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Advent of Code 2024 - Historian goes looking for history in all the wrong places (adventofcode.com)

submitted 2 weeks ago by [email protected] to c/[email protected]

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copy pasting the rules from last year's thread:

Rules: no spoilers.

The other rules are made up aswe go along.

Share code by link to a forge, home page, pastebin (Eric Wastl has one here) or code section in a comment.

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[–] [email protected] 2 points 2 weeks ago (1 children)

re: branch cutting

IDK if this is what your issue was, but one thing I ran into was that if you do something like if (current_total >= target) prune(), this can be problematic because if the tail end of the data is 0s and 1s, you exit too early. Basically I would prune strictly when the current total > target.

[–] [email protected] 2 points 2 weeks ago (1 children)

re: branch cutting

thanks for the tip, I looked into it again and I found I was cutting in the wrong place. Fixed now, and halves the time for part 2

[–] [email protected] 2 points 2 weeks ago

We love to see it