The Nineteenth Byte

CMC: Given a string, output None, then every second character of the string. There should be no separator between the None and the output. For example, Hello -> Noneel

Aaron Miller

@emanresuA Technically, I've done a single Unary answer, which would be my longest, but other than that, it's this one.

DLosc

@Dudecoinheringaahing I suspect it's an ad for orthodontia. Compare the crooked teeth in the top photo with the straightened teeth in the bottom photo.

emanresu A

@Dudecoinheringaahing Vyxal, 5 bytes

Dude coinheringaahing

@emanresuA -1, doesn't have a capital N :P

emanresu A

Oops

that can be fixed easily at no cost

lyxal.pythonanywhere.com?flags=&code=y%E2%80%9B%C2%BB%E2%89…

exedraj

1:05 AM

@emanresuA but for code-golf, my longest would be 522 bytes (python)

Aaron Miller

@emanresuA Me: *golfs it down to 1 byte with a flag*

emanresu A

@AaronMiller Nope'

exedraj

@Dudecoinheringaahing hehe vyxal has both

CLI args and STDIN

Dude coinheringaahing

CMP: I'm currently planning to schedule Learn You A Lang For Great Good for the same times/days as BMG (Wednesday, 12:00UTC and 00:00UTC), just offset by a week, with the first being on the 18th of August. Are there any objections? and What times/days would be better?

7

emanresu A

Yes

DLosc

1:08 AM

@Dudecoinheringaahing Retina, 15 bytes

emanresu A

I can't make it to either BMG because school / sleep

Aaron Miller

@emanresuA ~~So drop out of school~~

@Dudecoinheringaahing Grok, 18 bytes: Try it Online!

DLosc

@AaronMiller ~~Nah, drop out of sleep~~

emanresu A

I'd prefer weekends 8pm-10am UTC / weekdays 4-10am UTC

DLosc

Welp... 00:00 to 03:00 UTC works best for me.

Or earlier on weekends.

@Dudecoinheringaahing Acc!!, 77 bytes

(Assuming the string doesn't contain newlines)

Or 74 bytes, assuming the string can contain newlines and is considered to always end with one.

emanresu A

1:19 AM

@Dudecoinheringaahing SMBF, 16 bytes, ignore all the ÿ at the end

DLosc

@Dudecoinheringaahing Vim, 18 bytes

I believe it would be 7 bytes in the Vim-inspired golflang I'm currently working on: N o n e till-err del-fwd right in verbose mode.

Can't verify that for sure because I haven't implemented till-err yet.

emanresu A

@DLosc Btw AviFS can probably help you with permalinking for the bitcycle interpreter.

Also can you add a flag that takes chunks of 8 bytes and turns them into characters?

DLosc

@emanresuA I'm brainstorming that right now, actually. I looked at how Redwolf did it for Risky and it looks pretty straightforward.

emanresu A

Cool language - it's like Convey but less strict.

DLosc

1:36 AM

Thanks!

@emanresuA Yeah, I should probably do something about character I/O. What do you think is most useful--chunks of 8 bits interpreted as Unicode, chunks of 8 bits interpreted as CP437, or chunks of 7 bits interpreted as printable ASCII?

(I assume unary interpreted as ASCII codepoints isn't such a great option.)

emanresu A

1:52 AM

@DLosc I think 8-bit

But have flags for 16-bit & 32-bit as well

Actually, maybe just do all

DLosc

Okay, but like, which one first? :P

emanresu A

8-bit probably

Also it'd be cool if you could use some gif library to have a gif creation option or something.

Right tool for the job?

DLosc

@emanresuA Ooh, fancy

@emanresuA Also: oooh, fancy!

emanresu A

I feel like there's a much golfier way to do it but whatever.

DLosc

Yeah, I'm sure there is. I like the aesthetic of yours, though. The delay circuitry on the right side is fun to watch.

emanresu A

2:04 AM

Yes :)

For gifs

exedraj

CMC: Output the largest even number (the factorial of 4 billion, to the power of a Googleplex to a Googplex squared, times graham's number, times aleph null)

emanresu A

+2

user

2:27 AM

@exedraj Uh

My new language with only bits: 0 because that's the largest even number it understands

emanresu A

@DLosc I made something with exponential output:

>>v
^~1<
 ^~!

Output doubles every few ticks

DLosc

Here's something similar:

 v
!~1<
 ^

emanresu A

That's nice

How are you meant to deal with multiple bits outputted in the same tick?

DLosc

It's undefined behavior. All of them are outputted, but the order is whatever the implementation says it is.

emanresu A

2:42 AM

Ok

DLosc

I don't remember for sure, but I think the Python and JavaScript versions output simultaneous bits in a different order.

(In case you hadn't seen, the Python version is available on TIO. You don't get the nice animations, though.)

emanresu A

Yeah, that's why I link to your one

I came up with a possibly more elegant solution to Scream Very Loudly:

     v  ~
~1 vv~0 ^
^  ~vv  ~
~1 vv~1 ^
^  ~vv  ~
~1 vv~1 ^
^  ~vv  ~
~1 vv~0 ^
^  ~v
    \
    \
    !

I synchronised eight bit generators for no good reason.

It looks like a lollipop.

Razetime

3:44 AM

bitcycle?

yup looks like it

PyGamer0

4:09 AM

@tjjfvi they are functions

also 🍪

also 51AC8 is gonna remove strings

@exedraj import sympy;print(sympy.oo)

exedraj

Me when the entire state is finally being yeeted into lock down in 2 hours and 40 minutes

Like if you're going to enforce stay-at-home orders, you might as well make it span across the whole state rather than just parts at a time

PyGamer0

do you mean entire Australia?

exedraj

No, just entire NSW

PyGamer0

NSW?

Northern southern west?

exedraj

New South Wales

It's a state

PyGamer0

4:23 AM

oh

exedraj

New South Wales

New South Wales (abbreviated as NSW) is a state on the east coast of Australia. It borders Queensland to the north, Victoria to the south, and South Australia to the west. Its coast borders the Coral and Tasman Seas to the east. The Australian Capital Territory is an enclave within the state. New South Wales' state capital is Sydney, which is also Australia's most populous city. In June 2020, the population of New South Wales was over 8.1 million, making it Australia's most populous state. Just under two-thirds of the state's population, 5.3 million, live in the Greater Sydney area. The demonym...

About a third of Australia lives in NSW

Including a code golf moderator :p

AviFS

6:07 AM

Lots more can be done on this of course, but here's a project I just revisited today that I thought I'd share.

It's a /// editor: avifs.github.io/slashes-repl

Oh hey Lyxal!

You can press shift+enter to run it

exedraj

h3llo there!

AviFS

By default it'll print the state once after each /find/replace/ command. The --verbose flag will instead make it print out after every single replacing step.

exedraj

@AviFS It hangs on the 99 bottles of beer program

AviFS

@exedraj Yeah...

exedraj

or at least, takes a while

AviFS

6:14 AM

Oh you mean it takes a while?

Freezing is def a problem

exedraj

@AviFS correct

AviFS

It'll freeze...

But I'm surprised that it's slow

That must just be an intensive program

I've never noticed lag with the things I try and run

But yeah, js should prob be restructured. I just don't think I'm doing that any time soon

For now, I don't recommend it for any programs that are at all long. Even Fibonacci. Even when it runs, the logging is pretty annoying and not helpful

But for smaller stuff, it's fun to use while you're writing

It feels more interactive, and you can trace what's happening

Eg, this program never made sense to me before this /a/\//ab/world!/ab world!/Hello, aworld! bworld!

And the unary to binary converter is super interesting and fun to look at in action. Highly recommend!

/*/>01//1>/1//10/01//011/1\0//01/_1//_///>0/>//>//******

But small inputs only!

exedraj

what's really fun is running an infinite program and watching the browser jump from using 800MB of ram to using 2GB of ram

AviFS

I knew I could count on you : p

Oh wait, actually I've taken care of the infinite looping in a different js interp I have

@exedraj

I really don't want to look at this any longer rn, but I can port that bit over later

exedraj

what's even more fun is watching Vivaldi going from using 1GB of ram (standard stuff) to 4GB of ram (w/ infinite program running)

that's half of what I have available being dedicated to running /// code

AviFS

6:22 AM

In the other js interpreter I wrote for slashes, /a/a/abra → ...abra

And /a/aa/ba → ...baaaaaaaaaaaaaaa

Whereas, say, /f/f/abra → abra

The prepended ... is part of the output, meaning that it didn't terminate

@exedraj I should've known you'd make a beeline to running infinite programs

@exedraj Still playing with it?

exedraj

Nah, I've force quit Vivaldi enough times using task manager for one day

AviFS

@exedraj I can share it again when it knows how to foil your non-terminating attacks!

exedraj

They weren't even attacks

I was just trying programs from the wiki lol

AviFS

6:46 AM

@exedraj That was shockingly easy! Now it's fixed.

And you can change MAX_ITERS = NaN if you like messes

MAX_ITERS = 128 by default. That's the max times it can do the same substitution, eg the a sub in /a/a/barb. It can still run arbitrarily many commands, though, as long as they're different

So you can still trick it if you're able to switch between running two different commands forever

Hey @emanresuA, when did you come in?

emanresu A

Hi

I've been lurking here for a while

AviFS

7:01 AM

That sounds like a good idea

emanresu A

Btw your permalink decoder barfs on slashes in the permalink because you're passing a string with slashes to atob - How can I fix this?

PyGamer0

7:43 AM

@exedraj JoKing?

emanresu A

Anyone want to try this?

exedraj

7:54 AM

@PyGamer0 yes

@emanresuA got it

just gotta post it

Neil

8:35 AM

@DLosc what's wrong with shorn?

emanresu A

8:48 AM

@exedraj HOOOOWWWWW????

PyGamer0

9:12 AM

@emanresuA fight part 2?

emanresu A

Maybe

exedraj

@emanresuA I remember reading the specs for cascade when JoKing first released it

emanresu A

Oh

exedraj

And the program form felt similar

emanresu A

I thought I was being clever using an obscure language

explanation coming soon

exedraj

9:28 AM

@emanresuA BTW I tried bitcycle, various funges, a few other languages and Keg before trying cascade

But I kinda suspected cascade as first

emanresu A

Oh lol

Explained

Take 2

exedraj

9:49 AM

@emanresuA caird got in just as I was doing my own write up

It's obviously K

emanresu A

:)

That was a bit too obvious

exedraj

The fact that it used "d" suggested that you were using a language that treats characters as their ascii codes to generate a range

emanresu A

Oh

exedraj

And the ! I know is K's range

emanresu A

Stop knowing stuff, it's annoying!

exedraj

9:53 AM

Meaning that the function in the {} was being used to increment the range

Anyhow, I gotta go now

emanresu A

o/

Sus

Dude coinheringaahing

10:08 AM

@emanresuA You dare use my own langs against me? :P

emanresu A

Oops

Dude coinheringaahing

I'm on my phone rn, I'll post an answer (and explain my K reasoning) when I get back to a computer :P

emanresu A

I still think that that language is cursed.

Unrelated String

i may have spent the last hour or two doing the kotlin koans for no real reason instead of writing an important email

this language really does just feel like considerably better java

emanresu A

10:46 AM

@Dudecoinheringaahing @exedraj Take 4, while I goto sleep.

emanresu A

11:06 AM

'night

exedraj

11:33 AM

@emanresuA you uh

Really thought using my first esolang was really going to work?

Especially after using caird's own language?

Well, I was expecting you to use one of my 3 esolangs on tio at some point

PyGamer0

1:51 PM

in The 51AC8 Room, 17 secs ago, by PyGamer0

Gonna remove string type

^ good idea or not?

PyGamer0

2:02 PM

CMegaC: Given the name of a creature, print out its DNA sequence.

Redwolf Programs

2:29 PM

@Dudecoinheringaahing Could we maybe offset it by 6h, so some people who might not be able to make either BMG could at least make LYLGG?

PyGamer0

LYLGG?

oh got it

Redwolf Programs

Learn You a Lang for Great Good

Jo King

nice to see cascade is getting some love. Maybe I should suggest it for LAL?

Dude coinheringaahing

3:00 PM

@RedwolfPrograms That sounds like a good idea. So 6UTC and 18UTC?

Redwolf Programs

Yep

pxeger

@Dudecoinheringaahing neither 6/18 UTC work for me :(

Redwolf Programs

I'm kind of thinking we should switch both back to 8 hour offsets again

I'd rather the times be a bit complicated, over people not being able to attend

user

3:19 PM

@PyGamer0 Must we handle mythical creatures too?

PyGamer0

3:53 PM

@user no irl creatures

DLosc

@Neil Nothing, but that's the past participle of "shear," not "shave." ;)

@JoKing Dew it

Anush

CMC given a string of length 10 consisting of ASCII printable characters. How many strings are there within levenshtein distance 2?

Redwolf Programs

Does that include ones with a distance of 0 or 1?

Anush

@RedwolfPrograms yes

Within 0 is easy :)

Redwolf Programs

I count 2048 with a distance of 0 or 1, the ones with a distance of 2 might take slightly longer

6571064 is what I got for a distance of 2, but that's probably wrong

So 6573112 is my guess for the total

Anush

4:07 PM

The number depends on the string!

Redwolf Programs

Wait what?

Anush

Try a string of length 2 to see

Redwolf Programs

How?

Anush

Consider distance 1. Now look at aa and ab

Redwolf Programs

There are the same number of possiblities for both, right?

Anush

4:09 PM

Assume the alphabet only has a and b in it

Redwolf Programs

Yep. You can replace as with bs, or bs with as, or insert an a or b at any position, or remove one character

Anush

From aa the only string of length 1 you can make is a

But from ab you can make a and b

Redwolf Programs

Oh, huh. Yeah that's true.

Anush

Similarly from aaaaaa if you insert an a it doesn't matter where you insert it

But for abcdefg it does matter where you insert an a

I am not sure which string will give you the largest answer

I believe the string with all letters the same gives you the smallest one

@RedwolfPrograms do you have fast code the compute the levenshtein distance?

Redwolf Programs

No, but I know it's possible to do it pretty quickly with some sort of thing

Anush

4:15 PM

@RedwolfPrograms there are libraries for many languages. Which language do you use?

Redwolf Programs

I use JS, but I'm not really interested in doing this CMC :p

Anush

CMC For strings of length 5 over the alphabet abcde, find the string with the largest levenshtein ball. That is the string with the largest numbers of strings within levenshtein distance 2

2

@RedwolfPrograms I made a simpler version :)

github.com/gustf/js-levenshtein

DLosc

TIL that you can put a <wbr /> tag inside <span> to specify wrap points for long strings without using a zero-width space.

Sandbox Posts

4:38 PM

0

A: Sandbox for Proposed Challenges

All valid N * N Flow Free Boards. Since there are several other Flow Free question, either here or on main, but none, as far as I can tell, that do this, I will ask the question some of us have pondered at night: How many valid Flow Free Boards are there? What is a valid board? From what I can te...

DLosc

5:54 PM

Yay, BitCycle permalinks are working!

user

Nice, it's got a visualization too

Dude coinheringaahing

6:47 PM

@RedwolfPrograms The big problem I have with 8 hour intervals is that it makes it very difficult to schedule, which is what leads to a decrease in activity over time

Redwolf Programs

We could have three recurring events, maybe

It means we'd have six events in the room's schedule, but I think a schedule that prevents multiple people from ever being able to participate is really a bad idea

DLosc

For Learn You A Lang, what happens if the event is scheduled at a time that doesn't work for the person who knows the lang and was going to teach it? Seems to me there needs to be some amount of flexibility in the schedule.

pxeger

yeah, maybe the teacher should organise it individually, taking a poll of times?

Redwolf Programs

Oh, we probably wouldn't have recurring events for LYLFGG anyway, so that could work

user

7:57 PM

tmw you have 5 followers on GitHub and one is a bot and another is a sockpuppet

pxeger

lmao

I have 4 followers: ngn, razetime, lyxal, and the cookie sock

emanresu A

@DLosc Nice