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adventofcode/2025/README.md
2025-12-04 08:16:42 +01:00

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# Advent of Code 2025
## Introduction
This is mostly so I can keep notes on my progress, in single markdown format so I can easily add it to my Silverbullet journal afterwards.
## Lessons from first day
1. Read! Oh that brain of mine, skipping half the things and missing things like count clicks not end point dial
2. Setup a proper test, make a smaller input test that you know the answer to to check the code
## Lessons second day
1. More git commits!
2. Clear history so you don't accidentally cp day1 to day2 during testing. (Undo FTW)
3. Put the central check (Serial Valid/Invalid) in a function so it's easy to add self checks in the beginning
## Lessons third day
1. Can't win em all
## Lessons fourth day
1. Need about an hour to do both, but also speeding up