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00:00 - 23:0023:00 - 00:00

12:01 AM
I just realized I wrote an entire essay instead of just a prompt for someone else to write an essay about (ノ°Д°)ノ︵ ┻━┻
 
@Lyxal suffering from suffering gang
wait nvm i got up to +180 just before UTC midnight
damn, wish i was online to FGITW the trailing zeroes challenge with the trivial jelly sol
 
I managed to get +178 on MM :(
 
> 169/400 score
nice
 
@hyper-neutrino Feel free to FGITW this one :P
 
this challenge takes brain cells tho
too big brain for me
 
12:09 AM
@user well done
 
So my rep has increased by 20 because I got 2 upvotes. But my rep notification thingy isn't showing the green +20 :(
 
@RedwolfPrograms what for?
 
Silver code golf
 
(or acknowledging that I've gotten +20 today)
 
Nice
 
12:21 AM
Please do not get mad with me about my new pfp
 
The old one is better
 
I wanted a change
And amogus
 
beautiful
 
*sus
Ftfy
 
Is this a valid use of the "nuke user" button? :p
 
12:29 AM
No because that would be sus
Meaning the person pressing the nuke button would be the impostor
 
This is a total missed opportunity
Should've used ais523's waterfall model
I got super excited when I saw the title because that's what I thought it was
 
Lol
 
2
Q: Quote a rational number

caird coinheringaahingQuote notation[1] is a way of expressing rational integers in a precise, finite manner, based on the concept of \$p\$-adic numbers. The notation is in the form of a string of digits (\$0123456789\$) containing exactly one "quote" (a \$\newcommand{'}[2]{#1\text{'}#2} \text{'}\:\$) and one "radix p...

 
I'm actually seriously annoyed that the video missed that opportunity
 
well, we gotta make our own now :P feature it on the CGCC blog in the future
 
12:37 AM
It would have been so cool to have esolangs.org in a video seen by thousands and thousands of people, because anyone who's interested enough would probably stumble across CGCC (and they'd be the "answer questions in an interesting language with a lot of work put in" type too, not the "I saw this site on hackernews and want to duplicate the challenge I saw but worse")
 
well now we need one of y'all to become a popular youtuber and then use that as a way to introduce codegolf properly as someone in the community itself, and bring popularity to CGCCSE :P
 
@RedwolfPrograms kind of already done
@hyper-neutrino ^
 
2.35k subs, as opposed to a video collaboration between two very well known math/science yters
Also why is the esolangs.org symbol three slices of a lime?
 
@hyper-neutrino that's sus
 
12:46 AM
no u
 
Yes
That's the point
 
@OldSandboxPosts Does anyone else feel slightly called out when one of their posts shows up on OSP? Happened yesterday to me and it felt like it was saying "Why haven't you been working on this, huh???" :P
 
@cairdcoinheringaahing quite the opposite
I see it as "you've waited long enough, it's time."
 
Does Jelly's Ær (roots of a polynomial) work with polynomials with a degree higher than four?
 
Yes
But it's known to have precision issues with non-integer roots
 
I'm just going to pretend those don't exist with Ash's implementation
 
1:03 AM
@cairdcoinheringaahing example?
 
It's probably not a very common thing to need to do anyway
 
I can't be bothered to find a better example, but multiple "recent" commits have been trying to fix its precision errors
 
how is 0 a root of the polynomial?
 
x(3x-10) = 3x^2 - 10x
 
wait so it's 0x^3 - 10x^2 + 3x + 0 not 0x^2 - 10x + 3?
 
1:07 AM
Yep
Largest order to the end
 
oh wait
dang
wrong order
sad.
my flex wasted.
 
But do you have a roots-to-polynomial builtin as well?
 
probably not yer
*yet
 
Boo, amateur :P
 
welp time to steal more jelly code
 
1:13 AM
CMC: Given an integer n, return the polynomial with n roots equal to 1, 2, 3, ..., n. e.g. 1 -> x-1, 2 -> x^2-3x+2, 9 -> x^9-45x^8+870x^7-9450x^6+63273x^5-269325x^4+723680x^3-1172700x^2+1026576x-362880
Any reasonable representation of a polynomial is fine
 
well, there's the obvious RÆṛ :P
 
1:28 AM
@cairdcoinheringaahing 3 bytes in vyxal too. ɾ∆ṙ
 
really crappy non-builtin jelly solution, ×þµŒdṙḢL$Ṛ§¶RN1,Ɱç/ (19 bytes)
 
1:41 AM
@hyper-neutrino Can mods talk in frozen rooms?
 
yes I believe so
just tested, we can
I can freeze rooms to say things without letting people be able to interrupt me (just like RO timeouts, but even ROs can't talk when I freeze)
though timeouts are usually good for that unless the ROs themselves are causing problems in a room
 
I found a hacky work around for ROs to chat in frozen rooms: edit the room name/description. You can't then edit to audit message, but you can say what you want in the char description :P
 
Hello, have TNB have been any day frozen
 
That was the last time TNB got frozen
 
1:48 AM
freeze was 7 days back then too right?
 
No, but if there isn't a message a few hours after a room is unfrozen, it gets refrozen
 
TNB was somedoay frozen oO atleast
Is giving antifreeze messages to room allowed
 
If we go 13 days without activity, by all means post antifreeze
@cairdcoinheringaahing O.o
 
posting antifreeze is a good idea if we somehow ever get to that point because this room should never be frozen, so if it somehow does, contact me somewhere else or flag a post on main for me to unfreeze it
 
1:51 AM
but don't talk just for the sake of talking, lol. silence is fine
 
We went 9 months without a single message back in 2011
 
Yes sometimes silence is needed
 
@cairdcoinheringaahing o.O
 
What? 9 months
 
Oct 26 '11 at 16:42, by Chris Jester-Young
One day, this room's gonna become a permanent freezer. ;-)
Get wrecked CJY :P
 
1:52 AM
Does room activity increases by time?
 
Not typically
This is a special room, as it's our "site room". Most SE sites have a specific room which is for "General discussion for site.stackexchange.com", and they're generally more active as older users are replaced by newer users
For example, The Second Monitor (CR), You Are Here (Travel.SE), The Restaurant at the End of the Universe (SciFi.SE), The Sphinx's Lair (Puzzling.SE), The h Bar (Physics.SE), The Bridge (Arqade), Root Access (Super User), The Water Cooler (IPS.SE)
The pun names are half the fun :P
 
 
4 hours later…
5:48 AM
okay so when putting flags in the answer header, how should they be formatted?
is it Language, flags, bytes or Language flags, bytes
 
I think it makes sense to write it as # Vyxal s, 13 bytes
or maybe # Vyxal + s, 13 bytes
 
huh, TIL
 
your flags don't come with the - right?
 
they dont
 
okay. i'm pretty sure there isn't a standard and idek if there's a convention by popularity but I think those two would make sense
 
5:50 AM
I always have just put commas between lang name and flags and no one has ever said anything
 
I mean, that makes sense too
 
comma looks wrong to me
the advantage of no comma is it mirrors actual invocation
 
it's quite clear what you mean, though the commas look kinda out of place to me, but it's not like the format's annoying, cluttery, or misleading. it's just like, a different way of communicating the same info lol
^^ that too. i tihnk that's why i find it most natural to write it without any separator like +
 
6:08 AM
Should the flag be formatted as code?
 
IMHO, yes. Makes it clear it's a flag and not a new langugae called "Vyxal s"
oh another thing is that "Language + stuff" is usually used for extensions
for example, when i use requests, I have to specify "Python 3 + requests" because it's not in the standard lib apparently
so I think for flags it would make sense to say "Vyxal s", since, like unrelated string said, that's how you would actually call it on the command line
 
0
A: Sandbox for Proposed Challenges

pxegerSolve the Alien Probe puzzle code-golf array-manipulation Introduction In this TED-Ed video (which I'd recommend watching first), a puzzle is presented. 27 unit cubes must be painted with one of red, green, or purple on each face, so that they can be reassembled into a large 3x3x3 cube that shows...

 
 
2 hours later…
7:55 AM
0
A: Sandbox for Proposed Challenges

EnderShadow8Given a string, output a Brainfuck program that outputs that string. Pretty self explanatory. https://en.wikipedia.org/wiki/Brainfuck Code golf, so shortest program in bytes wins.

 
31 seconds for a spam nuke. not bad, though i could've been faster if i had my browser focused instead of my editor at the time
 
Its exactly what the OP is looking for
And it should be a code challenge on the size of output
 
Pretty sure this is a dupe. Output any program would be extremely boring. Output the shortest would require proof of optimality. So, it shouldn't be code-golf, in which case, it may as well just be a trivial extension of this
 
8:13 AM
An interesting fact, there are so many unimplemented esolangs in esolangs.org, we can write so many challenges from them!
 
most of them are kind of not great
 
some are good
like this is moderatly esolangs.org/wiki/ABC good
 
well, someone would need to standardize an interpreter first for it to be allowed
ABC could be used as a troll language for some KCs and trivial random challenges but it's really not any more interesting than any other similar language like evil or whatever
and every program is either non-deterministic or static
also ABC is implemented
 
8:31 AM
0
Q: Write an ABC interpreter

WasifABC ABC is an esoteric programming language and it is accumulator based. It has 9 commands: a - Increment the accumulator b - Decrement the accumulator c - Output the accumulator d - Invert accumulator r - Set accumulator to a random number between 0 and accumulator n - Set accumulator to 0 ...

 
oh you meant as an interpreter challenge
 
How would you convert an arbitrary string to an integer in python?
E.g. “Hello”
 
depends
 
if it's just letters you can use base 36, though that doesn't work with case
you can just use a high enough base to do it to any string tho
 
could do base 256 on the bytes of the utf-8 representation
 
8:43 AM
I mean, in that case you could just look at the bytes of the utf-8 representation and interpreter that as a number, lol.
 
exactly
 
@cairdcoinheringaahing The mods-only room is in fact frozen, since January last year
we just haven't bothered to unfreeze it (though i guess it would be nice to be able to see it on the room listing without explicitly enabling frozen rooms
 
Oh that's funny, I never noticed that lol. I suppose it doesn't matter when everyone who can even see the room can just talk through it.
I have it bookmarked but it doesn't make sense to not unfreeze it
granted, it might just get frozen in two weeks again
 
8:59 AM
WOW i have reached my 200th answer!
 
9:12 AM
sup guys
I'm making a maze
in Python
 
How about if we know it is lower and upper case ASCII letters only?
 
@Anush know what is ASCII letters only
 
@StackMeter for a CGCC challenge?
 
@Anush then technically you could use like base 62, i guess? (in which case just use base 64 lol)
what's this for, anyway
 
@Wasif no
because I can
 
9:25 AM
@RedwolfPrograms I spent £4.20 this morning, thought you would approve
 
@Neil ;P
 
@NewMainPosts so basically the inverse of codegolf.stackexchange.com/questions/222882/…
 
Are there any free servers for hosting Flask? except Pythonanywhere
 
what's Flask
 
@Wasif Google App Engine
@StackMeter A web framework for Python, for making API servers etc
 
9:31 AM
ok @pxeger
 
@StackMeter flask is a lightweight web framework using python
 
oh i got ninja'd becoz of network
 
codegolf.stackexchange.com/questions/224309/… did this challenge use the sandbox?
 
no
I was too lazy
to post it in sandbox
 
9:40 AM
please use the sandbox
 
i feel like it's overall more effort to address questions as quickly as possible while explaining why you didn't use the sandbox than it is to just use the sandbox
 
@hyper-neutrino I am implementing the hyperloglog sketch
 
@hyper-neutrino oh by the way, my question has an upvote now
 
@UnrelatedString exactly
 
@StackMeter what question
 
9:48 AM
@Wasif this one
 
get one more
 
is 2 upvotes good enough to post the question or no
 
lol are you in a rush
wait 2 more days
 
0
A: Sandbox for Proposed Challenges

PureferretDeath-onacci sequence (WIP) The traditional Fibonacci sequence grows forever: 1 1 2 3 5 8 13 21 ... 1,346,269 ... and is given by this formula: f(n) = f(n-1) + f(n-2) where the initial numbers in the sequence are 0, 1. However, there's a set of as-yet unnamed sequences, where a previous number ...

 
@Razetime no it's good
 
ccool
 
Can I get some feedback on this? codegolf.meta.stackexchange.com/a/22151/77516
I also have a kind of feeling that this is a dupe but I searched as far as I could and couldn't find anything similar.
 
It doesn't sound dupey to me but having someone else search would definitely be a good idea
 
10:21 AM
0
A: Sandbox for Proposed Challenges

pxegerHow many Faro Shuffles for a cycle? code-golf array-manipulation card-games Background Inspired by this video by Matt Parker A Faro shuffle is a perfect riffle shuffle where the deck is exactly interleaved with its other half. This is how to perform one: the deck of 52 cards is split into two pi...

 
11:14 AM
@NewSandboxedPosts hey all, this has been updated (though it's still WIP, because we don't have instructions on it yet). Any thoughts?
 
@JoKing As in the Teacher's Lounge or the CGCC mod room?
 
 
1 hour later…
12:34 PM
0
Q: Pretty-print my BQN Arrays

RazetimeMarshall Lochbaum's online BQN REPL has an interesting(and aesthetically pleasing) method of displaying arrays. Your task is to implement a version with simpler rules. [2,[3],4,[[[6,[5],7]]]] becomes: ┌─ · 2 ┌· 4 ┌· · 3 · ┌· ...

 
12:46 PM
Redwolf: *posts a single byte answer in jelly, fgitw, gets 4 votes*
Me: *posts same answer but in Vyxal an hour later and gets 10 votes*
 
1:00 PM
i think the difference is obvious
 
What is the difference?
 
1:18 PM
Vyxal is more swag
 
Lol
 
@Lyxal It does look swag
 
@AncientSwordRage :D thank you!
 
1:48 PM
I should really start making mine
 
2:23 PM
@AncientSwordRage cool whats your idea
 
@cairdcoinheringaahing Nitpick: The Water Cooler's for Workplace.SE
 
Mapping two letter combinations of QWERTYUI onto functions and then calling them sequentially... It's a bit of a dumb/joke language
 
2:55 PM
@user Yep, IPS is the Awkward Silence, my bad
 
3:08 PM
@AncientSwordRage I'm not sure whether the "first 31" will make answers more interesting that the standard rules or not, it'd be interesting to see
 
3:24 PM
@cairdcoinheringaahing I'm not familiar with those
The 31st Fibonacci number is the first one over 1M
 
@AncientSwordRage From the tag wiki:
> The answers can use one of the following input/output methods:
Given some index n it can return the n-th entry of the list.
Given some index n it can return all entries up to the nth one in the sequence.
Without taking any index, it can return a (potentially infinite) lazy list or generator that represents the whole sequence.
 
👍🏻
 
Also, your table shows the first 32 M-Death-onacci numbers, as you've indexed from 0
But it looks like a good challenge :) I gave it a shot in Jelly as a baseline and it came out at 18 bytes, which is longer than I expected
 
3:53 PM
@cairdcoinheringaahing that is promising
@cairdcoinheringaahing hmmm, I wonder if I should count that as part of the sequence of change it to the first 32
 
0
A: Sandbox for Proposed Challenges

pxegerThe Printer Booklet Sequence code-golf sequence integer You may know of a "booklet" setting often present on printers, where the pages are printed in a way that they can be simply folded down the middle so that the pages are in the right place to form a booklet, as demonstrated in this diagram: ...

 
4:26 PM
3 messages moved to Vyxal
 
thats useful thx :-)
 
4:39 PM
Idea: instead of changing the QWERTY keyboard layout to match the letter frequencies of English, change English to match the ease of use of the letters on the keyboard
Use tr etaoinshrdlcumwfgypbvkjxqzETAOINSHRDLCUMWFGYPBVKJXQZ fjdkrueislghatyqowpvcnbmxzFJDKRUEISLGHATYQOWPVCNBMXZ <<< 'string to translate' to try it out
R jirun jif Urufjffuji Vwjf eikagl eyrjhi jk aeruo jire ufy gduoadof qskt uky ku
 
5:04 PM
@NewSandboxedPosts huh, I could have sworn I had a challenge along the same lines...
@pxeger is that the Dvorak keyboard or something you made up?
 
@Neil totally made up lol
 
0
Q: Is a compiler needed if a language would run unreasonable time for most questions?

l4m2It's possible that a language can only do lots of brute force, even for quite simple questions

 
5:36 PM
I love that we have a tag :P
 
> The understanding exceeded the 60 second time limit and was terminated.
Anyone know what this comment was supposed to mean?
 
Maybe a joke that it took them too long to understand?
 
I guess so. It was around the same time as a downvote on the question, which is quite annoying.
If there was something unclear it would be much mnore helpful to explain that
And if they just don't want to take the time to understand it, that's not really a reason to downvote
 
They may not have downvoted
 
I guess so
 
5:44 PM
@RedwolfPrograms I'd nominate Yggdrasil for your interesting languages bounty, but I want to find a non-trivial example program and it's surprisingly hard :P
 
 
4 hours later…
9:24 PM
1
Q: Sum over an Interval

UnderslashInspired by this challenge, and similar to this and this. After seeing these, I figured I would continue the trend as there was no inclusive/exclusive sum. The goal here is to sum an interval of integers, either inclusive and exclusive, and output the total to stdout. Input format: either a ( or ...

 
@Lyxal Idea for the Vyxal tips: (ab)use command line flags. I'd add an answer but I'd just be restating the info in the h flag
 
9:48 PM
Good afternoon
 
bonjour
 
Just to get some activity, here's a CMC: Interleave an arbitrary number of arrays
@hyper-neutrino Beware, you don't want to start another French conversation here, especially not with pxeger around
 
@NewMainPosts I have literally no idea how Jonathan's answer works
@user Example?
 
@user is this valid
 
@cairdcoinheringaahing well, the first part is it gets the inclusive range
 
9:52 PM
@cairdcoinheringaahing What HN had works
 
and then the rest i guess is some magic with the brackets
 
Vr/ḟ×ɗċⱮØ($ is Dennis-level magic :P
 
@UnrelatedString That's pretty closed to what I guessed: the first part is magic and the rest is magic
 
Vr just goes with the ḊṖ lol
 
ċⱮØ($ is "count the number of brackets". That's then passed to r/ḟ×ɗ with the pair on the left
 
9:53 PM
ḊṖVr/--remove the brackets, eval, reduce range
ɗ only groups three
 
@UnrelatedString r/ is part of ɗ
 
...wait what
hmm
wait yeah how did i read that wrong
 
Then some dyadic chain parsing-fu with a monad, dyad, dyad and the range and the counts as arguments
 
but yeah conceptually ḊṖVr/ still goes together, the ḊṖV just also gets multiplied
it
ohhhhhh
okay that makes so much sense now
 
9:55 PM
because the multiplication zipwith vectorizes with the count of the opening bracket and closing bracket
 
Ohhhh
I just got it
Holy crap, that's genius
 
it filters them out depending on the presence of the brackets
i was thinking of something like that but he did it so much better
 
And I got outgolfed when I was one upvote away from capping :(
 
how do you have +191
 
How do you get +191?
My rep page and my rep drop down both say +190
 
10:04 PM
@user APL, 21/too many bytes: {1-⍨0~⍨,⍉↑1+@(0∘≤)¨⍵}
@cairdcoinheringaahing Something you downvoted got removed?
 
@user Can you transpose, then flatten instead?
 
@cairdcoinheringaahing That's exactly what ,⍉ does. The rest of it is just dealing with zeroes :P
If zeroes weren't in the input, it'd be ,⍉∘↑ or something like that
 
@user Yep, but I downvoted it today and it got removed today
So no net rep change
Speaking of deleted posts, any 10k+ users want to cast some VTDs here?
 
math
 
10:07 PM
opening it in incognito shows +190... is this some inconsistency with mod tools?
 
Can a non-mod repo that?
Incognito shows +190 for me as well
 
Non incognito shows +190 for me (as does private)
 
@hyper-neutrino Mod powers at fault here :P
 
opening it in incognito and expanding the dropdowns when grouping by post shows the exact same screen as it does when i'm logged in with the only difference being that it says +190 in incognito and +191 on my account
................................................
 
report on MM?
 
10:09 PM
The - is next to ; on your keyboard?
 
They're in the general vicinity of each other
 
10:35 PM
I'll award a +100 bounty to an answer to this that uses a golfing language
 
10:54 PM
@cairdcoinheringaahing The CGCC one
 
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