Day 13: Claw Contraption
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Thank you so much for your explanation! I kind of found some clues looking up perp dot products & other vector math things, but this breaks it down very nicely.
I implemented your solution in rust, and part 2 failed by +447,761,194,259 (this was using signed 64-bit integers,
i64). When I changed it to use signed 64 bit floating-pointf64and checked that the solution forxproduces a whole number it worked.Did you run my python code as is? I would hope it works for everyone. though, I am unsure what the edge cases are, then.