Advent of Code 2019 Solution Megathread - Day 19: Tractor Beam

Jon Bristow - Dec 19 '19 - - Dev Community

Well, if Mark shows up, we have a way to keep him from tearing us apart now! It's an IntCode program!

Day 19 - The Problem

After escaping from Triton, we took the tractor beam with us because it probably is going to help us tow Santa back in.

First, lets test the pull on this baby. Part 1 is to find the number of squares affected by the tractor beam. We can do this by sending drones out with our IntCode interpreter.

Now that we have the shape of the beam, lets try to find the closest we need to be to grab a sleigh sized object. Sleighs are probably 100x100, so in Part 2 we need to find the coordinates of the first 100*100 box covered by our beam.

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