The Nineteenth Byte

Redwolf Programs

16:01

I'd gladly join any effort to coordinate sandbox reviewing

I can host bots and make scripts too, if either of those would be necessary

Wasif

is there any new meta event going on

Redwolf Programs

The blog is the main project at the moment

Wasif

oh

Redwolf Programs

This is the room where we're coordinating things if you're interested in helping out (or just looking around)

hyper-neutrino

@Wasif nothing new atm. the only recent meta activity was this discussion but it's a very solid consensus and has been converted into a feature-request to update our site

Wasif

16:07

Well i need a small help
In this string:

ach]ievable,ieve,ieved,ievement,ievements,iever,ievers,ieves,ieving,ache

I need to get the elements where first 2 characters start with same character

And turn string into

achie]vable,ve,ved,vement,vements,ver,vers,ves,ving

And get the ache seperately
Is there any "simple" regex to do that
I am weak at regex please help

I want to do this in python

pxeger

I don't think regex is the right tool for the job there

Wasif

I have a normal solution already just asking if a regex is possible

Wezl

I think it is

Redwolf Programs

I'm not sure exactly what you're trying to do

> first 2 characters start with same character

pxeger

He means where all the strings share a common prefix

Wasif

16:10

@RedwolfPrograms ievable, ieve

Sorry for grammar mistake

Err I can't even edit now :-(

pxeger

There isn't a way to keep references across separate matches. You could try something like /^(..).*\n(?:\1.*\n)*\1.*/m

But that only works for contiguous strings of the same prefix

Wasif

that didn't work unfortunately

hyper-neutrino

like, why does it not work to just do achie(vable|ve|ved|...) or smth

Redwolf Programs

I am running the most cursed stack right now

Chrome OS, Linux VM, Nginx

pxeger

that's not massively cursed

could be a lot worse

Redwolf Programs

16:21

I'll download PHP then

Wasif

what could be the worst?

I suppose CGI

pxeger

Chrome OS -> Linux VM - > Perl -> Regex interpreter -> C to Regex compiler -> Nginx -> PHP -> Regex -> HTML Parser -> Curl -> Some website serving screenshots of the screen of a remote PC every second -> on that remote PC, Android emulator -> Termux -> SSH -> Another Linux PC -> ...

I could go on

Redwolf Programs

My school district actually did, at least for some time, run perl as CGI on an outdated apache release on a scientific linux VM on windows servers

With IIS involved somewhere

pxeger

Another Linux PC -> Windows VM -> Remote Desktop -> Mac -> Bootcamp -> Windows -> Windows Subsystem for Linux -> telnet -> SMTP server -> buffer overflow vulnerability allowing Remote Code Execution -> netcat reverse shell -> Powershell remoting -> a Windows Server 2003 -> IIS web server -> CGI -> Ruby -> Metasploit framework -> more exploits ...

Wasif

I am having goosebumps

Redwolf Programs

16:27

They had ruby involved somewhere too

Wasif

oh also should I post a challenge on bhutan flag?

user

Looks kinda complicated

pxeger

very

Redwolf Programs

Yeah, that dragon is not going to be easy to draw

pxeger

What about Nepal? Has that been done before?

Wasif

16:30

then it would be challengeing?

user

Nepal;s flag is kinda unique

Redwolf Programs

@Wasif Not challenging, annoying

pxeger

You don't want it to be too "challenging"

Redwolf Programs

There's a difference

Solving a complicated math problem is challenging. Multiplying several thousand numbers with a hundred digits each by hand is annoying.

hyper-neutrino

it's the difference between a proper challenge and how the education system challenges students

Anush

16:32

I feel we should have a hyperloglog challenge

Redwolf Programs

Any feedback on Determine if a dot(comma) program halts;

oops that's not the correct punctuation mark

Haha get it? Because it's called dotcomma?

That was totally a joke.

The "x messages moved" thing is quite annoying

I wish moving deleted messages wouldn't show that

hyper-neutrino

there is sort of a way around it though

user

I don't think you had to move them at all

@hyper-neutrino Delete that message too?

hyper-neutrino

you can just edit the message lol

pxeger

If only you could move the "moved to trash" message to trash :þ

user

16:41

@hyper-neutrino Still a meaningless message :P

Redwolf Programs

But you can make it relevant I guess

hyper-neutrino

well if you have something you want to say you can just move messages out and then edit to say that so you pretend it didn't exist

i shouldn't have moved redwolf's move message now there's no context for what he said. oops

Redwolf Programs

Wait am I still a room owner in the box of grains of silicon dioxide?

hyper-neutrino

and i'm not gonna move it back cuz that'd just be stupid

user

Yeah but it doesn't look like either of you had anything important to say /s

Wezl

16:42

Cats. Cats are always relevant.

hyper-neutrino

@RedwolfPrograms it is now called "frick" and is entirely owned by vyxal corporation

user

Very funny

pxeger

@RedwolfPrograms you mean La boite qui contien beaucoup de petits granules de sable?

user

@Wezl only because they're evil.

@pxeger C'etait pas le sable, c'etait silicium.

Wezl

@user touché

pxeger

16:43

@user ouais ouais peu importe !

user

@pxeger Sacre bleu! Tu es baguette baguette!

Redwolf Programs

Mar 28 at 19:20, by rak1507

oui baguette

I'm just going to post that to main it seems good enough

pxeger

@user yeur meuzeur was enne amstère ende yeur fazeur smelte ove eldeurbeuriese

user

What's amstere supposed to be?

Wasif

hey arrête d'écrire en français

s'il te plaît

user

16:47

@Wasif Non.

@Wasif S'il vous plait

pxeger

@user hamster

Context

Wasif

alors je dois continuer à utiliser google translate

Wezl

deepl est supérieur

pxeger

ou, même, on pourrait utiliser son cerveau...?

user

@pxeger Ah, merci. Je vais m'amuser avec ca maintenant

Wasif

16:50

ah everyone is back to english :-)

pxeger

Das ist nur was wir wöllten, dass du denkst!

Redwolf Programs

Prolonged non-english in this room isn't good or allowed anyway, so that's good

user

@Wasif Non, c'est "Liberte ou La mort!"

pxeger

Liberté

user

I don't have an international keyboard

pxeger

16:52

How come italics on messages get applied instantly but all other formatting takes a second?

user

Why do deleted messages not get removed immediately and just show "(removed)"?

Redwolf Programs

To preserve evidence that there was context I suppose

Wasif

??? i can't understand your question

pxeger

So you know there was a message there, so linked replies still work?

user

Oh ok

Redwolf Programs

16:54

Imagine if someone said "my dog died" then someone said "it's my birthday" then someone said "that's nice" then the second message was deleted

Wezl

context that is deleted for the people reading the transcript who really need it

pxeger

@Wasif 'Why do they show a placeholder "removed", instead of disappearing completely?'

Wasif

oh i see

thats a bad UX

user

Oh wait have I been spamming chat by deleting all those messages?

Redwolf Programs

A better thing to do is not to post delete-worthy messages in the first place :p

user

16:55

That's hard :(

pxeger

@user also so moderators can still click on them and see the history?

Wasif

how would a userscript fizzbuzz program pseudocode will look like

- Create user, set rep to 1
- If rep%3==0 and rep%5==0
- set name to fizzbuzz
- Else if rep%3==0
- set name to fizz
- Else if rep%5==0
- set name to buzz
- Else set name to rep property
- Output name property
- Increment user rep by 1
- Loop until rep == 100

Any improvements?

And is the language supposed to work this way

hyper-neutrino

well it depends on what functionality Userscript has

Wasif

@hyper-neutrino its storage system is users :P

no stack or other things

New Main Posts

2

Q: Determine if a dot(comma) program halts

Dotcomma is a simple esolang I made a while ago that only uses four operators: [.,]. In this challenge, you'll interpret a dotcomma program consisting only of [.]. This means there is no input, output, or queue, making it possible to determine if any program halts. Blocks: Any code wrapped in [] ...

Redwolf Programs

17:02

I hit 10 repcaps recently and didn't even notice

Are there any websites which let you send someone redeemable brownie points?

user

I hit 1 0 repcaps recently and ~~didn't even~~ noticed

5

@RedwolfPrograms Try a cryptocurrency

Wasif

@user it should be 10 instead of 1 think

Redwolf Programs

It'd use PoY, Proof-of-Yumminess

Wasif

You are gonna getting socratic badge before me, if I don't take immediate action and rapidly post all ideas I have in mind

user

@Wasif I couldn't make the strikethrough appear without a space between them. Just pretend it looks all right :P

Wasif

17:05

well how do you strikethrough here?

pxeger

---text--- ~~text~~

user

---foo--- ~~foo~~

pxeger

haha get ninjaed!

Redwolf Programs

I'm nine reviews and one announcer badge away from having every bronze badge still possible on the site

pxeger

@RedwolfPrograms still?

Redwolf Programs

17:07

Precognitive, tumbleweed, and analytical

One no longer obtainable and two retired

hyper-neutrino

→ 12 messages moved to Trash

Wasif

good night

Wezl

good night

Redwolf Programs

~~Maybe I should buy some btc and hire a botnet to get me announcer~~

For legal reasons that's a joke :p

pxeger

I might go fork dogecoin to make a cryptocurrency called Brownie Points now

Wezl

17:10

make it in the past so people will have been promising real money for decades

user

imma go learn Jelly so I can steal money from caird now /s

caird coinheringaahing

18:03

@RedwolfPrograms Nope, deleted messages aren't even shown in the transcript

I suppose they use (removed) so that there's some evidence that there was a post there

hyper-neutrino

it does show in the transcript though

obviously not in undeleted form

caird coinheringaahing

@hyper-neutrino Not to us regular users

hyper-neutrino

...

you know, i would've thought that if this were mod-only, the message itself would just appear with a note that it's now gone. though i suppose that might not be a good idea in case something sensitive/disturbing were posted

caird coinheringaahing

Screenshot

hyper-neutrino

yeah i just opened incognito and can confirm, am not very smart

caird coinheringaahing

18:07

¯\_(ツ)_/¯ Just Mod Things™

hyper-neutrino

that's weird then. idk why they don't show up; if the point is so now-removed context is known to exist, then it would make sense for all users to see it, and if that's not the point, then it should just disappear from the room itself probably. idk. there's probably some design reason behind it

though it's SE, so there very well may not be a real reason lmao

caird coinheringaahing

They considered allowing ROs to see it, but declined that :(

@user 10 year old feature request

Wezl

@cairdcoinheringaahing should I bounty it?

caird coinheringaahing

@Wezl If you want it changed that much, sure. But I doubt you'll get any response

I honestly can't remember the last time they changed anything about chat

meta.stackexchange.com/questions/tagged/…

That link has the list of [status-completed] [chat] [feature-requests] on MM, sorted by newest. The newest is from 2018, then 2016

Wezl

18:22

we should change it to bug to get attention :)

Redwolf Programs

They still wouldn't care

caird coinheringaahing

Behold my flowchart skills :P

Redwolf Programs

No no no, it's Q2 now, so they no longer pretend to care about new users

Now they pretend to care about review queues

caird coinheringaahing

TBH I kinda like their Q2 roadmap

Top Mod-Only Page Guidance, Open Source/Community Driven ads, Three Vote Closures, Area 51

That all sounds great

Redwolf Programs

Do we need three vote closure?

caird coinheringaahing

18:30

I'd like to have it on "off-topic" VTCs

If it can be applied to specific close reasons, it'd be helpful in quickly closing and deleting spam

I think it might negatively affect "vtc as unclear", but if they're also changing the reopen votes to be 3, that might help mitigate it

Redwolf Programs

Lowered reopen votes needed would be really nice

There always seems to be a lot more people around to close things than to help clean up after :p

Wezl

@hyper-neutrino here's some gwift sauce for you

hyper-neutrino

some what

Redwolf Programs

Dream did hunter vs. 5 speedrunners lol (premiere in 30 mins but I'll miss it)

Wezl

CMC: find a pronounceable permutation of FGITW

(or FGIW or something similar)

Redwolf Programs

18:36

fuh-GIT-wuh is the obvious one, but it sounds kind of dumb

(or fuh-JIT-wuh)

hyper-neutrino

you could use eff- instead of fuh- but the -wuh part is what sounds dumber imo

@RedwolfPrograms is that typo or is it actually 5 runners to only 1 hunter

Redwolf Programs

I think it's a typo I don't know

Lemme check

Yeah it's a typo

> Dream premiering in 30 minutes: Minecraft Speedrunner VS 5 Hunters

I guess if cheat a bit, you could get /fʒiwət/ (G as /ʒ/ and the T and W swapped)

caird coinheringaahing

@Wezl 100% wrong, but Fug-wit

Redwolf Programs

Sounds like it'd be some sort of obscure british insult

caird coinheringaahing

Well, there is the similar sounding (sorry for the language) fuck-wit

Redwolf Programs

18:44

Actually that works as a pronounciation for FGITW :p

caird coinheringaahing

Calling a mate that is how you know you're friends :P

@RedwolfPrograms "Hey, lemme just fuck-wit the new challenge" :P

user

18:57

FaGuITeW

Or perhaps eff-git-ev

@pxeger Did you figure out how to get the old icons back?

I switched off all the browser.proton.* stuff, but the icons persist

pxeger

19:27

@user I don't think it's possible without rebuilding firefox

user

Oh ok

nvm then, it's not a big enough inconvenience for me to do something like that

hyper-neutrino

19:41

considering a challenge idea in case i need to post one to cap: given a list of n coefficients {a_i}, consider the sequence starting with {b_1, ..., b_n} such that b_k = a_1b_(k-1) + a_2b_(k-2) + ...; find the Qth value of the sequence

fastest code

do y'all think this would work? obviously i'd spec it formally but is it done already + would it be interesting enough?

pxeger

I feel like something similar has been done already

like generalised recurrence relation sequence stuff

hyper-neutrino

actually as a fastest code this would probably be boring cuz it'll just turn into "exponentiate this matrix" lol

caird coinheringaahing

20:13

Haha, got in a VTC a fraction of a second before you @hyper-neutrino :P

Redwolf Programs

Why on earth did I make a bunch of graphs with logarithmic scales on both axes

hyper-neutrino

... brilliant. lol

what type of graph tho

Redwolf Programs

Scatter plots and bar graphs

caird coinheringaahing

@RedwolfPrograms Just have a log scale on one and a loglog scale on the other :P

hyper-neutrino

i think for scatter plots that could make sense? maybe?? i forget how it works

Redwolf Programs

20:27

I even had the brilliant idea to put them on meta: codegolf.meta.stackexchange.com/questions/18262/…

user

I always adjust the scales on my graph so none of the data is actually visible.

caird coinheringaahing

@NewMainPosts ROs should have the ability to edit Feeds message, CMV :P

hyper-neutrino

+1

user

@cairdcoinheringaahing Call Me Victor? Sure :P

caird coinheringaahing

I'd open a MM feature-request, but I've gotten more rep from MM in the past 2 days than from CGCC so I might need to pull back a bit :P

@user I literally have 3 different names you can call me in my profile, and none of them are Victor :P

user

20:30

@cairdcoinheringaahing You really need to update your profile with your real/preferred name, then, Victor :P

caird coinheringaahing

@user Updated my (chat) profile with my preferred names :P

user

I don't see a single name starting with V there (ノ°Д°）ノ︵ ┻━┻

caird coinheringaahing

Any feedback?

ZippyMagician

It seems pretty good, but I feel like abc...z' = – abc...z/999...9 this bit mentioned in wikipedia would make it a bit easy, unless that's what you're going for

although im not really sure

im probably vastly underestimating the question

caird coinheringaahing

@ZippyMagician Personally, I've never liked that "definition" as it implies that they're finite, and I don't think it helps understand them any more than the other definitions

I can edit it in if you think it'd improve it though

ZippyMagician

20:46

no, I agree that it makes them seem simpler than they are

on the other hand, you're going in reverse, the fraction to the notation

I think leave it the way it is

after going over it I feel like this'll get larger answers, so I don't think that "shortcut" is important at all

caird coinheringaahing

Yeah, if method going by hand is any indication, I doubt this is a "who can ninja a golfed answer first?" kinda challenge, which'll be a nice change :)

Redwolf Programs

It seems that the score of a challenge tends to be roughly proportional to the square root of the view count

caird coinheringaahing

That makes sense

As it hits the HNQ, it gets more views from anon users who can't vote

Redwolf Programs

x axis is score, y is views, more views lower down

y is sqrt of views actually

caird coinheringaahing

Sorting my challenges by descending views, the scores are 104, 64, 64, 32, 30, 36, 33, 28, 31, 39

The rest have <4k views

Redwolf Programs

20:53

When I get home I'll make a formula to determine the quality of a challenge regardless of its view count

Maybe I can make it a preset for Question Reception

Also that graph would also be a good placeholder for blood splatter textures in a video game :p

Anush

CMC count number of trailing zeros in binary representation of an integer

Redwolf Programs

Least or most significant?

Anush

Least

user

Mod 2 followed by bitcount should do it, I think

Redwolf Programs

Ash has a one byte built-in for that lol

Ḃ IIRC

Anush

20:58

As many different languages as possible please

caird coinheringaahing

@Anush Jelly, 2 bytes ọ2

Anush

:57752
Let’s see if we can get to five

@cairdcoinheringaahing nice!

user

@user nvm that was a dumb suggestion

Anush

@user no problem!

user

@Anush Looks like you accidentally cut off the reply part

Anush

21:02

Oops

What is it in python?

caird coinheringaahing

21:19

@Anush Thanks for the inspiration, I just posted a similar challenge!

caird coinheringaahing

21:40

@Anush Here's 71 answers

New Main Posts

1

Q: Count the trailing zeros

Given two positive integers \$n\$ and \$b\$, such that \$n > 2\$ and \$n > b > 1\$, count the trailing zeros when converting \$n\$ to base \$b\$. Your program should be able to handle any value of \$b\$ within your integer maximum. The digits of \$n = 18\$, \$b = 3\$ are \$[2,0,0]\$, so the cor...

code-golf base-conversion

Redwolf Programs

This is the first time I've managed to post a recursion solution before Arnauld (watch me still get outgolfed by ten bytes)

caird coinheringaahing

If there's a 13 15 byte JS answer to that, I'd be very surprised :P

Redwolf Programs

Oops just realized it was invalid when I posted it because I put f= in the header lol

Wezl

this is an interesting answers:votes:views ratio

Redwolf Programs

21:51

I love how my first answer in Jelly was just a one byte FGITW that I picked up from other answers without even knowing the language lol

user

@RedwolfPrograms Now it'll be just 7 :P

Redwolf Programs

I thought there was a way to get rid of that ,d, but I was too busy FGITWing to make smart golfs :p

Lyxal

22:11

@RedwolfPrograms and it's on days like these I'm glad I raided the atoms page for built-ins

Redwolf Programs

In Ash it'd be V, although I didn't take that from Jelly. It evolved from the more specific Ḃ and Ḋ, for 2 and 10 respectively

user

Why also have builtins for base 10 and base 2 if you have one for any base? Are they used that often?

Redwolf Programs

They're also the more general divisible by two and divisible by ten operators

I figured they'd be nice to have, since I have Ċ and Ṙ, which do the same thing for 3 and 5 for FizzBuzz challenges

Unrelated String

so you're doing a husk wrt truthiness semantics and the return values of your builtins

nice

Redwolf Programs

So, I'm adding a "float to simplified fraction" operator. The problem is, things like 1 / 3 would actually be something like 341 / 1024 in the floating point representation, so I need to choose a maximum value for the denominator then just pick the closest one. Has anyone implemented a similar operator and know what the best way to do that is?

caird coinheringaahing

22:26

I'd suggest having a library of low non-terminating fractions, and analysing from there

e.g. you can figure out that 0.6666666666666667 is 2 * 0.3333333333333333 which is saved as 1 / 3, so 0.666666666666667 is 2 / 3

Redwolf Programs

What do y'all think would be a good maximum denominator? 20? 1000? 10k?

Unrelated String

you could make the maximum denominator an argument

Redwolf Programs

That adds overhead though

I'll make a two byte operator that can do that

But for a general "convert this to a simplified fraction" I think requiring another byte or two for the max denominator could be annoying

Unrelated String

yeah

i do feel like a maximum denominator may not be the way to go if you can think of some way to just weight it towards simpler-looking fractions

caird coinheringaahing

@RedwolfPrograms 1000 is likely to work for most fractions in code golf

Redwolf Programs

22:37

I think I'll go with 1024 as a default, but for really small numbers I think the maximum denominator can be much higher so that, e.g., 1 / 1000000 still works properly.

caird coinheringaahing

@RedwolfPrograms You could consider small deltas from more common fractions. For example, if it's a ± 1/1000 where a is a fraction with a denominator < 20 (ish), then it assumes the output should be a

rak1507

@NewMainPosts ⊥⍨∘≠⊤ in dyalog extended, cba to post

someone else can if they want lol

user

Don't mind if I do

caird coinheringaahing

Ugh, not another notification :(

user

22:55

?

caird coinheringaahing

Whenever someone posts an answer, I get a notification. I enjoy every part of posting a question except for that :P

Neil

23:12

@cairdcoinheringaahing here's a fourth notification for you then

caird coinheringaahing

ಠ_ಠ

:P

user

I can help you with that once I get a gold code-golf badge /s

Redwolf Programs

tfw you forget you can divide 1 / x to get a number's reciprocal and spend twenty minutes optimizing the performance of a solution that uses loops to find the closest denominator

Lyxal

when the link in the chat bio doesn't actually act as a link

caird coinheringaahing

23:39

@Lyxal I am the Lorax and I speak for the users: stop this meme nonsense :P

user

@cairdcoinheringaahing I am a user and I speak for the rest of us: you do not speak for us :P

@Lyxal What's that song supposed to be from? (or did you just write it yourself?)

Redwolf Programs

There's a worrying theme going on with Vyxal being a corporation taking over things...first the chat room gets stolen, then the song from the Lorax...

user

Oh nvm

Redwolf Programs

@user Illumination's awful Lorax movie

user

Yeah I should realized that after seeing caird's comment

caird coinheringaahing

23:42

@RedwolfPrograms I think you mean "the glorious abomination that is the greatest movie ever" :P

Any final feedback? Thinking about posting later

user

Looks good to me, although I can't understand the math

caird coinheringaahing

Yeah, it's not easy to wrap your head around without some experimenting

user

It's never easy to wrap your head around anything

Unless you're a snake, I guess, although I'm not sure how much of them counts as their head

Redwolf Programs

I think their heads are actually kind of distinct from the rest of them

user

Are they flexible enough to wrap around something, though?

Redwolf Programs

23:47

No :p

caird coinheringaahing

My dog currently has his head wrapped around a pillow

Redwolf Programs

If you count necks as part of heads, giraffes might be able to do it

user

Nah, that's cheating :P

@cairdcoinheringaahing Your dog must have an...interesting head. Either that, or the pillow can bend space :P

Redwolf Programs

Giraffes fighting with their heads as weapons

caird coinheringaahing

Well, it depends on the difference between head and neck I suppose :P

user

23:49

@RedwolfPrograms :(

That's enough violent, fictional creatures for today. How about a CMC involving interleaving an arbitrary number of arrays?

Lyxal

@RedwolfPrograms the original is arguably better

Also, how much ash work did you get done?

Redwolf Programs

A small amount

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Closest Binary Fraction code-golf math rational-numbers For this challenge, a binary fraction is a fraction where the denominator is a power of two. Your program (or function) should take a rational number as input, and return the nearest binary fraction with a given denominator. Input: The firs...

Redwolf Programs

^ Ignore it's a draft

Lyxal

You've never lived until you've had a coloured border on your phone

When you end the utc day just 30 rep from capping

Transcript for