Advent of Code, day 2 done.

This one felt familiar. I remember previous years having digit grouping problems like this before. I remembered that doing it arithmetically in most cases performs much better than a string comparison, so that's how I approached this initially.

Out of curiosity, I also converted each ID into a string and did a chunk-wise comparison, and it performed really well, taking only about 50% more time than the arithmetic solution. I'm sure my arithmetic solution could be faster, though. I initially used a String to hold the id, then switched to a stack array, but that didn't improve the speed at all. Glibc's allocator is really fast these days.

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It is great that you are all here, we will have a great time together!
\ilucency

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20250609 mb05 Day 02 Wrap

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Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers. ❤️📚

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https://yadl.info/en/notes/2024/book-challenge-day-02

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https://youtu.be/MrVpiSqujT0

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Day 02 Wrap - Portishead February 2024

www.rwnash.info/blog/20240218-mb02-day-02-wrap

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