I am doing Advent of Code 2022. (I also did 2021)

I am also learning Haskell.

And I am again coding on Windows with Sublime Text 4 and GitSavvy.

• Oh boy Haskell is going to be a learning curve. Day 1 probably took me an hour to wrap my head around.
• Haskell tried to get a little too cute with operators. The fact that you've got things like . and $ and \ are understandable, but !! to index a list? I have some dignity.
• Things I need to learn instead of just trying permutations until they work:
  1. What's IO? Why do IO functions need to be use with <- instead of let? Is this related to do/return?
  2. . and $ seem to be useful in getting rid of ()s but not always. Are there better ways to do paren-heavy nested calls than the way I'm doing them?
  3. Why are tuples so useless? (Especially with more than 2 elements?)
  4. Should I be creating objects to make code like day 5 a little more scrutable?
• Objects have annoying boilerplate no matter how I do them (with or without named properties). I prefer neither.
• The ... where ... syntax is pretty useful, I should use that more.

• Day 8 was the first really challenging day. My first solution for part 1 was O(n^2) (or maybe worse?) and then part 2 made that infeasible. As of the 9th I still need to go back and redo part 2.
• I struggled with day 12 for a while. Functional programming really forces you to think about problems like this in terms of transformations. I had to wrap my head around what would turn a "step" in the solution into the next "step", and then kinda work from there.
• Around a middle of the month, I acknowledged I was not having as much fun as I wanted, so I've started doing only the days that I feel like doing. It's a tiny failure, but this isn't a job, it's for fun.