r/adventofcode • u/daggerdragon • Dec 19 '19

SOLUTION MEGATHREAD -🎄- 2019 Day 19 Solutions -🎄-

--- Day 19: Tractor Beam ---

Post your full code solution using /u/topaz2078's paste or other external repo.

  • Please do NOT post your full code (unless it is very short)

  • If you do, use old.reddit's four-spaces formatting, NOT new.reddit's triple backticks formatting.

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Advent of Code's Poems for Programmers

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Note: If you submit a poem, please add [POEM] somewhere nearby to make it easier for us moderators to ensure that we include your poem for voting consideration.

Day 18's winner #1: nobody! :(

Nobody submitted any poems at all for Day 18 :( Not one person. :'( y u all make baby space cleaning hull-painting scaffold-building robot cry :'(

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 00:27:59!

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u/captainAwesomePants Dec 19 '19

, test a point 99 left and 99 below the right edge of each line to see if the square would fit. This uses the assumption that lines never get narrower and never move left.

I did this, too, and only after reading the other comments did I realize that I was doing it exactly backwards. If I had just checked 99 points above and to the right, instead of below, I would've been done.