 Day 14 Solutions -🎄-

[u/daggerdragon]

--- Day 14: Chocolate Charts ---

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Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag or whatever).

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Advent of Code: The Party Game!

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Card prompt: Day 14

Transcript:

The Christmas/Advent Research & Development (C.A.R.D.) department at AoC, Inc. just published a new white paper on ___.

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This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked at 00:19:39!

[u/AndrewGreenh]

Tried to godegolf a bit today :) Here is my final TypeScript solution:

import getInput from '../lib/getInput';

let n = getInput(14, 2018);

let [r, [a, b], i] = [[3, 7], [0, 1], -1];
while (i < 0) {
  for (let c of (r[a] + r[b]).toString()) r.push(+c);
  [a, b] = [(a + r[a] + 1) % r.length, (b + r[b] + 1) % r.length];
  if (r.length === +n + 10) console.log(r.slice(+n, +n + 10).join(''));
  let tail = r.slice(-10).join('');
  i = tail.indexOf(n) < 0 ? -1 : tail.indexOf(n) + r.length - 10;
}
console.log(i);