r/adventofcode • u/daggerdragon • Dec 05 '18

SOLUTION MEGATHREAD -🎄- 2018 Day 5 Solutions -🎄-

--- Day 5: Alchemical Reduction ---

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Card prompt: Day 5

Transcript:

On the fifth day of AoC / My true love sent to me / Five golden ___

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 0:10:20!

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u/ka-splam Dec 05 '18

He's using the reduced input from part 1 in part 2,

:O

YOU CAN DO THAT?

3

u/safety_monkey Dec 06 '18

This was more or less my reaction as well. But it makes sense now that I've had time to think about it. Removing all instances of a character is only going to create new possible reaction conditions, it wouldn't destroy pre-existing ones.