AOC 2022 Day Three

[clandau]

Discussion of solutions for Advent of Code Day 3 here

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[clandau]

JS: https://github.com/clandau/advent-of-code/blob/main/2022/day-3/index.js

I was extremely excited to get to part 2 and be able to reuse a function.

[tkshill]

This looks great! While loops are probably the most efficient way to do the searches I imagine.

[doleraj]

Depends on what you've got for libraries - using something like Linq means you've got GroupBy functionality available which was apparently V Fast for some of my coworkers' solutions.

[danieltott]

sack of data made me laugh out loud 😂

[clandau]

yea I probably could have named the parameter 😆. sack of sacks?

[bogdaaamn]

Wowwww this is so pretty and clean 😭

I love you went for string indexes (I did them in arrays) but I love yours so much better with the while loop and everything!!

[doleraj]

Tried to be at least a LITTLE conscious of runtime today. That let me cheat and use .includes instead of trying to assemble letter groups. https://github.com/doleraj/adventofcode/blob/main/aoc2022/src/day03/index.ts

[doleraj]

Today I also submitted a PR for aocrunner, because the README.md generation wasn't working for me. Turns out it was Windows line endings. 👊

[tkshill]

There is no greater victory than a PR on some OSS that you use. Also, includes and reduce solve like, 90% of all my data parsing conundrums. They are the best!

[bogdaaamn]

Noice, I was proud of myself using if (i % 3 !== 0) { as well. I felt like in school, I don't think I used module in 5 years 😂

[danieltott]

Yep - definitely have to look up modulo any time I need it 😂

[turingtestable]

Definitely my ugliest solution thus far, but it functions! ruby

[tkshill]

Ruby's ugliest code is still prettier than every other language! It makes everything look so easy! Good stuff!

[tkshill]

This is a good question for F#. There's a lot of good built ins in the Collection libraries.

Answer here

Most of my debugging time was because I fail at basic arithmetic.

[clandau]

woah I guess so! nice

[Cerchie]

Is that... 14 lines of code? very nice

[bogdaaamn]

This is getting insane 😭

[bogdaaamn]

(in a good way)

[davidalpert]

F# for day 03

• logic: day03_rucksack_reorganization.fs
• tests: day03_tests.fs#L325-L402

I often write tests to drive out and prove my logic against each step of the example; I've caught more bugs that way... 😎

[davidalpert]

and as usual, @tkshill's solution is significantly more concise and elegant than mine 😉

[tkshill]

I like seeing your F#. Your solution is easier to test, and perhaps expand. You have a real knack for thinking in systems. I'm just lazy and never want to define my own functions (or do any optimisation if the compiler doesn't yell at me) 😂

[tkshill]

If I had done the priority logic your way I wouldn't have spent so much time debugging.

[danimeyer]

Another ruby: https://github.com/danimeyer/advent-of-code/blob/main/2022/3.rb

I am learning all kinds of ruby methods. I still feel like JavaScript is the language I know best, and it is wild how many methods and ways of doing things exist in ruby!

[tkshill]

This is great! Super easy to understand and looks pretty performant

[danimeyer]

I just assume my solutions are terrible and definitely don't take advantage of ruby, so thanks for the confidence boost! But I also feel like I'm learning a lot from reading other people's solutions, which is awesome! And the whole point I'm finally doing Advent of Code this year 🎄

[bogdaaamn]

I love a good readable ruby solution (I don't know ruby)!! Looking good 🎄

[danieltott]

Here's my ts solution!

https://github.com/danieltott/aoc2022/blob/main/src/day03/index.ts

I feel pretty good about the efficiency of these, but I'm sure that I will feel bad about it again after seeing y'alls solutions 😂

[clandau]

ooo ours minds were working the same today :) very similar implementation. nice use of Set!

[tkshill]

One day I'm gonna get you writing Haskell or something. 😄
All your code is so functional. This solution looks awesome.

[doleraj]

Jesus, sub-millisecond responses for both parts? I'm gonna go crawl under a rock now...

[bogdaaamn]

Once again being humbled by Dan's solution 😂 I need to step up my game next week

[danieltott]

@doleraj I feel like those timing results are dependent on the machine and everything too. I wonder if there's a nice way to do automated performance tests on results that are built using aocrunner

[Cerchie]

Again, a just-get-it-done solution but I'm proud of the way I've been taking it step-by-step!

solution 1: https://github.com/Cerchie/adventofcode2022/blob/main/day-03/index.js

solution 2: https://github.com/Cerchie/adventofcode2022/blob/main/day-03/index2.js

[tkshill]

Cool use of filestream. Also, glad you're joining us!

[bogdaaamn]

I like it!! Nice that you used the map for the letter priorities. I was building one for myself, but I quickly googled and found out about charCodeAt()

[bogdaaamn]

Another day, another reducer https://github.com/BogDAAAMN/advent-of-code-2022/blob/main/day-03.js

Honestly not super proud of these either, but it was nice to learn about charCodeAt(). Although it took me a while to understand why it's not working and implement the offset.

[aishwarya-mali]

JS: https://github.com/aishwarya-mali/advent-of-code/blob/main/2022/Day-3/script.js
Part 1 was difficult for me.