The Nineteenth Byte

emanresu A

08:00

Yeah, I think it's a problem with Vyxal

@PyGamer0 That doesn't work either, errors...

Bubbler

Like a basic server with custom port can be run with python -m http.server 3000

Then that's Vyxal bug, yes

PyGamer0

@emanresuA @LLLYXAAAAAALLL lôl

emanresu A

Btw, look at what Feeds is doing:

chat.stackexchange.com/rooms/130499/all-of-the-lols

In the morning, this is going ot look like chaso

Bubbler

So the feed runs roughly at 50min intervals

PyGamer0

wairt

redwolf made a recursion lol

emanresu A

08:04

Redwolf likes recursion

And the best part is, only mods can fix it!

PyGamer0

lol

wait the lol is going to the room

and that lol

and this lol

lol

^ that looks like a programming language

emanresu A

lol

(I had to do that)

PyGamer0

wait the ____ is going to the room prints

lol begins and ends the block

Anush

@Bubbler kel.bz/post/lll

emanresu A

lol lol {
   lol(trolololol lol lolol);
   lol lolllll;
}
lol(lololol,lol);

Bubbler

08:11

@Anush That looks like a very involved algorithm, mainly because it depends on gram_schmidt

(and people seem to not like very involved algorithms in code golf in general)

lyxal

@emanresuA did you download v2.4.1 or v2.5.x

Because 2.5.x is broken as frick

Heh, why else do you think we're doing a rewrite?

Anush

@Bubbler except when they do! We have had some very popular very involved code-golf questions

emanresu A

@lyxal O

Anush

Maybe gram schmidt could be a challenge

Bubbler

@Anush Uh no, I haven't seen any, at least recently

Anush

08:15

I am thinking of older ones

Have we dumbed down? :)

Bubbler

Also the amount of text needed to explain concepts is inversely proportional to popularity

emanresu A

Ykw, nvm, iautma, I was trying to figure out why some stuff errors

Ok, I think I've actually figured it out by running similar code

Anush

codegolf.stackexchange.com/questions/28821/… wasn't easy

Bubbler

That is not an algorithm problem

Anush

146

Q: "KNOT" or "NOT"?

Write a program that processes an ASCII art representation of a tangled string and decides whether or not it can be untangled into a simple loop. The tangle is represented using the characters - and | to represent horizontal and vertical segments, and + to represent corners. Places where the stri...

I guess that requires an algorithm

and is hard

Bubbler

08:20

Its introductory section is (kinda deceptively) easy, and knot theory was somehow a hot topic at some point in the past

Anush

Yes I can see there are fashions here

Bubbler

Any kind of new stuff don't make a hot topic like that these days

Anush

:(

Bubbler

though there are some people who still try to attack crazy problems

emanresu A

53

Q: Do studies show that viruses are contagious?

An acquaintance of mine has been very adamant that viruses can't be caught and continues to link me things like this Ickonic video, where Jaymie Icke interviews Dr. Andrew Kaufman M.D. who claims: I lived my whole life believing we can pass these infections from person to person [...] but intere...

medical-science biology covid-19 disease virus

...

Bubbler

08:23

and this, a recent algorithmic challenge of mine, was only moderately successful, despite the concise presentation and good answers

Anush

CMC iterate over integer pairs x, y in order of smalllest value of x+y to largest. Stop when x+y equals 20

Bubbler

iterate how? return a list containing all pairs in order?

Anush

@Bubbler it's a great question. I upvoted it before

@Bubbler yes or just print out one at a time

Bubbler

integer is nonnegative?

Niko

do you mean (1,1) (1,2) (2,1) and continues?

Bubbler

08:25

[(x,s-x)for s in range(21)for x in range(s)]

Anush

No. Negative is allowed but I made a mistake. abs(x)+abs(y) equals 20 is the stopping condition

Bubbler

...

Anush

@Niko see bug fix

Bubbler

Any order of pairs with same sum is fine?

Anush

Yes

emanresu A

08:26

13?

Niko

so start from (-20,0) or (-19,0)?

Anush

@Niko starting with (0,0)

Bubbler

in order of smallest value of abs(x)+abs(y) to largest, right?

Anush

Let me rewrite the challenge to make it clearer

Bubbler

including or excluding 20?

Anush

08:29

CMC iterate over integer pairs x, y in order of smalllest value of abs(x)+abs(y) to largest. Stop when abs(x)+abs(y) equals 20

@Bubbler including

Bubbler

sorted([(x,y)for x in range(-20,21)for y in range(-20,21)if abs(x)+abs(y)<21],key=lambda x:sum(map(abs,x))

Adám

@Anush What is the result?

Niko

i think don't add condition

Anush

@Bubbler nice. What if you want to output one at a time?

Niko

use index is much shorter

Bubbler

08:30

@Anush

[print(x)for x in sorted([(x,y)for x in range(-20,21)for y in range(-20,21)if abs(x)+abs(y)<21],key=lambda x:sum(map(abs,x))]

Remember, on our site you can't insist on behavior :P

Anush

@Adám (0,0) (-1,0), (1,0) (1,1) (2,0) (-2,0) etc

@Bubbler :)

Bubbler

@Anush You missed (0,1), (0,-1)

Anush

@Bubbler thanks

I am typing on a cell phone!

Niko

@Bubbler replace if abs(x)+abs(y) <21 part with index slice?

as it's always same

Anush

I wonder what this would be in C

Any C coders in?

Bubbler

08:34

for y in range(-20,21)if abs(x)+abs(y)<21 -> for y in range(abs(x)-20,21-abs(x)) would work I guess

Niko

*(x,y),(-x,y)(-x,-y),(x,-y) would save all the abs

not sure it will be shorter tho

Bubbler

naive C:

for(int s=0;s<21;s++)for(int x=-s;x<=s;x++){printf("%d %d\n",x,x>0?s-x:s+x);if(s*s-x*x)printf("%d %d\n",x,x>0?x-s:-x-s);}

Kinda golfed, 111 bytes

Anush

@Bubbler this is very good!

The warnings are fun too

No APL answer @Adám?

Adám

08:52

I'm working on a smoothie.

Anush

:)

I am assuming that is a drink not a coding term

Adám

A drink indeed:

Kamila Szewczyk

it appears that my mersenne twister cracker might have leaked

or, well, the better version of it

i wonder when i'll start seeing new seed submissions on codegolf

pxeger

@Adám does that have egg in it??

Adám

09:07

No,the deep yellow blob is a peeled persimmon/sharon fruit.

pxeger

right

how was it?

or have you not drunk it yet

Adám

Being drunk as we speak :-) Delicious.

Also has apple, banana, and orange, with a base of oats and oat milk.

Unrelated String

09:28

nice

Anush

10:04

@KamilaSzewczyk what does it do?

Kamila Szewczyk

10:34

it generates much better seeds wrt/ quality/size

New Posts

11:00

0

Q: (t)h(e)(i)(r)(m)

Sometimes authors will write (s)he as a stand in for singular they. This is ok for the nominative but doesn't work so well when you want to write "her or him". You can write h(er)(im) which covers both cases but gives two extra "pronouns" h her him herim In formalizing these patterns we will s...

code-golf string

emanresu A

11:17

~nigth

lyxal

12:02

so here's me, and I'm making a custom vs code theme right. I've spent a good 20 minutes making everything either black (00000) or my favourite shade of green (beedab). btw I'm using a theme generator online because I don't know how to make one with just text because yes. Anyhow I go to click the save theme button and it wants me to log in via github. That's fine - I'm chill with linking my github account to stuff. But then when it's logged me in, my theme is gone.

Very sad.

Aaroneous Miller

12:18

F

Huỳnh Trần Khanh

12:30

😭

thejonymyster

very tragic

reminds me though, i had a (bad) code challenge idea

without changing any settings, write the shortest code that uses all the enabled syntax highlighting colors of your ide

its only bad at being a fair challenge, i still think its a fun and interesting thing to do haha

lyxal

welp I think it's time for my sleeping to happen. if I had a funny joke to sign off with for the night, I'd insert it here, but I don't have one. Feel free to insert your own funny joke here

o/

Aaroneous Miller

/o

@thejonymyster does the code have to do anything?

thejonymyster

@AaroneousMiller yes; it has to use all the enabled syntax highlighting colors of your ide

no uh probably not

but brownie points if its valid code (up until any error specific highlighting ofc)

Aaroneous Miller

does it have to be valid code in the language?

lol ninja

thejonymyster

12:42

yea its not a real challenge so do whichever version is more epic to you

if you want to actually go into settings to add more syntax colors youre also free to do that

the "without changing your settings" thing is akin to like

"without downloading more pictures to your phone, use images you have saved to describe yourself" or whatever

Aaroneous Miller

makes sense

thejonymyster

and also just like to keep ppl from turning the colors off haha

Aaroneous Miller

Vyxal Syntax Highlighting

Valid code, but only prints a space, so it's boring: Try it Online!

thejonymyster

1. i didnt know tio had syntax highlighting
2. wow! nice job

you code golfers do not play around :triumph: :triumph: :triumph:

Aaroneous Miller

13:02

@thejonymyster thx! tio doesn't actually have syntax highlighting, this is a separate site made specifically for Vyxal. Also, I forgot that this is valid: Try it Online!

It shouldn't be valid, but Vyxal parsing is jank

thejonymyster

whats the space for?

oh i guess its ambiguous whether the challenge requires it

Aaroneous Miller

without the space, the backslash would make the lambda a string, which is highlighted differently. You could replace the space with anything though and it would still work: Try it Online!

thejonymyster

ah, didnt catch that fsr

i wish i could see all of replits syntax highlighting cause theres so many subtle differences in colors

like the dot in a regex is a slightly different blue than a plus

and apparently, numbers are a very pale green rather than white

Aaroneous Miller

lol unicode

thejonymyster

lmao it costs so many bytes though

i like how they let it extend up to the previous line

Aaroneous Miller

13:11

lol

PyGamer0

13:28

@lyxal i made 3 vscode themes and now all of them have over 100 downloads

@lyxal uses gtp3

thejonymyster

gtp3 stands for Got To Publish 3vscodethemes

4

PyGamer0

this is a good joke to you and your family calls for the exams for the channel's and the end and the other's of butter and jelly you are not the name of serial no and the other's is the best and that we are winning the world of our life and the end.

thejonymyster

TRUE

PyGamer0

@thejonymyster Are you sure about that.

thejonymyster

its an educated guess

PyGamer0

13:32

@thejonymyster do you know whatit is??

thejonymyster

admittedly, despite hearing the name thrown around quite a lot, i dont

i probably should google it at some point

it sounds like some standard

Milk

i am milk lol

thejonymyster

dude holy guacamole you are milk

i googled gtp3 and gpt3 showed up

Milk

@thejonymyster it is a fancy ai for generating text

or cnn or lstm or whatever

@thejonymyster i am a sock ;)

thejonymyster

google results for it is full of typos theyre all saying gpt3 instead :\

Redwolf Programs

13:35

Yoo wassup it's ya boy redwolf back with another CGCC video. Make sure to like and subscribe if you want more content like this.

4

thejonymyster

@Milk you never cease to amaze

Milk

@RedwolfPrograms NO.

Aaroneous Miller

> The General Purpose Technology-3 (GPT-3) is a missile interceptor designed to protect the continental United States (CONUS) against ballistic missile attacks.

6

Redwolf Programs

Oh no...All of the lols quotes its own messages

thejonymyster

isnt it great

Redwolf Programs

13:36

It's going to create exponential growth

I love it

thejonymyster

everything grows exponentially if you count logarithmically

no uh, is it? i havent checked in on it in a bit, it looked kinda slow

Redwolf Programs

It only posts every half hour or hour or something

Milk

in Vyxal, 1 min ago, by PyGamer0

i am a sock dont tell redwolf

^ @PyGamer0 explain

Redwolf Programs

Oh wait, it wouldn't be exponential since it only quotes its last quoting, but it's polynomial

thejonymyster

right yea thats what i was getting at

srry, wrong "slow"

PyGamer0

13:38

@Milk uhhh

uh oh math arrived rigt after i change my name back to PyGamer0

Redwolf Programs

What are the timestamps on this message lol:

in All of the lols, 19 mins ago, by Feeds

24 mins ago, by Feeds

5 hours ago, by Feeds

24 mins ago, by Feeds

2 hours ago, by Feeds

49 mins ago, by Feeds

in Maid Café (メイド喫茶), 18 mins ago, by hyper-neutrino

ah. lol

PyGamer0

@RedwolfPrograms yes its your favourite thing

recursion

Redwolf Programs

24m ago, 5 hours ago, 24m ago, 2 hours ago, 49 minutes ago

Guys, I found time travel

thejonymyster

@RedwolfPrograms and last but not least, the maid cafe

the place where time is not

oh nvm 18 mintues ago

Redwolf Programs

Oh wait the time stamps are relative to when it was posted

thejonymyster

13:40

i skimmed too hard

Aaroneous Miller

in Vyxal, Aug 18 at 15:12, by PyGamer0

also i am JoKing's sock

PyGamer0

uuuhhh idk löl

Redwolf Programs

I wonder if you can get an RSS feed for a whole room

Then have two rooms with feeds reading from each other

thejonymyster

ideally you get it to freeze due to inactivity, then immediately unfreeze it

so that the message theyre repeating is that the chat is frozen and unfrozen or whatever it says idr

Aaroneous Miller

@RedwolfPrograms That sounds like the chat equivalent of having two phones calling each other and put right next to each other

Redwolf Programs

13:44

I've always wanted to do that

thejonymyster

ive done it, it is as fun as it sounds

Redwolf Programs

I can't believe I've been missing out on this

Aaroneous Miller

it's a lot of fun if ur the kind of person who likes doing stupid stuff that most people would find annoying

like me (i find it fun, not annoying (i realize that was ambiguous))

thejonymyster

exactly

its like hey can i borrow your phone

not anymore you cant

Redwolf Programs

lol

Milk

13:47

paralousi???

wat ?

idk i am typing random things

thejonymyster

dont do that :D

Milk

pxeger is making me type random things

hellp

Redwolf Programs

I can inject arbitrary advertising into All of the lols by including "lol" in soms spam, which is why you should use Honey, the free borwser extension that lets you get insignificant discounts on various things.

Milk

i_am_bored.exe

oh shoot its a virus

Aaroneous Miller

@Milk paraloop??

> free bowser extension

Milk

13:50

@AaroneousMiller i am not going to trqash takekw

Aaroneous Miller

FTFY

Milk

my dspeeskidn when sleepaj is jewidred

i harwnte te sdis

help

Aaroneous Miller

Maybe if u sleep ur spelling will be better

in Vyxal, Sep 25 at 13:41, by lyxal

my spelloing when leepe is endeded

PyGamer0

@AaroneousMiller i think he went

Aaroneous Miller

to slep?

PyGamer0

13:53

prob

Redwolf Programs

Just casually waiting for Aotl to update lol

I wonder what requesting access to a room with no owners does

Aaroneous Miller

Acousto-Optical Tuned Laser?

Redwolf Programs

All of the lols :p

Aaroneous Miller

you're right, that was a pretty good joke ;p

4

hyper-neutrino

14:25

@Milk you aren't really pxeger's sock are you? (rhetorical question.) you shouldn't say you're pxeger's sock in your profile then; that's called impersonation. i've gone ahead and just cleared it

thejonymyster

14:35

how to get away with secretly having a sock ^

reverse psychology

Huỳnh Trần Khanh

hello

Sandbox Posts

14:59

0

A: Sandbox for Proposed Challenges

Every Pong is Abelian Part of the lean Language of the Month A pong* is a group where every element is it's own inverse. A pong is a set \$P\$ with an operation \$+\$ and an element \$i\in P\$, that satisfies the following properties: \$\forall a \in P : i + a = a\\ \forall a \in P : a + i = a\\ ...

Redwolf Programs

It fills my whole screen :D

hyper-neutrino

that is such a waste of space

Redwolf Programs

Yeah true

(Although that was kinda the point lol)

caird coinheringaahing

That room seems like the easiest way to track whether Avi is active in chat or not :P

thejonymyster

does anyone know what those ^[[A^[[C^[[B^[[D things that show up in prompts are for

like command line things

and repl(s)

Aaroneous Miller

15:05

arrow keys

Redwolf Programs

It's the escape codes those keys are mapped to

thejonymyster

oh, good

Redwolf Programs

E.g., 0x27 (^[) followed by [A is "up one line" IIRC

Aaroneous Miller

also some other keys like insert, home, pgup, etc.

thejonymyster

thats helpful :D

im using it to make a dumb text based thing haha

good snowman hard build clone on replit

i guess i was just wondering if that was their intended purpose or just a coincidence, but now i know :)

Redwolf Programs

15:13

@RedwolfPrograms 0x1e, not 0x27. 27 is the decimal one

user

@cairdcoinheringaahing —-just looks at the starburst—- ;o

caird coinheringaahing

--- for your copy-paste needs :P

Redwolf Programs

@RedwolfPrograms Wait that's also wrong

it's 0x1b...I think?

Yeah

caird coinheringaahing

Can someone ping me?

Redwolf Programs

@cairdcoinheringaahing No :p

caird coinheringaahing

15:14

Huh. Has the ping sound changed for anyone else?

It's more like a sad trumpet now

Redwolf Programs

I wouldn't notice since I have the lyxal's fridge script

thejonymyster

im at work so its all muted

hyper-neutrino

i haven't noticed it change

Redwolf Programs

I'll check if the source changed

It's still https://cdn-chat.sstatic.net/chat/se.mp3, does that have a different sound now?

I'm in school so I can't check

caird coinheringaahing

Huh, for some reason it's only different through my headphones

Redwolf Programs

15:16

@RedwolfPrograms Just checked it's the same

hyper-neutrino

does other audio work fine on your headphones

caird coinheringaahing

Through my computer speakers, it's still lyxal's fridge

hyper-neutrino

sounds like an output device issue :p

caird coinheringaahing

@hyper-neutrino Yep, everything else is normal

Guess my headphones just don't like lyxal

Even weirder, MSE's ping noise is the same through my headphones O.o

Aaroneous Miller

@user mobile?

Redwolf Programs

15:19

Maybe it tries to fix/improve it in some way, since it's basically just a pure triangle/sawtooth wave I think

Aaroneous Miller

no, it's a fridge

thejonymyster

you dont keep sawteeth in your fridge?

Redwolf Programs

I keep lots of triangles in mine

And I wave at it a lot

Aaroneous Miller

well, I guess I don't have a lot of experience refridgeratoring, since i am a plate

thejonymyster

do you see the microwave often

pxeger

15:23

anyone know what on earth has caused this??

it's everywhere in firefox, and only in firefox

just realised I won't be able to read your answers anyway lol

Redwolf Programs

Ooh Aotl updated

pxeger

Aotl?

Redwolf Programs

All of the lols

@pxeger Are you zoomed out? Maybe a bug with text rendering at weird fractional zooms

thejonymyster

@pxeger ive seen that before, but on like shampoo labels

pxeger

All of the lols?

Redwolf Programs

15:25

chat.stackexchange.com/rooms/130499/all-of-the-lols

It uses an RSS feed to track all of the messages in chat that contain "lol", and accidentally also creates infinite loops

As seen here: chat.stackexchange.com/transcript/message/59362244#59362244

thejonymyster

similarly though, firefox has had trouble rendering most text on fancily formatted scpwiki pages, i dont think its the same thing since it doesnt have random letters working though

(for me at least)

@pxeger can you select things and be able to see them n stuff

or is it just Gone

pxeger

@thejonymyster no, I'm having to copy and paste into vim

@RedwolfPrograms The bug seems not to happen at certain zoom levels, but those seem to be pretty arbitrarily different in different tabs

Aaroneous Miller

Vim?

thejonymyster

cant tell if its like confirmation bias but it looks like only specific characters
edit: nvm its inconsistent

pxeger

~~and I've just noticed it doesn't happen with some fonts~~ nope, it's just different tabs

thejonymyster

15:29

oh whats the strikethru

pxeger

I'm pretty sure restarting firefox will fix this, but I'm keeping it open because I want to play around with it lol

thejonymyster

nice

pxeger

@thejonymyster ---text--- -> ~~text~~

thejonymyster

~~text~~

thank u

pxeger

@pxeger yup, that fixed it (I restarted cos it was too annoying)

weird lol

thejonymyster

16:07

what does the c in C / C++ stand for

wait i forgot about google nvm sorry

pxeger

C was just the language after B

and B was a simpler (smaller, hence the truncated name) version of BCPL

thejonymyster

wait seriously

pxeger

BCPL stood for Basic Combined Programming Language

thejonymyster

thats great ty :D

pxeger

originally Basic Cambridge Programming Language

but then more universities than just Cambridge got involved

Wezl

16:15

@user nice! (but there are still other ways of extending if that besides redefining booleans. Naturally, none of them are necessary and it's not very important to be able to redefine if, but I like it that way :)

hyper-neutrino

16:29

@RedwolfPrograms well i know how i'm starting my video if i ever do another jelly code analysis video

Redwolf Programs

> Spanish mathematician Valmes was burned at the stake for claiming to have solved the quartic equation.[4] Inquisitor General Tomás de Torquemada allegedly told Valmes that it was the will of God that such a solution be inaccessible to human understanding.

pxeger

well, arguably, it is the will of God (or the universe) that a solution to the quintic be inaccessible to human understanding

in the sense that the quintic provably has no formula for exact solutions

Redwolf Programs

I wish desmos could handle imaginary numbers

thejonymyster

agree

math

16:49

@RedwolfPrograms it can't?

wow

Redwolf Programs

Try something like y=(x-i)(x+i), or y=(x-\sqrt{-1})(x+\sqrt{-1})

That should be the same as x^2+1, but the first considers i to be undefined, and the second just doesn't graph anything

Sandbox Posts

17:27

0

A: Sandbox for Proposed Challenges

Pattern in Prime Given a positive integer less than 100 with no preceding zeros we have to find all 12 digit primes that contains the maximum number of time the given pattern. Note: Pattern's occurance can overlap. For example 11 occur 6 times in 1111111 Example: pattern = 1 , count = 13 the maxi...

user

18:24

lol, all of the lols is just weird

thejonymyster

i wonder why it was made

Redwolf Programs

Why what was made?

thejonymyster

aotl

Redwolf Programs

I made it to test chat search feeds

thejonymyster

18:40

~~did it work~~

Redwolf Programs

CMC: Given three points, find the quadratic which passes through them

pxeger

assuming they aren't colinear?

Redwolf Programs

You can assume they aren't, any elegant solution would work with a line though imo :p

(aside from a vertical one for obvious reasons)

I've got 120 in JS: (a,b,c,d,f,g)=>[(d-g)/(a*a-c*c)-(s=(a-c)/(h=a*a-c*c))*(t=(f-g-(u=(d-g)/h)*(i=b*b-c*c))/(b-c-s*i)),t,g-u*c*c-t*(c-s*c*c)]

pxeger

@RedwolfPrograms well if you do it in polar form...

Redwolf Programs

Probably can be golfed

thejonymyster

18:50

the word quadratic bothers me

i know the quad is from "square" but it sounds so much like it should be 4 related

Redwolf Programs

Yeah, I'm sure there's a reason, but it's weird

thejonymyster

i mean that is the reason

Redwolf Programs

Quartics can also be called biquadratics, which is even weirder feeling

thejonymyster

oh my god

hyper-neutrino

i never even put any thought into "quad" being in degree 2 polynomials, i just kinda accepted that quadratic was the word and didn't think about it lol

thejonymyster

18:52

i like how the french and english just sort of show up to give modern latin backup

Redwolf Programs

@RedwolfPrograms I spent way too long figuring this out on a whiteboard :p

I got to use the matrix thingy though

pxeger

going by quintet / quintic quartet / quartic, degree 2 should be duet / duic

degree 3 doesn't really work though... trio / triic?

Redwolf Programs

Ooh, golfed four bytes: (a,b,c,d,f,g)=>[(d-g)/(a*a-(k=c*c))-(s=(a-c)/(h=a*a-k))*(t=(f-g-(u=(d-g)/h)*(i=b*b-k))/(b-c-s*i)),t,g-u*k-t*(c-s*k)]

Turned all the c*cs into a variable

I could probably simplify some stuff if I expanded out s/t/u but those will be really big formulas

pxeger

could be an interesting metagolf to take an arbitrary equation and find the shortest representation in a C-like language

for an equation consisting of a sum of products/quotients of variables and integer constants (no parens; everything must be expanded)

Redwolf Programs

Could be, yeah

Transcript for