If you do the problems, then compare your solution to the most ergonomic ones from reddit.com/r/adventofcode/?f=flair... you quickly become much better.
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nthistle and johnathonpaulson, both who regularly finished top 10 in 2022, recorded all their solutions live and uploaded to youtube:
If you do the problems, then compare your solution to the most ergonomic ones from reddit.com/r/adventofcode/?f=flair... you quickly become much better.