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๐ฝ - 2024 DAY 14 SOLUTIONS - ๐ฝ
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Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.
Solution Threads
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console.log('Hello World')
Nim
Part 1: there's no need to simulate each step, final position for each robot is
(position + velocity * iterations) modulo grid
Part 2: I solved it interactively: Maybe I just got lucky, but my input has certain pattern: after 99th iteration every 101st iteration looking very different from other. I printed first couple hundred iterations, noticed a pattern and started looking only at "interesting" grids. It took 7371 iterations (I only had to check 72 manually) to reach an easter egg.
Codeberg Repo