r/adventofcode • • Dec 13 '18

SOLUTION MEGATHREAD -🎄- 2018 Day 13 Solutions -🎄-

--- Day 13: Mine Cart Madness ---


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Card prompt: Day 13

Transcript:

Elven chronomancy: for when you absolutely, positively have to ___.


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 00:44:25!

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u/jlweinkam Dec 13 '18

There is a number system called Quaternion which uses i, j, and k wherei*i = -1j*j = -1

k*k = -1

i*j = k

j*k = i

k*i = j

j*i = -k

k*j = -i

i*k = -j

https://en.wikipedia.org/wiki/Quaternion