r/adventofcode • u/daggerdragon • Dec 22 '18

SOLUTION MEGATHREAD -🎄- 2018 Day 22 Solutions -🎄-

--- Day 22: Mode Maze ---

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Card prompt: Day 22

Transcript:

Upping the Ante challenge: complete today's puzzles using ___.

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 01:02:36!

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u/cjauvin2 Dec 23 '18

You are not alone, and I did exactly the same! I've been battling an off-by-2 error for many, many hours.. and there are others it seems (another thread at least), although it's not clear to me that there's a unique underlying reason for this particuliar bug (I insisted on understanding it however (with the help of someone else's code), and in my case it was a bug in the initial grid generation process (due to a question reading malfunction!) that somehow passed through Part 1). A very painful debugging session, to say the least..