The Advent of Code approaches once more. Is anybody up for another round?

>>3290
yeah I'll try to make time for the first week at least

Part 1 was easy, but part 2 was probably the hardest day1 puzzle of any year.
I wonder if Eric was trying to trip up ChatGPT with this.

You can still use the leaderboard in the OP for this year's calendar, by the way.

Day 2

>>3291
animated

today's puzzle was pretty fun

C dude here. Last year(2023) I tried Advent of Code again and surprisingly succeeded at first. I did the first day part 1 in around 2 days, then part 2 also around 2 days. I progressed this way doing all problems until day 3 pt1. When I finished it, it was already day 12 or something. I eventually got sidetracked and returned to this a few days ago to finish day 3 pt2. Well, I did the thing and my program apparently works flawlessly, I have it printing every individual value and manually checked for many numbers, but the fucking site gives me "wrong answer". How do I debug this? How to find the one fucking * that is causing me all this trouble? My program is still written in the same style as my 2022 attempt, pure C, parsing every single char at a time. It is too long and contrived and so I wouldn't want to force anybody to wade through the spaghetti swamp. I kindly ask any anon that have done this if they can check my input with their code at at some random lines(binary search recommended) so I can find the fucking line with the faulty exception.

>>3357
Just run my input and say something like:
Up until line 40: Total gear sum value is: XYZ
Up until line 100: Blah, blah, blah.
Just a few lines so I can compare with my results.

>>3357
>How to find the one fucking * that is causing me all this trouble? My program is still written in the same style as my 2022 attempt, pure C, parsing every single char at a time. It is too long and contrived and so I wouldn't want to force anybody to wade through the spaghetti swamp
Have you considered using a different language?

>>3360
Ah, I bet you're the guy on SO who responds to every JS question with "use lodash" (or if this were the 2010s, "use jquery").

>>3357
I looked at the file but it just seems to be the output, and I don't really want to read the AoC text to figure out what this is supposed to be and how to parse that. Probably you're failing on some edge-case, can you just get a solution off the internet, run it on that, and diff the results compared to yours?

The spam filter has claimed yet another innocent victim. I apologize for the inconvenience and removed your ban.

>>3362
Yes, the problem was caused by reading the schematic and writing it without the \n character. This was useful for part 1 and I was building on part 1 to do part 2, but I did part 1 months ago and didn't suspect anything about that.
Here's a link that will help you debug your programs(using a URL shortener because i suspect something in the url triggered the spam filter.)
https://shorturl.at/tRZ56
>>3374
Thanks. First time seeing that ban video, very fun.

>>3357

>>3394
oh, maybe I should've read the rest of the thread...

if you're wondering which year is the most fun to do, it's 2019

>>3457
Not really, I'd just embarrass myself and that doesn't feel either fun or fulfilling.

>>3514
Sorry I replied to the wrong post. I meant that one in /ot/ mentioning Advent of Code 2024.

>>3514
Fair enough, but I will say that writing bad code should only be embarrassing if you're a professional programmer.

How are we feeling, boys?

>>3527
I'm having fun

is that D?

If anybody else would like to participate, please check the OP for our leaderboard ID.

>>3528
>I'm having fun
Good!

>is that D?
It is. In the interest of time I chose the language I'm most familiar with.
I see you're still rocking Clojure. Your solutions are always enviously succinct.

This took embarrassingly long for me, but it works now and I'm glad it does. At some point was contemplating just doing it in Excel really quick, but I'm glad I solved it now.

Very easy to double check with
awk '{sum += $2 - $1} END{print sum}'

Can't post images

>>3530
>In the interest of time I chose the language I'm most familiar with.
yah, same here with clojure at this point
>Your solutions are always enviously succinct
thank you
I also wrote a solution in Dart yesterday, it's obviously a lot less succinct:
http://tohno-chan.com/ot/res/33536.html#43198
I'd like to turn the whole event into a Flutter app and also add animations etc. if I can make the time for it

>>3531
>contemplating just doing it in Excel
I mean, whatever works

You must be really angry with me to forbid posting images, heehee

>>3534
>I'd like to turn the whole event into a Flutter app
I just integrated the clojuredart compiler so I can use my clj solutions for the app instead of solving everything a second time in a worse language

Playing on easy mode again as per the suggestion by >>/ot/43099

>>3541
yeah today was a regex day

day 4 seemed more tedious than anything.

I've been occupied elsewhere, sorry! Glad to see you guys are still trucking along.

The full solution is almost 100LOC, so I left out my basic parser implementation.

>>3536
>I just integrated the clojuredart compiler so I can use my clj solutions for the app
Neat!

>>3546
Day 4 looks familiar to a past event.

And evidently I'm tired because the sum is mislabeled as a product. Oh goodness.

I was busy today with preparing my 3-day trip to my aunt, but the train just left the station without me (from a different platform than it said on my ticket as well as on the schedule when I checked 5 minutes before it arrived) so... I guess I'll have time do some more puzzles this week...

>>3550
You are fated to do AoC.

>>3551
なら、運命に乗るしかない

brute force, but it works

>>3553

Painfully slow, but it works

>>3552
その意気だ

>>3553
Clojure looks like a nice Lisp to use.

>>3554
Nice.

>>3555
>Painfully slow
How slow are we talking?
Picrelated takes 3.65 seconds for my input

>>3556
here's a smarter algorithm I stole from someon on 4chan. This finishes in 40ms on my phone.

>>3556
>How slow are we talking?
My dumb solution runs embarrassingly slow at over half a minute. But my leaderboard clear times for that day are relatively good compared to other days, including today.

today's puzzle was fun because it made me feel nostalgic for the Windows 95 days

if you want a hint for today's puzzle, it's basically a slightly harder version of Lanternfish from the 2021 edition:
https://adventofcode.com/2021/day/6

Eric even put this hint into the example input

And here's my last one for this year. It's starting to get tedious.

>>3563
寂しくなるね
I might not continue this year either, because it looks like there isn't anyone else here who's still participating.

>>3564
This solution is incorrect in the general case. It happens to work for my input but it doesn't work for all valid inputs. For example, it fails on this input:

Button A: X+2, Y+2 Button B: X+1, Y+1 Prize: X=2, Y=2

The correct answer for this should be 2. Press Button B 2 times, spending 2 tokens in total. Pressing Button A 1 time is suboptimal because it costs 1*3 tokens.