#advent-of-code | Python | Page 51

rapid wolf Dec 21, 2021, 10:06 PM

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a recursion scheme is a way to describe a certain way of processing a recursive data structure in a general way

humble copper Dec 21, 2021, 10:06 PM

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(||looking at you, string-based solution for day 18||)

low condor Dec 21, 2021, 10:07 PM

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||day 18 counts - the calculator from last year does as well||

humble copper Dec 21, 2021, 10:07 PM

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what day was that

low condor Dec 21, 2021, 10:07 PM

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very satisfying to see the various ways people attack the same problem

sonic silo Dec 21, 2021, 10:08 PM

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ngl

low condor Dec 21, 2021, 10:08 PM

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funnily enough, the same day

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day 18

sonic silo Dec 21, 2021, 10:08 PM

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the o2/co2 day was kinda fun

low condor Dec 21, 2021, 10:08 PM

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it can't just be a coincidence that two calculator-esque questions were on the same days on subsequent years, right?

woven sable Dec 21, 2021, 10:09 PM

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||2019 d18 - i'm looking at you, eval||

low condor Dec 21, 2021, 10:09 PM

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anyway, yeah, very much enjoyed seeing solutions to 2020 d18

sonic silo Dec 21, 2021, 10:10 PM

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woven sable ||2019 d18 - i'm looking at you, `eval`||

how curious

low condor Dec 21, 2021, 10:10 PM

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woven sable ||2019 d18 - i'm looking at you, `eval`||

pretty sure you mean ||2020||

sonic silo Dec 21, 2021, 10:10 PM

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i jsut noticed

woven sable Dec 21, 2021, 10:10 PM

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low condor pretty sure you mean ||2020||

oops, yea

sonic silo Dec 21, 2021, 10:10 PM

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||year 2020 day 19 very much could be eval'd||

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at least so i remember

low condor Dec 21, 2021, 10:10 PM

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2019 was my arch nemesis - keys and doors

rapid wolf Dec 21, 2021, 10:11 PM

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yeah, still don't have a nice solution for d18 of 2019

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I think I have a working one, but its super slow

low condor Dec 21, 2021, 10:11 PM

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sonic silo ||year 2020 day 19 very much could be eval'd||

||not directly, but I did enjoy seeing the solutions were people changed the string and then eval-d it ||

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such solutions I call "jank solutions"

rapid wolf Dec 21, 2021, 10:12 PM

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does my bingo solution of using a sed script to produce a mathematical expression that evaluates to the result count?

low condor Dec 21, 2021, 10:12 PM

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||creating a class to hijack the dunder methods according to the order of operation they need, then using a string replace to change the operator and insert the class invocation|| was my favourite

low condor Dec 21, 2021, 10:13 PM

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rapid wolf does my bingo solution of using a sed script to produce a mathematical expressio...

I tend to consider solutions that work directly on the string as jank, yes 😛

humble copper Dec 21, 2021, 10:13 PM

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what day was the co2 scrubber day

sonic silo Dec 21, 2021, 10:13 PM

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low condor ||not directly, but I did enjoy seeing the solutions were people changed the str...

||yeah thats what im talking about||

rapid wolf Dec 21, 2021, 10:13 PM

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humble copper what day was the co2 scrubber day

https://adventofcode.com/2021/day/14

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oh wait, wrong one

sleek cave Dec 21, 2021, 10:15 PM

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day 18 took me 5.5 hours. never looking back again lmao
now i've already achieved my goal, so every single puzzle i solve now is a bonus

rapid wolf Dec 21, 2021, 10:15 PM

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day 3

sleek cave Dec 21, 2021, 10:15 PM

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day 20's part 2 is kinda bruh

noble skiff Dec 21, 2021, 10:15 PM

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i felt like 19 was like that too

low condor Dec 21, 2021, 10:16 PM

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when the part 1 of a day is too easy, you just know part 2 is going to be crazy

noble skiff Dec 21, 2021, 10:16 PM

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figured out the main conceptual "trick" in 19 immediately, but nailing down all the crap, especially the rotation related stuff, was annoying.
And harder to visualize bugs compared to 18.

sonic silo Dec 21, 2021, 10:16 PM

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y2020d20 type beat

rapid wolf Dec 21, 2021, 10:17 PM

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day 19 honestly looked a lot harder than it was. Though my solution was kind of bad

low condor Dec 21, 2021, 10:17 PM

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funnily enough, I found 18 harder to visualise bugs. Because my code was breaking on the complex examples but those were not broken down into steps, so it was a pain to figure out

noble skiff Dec 21, 2021, 10:17 PM

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maybe not so much hardness, just very tedious code to write

rapid wolf Dec 21, 2021, 10:17 PM

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18 I had fun solving for the second time in haskell

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with ||recursion||

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as is proper

low condor Dec 21, 2021, 10:18 PM

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sonic silo y2020d20 type beat

everyone complains about this one, but I never found this one difficult, just tedious. I always knew I could do it, just that I'd need the entire weekend-day to do so

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on the other hand, I struggled with one that most people did not that year - 2020 d23 part 2

noble skiff Dec 21, 2021, 10:19 PM

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the problem is that AoC isn't mandatory, so if something is tedious to do, I put it off, and stretch it out even more

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that's what happened with 19; at some point I just put off writing some 20 lines of code for hours, even did day 20 before 19

low condor Dec 21, 2021, 10:20 PM

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more people have completed today's solution compared to d19

noble skiff Dec 21, 2021, 10:20 PM

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what's the day that the fewest people completed

low condor Dec 21, 2021, 10:21 PM

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at the moment, for this year, still d19

woven sable Dec 21, 2021, 10:21 PM

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hmm, ||P2 today|| has been the hardest for me so far tied with D19

sonic silo Dec 21, 2021, 10:21 PM

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low condor everyone complains about this one, but I never found this one difficult, just te...

just like y2021d19 tbh

noble skiff Dec 21, 2021, 10:21 PM

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okay, glad I'm not the only one who thought 19 was the most annoying so far 😉

sonic silo Dec 21, 2021, 10:22 PM

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hmm

rapid wolf Dec 21, 2021, 10:22 PM

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yeah, looking at things, short of my early gurklang solutions, d19 is by far the most code I wrote for a specific day.

sonic silo Dec 21, 2021, 10:22 PM

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^

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hmm

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i wonder what kind of puzzle we havent touched upon yet

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this year

noble skiff Dec 21, 2021, 10:22 PM

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my 18 was actually longer

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but a lot of that code was pretty similar to each other, and not that hard to get right, I just didn't see an easy way to factor it out

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like next vs previous on a binary tree with backlinks

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didn't take me long to do, but it's a decent number of lines, and then you copy and paste and swap left-right

rapid wolf Dec 21, 2021, 10:23 PM

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my 18 is quite a bit shorter, but I did the ||token stream|| solution

noble skiff Dec 21, 2021, 10:23 PM

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yeah I figured

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with the recursive solutions, you end up writing quite a few recursive functions that are not completely trivial

low condor Dec 21, 2021, 10:24 PM

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Yeah if I hadn't done the ||flat|| solution I would have found d18 much tougher

rapid wolf Dec 21, 2021, 10:24 PM

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though my ||singly linked binary tree|| solution is also shorter, though that's probably just haskell being haskell

noble skiff Dec 21, 2021, 10:24 PM

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probably; i'm not actually even sure how that solution looks tbh lol

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all the ways that I could see to do it without backlinks seemed worse than backlinks

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I'm going to orlando for vacation stuff with the wife and kids now, so basically not going to be doing much over the next 5 days and will probably fall way behind 🙂

rapid wolf Dec 21, 2021, 10:27 PM

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essentially, I return ||an optional value of type (left value to add, new subtree, right value to add)||, then use the ||call tree to keep track of where to insert the value on either side||

noble skiff Dec 21, 2021, 10:28 PM

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yeah, I'd probably need to write it out in a non-Haskell language to really understand it

hollow wharf Dec 21, 2021, 10:33 PM

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D18 was the most fustrating

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D19 was challenging but not that hard

rapid wolf Dec 21, 2021, 10:34 PM

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hollow wharf Dec 21, 2021, 10:34 PM

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I think D21P2 wasn't a whole lot tbh

rapid wolf Dec 21, 2021, 10:34 PM

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this is kind of pretty for handling the conditions

robust heart Dec 21, 2021, 10:35 PM

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is 15 hard?

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I looked at the maze and it's not really obvious to find the solution at first glance

hollow wharf Dec 21, 2021, 10:36 PM

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depends on your background

humble copper Dec 21, 2021, 10:36 PM

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robust heart is 15 hard?

depends

hollow wharf Dec 21, 2021, 10:36 PM

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if you have never touched ||pathfinding||, yes, it may be a little hard

rapid wolf Dec 21, 2021, 10:36 PM

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if you are familiar with ||graph theory||, it is rote, if not, it is an interesting challenge

sleek cave Dec 21, 2021, 10:38 PM

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LMFAO I COMPLETELY OVERTHOUGHT DAY 20

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it was a relaxing puzzle

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naive solution (||actually simulating the enhancements one at at time|| takes only 13 seconds)

hollow wharf Dec 21, 2021, 10:39 PM

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yes lol

sleek cave Dec 21, 2021, 10:39 PM

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although i will try to find a better solution later on

hollow wharf Dec 21, 2021, 10:39 PM

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there isn't really a better solution

sleek cave Dec 21, 2021, 10:39 PM

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just not today. Soon ™️

sleek cave Dec 21, 2021, 10:39 PM

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hollow wharf there isn't really a better solution

wait actually?

hollow wharf Dec 21, 2021, 10:39 PM

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yeah

sleek cave Dec 21, 2021, 10:39 PM

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||so the optimal solution is to just simulate the enhancements?||

rapid wolf Dec 21, 2021, 10:39 PM

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I do think you could use one of the fancy ||cellular automata|| algorithm, like ||hashlife or quicklife||

hollow wharf Dec 21, 2021, 10:39 PM

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the best you can do is ||using sets instead of lists||

robust heart Dec 21, 2021, 10:40 PM

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hollow wharf if you have never touched ||pathfinding||, yes, it may be a little hard

Yeah I'm not too familiar with that concept

hollow wharf Dec 21, 2021, 10:40 PM

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which shaves off like a single second

sleek cave Dec 21, 2021, 10:40 PM

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hollow wharf which shaves off like a single second

oh wow, i didn't know that. why are sets faster than lists?

hollow wharf Dec 21, 2021, 10:40 PM

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you don't allocate as much and resize on the fly

sleek cave Dec 21, 2021, 10:40 PM

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rapid wolf I do think you could use one of the fancy ||cellular automata|| algorithm, like ...

ah, well i'm not familiar at all with cellular automata

hollow wharf Dec 21, 2021, 10:41 PM

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although that's why you should pre-allocate your 2D arrays

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if you do there is no real advantage to sets

low condor Dec 21, 2021, 10:41 PM

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robust heart is 15 hard?

if you ||use a library|| then it's not hard at all

sleek cave Dec 21, 2021, 10:41 PM

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hollow wharf although that's why you should pre-allocate your 2D arrays

i did this, does this count as preallocation? ||new = [[0 for _ in range(depth + 2)] for _ in range(width + 2)]||

hollow wharf Dec 21, 2021, 10:41 PM

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yes

sleek cave Dec 21, 2021, 10:41 PM

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oh then woohoo for me

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time to clean up the code

rapid wolf Dec 21, 2021, 10:42 PM

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I think the fastest solutions were just ||bigxbig arrays that just got slightly wrong as time went on, but were large enough that the information wouldn't reach the area of interest in time||

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||or maybe they shrank with invalid values||

sleek cave Dec 21, 2021, 10:43 PM

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rapid wolf I think the fastest solutions were just ||bigxbig arrays that just got slightly ...

lol i don't understand that, ||are you essentially deleting unuseful info?||

hollow wharf Dec 21, 2021, 10:43 PM

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it wasn't a hard challenge

sleek cave Dec 21, 2021, 10:43 PM

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no it wasn't at all

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i completely overthought the whole thing at first

robust heart Dec 21, 2021, 10:43 PM

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low condor if you ||use a library|| then it's not hard at all

I'm interested in udnerstanding the concept + approach

hollow wharf Dec 21, 2021, 10:43 PM

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the hardest part was figuring out in which order you should look at neighbours

rapid wolf Dec 21, 2021, 10:43 PM

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the ||speed of light is 1||, so you just need enough ||space to delete all the leftovers without affecting the relevant simulation||

robust heart Dec 21, 2021, 10:43 PM

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Especially if they ask about it in coding interviews

low condor Dec 21, 2021, 10:44 PM

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robust heart I'm interested in udnerstanding the concept + approach

||There's a Python library called networkx that will do d15 for you, both parts||

sleek cave Dec 21, 2021, 10:44 PM

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rapid wolf the ||speed of light is 1||, so you just need enough ||space to delete all the l...

leftovers?

rapid wolf Dec 21, 2021, 10:44 PM

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I like my solution, just ||generate files and run the automaton in golly||

low condor Dec 21, 2021, 10:44 PM

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||Just feed the input in and request the shortest path distance||

rapid wolf Dec 21, 2021, 10:44 PM

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sleek cave leftovers?

||the borders will generally cause some error, you have to somehow deal with that||

low condor Dec 21, 2021, 10:44 PM

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My solution for d15: ||https://paste.pythondiscord.com/bugexumifa.py||

sleek cave Dec 21, 2021, 10:44 PM

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rapid wolf ||the borders will generally cause some error, you have to somehow deal with tha...

||oh, i just used default values that alternate each iteration (due to the infinity toggling)||

rapid wolf Dec 21, 2021, 10:45 PM

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sleek cave ||oh, i just used default values that alternate each iteration (due to the infin...

||that also works||

hollow wharf Dec 21, 2021, 10:45 PM

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D15: ||https://github.com/Akarys42/aoc-2021/blob/main/day_15/part_1.py||

robust heart Dec 21, 2021, 10:45 PM

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low condor ||There's a Python library called networkx that will do d15 for you, both parts|...

||That ones comes with scipy. I haven't tested it on the caves yet||

low condor Dec 21, 2021, 10:45 PM

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robust heart ||That ones comes with scipy. I haven't tested it on the caves yet||

||It takes time and memory, but you save on developer time lol||

rapid wolf Dec 21, 2021, 10:46 PM

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I just ||handrolled dijkstra|| for d15. Nothing ||too elaborate||.

hollow wharf Dec 21, 2021, 10:46 PM

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same, with ||A*||

low condor Dec 21, 2021, 10:47 PM

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The regular solution isn't difficult by any stretch, and is faster and less memory intensive, but ||you can't beat a single function call for simplicity||

rapid wolf Dec 21, 2021, 10:48 PM

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yeah, I was just curious if I still remembered the algo

sleek cave Dec 21, 2021, 10:49 PM

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rapid wolf I just ||handrolled dijkstra|| for d15. Nothing ||too elaborate||.

||can't-implement-dijkstra moment||
also some say that ||adding a manhattan distance heuristic for a* doesn't save many searches in this problem. is it true?||

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speaking of which, i shall re-attempt day 15 now

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i just don't know why my ||a* and heap|| is so slow

rapid wolf Dec 21, 2021, 10:50 PM

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yeah, I found ||A* to be a minor improvement at best||

low condor Dec 21, 2021, 10:50 PM

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sleek cave i just don't know why my ||a* and heap|| is so slow

I doubt it's as slow as my solution 🙂 how long does it take for you?

rapid wolf Dec 21, 2021, 10:51 PM

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next year I may do less than 1 second time limit for all days just for some extra challenge

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maybe finally learn rust properly

sleek cave Dec 21, 2021, 10:51 PM

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low condor I doubt it's as slow as my solution 🙂 how long does it take for you?

over an hour, so out of sympathy (but more realistically, impatience) i burned it down

low condor Dec 21, 2021, 10:51 PM

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sleek cave over an hour, so out of sympathy (but more realistically, impatience) i burned i...

ouch maybe not then XD

sleek cave Dec 21, 2021, 10:51 PM

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i didn't implement it correctly

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so i'm retrying today lol

low condor Dec 21, 2021, 10:52 PM

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I thought my solution at 6.6 secs || with the library|| would be the slowest

sleek cave Dec 21, 2021, 10:52 PM

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||library one-liner lmao||

noble skiff Dec 21, 2021, 10:53 PM

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yall know that when you scroll up, like 50% of the text on this channel is blotted out right 🤣

low condor Dec 21, 2021, 10:53 PM

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Advent of REDACTED

noble skiff Dec 21, 2021, 10:53 PM

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probably people should move their convos to the spoilers channel more often, it's less effort

low condor Dec 21, 2021, 10:53 PM

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sleek cave ||library one-liner lmao||

|| Well, Black formatted it for multiple lines || 🙂

sleek cave Dec 21, 2021, 10:53 PM

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low condor Advent of REDACTED

i was about to say that lemon_angrysad

robust heart Dec 21, 2021, 10:53 PM

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I wanted to use AOC to learn C or C++ but I think I'll finish the thought process in Python first before adding extra steps like malloc and such

noble skiff Dec 21, 2021, 10:53 PM

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in terms of learning C++ properly, I'd pretty strongly recommend against that

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if it's just for fun then it doesn't matter of course

hollow wharf Dec 21, 2021, 10:54 PM

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low condor I thought my solution at 6.6 secs || with the library|| would be the slowest

for D15?

low condor Dec 21, 2021, 10:54 PM

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hollow wharf for D15?

yup

hollow wharf Dec 21, 2021, 10:54 PM

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which part

low condor Dec 21, 2021, 10:54 PM

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both together

robust heart Dec 21, 2021, 10:54 PM

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noble skiff in terms of learning C++ properly, I'd pretty strongly recommend against that

I heard C++ wasn't very suited for that kind of algorithm unlike C

noble skiff Dec 21, 2021, 10:55 PM

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err C++ is definitely better suited for AoC than C

hollow wharf Dec 21, 2021, 10:55 PM

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we're at like 8s for a pure python A* implementation, so that's not so bad

noble skiff Dec 21, 2021, 10:55 PM

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having a hash table available in the standard library alone, is an automatic win

hollow wharf Dec 21, 2021, 10:55 PM

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AoC in C sounds like death

noble skiff Dec 21, 2021, 10:55 PM

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yeah, I wouldn't enjoy that

robust heart Dec 21, 2021, 10:56 PM

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noble skiff having a hash table available in the standard library alone, is an automatic win

I suppose we have to construct everything from scratch with vanilla C using the structs...

hollow wharf Dec 21, 2021, 10:56 PM

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I think Python is really excellent for the AoC

robust heart Dec 21, 2021, 10:56 PM

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Python is comfy

noble skiff Dec 21, 2021, 10:56 PM

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well, writing a hash table from scratch is no joking endeavor

hollow wharf Dec 21, 2021, 10:56 PM

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maybe you could port some of the code to another language if you really want fast solutions

noble skiff Dec 21, 2021, 10:56 PM

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that would be a harder question than most things in AoC.

hollow wharf Dec 21, 2021, 10:56 PM

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but like I'm happy with anything that runs in less than five minutes

noble skiff Dec 21, 2021, 10:57 PM

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and then in C, you don't have generics, so you'd have to copy and paste your imlementation every time you wanted to change the key type, or else learn how to use macros

hollow wharf Dec 21, 2021, 10:57 PM

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I think my headmates have higher expectations though

low condor Dec 21, 2021, 10:57 PM

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I'm happy so long as I get the answer 😛

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I am not above waiting an hour if I must (though obv want to avoid that)

robust heart Dec 21, 2021, 10:57 PM

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That's why I decided to do write on Jupyter Notebooks for 2020 and opt for scripts + testing this year

sleek cave Dec 21, 2021, 11:13 PM

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lmao perhaps this is why my ||a*|| is so crappy

minor cave Dec 22, 2021, 12:16 AM

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<@&831776746206265384>

ashen lichen Dec 22, 2021, 12:16 AM

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!pban 639198305854947339 cya

marsh currentBOT Dec 22, 2021, 12:16 AM

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:incoming_envelope: :ok_hand: applied purge ban to @undone osprey permanently.

dense herald Dec 22, 2021, 1:37 AM

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I'm stuck on day 19. I can't figure out how to iterate all the different orientations a scanner could have. I can visualize what they are, I just can't think of how to step through them without having a list of pre-computed rotation matrices. Can someone give me a hint?

humble copper Dec 22, 2021, 2:11 AM

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dense herald I'm stuck on day 19. I can't figure out how to iterate all the different orienta...

||maybe go on a site like geogebra which has a 3d graphing tool, place a point in the graph, and rotate the graph. then, try to figure out how to take the xyz coordinate of that point and switch variables around to get to that new point that you get from rotating the graph||

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in short, ||for each point in the scanned points, swap the values around||

dense herald Dec 22, 2021, 2:15 AM

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humble copper ||maybe go on a site like geogebra which has a 3d graphing tool, place a point i...

sure, ||you'd end up with a list of a bunch of different combinations of the coordinates, but i'm wondering if there's a way to iterate them without creating that entire list by manually||

humble copper Dec 22, 2021, 2:17 AM

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||as far as i know, such a method doesnt exist. but its not a huge list to implement, and it runs in a reasonable amount of time for both parts||

dense herald Dec 22, 2021, 2:18 AM

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ok, thanks

bright peak Dec 22, 2021, 2:37 AM

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Hey guys do I ask for code help here?

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I just need help getting a module.

bright haven Dec 22, 2021, 2:37 AM

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bright peak I just need help getting a module.

this channel is about Advent of Code. #python-discussion is good for other questions.

bright peak Dec 22, 2021, 2:38 AM

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Sounds good thanks.

heavy bone Dec 22, 2021, 2:51 AM

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heyo

muted aurora Dec 22, 2021, 4:09 AM

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I've actually also done every single challenge also in C

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I'm not going to lie I've enjoyed it a lot

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It's sort of a different puzzle on its own, how to get stuff working without all the conveniences of Python

muted aurora Dec 22, 2021, 4:10 AM

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hollow wharf AoC in C sounds like death

But maybe I just hate myself 😅

peak dock Dec 22, 2021, 4:11 AM

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well yea thats just programming in a nutshell

sonic silo Dec 22, 2021, 4:54 AM

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C doesnt sound that bad in AoC

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it is if you wanna score tho

hidden copperBOT Dec 22, 2021, 5:00 AM

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<@&518565788744024082> Good morning! Day 22 is ready to be attempted. View it online now at https://adventofcode.com/2021/day/22. Good luck!

sinful pawn Dec 22, 2021, 5:00 AM

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oops

stable heron Dec 22, 2021, 5:00 AM

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😩

crystal shard Dec 22, 2021, 5:01 AM

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heh 420

random solar Dec 22, 2021, 5:05 AM

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.aoc leave

hidden copperBOT Dec 22, 2021, 5:05 AM

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Command Help

**```
.adventofcode

**Can also use:** `aoc`

*All of the Advent of Code commands.*

**Subcommands:**
**`about `**
*Learn about Advent of Code*
**`countdown `**
*Return time left until next day*
**`join `**
*Learn how to join the leaderboard (via DM)*
**`link [aoc_name]`**
*Tie your Discord account with your Advent of Code name.*
**`subscribe `**
*Notifications for new days*
**`unlink `**
*Tie your Discord account with your Advent of Code name.*
**`unsubscribe `**
*Notifications for new days*

random solar Dec 22, 2021, 5:05 AM

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.aoc unlink

hidden copperBOT Dec 22, 2021, 5:05 AM

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random solar .aoc unlink

You don't have an Advent of Code account linked.

random solar Dec 22, 2021, 5:05 AM

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.aoc unsubscribe

hidden copperBOT Dec 22, 2021, 5:05 AM

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Hey, you don't even get any notifications about new Advent of Code tasks currently anyway.

humble copper Dec 22, 2021, 5:11 AM

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i wouldnt consider myself very smart, but cant i just ||find the number of on cuboids as if it were a 1d list, then cube that||?

quick glacier Dec 22, 2021, 5:11 AM

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@random solar I think that's what #aoc-bot-commands is for.

random solar Dec 22, 2021, 5:11 AM

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Oo , sorry

quick glacier Dec 22, 2021, 5:11 AM

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^^

humble copper Dec 22, 2021, 5:14 AM

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humble copper i wouldnt consider myself very smart, but cant i just ||find the number of on cu...

nvm i just realized ||instructions arent always perfect cubes||

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oh well today doesnt seem too difficult

pine tiger Dec 22, 2021, 5:30 AM

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jesus

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what the hell

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is p2

pine tiger Dec 22, 2021, 5:30 AM

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humble copper oh well today doesnt seem too difficult

famous last words

humble copper Dec 22, 2021, 5:31 AM

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ok im scared

late frigate Dec 22, 2021, 6:28 AM

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bruh today was not a good day

unkempt token Dec 22, 2021, 6:31 AM

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I haven't joined yet, but after signing up, how do i join this servers leaderboard ?

woven solar Dec 22, 2021, 6:33 AM

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unkempt token I haven't joined yet, but after signing up, how do i join this servers leaderboa...

Do .aoc join in #aoc-bot-commands, and the bot will DM you a private leaderboard code, which you can enter in Leaderboard - Private Leaderboard

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(there's many more than one leaderboard because everyone won't fit into one, hence separate codes for separate people. The .aoc lb and .aoc daystar commands, however, aggregate all these leaderboards into one.)

unkempt token Dec 22, 2021, 6:40 AM

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ok so I am trying out the 1st puzzle

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so you don't run the code on the website

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how do we get the input for our program then

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Yea I pressed it, it's just text there, so i gotta copy and paste it to a text file and create a program that reads from it and does stuff ?

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👍 .

woven solar Dec 22, 2021, 6:47 AM

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either you copypaste it, or you save it as a file, or you can have your program download it (if you know how to do http requests)

unkempt token Dec 22, 2021, 6:49 AM

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haha fine, so the site needs just my answer, not code

woven solar Dec 22, 2021, 6:51 AM

#

yup, it's a language-agnostic challenge for this reason

#

in theory you can solve some days without programming at all, if you're willing to do a ton of calculations on a piece of paper, lol

unkempt token Dec 22, 2021, 6:55 AM

#

ha, so what determines our scores and pos on the leaderboard ? time taken to solve it ? and if someone joins late, can he still top the lb, because the relative time taken was less

somber crow Dec 22, 2021, 6:56 AM

#

its time from puzzle release

woven solar Dec 22, 2021, 6:56 AM

#

and if someone joins late, can he still top the lb, because the relative time taken was less
nope

#

that'd be impossible to do - what would stop anyone from misleading about when they started solving?

#

so it's just from start of challenge.

somber crow Dec 22, 2021, 6:57 AM

#

woven solar that'd be impossible to do - what would stop anyone from misleading about when t...

or just getting someones script from github

#

it would theorhetically be possible to have a script download someones scipt and solve in a matter of seconds if you could join late and have the scoring be relative

unkempt token Dec 22, 2021, 6:59 AM

#

yea, i see

somber crow Dec 22, 2021, 7:00 AM

#

if you have friends who are also joining late you could make a private leaderboard with them, otherwise its just for fun

#

there are also 3 days left excluding today this year

delicate plank Dec 22, 2021, 7:34 AM

#

.aoc subscribe

hidden copperBOT Dec 22, 2021, 7:34 AM

#

Hey, you already are receiving notifications about new Advent of Code tasks. If you don't want them any more, run .adventofcode unsubscribe instead.

delicate plank Dec 22, 2021, 7:34 AM

#

.aoc unsubscribe

hidden copperBOT Dec 22, 2021, 7:34 AM

#

Okay! You have been unsubscribed from notifications about new Advent of Code tasks.

delicate plank Dec 22, 2021, 7:34 AM

#

🙂

iron reef Dec 22, 2021, 8:50 AM

#

.aoc lb

hidden copperBOT Dec 22, 2021, 8:50 AM

#

:x: Please use #aoc-bot-commands for aoc commands instead.

hollow wharf Dec 22, 2021, 9:26 AM

#

Yup, it is preetttyyy painful

eternal surge Dec 22, 2021, 9:27 AM

#

.aoc

hidden copperBOT Dec 22, 2021, 9:27 AM

#

Command Help

**```
.adventofcode

**Can also use:** `aoc`

*All of the Advent of Code commands.*

**Subcommands:**
**`about `**
*Learn about Advent of Code*
**`countdown `**
*Return time left until next day*
**`join `**
*Learn how to join the leaderboard (via DM)*
**`link [aoc_name]`**
*Tie your Discord account with your Advent of Code name.*
**`subscribe `**
*Notifications for new days*
**`unlink `**
*Tie your Discord account with your Advent of Code name.*
**`unsubscribe `**
*Notifications for new days*

eternal surge Dec 22, 2021, 9:27 AM

#

what's advent of code?

#

.aoc about

hidden copperBOT Dec 22, 2021, 9:28 AM

#

Advent of Code

https://adventofcode.com/2021

What is Advent of Code?

Advent of Code (AoC) is a series of small programming puzzles for a variety of skill levels, run every year during the month of December.

They are self-contained and are just as appropriate for an expert who wants to stay sharp as they are for a beginner who is just learning to code. Each puzzle calls upon different skills and has two parts that build on a theme.

How do I sign up?

Sign up with one of these services:

Auth Services

GitHub
Google
Twitter
Reddit

How does scoring work?

For the global leaderboard, the first person to get a star first gets 100 points, the second person gets 99 points, and so on down to 1 point at 100th place.

For private leaderboards, the first person to get a star gets N points, where N is the number of people on the leaderboard. The second person to get the star gets N-1 points and so on and so forth.

Join our private leaderboard!

Come join the Python Discord private leaderboard and compete against other people in the community! Get the join code using .aoc join and visit the private leaderboard page to join our leaderboard.

mossy stream Dec 22, 2021, 10:36 AM

#

I see what they want us to do for today

#

but who said naive wasn't going to work, right? pained_smile

mossy stream Dec 22, 2021, 10:53 AM

#

mossy stream but who said naive wasn't going to work, right? <:pained_smile:66344658649979295...

fish: Job 1, 'time python day_22/part_2.py' terminated by signal SIGKILL (Forced quit)

#

yeah

#

have you noticed there are 420 instructions for today?

proud cosmos Dec 22, 2021, 12:21 PM

#

Python being weird

#

confused

#

nvm i'm dumb

#

Time to try and be smart and break it

woven sable Dec 22, 2021, 1:06 PM

#

Another hard P2 today?

rapid wolf Dec 22, 2021, 1:07 PM

#

kind of

#

here it's pretty obvious what p2 will be just from the input

proud cosmos Dec 22, 2021, 1:17 PM

#

yeah I'm already struggling wiht part1 since I am kinda guessing what part 2 is

#

but who knows

torpid karma Dec 22, 2021, 1:26 PM

#

If someone could give me a hint for day 15 part 1 that would be nice. I want a hint not a solution, i feel like i am so close but all my ideas have problems with them.

woven solar Dec 22, 2021, 1:54 PM

#

torpid karma If someone could give me a hint for day 15 part 1 that would be nice. I want a h...

It's pathfinding - ||Dijkstra, for example||, no hidden traps there. If it doesn't work, ||make sure you're consider steps up and to the left||

sleek cave Dec 22, 2021, 1:54 PM

#

||calculating 3D overlaps... bruh||

woven solar Dec 22, 2021, 1:55 PM

#

still better than Beacon Scanner 🥴

sleek cave Dec 22, 2021, 1:55 PM

#

lmao

#

||i might try to come up with a mathematical solution by playing with 2D rectangles first||

woven oriole Dec 22, 2021, 1:56 PM

#

||then making a generalized result for nth D 🥴 ||

sleek cave Dec 22, 2021, 1:56 PM

#

||because there is no way I'm iterating through sets of millions of 3d coords and finding overlaps||

#

but yeah, I really love aoc

#

I've never even touched working with 3d before (nor parsing, nor pathfinding, nor recursion in an actual project)

#

So these puzzles are amazing

sleek cave Dec 22, 2021, 1:59 PM

#

mossy stream `fish: Job 1, 'time python day_22/part_2.py' terminated by signal SIGKILL (Force...

lmao

proud cosmos Dec 22, 2021, 2:03 PM

#

I've alwso been doing some weird stuff

#

I think I am close to a pretty nice solution tbh

#

But I'm missing like one step

proud cosmos Dec 22, 2021, 2:20 PM

#

Turns out I was missing more steps

#

:)

#

I'm overcomplicating this for sure

restive imp Dec 22, 2021, 2:53 PM

#

Are there any example images for Day 20 (Part 1) ?
My code works for the official example, but not the actual input. Another example might help me debug it.

woven solar Dec 22, 2021, 2:55 PM

#

restive imp Are there any example images for Day 20 (Part 1) ? My code works for the officia...

The main caveat is that in the actual input, ||first character of the algorithm is # unlike the example||.

earnest forge Dec 22, 2021, 2:57 PM

#

woven solar The main caveat is that in the actual input, ||first character of the algorithm ...

To add to this, if you were to change the example ||so that the first character of the algorithm becomes # and the last becomes ., the answer becomes 24||

restive imp Dec 22, 2021, 2:59 PM

#

Thanks, i'll test that

restive imp Dec 22, 2021, 3:28 PM

#

Ohhh, I see: || reversing the first and last character in the algorithm makes the 'infinite' outside of the image toggle, which influences the outer bits of the image. So I have to pay attention to a bigger area than I thought.||

proud cosmos Dec 22, 2021, 3:28 PM

#

As the prompt says yes

#

Part of the task p1: ||Through advances in imaging technology, the images being operated on here are infinite in size. Every pixel of the infinite output image needs to be calculated exactly based on the relevant pixels of the input image||

#

Is a bit mean tho

#

Anyway I'm struggling again cause I'm overcomplicated it but I am sure this should work and I kinda want to continue it instead of doing the simple solution

#

if p2 today does not requite overcomplicating it i'll be sad

woven solar Dec 22, 2021, 3:30 PM

#

part2 today is pretty horrible

proud cosmos Dec 22, 2021, 3:30 PM

#

Okay maybe I'm doing it fine then

woven solar Dec 22, 2021, 3:30 PM

#

I'd put it as the second hardest day so far, first one being Beacon Scanner of course.

proud cosmos Dec 22, 2021, 3:30 PM

#

I could solve p1 easily but I want to do it in a stupid complicated way

#

inb4 I do it but it's still useless

#

:(

#

inb4 p2 is something completely unrelated and I'm just dumb

#

Maybe I should just solve p1 the easy way

#

<_<

restive imp Dec 22, 2021, 3:33 PM

#

Up until Day 17, Day 15 was the hardest for me so far (Part 2 still not done). And I skipped 18 and 19 for now, because they scare me xD

proud cosmos Dec 22, 2021, 3:33 PM

#

day 19 gave me a lot of paion

#

today seems ok so far but I still haven't finishde part 1 since I am forcing myself to do it in some "smart" way

#

:)

woven sable Dec 22, 2021, 3:36 PM

#

proud cosmos today seems ok so far but I still haven't finishde part 1 since I am forcing mys...

||that's a good idea tbh, you'll be stuck with trying a smart way either way with P1 or P2||

woven sable Dec 22, 2021, 3:37 PM

#

woven sable ||that's a good idea tbh, you'll be stuck with trying a smart way either way wit...

||if you do a smart, fast way now you'll be set for P2||

proud cosmos Dec 22, 2021, 3:37 PM

#

That's what I assumed

#

If I ever finish it

hollow wharf Dec 22, 2021, 3:37 PM

#

who uses github copilot

sleek cave Dec 22, 2021, 5:20 PM

#

my whole life i've been taught the word "rectangular prism" for boxes lmao

#

"cuboid" is way better

mossy stream Dec 22, 2021, 5:27 PM

#

did anyone else get around 39764556457144 for D22P2 on the sample input?

sleek cave Dec 22, 2021, 5:27 PM

#

woohoo, time to whip up an inefficient naive solution!

sleek cave Dec 22, 2021, 5:27 PM

#

mossy stream did anyone else get around 39764556457144 for D22P2 on the sample input?

okay, there's no chance that the naive solution could solve p2 then 🤣

mossy stream Dec 22, 2021, 5:27 PM

#

lmao noope

sleek cave Dec 22, 2021, 5:28 PM

#

why 3d math 😔

#

oreo had a challenge to generalize orthotope overlapping to nth dimensions

mossy stream Dec 22, 2021, 5:28 PM

#

The answer to the sample for P2 is ||2758514936282235||

sleek cave Dec 22, 2021, 5:28 PM

#

wonder who would be crazy enough to do that

mossy stream Dec 22, 2021, 5:28 PM

#

I mean I could add any dimension at any point to my solution

#

if only I can get the final logic to be working

proud cosmos Dec 22, 2021, 5:32 PM

#

Send help

sleek cave Dec 22, 2021, 5:32 PM

#

sleek cave wonder who would be crazy enough to do that

cc: @mossy basin
challenge from me and @woven oriole: generalize day 22 and create a function for n-orthotope overlapping

proud cosmos Dec 22, 2021, 5:32 PM

#

I've lost all motivation for today

#

My logic shoudl techncially work but idk

#

that one part seems so complicatged surely that isn't it

#

:(

sleek cave Dec 22, 2021, 5:33 PM

#

proud cosmos My logic shoudl techncially work but idk

programming in a nutshell:

proud cosmos Dec 22, 2021, 5:33 PM

#

I never tested it since I never finished it

#

I just keep finding more edge cases that I don't cover and I scrapped it like twice already

#

Lol

#

At least I'm pretty good at imagining a cube now ig

mossy basin Dec 22, 2021, 5:34 PM

#

sleek cave cc: <@!431341013479718912> challenge from me and <@!722075505230348358>: general...

||i'm sure line-sweeping works in the general case||

#

||not sure if i'll have time today to write a 3d sweeper||

#

||but you sort the coordinates on each axis along with on/off information, each time you pass a point where the on/off changes you emit a new cube||

#

did not know this was not spoilers

fossil cipher Dec 22, 2021, 5:41 PM

#

proud cosmos I've lost all motivation for today

||Optimisation problems already dial down my enthusiasm, even worse when it's something totally outside of my wheel house, like 3 dimensional coordinate fudging.||

proud cosmos Dec 22, 2021, 5:41 PM

#

The second I read 3d on aoc I'm already like

#

ChocolaAAAAAAA

#

3d is tough

mossy stream Dec 22, 2021, 5:42 PM

#

it isn't tough per se

#

just more tiring and harder computation wise

proud cosmos Dec 22, 2021, 5:42 PM

#

Yeah I'm sure I can do it too

#

it seems like it'll be suuuch a pain

fossil cipher Dec 22, 2021, 5:42 PM

#

I can sort of visualise what I need to do in my head, but I have absolutely no desire to work out the math. So P2 is probably not happening - at least not today.

proud cosmos Dec 22, 2021, 5:42 PM

#

I do still want to do it though

#

first year wherer I do everything on same day has to be this year

#

I had one idea that would probably remove a lot of math

#

but make it a lot slower

#

hmmmm

#

not sure if worth

#

not as slow as naive I'd assume

hollow wharf Dec 22, 2021, 5:43 PM

#

That was a fun one haha because someone else did it for me

proud cosmos Dec 22, 2021, 5:43 PM

#

but still slower

hollow wharf Dec 22, 2021, 5:44 PM

#

naive is literally impossible

fossil cipher Dec 22, 2021, 5:44 PM

#

I tried p2 example using my naive code... made a lot of noise for a while and my computer killed the process lol

hollow wharf Dec 22, 2021, 5:44 PM

#

it takes a few millennias to run

proud cosmos Dec 22, 2021, 5:44 PM

#

Still haven't finished p1

#

since I thought naive is pointless anyway

#

looked obvious to me lol

hollow wharf Dec 22, 2021, 5:44 PM

#

I think it is good to do the first part naive if the optimized version isn't obvious

proud cosmos Dec 22, 2021, 5:44 PM

#

I have an idea how to do it

#

jnust not sure I wanna bother

hollow wharf Dec 22, 2021, 5:45 PM

#

gives you a feel for the problem

fossil cipher Dec 22, 2021, 5:45 PM

#

I knew what was coming when they mentioned the ||restricted 100^3 volume|| still did it the bad way hoping I was wrong 😄

hollow wharf Dec 22, 2021, 5:46 PM

#

continuing onto the harder challenges made us reach place 80 lmao

proud cosmos Dec 22, 2021, 5:47 PM

#

Yeah I guess me just not doing part1 is going to hurt my leadearboard place

#

but I never really cared about it anyway so whatever

hollow wharf Dec 22, 2021, 5:49 PM

#

we completed a few challenges a day after

#

or two

candid berry Dec 22, 2021, 5:52 PM

#

Did you ever manage to find the bug?

sleek cave Dec 22, 2021, 6:00 PM

#

hollow wharf gives you a feel for the problem

i agree. i always naive first instead of jumping in right away trying to find the clever solution

humble copper Dec 22, 2021, 6:00 PM

#

fossil cipher I knew what was coming when they mentioned the ||restricted 100^3 volume|| still...

isnt it ||101 ^ 3||

fossil cipher Dec 22, 2021, 6:06 PM

#

indeed, but you get the point (aha)

humble copper Dec 22, 2021, 6:10 PM

#

yeah true

#

im assuming days 23 and 24 are gonna be even more difficult than today?

sleek cave Dec 22, 2021, 6:25 PM

#

nice.

proud cosmos Dec 22, 2021, 6:25 PM

#

I think I fought wityh a function

#

that waas acutally really trivial

#

I feel dumb now

#

What

#

am I dumb or is this really not that hard

#

Well one more step

sleek cave Dec 22, 2021, 6:25 PM

#

humble copper im assuming days 23 and 24 are gonna be even more difficult than today?

usually they get easier during the holidays, no? i assume 24 and 25 will be a day 12 - 16 level question

wispy onyx Dec 22, 2021, 6:34 PM

#

Hi

#

I made a YouTube subtitle extractor

proud cosmos Dec 22, 2021, 6:37 PM

#

ok

#

Seems like a virus to me

#

Randomly posting it in a channel does not make it very trustworthy

humble copper Dec 22, 2021, 6:38 PM

#

sandbox time

sleek cave Dec 22, 2021, 6:39 PM

#

clicks
realizes it's youreanidiot
oh no

#

(\s btw idk bc i didn't click on it lmao)

north silo Dec 22, 2021, 6:39 PM

#

!mute 913243080302411806 incident_investigating

marsh currentBOT Dec 22, 2021, 6:39 PM

#

:incoming_envelope: :ok_hand: applied mute to @wispy onyx until <t:1640201978:f> (59 minutes and 59 seconds).

sleek cave Dec 22, 2021, 6:40 PM

#

north silo !mute 913243080302411806 <:incident_investigating:714224190928191551>

christmas hat on fractal? so festive lmao

proud cosmos Dec 22, 2021, 6:40 PM

#

Christmas hat not even a fractal

#

smh

#

:(

sleek cave Dec 22, 2021, 6:40 PM

#

exactly, smh

proud cosmos Dec 22, 2021, 6:40 PM

#

hey did you finish today yet

sleek cave Dec 22, 2021, 6:40 PM

#

no lol

proud cosmos Dec 22, 2021, 6:40 PM

#

nice

#

same

sleek cave Dec 22, 2021, 6:40 PM

#

i'm playing around with rectangle overlapping in 2d

humble copper Dec 22, 2021, 6:40 PM

#

sleek cave usually they get easier during the holidays, no? i assume 24 and 25 will be a da...

i would assume so, but ive been told that's not the case

proud cosmos Dec 22, 2021, 6:40 PM

#

Overlapping stumped me for a logn time

#

but I think I figured it out

#

now I just need the rest

#

:)

sleek cave Dec 22, 2021, 6:41 PM

#

ggs!!

proud cosmos Dec 22, 2021, 6:41 PM

#

idk last year day 25 was super trivial

#

i'd assume the same this year

humble copper Dec 22, 2021, 6:41 PM

#

theres ||an easier way that involves subtracting the volume of intersections and adding back the total volume if its an on cuboid||

proud cosmos Dec 22, 2021, 6:41 PM

#

day 24 wasn't really hard either

humble copper Dec 22, 2021, 7:27 PM

#

just 3 days left

proud cosmos Dec 22, 2021, 7:36 PM

#

Same

#

except I still didn't finish today

#

lol

#

motivation where are u

#

What

#

array has exactly 2 values

#

I ask it to unpack 2 values

#

too many values to unpack

#

confused

livid gull Dec 22, 2021, 7:48 PM

#

print array out then

proud cosmos Dec 22, 2021, 7:49 PM

#

I think it's cause it's not a 2d array

#

Weird

#

#

What

#

what did I create

#

what is this

#

Infinite arrays ig

#

Oh

#

a.append(a)

#

You're allowed to do that huh

sleek cave Dec 22, 2021, 8:06 PM

#

tuff day 😔 don't even have an approach yet

sonic silo Dec 22, 2021, 8:08 PM

#

proud cosmos what did I create

you just found out about python's guard against recursive containers!

proud cosmos Dec 22, 2021, 8:09 PM

#

Kinda cool

#

But huh

sonic silo Dec 22, 2021, 8:09 PM

#

#

works with other builtin containers

proud cosmos Dec 22, 2021, 8:11 PM

#

Huh

#

Also i thought I was doing something not that bad

#

but it appears that is not the case

#

apparently my solution is absolutely terrible in performance

#

huh

#

or in an infinite loop

#

one of the two

#

I'm gonna guess the 2nd

#

hmmmm

sleek cave Dec 22, 2021, 8:13 PM

#

i haven't even found a solution to the 2d version of this problem yet lmao

proud cosmos Dec 22, 2021, 8:13 PM

#

I think my thing should work but uh maybe it doesn't

pine tiger Dec 22, 2021, 8:15 PM

#

hey yall

proud cosmos Dec 22, 2021, 8:15 PM

#

I managed to amke my solution count -1 million cubes without a single "off" command

pine tiger Dec 22, 2021, 8:15 PM

#

do you think i can keep my global lb

proud cosmos Dec 22, 2021, 8:15 PM

#

taht's pretty cool

#

huh

pine tiger Dec 22, 2021, 8:15 PM

#

with like 780 points

proud cosmos Dec 22, 2021, 8:16 PM

#

What does keeping global lb mean

#

Oh

#

Hmmm

#

Honestly posibble

#

Doing more is more safe tho

#

at least day 25 ig could help?

#

hmmmm

#

usually quite easy though that doies mean others also have a chance which could k ick you off with random 100s

sleek cave Dec 22, 2021, 8:17 PM

#

proud cosmos I managed to amke my solution count -1 million cubes without a single "off" comm...

my first off appears at 225...

proud cosmos Dec 22, 2021, 8:17 PM

#

huh

#

How big is your input what

#

Lol

sleek cave Dec 22, 2021, 8:18 PM

#

proud cosmos huh

oh, as in 225th instruction lmao

sleek cave Dec 22, 2021, 8:18 PM

#

proud cosmos How big is your input what

420 instructions

proud cosmos Dec 22, 2021, 8:18 PM

#

oh wow mine is also 420

#

yeah my first off is at like 7

#

11

sleek cave Dec 22, 2021, 8:18 PM

#

proud cosmos yeah my first off is at like 7

oh, i thought you meant first off after initialization procedure

proud cosmos Dec 22, 2021, 8:18 PM

#

I haven't even done part 1 yet

#

Lol

#

idk what comes after

sleek cave Dec 22, 2021, 8:19 PM

#

proud cosmos idk what comes after

your (or, at least my) worst nightmares

proud cosmos Dec 22, 2021, 8:19 PM

#

I mean I'm solving part 1 in how I think I have to to do part 2

sleek cave Dec 22, 2021, 8:19 PM

#

are you trying to find a clever solution to part 1? i would recommend start with the naive sol first

proud cosmos Dec 22, 2021, 8:19 PM

#

now if I can get it to actually work tho

sleek cave Dec 22, 2021, 8:19 PM

#

proud cosmos I mean I'm solving part 1 in how I think I have to to do part 2

ah, yes

proud cosmos Dec 22, 2021, 8:19 PM

#

Yeah maybe I should've done that but at this point..

#

it seems close

sleek cave Dec 22, 2021, 8:19 PM

#

lol alright

#

good luck!

#

OH IM ON A TRACK

#

I MIGHT HAVE FIGURED OUT ON OVERLAPPING

humble copper Dec 22, 2021, 8:21 PM

#

~~eric wastl if you're secretly in this server make the next few days a lot easier please 🙏🙏🙏~~

sleek cave Dec 22, 2021, 8:23 PM

#

I MIGHT HAVE FIGURED OUT ON/OFF OVERLAPPING

proud cosmos Dec 22, 2021, 8:24 PM

#

eric if you are here make me get it and solve it right now

#

:(

sleek cave Dec 22, 2021, 8:29 PM

#

pray to the aoc gods and the superior eric

proud cosmos Dec 22, 2021, 8:29 PM

#

why do I get so much negative

#

Huh

#

What is happening

#

o-o

proud cosmos Dec 22, 2021, 9:10 PM

#

Not going to lie this is annoying me maybe more than the beacon issue

#

since I constantly feel like I basically know what to do but at the same time it just isn't right

#

I must be close but it's just not right

#

Also it has the same amount of barely any examples

#

so that's col

proud cosmos Dec 22, 2021, 10:00 PM

#

send help

muted aurora Dec 22, 2021, 10:01 PM

#

share code on spoilers

proud cosmos Dec 22, 2021, 10:02 PM

#

I've scrapped it again cause it was dumb

#

also I noticed something funny

#

:( :( :( :( :( :( :( :( :( :( :(

#

My brain sees that as smiley faces up to the last 3

#

hmmmm

sleek cave Dec 22, 2021, 10:29 PM

#

lmao

#

today is really rough for me

#

i think i have some semblance of a solution in my mind for 2d

#

but to extend that to 3d...

low condor Dec 22, 2021, 11:16 PM

#

How's everyone getting one with part 2 today? ||I have spent 20% of my time on a solution and 80% of my time squashing bugs, and I still got bugs||

proud cosmos Dec 22, 2021, 11:17 PM

#

I struggled, hard

#

for very long

low condor Dec 22, 2021, 11:17 PM

#

||May need a step by step result for the last example saying how many cubes should be on at each step||

proud cosmos Dec 22, 2021, 11:17 PM

#

finally gave in and got a big tip and now I solved it with no statisfaction

#

I was very close the entire time

#

:(

humble copper Dec 22, 2021, 11:17 PM

#

low condor How's everyone getting one with part 2 today? ||I have spent 20% of my time on a...

had to look at someone else's solution to understand the problem, and once i did i attempted to reimplement it

#

not proud of myself at all

proud cosmos Dec 22, 2021, 11:17 PM

#

Yea basically same

#

Though I did have almost all of that myself at least

#

Only was needing that last push

#

how frustrating

humble copper Dec 22, 2021, 11:17 PM

#

yeah same

#

i had the general idea but it was lacking the example that brought it all together

#

so that wasnt fun :/

proud cosmos Dec 22, 2021, 11:18 PM

#

low condor ||May need a step by step result for the last example saying how many cubes shou...

#advent-of-code-spoilers-archive message (in spoiler channel)

#

haha

#

nice

low condor Dec 22, 2021, 11:19 PM

#

Cheers - that will be my last ditch attempt to get this working

#

because my code works on the earlier examples 😦

humble copper Dec 22, 2021, 11:20 PM

#

low condor because my code works on the earlier examples 😦

if thats the case ||you might fare better with a completely different algorithm for part 2||

woven sable Dec 22, 2021, 11:20 PM

#

This was harder than D19 if I'm being honest

low condor Dec 22, 2021, 11:20 PM

#

humble copper if thats the case ||you might fare better with a completely different algorithm ...

||I did write a completely different algorithm for part 2 XD ||

woven sable Dec 22, 2021, 11:20 PM

#

And I found D19 hard

proud cosmos Dec 22, 2021, 11:20 PM

#

In the end the idea is quite simple

humble copper Dec 22, 2021, 11:20 PM

#

which one was 19?

proud cosmos Dec 22, 2021, 11:20 PM

#

but coming up with it

humble copper Dec 22, 2021, 11:20 PM

#

i forgot

proud cosmos Dec 22, 2021, 11:20 PM

#

beacons

woven sable Dec 22, 2021, 11:21 PM

#

I don't know why a weekday problem near Christmas is so hard ;(, hopefully tomorrow's a freebie

proud cosmos Dec 22, 2021, 11:21 PM

#

Yeah why on a wednesday

#

Thonk

humble copper Dec 22, 2021, 11:21 PM

#

if im being honest, 19 wasnt all that bad

#

for me at least

quick glacier Dec 22, 2021, 11:22 PM

#

19 was ugly and full of debugging, but conceptually I had less trouble than today's

low condor Dec 22, 2021, 11:22 PM

#

I struggle with anything 3D coordinate related

minor cave Dec 22, 2021, 11:22 PM

#

This is neat! Python is almost the majority https://jeroenheijmans.github.io/advent-of-code-surveys/

AoC (Unofficial) Survey Results

Results dashboard with the yearly (unofficial) Advent of Code participant survey

low condor Dec 22, 2021, 11:22 PM

#

I just have trouble visualising the finer details of everything

humble copper Dec 22, 2021, 11:22 PM

#

minor cave This is neat! Python is almost the majority https://jeroenheijmans.github.io/adv...

whos writing stuff on wsl lmao

woven sable Dec 22, 2021, 11:23 PM

#

low condor I just have trouble visualising the finer details of everything

Yeah same

low condor Dec 22, 2021, 11:23 PM

#

is a cube overlapping with another cube, is it not

#

I almost need cubes in my hand to play with to understand it

humble copper Dec 22, 2021, 11:24 PM

#

low condor I struggle with anything 3D coordinate related

+1, for 2 minutes i truly considered if the data was given as points or cube locations

low condor Dec 22, 2021, 11:25 PM

#

proud cosmos https://discord.com/channels/267624335836053506/910196070729015346/9233392522159...

My code diverges somewhere in the middle of this, FML

proud cosmos Dec 22, 2021, 11:25 PM

#

rip

humble copper Dec 22, 2021, 11:26 PM

#

if its any consolation, i believe in you

proud cosmos Dec 22, 2021, 11:26 PM

#

low condor I almost need cubes in my hand to play with to understand it

Good thing I have a lot of rubic cubes

humble copper Dec 22, 2021, 11:26 PM

#

you've gotten so far and you're almost at the end

proud cosmos Dec 22, 2021, 11:26 PM

#

negative thing is I have almost no rubik cubes here

#

:(

low condor Dec 22, 2021, 11:28 PM

#

low condor My code diverges somewhere in the middle of this, FML

worst part is I'm not sure what I can even do once I get to the part where my code breaks D: the data will be vast enough that noticing anything weird may be very difficult

#

literally past halfway of that example and my code is perfect - D:

#

found the breaking point though

proud cosmos Dec 22, 2021, 11:33 PM

#

Someone suggested trying to reduce it to as little things as possible that still break it

#

but yeah sounds like it'd be quite hard

#

How do you kow it still breaks it hmmmm

#

Weird stuff today

low condor Dec 22, 2021, 11:33 PM

#

I found the point where the test started to fail

woven sable Dec 22, 2021, 11:34 PM

#

my code fails at the second one lmao

low condor Dec 22, 2021, 11:34 PM

#

but yeah, today is really a pain. A step by step for the big one would have been very useful

sleek cave Dec 23, 2021, 12:51 AM

#

proud cosmos Someone suggested trying to reduce it to as little things as possible that still...

that's what i do

#

today is the first day where i really don't know what to do lmao

#

gonna reattempt tomorrow

low condor Dec 23, 2021, 1:13 AM

#

sleek cave today is the first day where i really don't know what to do lmao

you and me both 🙂

#

after my code broke in the middle of the large example, I gave up on it

humble copper Dec 23, 2021, 2:08 AM

#

github copilot is cheating right

bright haven Dec 23, 2021, 2:28 AM

#

humble copper github copilot is cheating right

cheating? on what?

humble copper Dec 23, 2021, 2:28 AM

#

aoc

#

like
# given a list of integers, count the number of times the integers increase

#

boom function

#

done

bright haven Dec 23, 2021, 2:29 AM

#

humble copper aoc

well, there aren't rules against it, but it might ruin the fun

humble copper Dec 23, 2021, 2:29 AM

#

true

terse comet Dec 23, 2021, 2:30 AM

#

humble copper like `# given a list of integers, count the number of times the integers increa...

tbh if you can break it down to a command github copilot understands, you probably could do it without it anyway, but I can see where your point comes from

#

still, you would you count searching that exact same query for StackOverflow answers as cheating?

#

(well... maybe not the same query, but a similar one structured as a question instead of imperatively)

humble copper Dec 23, 2021, 2:32 AM

#

true

maiden brook Dec 23, 2021, 2:37 AM

#

humble copper like `# given a list of integers, count the number of times the integers increa...

||# give the solution to the 2021 advent of code day 1 puzzle||

peak dock Dec 23, 2021, 3:21 AM

#

https://www.reddit.com/r/adventofcode/comments/rme5ci/unofficial_aoc_2021_survey_results/ 👀

r/adventofcode - Unofficial AoC 2021 Survey Results!

140 votes and 39 comments so far on Reddit

#

python miles ahead of others

#

rust ahead of js

#

i would have thought python and js would be the top two

terse comet Dec 23, 2021, 3:25 AM

#

lol what, Vim is the second most popular IDE?

potent pumice Dec 23, 2021, 3:42 AM

#

terse comet lol what, Vim is the second most popular IDE?

of aoc? not surprised

terse comet Dec 23, 2021, 3:42 AM

#

peak dock rust ahead of js

by the way, it seems like the intersection between "using Rust" and "learning a new language" is high

>>> df.apply(lambda row: 'Rust' in row.Languages, axis = 1).sum()
504
>>> df.apply(lambda row: any('new lang' in reason for reason in row.Reason_for_participating), axis = 1).sum()
1046
>>> df.apply(lambda row: ('Rust' in row.Languages) and (any('new lang' in reason for reason in row.Reason_for_participating)), axis = 1).sum()
277
``` ~~not proud of this code but it works~~
using data from <https://raw.githubusercontent.com/jeroenheijmans/advent-of-code-surveys/master/2021/results-sanitzed.json>

#

oh, I forgot to mention: these are out of 4245

potent pumice Dec 23, 2021, 3:44 AM

#

terse comet lol what, Vim is the second most popular IDE?

Take special care about the fact that there's heavy bias in the cohort surveyed. Most people came to the survey from either Reddit or Twitter, and this will skew the data accordingly. The more we can spread the word to a more representative AoC-user-base in the future years, the more interesting and correct the data becomes. But for now, remember that the results are about people that tend to see the survey around, not about "all AoC participants".

terse comet Dec 23, 2021, 3:45 AM

#

yeah, having it on the 20th day+ also skews it towards users that are still actively participating

#

so almost definitely many fewer first timers than if you asked on the first week

candid berry Dec 23, 2021, 4:44 AM

#

terse comet lol what, Vim is the second most popular IDE?

Why, what have you been using?

#

And why isn't it vim?

digital ember Dec 23, 2021, 4:46 AM

#

Neovim <3

woven solar Dec 23, 2021, 4:55 AM

#

we're getting to the bottom of the abyss. Who wants to speculate emptily on what the next task's lore will be? 🥴

#

...why are we going to the bottom again?

#

oh, right

Apparently, one of the Elves tripped and accidentally sent the sleigh keys flying into the ocean!

#

it's always the elves' fault.

candid berry Dec 23, 2021, 4:57 AM

#

Santa better make an example of that elf

#

He cost us 25 days right at the busiest time of the year for Santa

woven solar Dec 23, 2021, 4:59 AM

#

next year, this elf will replace the sleigh as a meat toboggan

hidden copperBOT Dec 23, 2021, 5:00 AM

#

<@&518565788744024082> Good morning! Day 23 is ready to be attempted. View it online now at https://adventofcode.com/2021/day/23. Good luck!

sinful pawn Dec 23, 2021, 5:00 AM

#

oops

hazy pendant Dec 23, 2021, 5:00 AM

#

a

#

i give up

#

already

humble copper Dec 23, 2021, 5:00 AM

#

woven solar we're getting to the bottom of the abyss. Who wants to speculate emptily on what...

kaiju

sinful pawn Dec 23, 2021, 5:00 AM

#

you do?

hazy pendant Dec 23, 2021, 5:00 AM

#

and i forgot to turn off ping

#

forgor*

humble copper Dec 23, 2021, 5:04 AM

#

well

#

this is

somber crow Dec 23, 2021, 5:04 AM

#

today's one is probably the easyest to do without programming

humble copper Dec 23, 2021, 5:04 AM

#

um

humble copper Dec 23, 2021, 5:04 AM

#

somber crow today's one is probably the easyest to do without programming

yeah this

somber crow Dec 23, 2021, 5:04 AM

#

normally with stuff like this the input is bigger than this

#

the board game one a day or two ago is probably just as easy for part one if you dont code

woven oriole Dec 23, 2021, 5:10 AM

#

it indeed is a pathfinding one

#

but i need an algo to decide which one to move when lol

#

lmao the puzzle input

#

dam

velvet knot Dec 23, 2021, 5:19 AM

#

Shall use infinite monkey theorm

woven oriole Dec 23, 2021, 5:27 AM

#

#

OMG

#

.

#

lmfao

#

i just gave it a try

#

p2 seems a brainfuck

#

2 people

#

on global

#

now 5

humble copper Dec 23, 2021, 5:36 AM

#

||BY HAND||

#

I ACTUALLY DID IT

#

HAHAHA

sonic silo Dec 23, 2021, 5:40 AM

#

huh

#

just woke up

#

late

pallid shoal Dec 23, 2021, 5:42 AM

#

Hi

humble copper Dec 23, 2021, 5:48 AM

#

im satisfied with silver starring today within an hour

#

tomorrow ill go for gold

#

||can part 2 be done without any code whatsoever? idk how ill exactly show my solution on my repo but ill figure that out when i get there||

woven oriole Dec 23, 2021, 5:56 AM

#

humble copper ||can part 2 be done without any code whatsoever? idk how ill exactly **show** m...

lmfao

#

just write
||import brain||

#

in repo

earnest forge Dec 23, 2021, 5:57 AM

#

ImportError

humble copper Dec 23, 2021, 5:59 AM

#

woven oriole lmfao

||im gonna try at least||

woven oriole Dec 23, 2021, 5:59 AM

#

hm part 2

humble copper Dec 23, 2021, 5:59 AM

#

seems infinitely easier than ||having to figure out how to do this with an algorithm then implementing said algorithm||

late frigate Dec 23, 2021, 6:45 AM

#

Did anyone else get an error while submitting an answer, but it accepted it anyways?

#

Like I got a "wait 5 seconds" (even though i didnt submit a wrong answer) and it still worked

crystal shard Dec 23, 2021, 7:16 AM

#

46/50 stars!

pearl moon Dec 23, 2021, 7:18 AM

#

Would this be a good use case for || heuristics and NFA's ||?

stable heron Dec 23, 2021, 7:52 AM

#

crystal shard 46/50 stars!

😩

#

31 only

hollow wharf Dec 23, 2021, 8:11 AM

#

uhhhhhhhhh

#

what da HECK

#

I feel like solving by hand lmao

#

what is part two though

pearl needle Dec 23, 2021, 8:13 AM

#

part 2 is ||twice as big rooms with twice as many amphipods to start with||

hollow wharf Dec 23, 2021, 8:15 AM

#

aaaaaa

somber crow Dec 23, 2021, 8:41 AM

#

wait until tomorrow to compare completion rates, some people dont do it soon as it comes out because they are in an inconvenient timezone and need to sleep or do something

hollow wharf Dec 23, 2021, 8:48 AM

#

I'm still taking my breakfast

rapid wolf Dec 23, 2021, 9:19 AM

#

today is kind of interesting. I don't have a ton of time, but lets see how far I can get.

wooden jewel Dec 23, 2021, 11:18 AM

#

pain

frigid mural Dec 23, 2021, 11:39 AM

#

wooden jewel pain

my queues are getting to half a million items, so things could be worse

proud cosmos Dec 23, 2021, 11:56 AM

#

Debugging thgis is actually impossible

#

how come my brute force whatever garbage can't even get all possibilites right

#

I don't know

#

have been debugging for like 2h and Is till don't know

#

rofl.

#

I'm considering just doing it manually

#

would be easier.

wooden jewel Dec 23, 2021, 11:57 AM

#

Am I even on the right path using ||A*||?

maiden brook Dec 23, 2021, 11:58 AM

#

wooden jewel Am I even on the right path using ||A*||?

||that's one way of doing it||

proud cosmos Dec 23, 2021, 11:59 AM

#

Don't do whatever I'm doing

#

it's garbage

#

undebuggable

frigid mural Dec 23, 2021, 11:59 AM

#

i went with ||dijkstras but theres so many low total cost states like aaa||

wooden jewel Dec 23, 2021, 11:59 AM

#

maiden brook ||that's one way of doing it||

||is there some smart heuristic? Currently I just have minimum (manhattan) distance to a "resting spot" * cost per move for every block||

maiden brook Dec 23, 2021, 12:09 PM

#

wooden jewel ||is there some smart heuristic? Currently I just have minimum (manhattan) dista...

||my a* impl slowed things down compared to dijkstra's, may be a bug though. what you're saying sounds fine. I'd look into increasing it/s if I were you||

wooden jewel Dec 23, 2021, 12:10 PM

#

||I'm already at 17 minutes at 10k it/s, should I be trying for even more?||

maiden brook Dec 23, 2021, 12:12 PM

#

wooden jewel ||I'm already at 17 minutes at 10k it/s, should I be trying for even more?||

||actually your state space is probably bigger than expected, I only go through 150k its total||

placid lake Dec 23, 2021, 12:12 PM

#

||i don’t think it should take 17 mins lol||

wooden jewel Dec 23, 2021, 12:12 PM

#

||me neither 😢 ||

placid lake Dec 23, 2021, 12:13 PM

#

||yeah, from what i’ve heard, A* is slower than dijkstra’s in this case||

woven solar Dec 23, 2021, 12:13 PM

#

||wow, so many spoilers||

placid lake Dec 23, 2021, 12:13 PM

#

||using manhattan distance as the heuristic that is||

proud cosmos Dec 23, 2021, 12:14 PM

#

I wonder if my error is acuse I use generators

maiden brook Dec 23, 2021, 12:19 PM

#

generators how so

proud cosmos Dec 23, 2021, 12:19 PM

#

It's literally just brute force

#

except it doesn't work

#

at all

#

not evne on part 1

#

No idea what else you'd do my brain isn't getting it

#

Here's my code maybe you can see my error ||https://paste.pythondiscord.com/wovaduyivu.sql||

#

But yeah no idea.

#

It's not even a good solution based on all other days this will never work for aprt 2

#

Impossible to debug tho.

#

Might have to scrap it and think of something else I supopse.

wooden jewel Dec 23, 2021, 12:22 PM

#

placid lake ||yeah, from what i’ve heard, A* is slower than dijkstra’s in this case||

||I used the "real" distance and now it's working at least for the sample input, still kinda slow tho (40s)||

proud cosmos Dec 23, 2021, 12:36 PM

#

aaaaaaaaaaaa

muted aurora Dec 23, 2021, 12:37 PM

#

nice!

proud cosmos Dec 23, 2021, 12:37 PM

#

part 2

#

gonna be pain

#

part 1 already runs for a while

muted aurora Dec 23, 2021, 12:37 PM

#

today destroyed me for some reason

humble copper Dec 23, 2021, 12:37 PM

#

proud cosmos part 2

good luck

proud cosmos Dec 23, 2021, 12:37 PM

#

I mean

muted aurora Dec 23, 2021, 12:37 PM

#

took me ~4 hours and > twice the code I've written for any other day

proud cosmos Dec 23, 2021, 12:37 PM

#

technciaklly it should work for part 2

humble copper Dec 23, 2021, 12:37 PM

#

||are you using an algorithm for it ||

proud cosmos Dec 23, 2021, 12:37 PM

#

it should prob take like 2 hours to run though

old gull Dec 23, 2021, 12:38 PM

#

Grab

proud cosmos Dec 23, 2021, 12:38 PM

#

humble copper ||are you using an algorithm for it ||

starts with b 2nd word f

humble copper Dec 23, 2021, 12:38 PM

#

||bfs?||

muted aurora Dec 23, 2021, 12:38 PM

#

break fast?

proud cosmos Dec 23, 2021, 12:42 PM

#

yes breakfast

#

no ||brute force||

#

i have no idea how you can use anything else

#

tbh

#

so i'm just kinda hoping it'll work

#

:)

hollow wharf Dec 23, 2021, 12:43 PM

#

.

livid gull Dec 23, 2021, 12:44 PM

#

you could use ||A*||

muted aurora Dec 23, 2021, 12:44 PM

#

how much faster is that compared to the naive one?

livid gull Dec 23, 2021, 12:45 PM

#

i dont know i havent implemented either way yet, did both parts in my mind, now need to code them up after having slept and showered my mind is clear lol

proud cosmos Dec 23, 2021, 12:48 PM

#

Yep i'm screwed

#

:)

#

cannot actually complete anything

#

i guess I need to change how its done

placid lake Dec 23, 2021, 12:49 PM

#

wooden jewel ||I used the "real" distance and now it's working at least for the sample input,...

nice!

wooden jewel Dec 23, 2021, 12:49 PM

#

Real input still not working tho, killed it after ~10 minutes

proud cosmos Dec 23, 2021, 12:51 PM

#

Hm

#

my function just

#

stops

#

Lol

#

not me stopping it it just stops

wooden jewel Dec 23, 2021, 12:51 PM

#

Ugh, I guess I'll take a shower and see if it gave the answer after I come back 🤷‍♀️

wooden jewel Dec 23, 2021, 1:20 PM

#

Okay I'm at a loss

#

Ran for over half an hour, 6M+ iterations, still no solution

#

||https://gist.github.com/7d183104dd82268d571387ce428500d5||

#

Any ideas?

sleek cave Dec 23, 2021, 1:25 PM

#

holy insanity these days just get harder and harder

#

this is brutal, ioi level crap

woven oriole Dec 23, 2021, 1:30 PM

#

sleek cave holy insanity these days just get harder and harder

||it is not intended to be done by code ||

sleek cave Dec 23, 2021, 1:31 PM

#

what

#

how

#

I mean, sure, you can do this puzzle by hand, but

humble copper Dec 23, 2021, 1:31 PM

#

sleek cave holy insanity these days just get harder and harder

this isn't all that bad

#

its actually pretty fun

sleek cave Dec 23, 2021, 1:32 PM

#

yeah, I agree

humble copper Dec 23, 2021, 1:32 PM

#

||and imo a whole hell of a lot easier than previous days||

sleek cave Dec 23, 2021, 1:32 PM

#

||im probably gonna do it by hand first, like in day 8||

humble copper Dec 23, 2021, 1:32 PM

#

doing that for part 2 as well

sleek cave Dec 23, 2021, 1:32 PM

#

oh wow

#

is this supposed to be ||done by hand?||

#

like, a troll level?

humble copper Dec 23, 2021, 1:33 PM

#

that would be funny but im not sure

muted aurora Dec 23, 2021, 1:48 PM

#

woven oriole ||it is not intended to be done by code ||

how do you know how it's "intended" to be done?

woven oriole Dec 23, 2021, 1:51 PM

#

muted aurora how do you know how it's "intended" to be done?

||not necessarily to be done by code , if you want to save time||

#

||or bruteforce path finding is the only sol i see with code anyway :P||

proud cosmos Dec 23, 2021, 1:52 PM

#

I somehow

#

mad e it worse

#

huh

frigid zephyr Dec 23, 2021, 1:54 PM

#

can someone explain to me how the d21 quantum dice actually work please? I'm a little confused as to when the deterministic numbers increment

proud cosmos Dec 23, 2021, 1:54 PM

#

uh

#

those are seperate things

muted aurora Dec 23, 2021, 1:54 PM

#

for the quantum one there's not increment

#

the dice work different for both parts

proud cosmos Dec 23, 2021, 1:55 PM

#

||Quantum dice splits the world into 3 possibilities everytime you roll it||

frigid zephyr Dec 23, 2021, 1:55 PM

#

so it only ever has the values 1, 2 or 3?

proud cosmos Dec 23, 2021, 1:55 PM

#

yes

frigid zephyr Dec 23, 2021, 1:55 PM

#

I see

#

Thanks

proud cosmos Dec 23, 2021, 1:59 PM

#

Surely at some point it will find something right

#

SweatBOwO

restive imp Dec 23, 2021, 2:19 PM

#

Yeah, just got two stars after nothing in a few days. I'm so happy right now

hollow wharf Dec 23, 2021, 3:07 PM

#

.......

#

akarys@mojito ~/P/aoc-2021 (main)> python day_23/part_1.py
fish: Job 1, 'python day_23/part_1.py' terminated by signal SIGSEGV (Address boundary error)

#

I broke CPython

muted aurora Dec 23, 2021, 3:09 PM

#

did you set a higher recusion limit?

hollow wharf Dec 23, 2021, 3:09 PM

#

yeah

muted aurora Dec 23, 2021, 3:09 PM

#

well yeah that would do it

hollow wharf Dec 23, 2021, 3:09 PM

#

!e

import sys
sys.setrecursionlimit(10 ** 7)```

marsh currentBOT Dec 23, 2021, 3:09 PM

#

@hollow wharf :warning: Your eval job has completed with return code 0.

[No output]

muted aurora Dec 23, 2021, 3:09 PM

#

if you missed a base case or constraints aren't valid and you get a loop you'll get that, to be expected

hollow wharf Dec 23, 2021, 3:11 PM

#

aaa

gusty basalt Dec 23, 2021, 3:17 PM

#

hello guys is it ok if I permanently disable the 'Workspace Trust'
as it is not allowiing me to debug my code

muted aurora Dec 23, 2021, 3:28 PM

#

hollow wharf !e ```py import sys sys.setrecursionlimit(10 ** 7)```

Is that really even necessary? Haven't even gotten close to the limit in all my solutions

wooden jewel Dec 23, 2021, 3:28 PM

#

WOOOOOO

screenshot-adventofcode.com-2021.12.22-21_39_37.png

#

||A* with a bit more move pruning did it||

proud cosmos Dec 23, 2021, 3:30 PM

#

Nice!

copper ivy Dec 23, 2021, 4:41 PM

#

dang im only on day 10 still

empty rover Dec 23, 2021, 4:45 PM

#

and im only on day 4

#

:)

ember moss Dec 23, 2021, 4:48 PM

#

Hi, I’m just starting to learn python. Which channel can I get help from or see how can I learn python?

ivory horizon Dec 23, 2021, 4:51 PM

#

!e
for i in range(5):
print((i+1) * "*")

marsh currentBOT Dec 23, 2021, 4:51 PM

#

@ivory horizon :white_check_mark: Your eval job has completed with return code 0.

001 | *
002 | **
003 | ***
004 | ****
005 | *****

ivory horizon Dec 23, 2021, 4:51 PM

#

Lol nice

restive imp Dec 23, 2021, 4:53 PM

#

ember moss Hi, I’m just starting to learn python. Which channel can I get help from or see...

First, I'd look at available guides. Here is a starting point: https://www.pythondiscord.com/resources/
If you have specific questions: #❓｜how-to-get-help

glad tartan Dec 23, 2021, 4:54 PM

#

!e for i in range(3):
for j in range(i, i + 3):
print(""(j+1))

marsh currentBOT Dec 23, 2021, 4:54 PM

#

@glad tartan :white_check_mark: Your eval job has completed with return code 0.

001 | *
002 | **
003 | ***
004 | **
005 | ***
006 | ****
007 | ***
008 | ****
009 | *****

candid sigil Dec 23, 2021, 4:55 PM

#

Just stumbled across this channel. I'm currently working on day 22. Not hard to guess what part 2 will introduce, so I'm not brute-forcing it.

muted aurora Dec 23, 2021, 4:55 PM

#

candid sigil Just stumbled across this channel. I'm currently working on day 22. Not hard to ...

i knew what would happen and I fully brute forced it anyway

#

😢

glad tartan Dec 23, 2021, 4:56 PM

#

!e for i in range(3):
for j in range(i, i + 3):
print("{:^30}".format(""(2*j+1)))

marsh currentBOT Dec 23, 2021, 4:56 PM

#

@glad tartan :white_check_mark: Your eval job has completed with return code 0.

001 |               *               
002 |              ***              
003 |             *****             
004 |              ***              
005 |             *****             
006 |            *******            
007 |             *****             
008 |            *******            
009 |           *********

candid sigil Dec 23, 2021, 4:59 PM

#

muted aurora i knew what would happen and I fully brute forced it anyway

I'm kind of tempted to. It's becoming way more annoying to implement than I expected.

muted aurora Dec 23, 2021, 5:00 PM

#

!e

i=8,9
o=range(10)
l=''.join(' X'[c in i]for c in o)
for r in o:
  print(l)
  l=''.join('X '[l[c-1:c+2]in('XXX','   ','X  ','','  ')]for c in o)

marsh currentBOT Dec 23, 2021, 5:00 PM

#

@muted aurora :white_check_mark: Your eval job has completed with return code 0.

001 |         XX
002 |        XXX
003 |       XX X
004 |      XXXXX
005 |     XX   X
006 |    XXX  XX
007 |   XX X XXX
008 |  XXXXXXX X
009 |  X     XXX
010 |  X    XX X

candid sigil Dec 23, 2021, 5:01 PM

#

My main language is R, since I'm a data science student, but Python is a better choice for most Advent of Code puzzles, I think.

muted aurora Dec 23, 2021, 5:02 PM

#

I think so too, but then again the best tool is the one you already have 🙂

proud cosmos Dec 23, 2021, 5:03 PM

#

candid sigil Just stumbled across this channel. I'm currently working on day 22. Not hard to ...

that's the spirit

#

Lol

candid sigil Dec 23, 2021, 5:04 PM

#

Indeed, though I'm almost as comfortable with Python now. I actually learned it in last year's Advent of Code.

woven sable Dec 23, 2021, 5:04 PM

#

proud cosmos that's the spirit

how do you get this?

proud cosmos Dec 23, 2021, 5:04 PM

#

it's an addon

#

aoc charts or smth

woven sable Dec 23, 2021, 5:04 PM

#

I see

#

What does it calculate?

proud cosmos Dec 23, 2021, 5:04 PM

#

bunch of charts

#

Likle who was the first 2nd and third tfor a problem on private leaderboard

#

part 1/2

#

some other stats for it

#

actual cahrt

#

#

This is my python private leaderboard chart

trail stone Dec 23, 2021, 5:05 PM

#

I actually just joined the leaderboard because I see myself as a pythonista but right after I did I remembered I was using lisp lol. I wonder how many people on the Python leaderboard didn't actually use python, probably not that many lol

woven sable Dec 23, 2021, 5:06 PM

#

A lot of people actually

proud cosmos Dec 23, 2021, 5:06 PM

#

Lisp is cool

woven sable Dec 23, 2021, 5:06 PM

#

Seen people use Rust, Haskell (ahem Aurora I think), SED for one of them, Gurklang for a few of them and more

proud cosmos Dec 23, 2021, 5:06 PM

#

Yeah everyone that doesn't use python is bad

#

:)

#

I mostly used js

#

lol

#

I did some haskell

#

I tried anyway

trail stone Dec 23, 2021, 5:07 PM

#

Haha awesome

proud cosmos Dec 23, 2021, 5:07 PM

#

last few days have changed to mostly python tho

#

an image + actual input files since I got lazy

#

I thought maybe the first 2000 lines of code being the input is a bit annoying after all

#

hmmmm

trail stone Dec 23, 2021, 5:08 PM

#

Do some of these solutions of yours use both js and python? Like day 6 and 10?

proud cosmos Dec 23, 2021, 5:08 PM

#

yes

trail stone Dec 23, 2021, 5:08 PM

#

Yeah that's maybe not super pythonic

#

I mean the inputs thing

proud cosmos Dec 23, 2021, 5:08 PM

#

Well they aren't the same solution

trail stone Dec 23, 2021, 5:09 PM

#

Ah

proud cosmos Dec 23, 2021, 5:09 PM

#

it's two attempts of different stuff

muted aurora Dec 23, 2021, 5:09 PM

#

I've also been doing all days in C so far

#

will probably skip on 23 lmao

proud cosmos Dec 23, 2021, 5:09 PM

#

like that day 16 is my "regex only part 1 solve"

#

Which I am still pretty proud about

#

was fun

#

the js is the normal solution

trail stone Dec 23, 2021, 5:10 PM

#

Lol that's sick

proud cosmos Dec 23, 2021, 5:10 PM

#

I liked it

#

Not even that hard if you think about what that part 1 is but yea was fun

trail stone Dec 23, 2021, 5:11 PM

#

I always thought part of the fun challenge of these problems was refactoring between parts and extending your functions, do you get to do that when you switch languages between parts much?

proud cosmos Dec 23, 2021, 5:13 PM

#

Hmm not suree

#

I guess you can use most of the same code though so it may be similar

sleek cave Dec 23, 2021, 5:17 PM

#

proud cosmos like that day 16 is my "regex only part 1 solve"

mate solved d16 with regex- how

#

how do you wield this unholy power

proud cosmos Dec 23, 2021, 5:19 PM

#

Only part1

hard parrot Dec 23, 2021, 5:19 PM

#

How many gold stars do yall have in advent of code

proud cosmos Dec 23, 2021, 5:19 PM

#

All of them in this year

#

Missing quite a few from before

hard parrot Dec 23, 2021, 5:19 PM

#

:wtflol:

#

No nqn sad

#

I just have 5 stars lemon_sentimental

proud cosmos Dec 23, 2021, 5:20 PM

#

That's fine as well, I've invested way too much teim in this anyway

#

Lol

sleek cave Dec 23, 2021, 5:20 PM

#

i'm lagging behind since day 19, these puzzles are slowly exceeding my capabilities

#

scratch that, rapidly exceeding

#

well, except for day 20, that was a breather

shut birch Dec 23, 2021, 5:21 PM

#

That's when the real fun begins, no? 🤘

sleek cave Dec 23, 2021, 5:21 PM

#

shut birch That's when the real fun begins, no? 🤘

agreed, the fun of tearing your hair out for hours trying to find a semblance of an approach to the problem

shut birch Dec 23, 2021, 5:22 PM

#

I just call it "growth". But I suppose you could detail the specifics of the mania 😋

candid sigil Dec 23, 2021, 5:22 PM

#

sleek cave i'm lagging behind since day 19, these puzzles are slowly exceeding my capabilit...

Me too. I haven't attempted several of the harder ones yet.

shut birch Dec 23, 2021, 5:23 PM

#

Imagine, having hair. 🙄

sleek cave Dec 23, 2021, 5:23 PM

#

shut birch I just call it "growth". But I suppose you could detail the specifics of the man...

lmao yeah

#

well i've heard that d19 isn't really hard, just complex and tedious to implement

#

but d22 is torture

#

cuboid overlapping, so fun

candid sigil Dec 23, 2021, 5:26 PM

#

It seemed simple enough going in; just ||build a class to represent intervals for each dimension and update it to add or subtract intervals||. But that is proving a lot tougher than I expected.

woven oriole Dec 23, 2021, 5:26 PM

#

protip ||negative volume cancels the intersection||

proud cosmos Dec 23, 2021, 5:27 PM

#

There are two main ways to solve it

#

One is more thinking and slower and one is pretty obvious but kinda hard

#

That's what I'd say

stark gulch Dec 23, 2021, 5:27 PM

#

!e
def cristmas_tree(n):
z = n - 1
x = 1
for i in range(n):
print(' ' * z + '+' * x + ' ' * z)
x+=2
z-=1
print(''*n/2+'|||')
cristmas_tree(9)

marsh currentBOT Dec 23, 2021, 5:27 PM

#

@stark gulch :x: Your eval job has completed with return code 1.

001 |         +        
002 |        +++       
003 |       +++++      
004 |      +++++++     
005 |     +++++++++    
006 |    +++++++++++   
007 |   +++++++++++++  
008 |  +++++++++++++++ 
009 | +++++++++++++++++
010 | Traceback (most recent call last):
011 |   File "<string>", line 9, in <module>
... (truncated - too many lines)

Full output: https://paste.pythondiscord.com/eqodozutix.txt?noredirect

stark gulch Dec 23, 2021, 5:27 PM

#

!e
def cristmas_tree(n):
z = n - 1
x = 1
for i in range(n):
print(' ' * z + '+' * x + ' ' * z)
x+=2
z-=1
print(''*n/2+'|||')
cristmas_tree(3)

marsh currentBOT Dec 23, 2021, 5:27 PM

#

@stark gulch :x: Your eval job has completed with return code 1.

001 |   +  
002 |  +++ 
003 | +++++
004 | Traceback (most recent call last):
005 |   File "<string>", line 9, in <module>
006 |   File "<string>", line 8, in cristmas_tree
007 | TypeError: unsupported operand type(s) for /: 'str' and 'int'

woven oriole Dec 23, 2021, 5:28 PM

#

#bot-commands ?

stark gulch Dec 23, 2021, 5:28 PM

#

ye

#

sry

rancid creek Dec 23, 2021, 5:28 PM

#

#26! Was very exciting!

woven oriole Dec 23, 2021, 5:28 PM

#

336th for me on global

#

all time best :D

muted aurora Dec 23, 2021, 5:43 PM

#

my best rank was 140

#

for day 7 i think

#

the typing contest

woven sable Dec 23, 2021, 5:48 PM

#

best rank for me was 327, day 3

sleek cave Dec 23, 2021, 5:50 PM

#

d21p1: lol easy problem, just some die state tracking and... we're done! first try!
d21p2: ||now trifurcate the entire fking universe exponentially using a quantum die. perform doctor strange operations. in how many universes does the winner win?||

peak dock Dec 23, 2021, 5:51 PM

#

my best has been 209 so far

woven sable Dec 23, 2021, 5:51 PM

#

sleek cave d21p1: lol easy problem, just some die state tracking and... we're done! first t...

https://tenor.com/view/timeline-doctor-strange-benedict-cumberbatch-future-infinity-war-gif-11789036

Tenor

woven sable Dec 23, 2021, 5:51 PM

#

sleek cave d21p1: lol easy problem, just some die state tracking and... we're done! first t...

you might wanna spoiler this though btw I think

#

at least P2

sleek cave Dec 23, 2021, 5:51 PM

#

done

peak dock Dec 23, 2021, 5:51 PM

#

||t r i f u r c a t e||

sleek cave Dec 23, 2021, 5:52 PM

#

peak dock ||t r i f u r c a t e||

refined

candid sigil Dec 23, 2021, 5:52 PM

#

Just realized my approach to day 22 fundamentally won't work. That's no fun.

sleek cave Dec 23, 2021, 5:54 PM

#

||As you experiment with the die, you feel a little strange.||
please tell me that as i hover over this text a doctor strange easter egg pops up

stark gulch Dec 23, 2021, 5:54 PM

#

marble minnow Dec 23, 2021, 6:30 PM

#

Hey

#

Which day was the hardest for you?

muted aurora Dec 23, 2021, 6:30 PM

#

today

sleek cave Dec 23, 2021, 6:35 PM

#

currently d22p2 is breaking my brain completely

#

i'm surprised i still haven't given up considering the zero progress lmao

peak dock Dec 23, 2021, 6:35 PM

#

sleek cave currently d22p2 is breaking my brain completely

me2 😔

sonic silo Dec 23, 2021, 6:36 PM

#

day 19 and day 23

candid sigil Dec 23, 2021, 6:39 PM

#

I had a delightful time with day 15. I looked up pseudocode for ||Dijkstra's algorithm|| and kludged it together.

sleek cave Dec 23, 2021, 7:15 PM

#

mistyping self, this is a sign from the aoc gods...

restive imp Dec 23, 2021, 7:23 PM

#

since when does round not round to the next hightest number, if its .5 ?

#

!e
print(round(6.5))

marsh currentBOT Dec 23, 2021, 7:23 PM

#

@restive imp :white_check_mark: Your eval job has completed with return code 0.

sleek cave Dec 23, 2021, 7:24 PM

#

restive imp since when does ``round`` not round to the next hightest number, if its ``.5`` ?

it rounds to the nearest even number if there's a tie

coral chasm Dec 23, 2021, 7:24 PM

#

does anyone have another step by step solution of a test case?
the example works well while my input doesn't...

hollow wharf Dec 23, 2021, 7:26 PM

#

Relatable

coral chasm Dec 23, 2021, 7:27 PM

#

Seriously can anyone help me

muted aurora Dec 23, 2021, 7:28 PM

#

someone posted a video solution for an example in the spoilers channel

#

look in the chat history

restive imp Dec 23, 2021, 7:30 PM

#

sleek cave it rounds to the nearest even number if there's a tie

ohh, wow. that is a weird implementation. never realized that

coral chasm Dec 23, 2021, 7:33 PM

#

muted aurora someone posted a video solution for an example in the spoilers channel

Okay, thanks
I already found one bug so far thanks to it

viscid elbow Dec 23, 2021, 7:35 PM

#

.aoc join

frigid mural Dec 23, 2021, 7:55 PM

#

restive imp ohh, wow. that is a weird implementation. never realized that

This implementation is useful as it makes the sums of a bunch of rounded values closer to the truth

#

If everything at .5 rounded up you would get worse and worse estimates as you sum numbers

#

But since on average half the .5s round up and half round down, the net effect is offset

#

Banks use this a lot, or alternatively swapping between going up and down as they round

restive imp Dec 23, 2021, 7:57 PM

#

I see, that is a good reason. I take the 'weird' back then xD

regal iron Dec 23, 2021, 8:50 PM

#

It's obviously too late to start now, right?

candid sigil Dec 23, 2021, 8:52 PM

#

My computed answer for day 21's test case is off by three or four orders of magnitude. Time to do something else for a while, I think.

restive imp Dec 23, 2021, 8:52 PM

#

regal iron It's obviously too late to start now, right?

that's entirely up to you 😉

candid sigil Dec 23, 2021, 8:53 PM

#

regal iron It's obviously too late to start now, right?

Not at all! Once posted, the puzzles are up forever.

dense herald Dec 23, 2021, 8:59 PM

#

.aoc link jmcantrell

hidden copperBOT Dec 23, 2021, 8:59 PM

#

dense herald .aoc link jmcantrell

You have linked your Discord ID to jmcantrell.

hollow wharf Dec 23, 2021, 9:23 PM

#

D25P2 is free, right?

sinful pawn Dec 23, 2021, 9:25 PM

#

peak dock me2 😔

omg hahastinkydog is back

humble copper Dec 23, 2021, 9:56 PM

#

hollow wharf D25P2 is free, right?

||i think so||

bright haven Dec 23, 2021, 9:57 PM

#

hollow wharf D25P2 is free, right?

||it always has been in the past||

proud cosmos Dec 23, 2021, 10:12 PM

#

inb4 this time it changes

#

d25p1 is free and d25p2 is the hardest challenge ever

#

after 24 hours only 20 of the top spots are claimed

#

Lol

sleek cave Dec 23, 2021, 10:20 PM

#

frigid mural This implementation is useful as it makes the sums of a bunch of rounded values ...

i've never realized that - so cool

#

i always thought the solution to this problem was just to sum them up before rounding

sleek cave Dec 23, 2021, 10:24 PM

#

hollow wharf D25P2 is free, right?

d25p2 expectations:
you've finally found santa's sleigh key! great job! type the word "pick" to pick it up, then you'll be done!

d25p2 reality:
the key is stranded between two parallel universes. to pick up the key, you need to solve riemann's hypothesis and use the result to crack a AES-256 cipher by brute force with a quantum computer. then, find a 5th dimension solution allowing the halting problem to be decidable. a transcendent diety shall then descend to the mortal plane, blessing you with 6 divine characters of the Shadow Realm. these divine characters, combined with a sacrifice of fresh human blood, will grant you the final 8 digits solving the puzzle. what are the 8 digits?

Answer: __________________ [Submit]

proud cosmos Dec 23, 2021, 10:29 PM

#

someone randomly guesses 11111111 and it's correct

#

pikawha

humble copper Dec 23, 2021, 11:31 PM

#

hope tomorrow isnt as bad as today

#

or yesterday

harsh lodge Dec 24, 2021, 12:45 AM

#

say hello to my first python script

humble copper Dec 24, 2021, 12:46 AM

#

collatz?

frigid mural Dec 24, 2021, 12:47 AM

#

Looks like it

humble copper Dec 24, 2021, 12:47 AM

#

though this is #advent-of-code

frigid mural Dec 24, 2021, 12:48 AM

#

harsh lodge say hello to my first python script

a = a//2 would make a always stay an integer btw, just for prettiness purposes

woven solar Dec 24, 2021, 12:58 AM

#

harsh lodge say hello to my first python script

press the autoformat hotkey 😛

humble copper Dec 24, 2021, 1:13 AM

#

post-completion write up

north silo Dec 24, 2021, 4:44 AM

#

.aoc countdown

hidden copperBOT Dec 24, 2021, 4:44 AM

#

Day 24 starts <t:1640322000:R>.

woven sable Dec 24, 2021, 4:44 AM

#

Tomorrow better be easy

north silo Dec 24, 2021, 4:44 AM

#

Hey, who's ready for AoC today?

woven sable Dec 24, 2021, 4:45 AM

#

Not me 😅 I'm behind

#

I finished D22 but I'm working on D23 as we speak

#

I think I'm gonna get some rest and work on it with a ready brain tbh

north silo Dec 24, 2021, 4:46 AM

#

Hopefully it's a nicer one today 🤞