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man... day17 has been a struggle for me.. i have managed to implement A* but the solve still takes about 2 minutes for me.. not sure how some are able to get it under 10 seconds.
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@xuu@txt.sour.is That was one of the horror puzzles where I had to look for help. 🥴 I modelled my solution after this: https://www.youtube.com/watch?v=2pDSooPLLkI (I can’t explain it better than the video anyway.) It takes a second on my machine and that’s with my own hashmap implementation which is probably not the fastest one.