The Nineteenth Byte

Seggan

12:05 AM

@emanresuA what does that do?

ah are you resetting the RNG?

emanresu A

Modifying it

Seggan

ah

thejonymyster

why not just Math.random=_=>1

emanresu A

Because if you return the same result, certain processes can get stuck in infinite loops

Or somethng similar

thejonymyster

12:23 AM

ah lol

Bubbler

@NewPosts Can't answer this until Extended Riemann Hypothesis and one of Hardy-Littlewood conjectures are proven or disproven

and I doubt this condition will be met in 100 years

thejonymyster

nice

should we vtc or just wait it out?

Bubbler

Idk, "we can't evaluate the best known algorithms" is not a reason to VTC because we can still post suboptimal answers with known complexity

"can't answer this" is a bit of overstatement actually

OldSandboxPosts

1:00 AM

Sandbox posts last active a week ago: Every \$ n \$th repeat [code-golf] [array], Use "e" or a suffix?

user

@emanresuA Wait why?

Bubbler

meanwhile stasoid is on the rush again

4

emanresu A

@user ¯\_(ツ)_/¯ honestly

But it breaks when 0

user

1:25 AM

Starting to suspect stasoid’s some supercharged version of copilot

PyGamer0

2:03 AM

@user or maybe copilot was made by stasoid :P

pxeger

7:04 AM

500 consecutive visits

SE gamification disease has got to me

emanresu A

7:29 AM

I can hear Lyxal now: nerd, imagine not having 819

*1080 afaict

(Does it still show that anywhere?)

Unrelated String

i can see my streak on my own profile but i can't see one on lyxal's
so it's probably just a private thing now

lyxal

@emanresuA now see that's where you're wrong

I had a nice streak going and for some reason during covid, SE decided not to register a day

So now it's back down to <100

Heck, it's only 25

Idk why it dropped a day when I visited every day, but it's what it's

Unrelated String

f

Bubbler

probably timezones

lyxal

Probably

But I'm fine with it now. It was fun while it lasted and the bragging rights were cool, but it was going to come to an end some day

emanresu A

8:37 AM

Gotta love a 91 hour documentary

Neil

8:52 AM

yeah it's in UTC so it works well for Europeans because the changeover happens when they're asleep but if you're in Australia then you can actually game it the other way around - visit both in morning and evening on alternate days

I'm only back up to 309 consecutive

emanresu A

I'm at 12 consecutive

lyxal

@Neil or you can just visit at 10:59:59 am and then refresh the page and visit at 11:00:00am

Nobody Needs Names

9:34 AM

lol

Just Some Advertisement

@emanresuA lol, last time i watched that went 10X speed and consequently understood 10% of content

emanresu A

Context: The teacher forgot to press shift, it's meant to be a (

lyxal

10:26 AM

@NobodyNeedsNames wow. Those are quite good!

And just as I'm about to learn about graph theory at uni this week

Definitely gonna give the graph theory ones a read before class :p

Nobody Needs Names

@lyxal but i'm like g7 so don't expect much

@emanresuA lol

lyxal

@NobodyNeedsNames introductory level should be good for pre-reading before the lecture this week

Fatalize

11:20 AM

@NobodyNeedsNames So you’re 12?

emanresu A

They're 13 IIRC

The grade system probably works differently in China

Fatalize

11:48 AM

I feel like I’m stupid because I don’t understand this challenge

What prevents me from posting a 0 byte answer that maps the chars of hello world to themselves?

emanresu A

unique chars

Fatalize

right

Nobody Needs Names

12:18 PM

@Fatalize yes, 13

@emanresuA some are 12, some are 13, some are 14 in grade 7 china

@lyxal I'll add some more some time

@Fatalize actually, i'm turning grade 8 next month

Nobody Needs Names

12:49 PM

@lyxal probably tommorow... I'm taking an Algorithm class which is talking about this, so it's going to depend on if there is homework for that class... the class is a summer camp... PACT (or at least a version of PACT in china)

lyxal

bruh I'm doing an algorithm class this semester too!

Nobody Needs Names

algorithmicthinking.org

@lyxal lol

(you won't find me in the students pictures b/c its a china version called "PACT china" but it's taught by ProfGhandi and blablablabla)

@lyxal I've got to go to sleep now and leave my "draft" of the next post there

lol, a "draft"

Fatalize

1:12 PM

Really Vyxal?

lyxal

yes

yes really.

Fatalize

I’m not even gonna ask why

lyxal

good

it's for the best you don't

Fatalize

Just noticed Vyxal and Brachylog have the exact same number of stars

Also noticed that we passed 2 years with no Brachylog update (last commit 28 July 2020)

(though to be fair, the last real chain of commits were in summer 2019, so it’s more 3 years than 2)

thejonymyster

1:40 PM

challenge idea: take two lists of numbers, and decide if one can be transformed into the other one with structure preserving transformations

not ragged lists or anything, structure as in some property of the relationships of all the numbers in the list

Adám

@thejonymyster APL, 1 byte: 1

thejonymyster

s'pose i need a stricter definition of structure :P

im fumbling it in my head but something to do with ratios of spaces between numbers?

ill sketch out more ideas and come back when ive got something more solid :0c

ok yeah no i think i was right, "ratios of differences between numbers in the list" seems to stay constant if you only multiply all numbers by a positive constant or add a nonnegative constant to all numbers

i cant prove it but it seems true geometrically / after messing around with it :P

PyGamer0

2:51 PM

i have an idea

so y'all know mathjax right?

i have an idea for "mathgraph""

it shows graphs of functions using svgs

example: ##sin x#cos x##

displays the sin(x) and the cos(x) graphs in a single graph

the ## is the delimiter

the # is start of new expression

and ##\slider{a}{0}{10}{0.01}#ax## creates a slider

so this is interactive as well

oh and i can change graph parameter like colour and so on

Sandbox Posts

0

A: Sandbox for Proposed Challenges

Solve a jigsaw puzzle code-golf A jigsaw puzzle consists of (usually rectangular-ish) pieces. On each side of a piece, there is either an edge or a connector1. A connector is either a tab sticking out (outies) or a slot facing inwards (innie). Two pieces can be joined if the outie tab can fit int...

mathcat

Mar 20 at 16:04, by mathcat

tbh, I once had a dog for 2 years and I don't know what happened afterward.

Remember that dog (and my bad spelling)?

I just found out he died :(

@PyGamer0 so geogebra but svg?

PyGamer0

yeah something like that

New Posts

3:17 PM

0

Q: Encode the systematic binary Varshamov–Tenengolts code

Background Here on CGCC, a commonly seen subgenre is radiation-hardening – writing a program that works even if one character is deleted. A similar problem is studied in the field of coding theory: finding an encoding that can be decoded even if one symbol is deleted from the encoded string. In t...

thejonymyster

3:29 PM

@PyGamer0 so what's the hard part

Seggan

5:25 PM

LDQ: is first/last digit of number really that useful or should i add a number overload for those ops?

user

@Fatalize sus

Seggan

same with remove first/last

user

Last digit is useful

But it's basically just mod 10

Seggan

well %10 is 2 chars longer than } sooo

user

@Fatalize Oh, and there's cookie too

Do note that those two are not part of the codepage, your code needs to be encoded as UTF-8 for those commands to work because they're just joke commands

mousetail

5:30 PM

Is this ready to post? codegolf.meta.stackexchange.com/a/24989/91213

DLosc

Thanks to looking more closely at Jo King's quine, TIL about my own language Acc!! that you can leave out closing curly braces at the end of a program.

user

lol

Adám

5:45 PM

@mousetail Any limits on the characters that can appear in input?

Seggan

@mousetail lgtm

adams point is good tho

mousetail

@Adám I'm thinking anything ASCII printable, I'll edit and add a test case

Adám

@mousetail Maybe a case like (((this)))

New Posts

6:06 PM

0

Q: Remove redundant parenthesis

Given a string containing some parenthesis and some other ASCII printable characters like this: (abc((123))(k)) your task is to remove any sets of parenthesis that are redundant. A set of parenthesis is redundant if: It encloses another set of matching parenthesis, like ab((123)) It encloses the...

code-golf string balanced-string

Zion mycelia adamancy

6:35 PM

I may be missing something, but for this challenge, why isn't the identity function the obvious choice?

I think this is an interesting puzzle, where it might not be obvious at first to solvers that competitive answers probably shouldn't write "Hello, world!" at all in the their code. — xnor 21 hours ago

thejonymyster

6:50 PM

@Zionmyceliaadamancy 13 distinct characters

Zion mycelia adamancy

Ah right, missed that

thejonymyster

7:02 PM

you're probably not the first :P

emanresu A

7:37 PM

@thejonymyster Fatalize made the same mistake beforehand

thejonymyster

thought i was getting deja vu lol

Steffan

anyone going to post the lotm on meta?

@Seggan mod 10 isn't that useful, you could make it a digraph

emanresu A

Nah, just pull a Vyxal and make it (along with three other builtins) 2 ** n

Steffan

10 ** n as well

also square

Mod 3 and mod 5 are literally useless, idk why we have it

considering nobody else has, I guess I'll post the lotm

emanresu A

Fizzbuzz

@Steffan Which one?

Steffan

7:52 PM

Knight since it has most upvotes

@emanresuA No, fizzbuzz just needs mod3=0 and mod5=0, not mod3 and mod5

We have literally all 4

New Posts

0

Q: Language of the Month for August 2022: Knight

In accordance with our meta agreement, since one candidate received more votes than the others, we have a new featured language! Throughout August 2022, our Language of the Month will be: Knight What's a Language of the Month? See the meta post for nominations. In short, during August, those wh...

discussion language-of-the-month

DLosc

8:43 PM

@Steffan IDK, if you have a 256-character codepage, I think mod 10 might be useful enough to deserve a single-character builtin (especially if it's overloaded with something else, like @Seggan seems to be proposing).

Unrelated String

^

Steffan

8:58 PM

But he dosen't have a 256 char codepage

It's only 96 chars

att

would it make sense to identify it with string/array last element?

Steffan

Frac byte

Unrelated String

yeah i feel like there aren't a ton of times you'd necessarily want to vectorize mod-10 so there's not much to lose by putting it on last-element

and then it's still effectively a digraph if you need to map it

user

@Steffan Okay we should really remove all 4 of them, Vyxal's too optimized for fizzbuzz

kF should also be removed, it's just cheating

Steffan

9:27 PM

yeah

Ig tomorrow is Jellyfish lyal

Seggan

@user agree

emanresu A

9:50 PM

@UnrelatedString Your new PFP is scary

Unrelated String

10:02 PM

ｈｏｗ

emanresu A

Or, just different I guess

Unrelated String

i guess it is like lower quality than usual

yeah it's the smallest i've had yet

Adam

10:38 PM

I'm trying to use Knight, and I don't know if the issue is with my code or with the interpreter

DLosc

@Steffan tio.run/##y0rNyalMyyzO@P@/gEunTkc9kataQb3y/38A

thejonymyster

11:00 PM

Wrote up a new aw ~~ful~~ esome bounty :P

Transform characters of your choice into "Hello, world!" but the characters of your choice has to be your program :P

Unrelated String

oh no

user

That just becomes a matter of finding (or making) the right language

thejonymyster

it does!

Steffan

@Adam Are you using the TIO link?

thejonymyster

making a lang would be against standard loopholes though :P

Steffan

11:02 PM

If you're trying to use c/ast, I can't get it to work either :(

user

@thejonymyster I don't understand this question. What stops someone from doing lambda c: chr(ord(c)+1)?

thejonymyster

you need to have 13 distinct characters which, when input, output the characters of hello world

Bubbler

Three different chars should map to l and two others to o

thejonymyster

yea that

user

Ohhh

thejonymyster

11:04 PM

also i think if you add one only you fail anyway since one of the inputs would output out of bounds

Unrelated String

the question description should probably bold "distinct" or something come to think of it

because that tripped me up too lmao

@thejonymyster it doesn't have to be valid for all ascii inputs

thejonymyster

i didnt get confused but i agree, that tends to be the part people miss a lot lol

Unrelated String

*all printable ascii

thejonymyster

oh ok, misread

Unrelated String

@Arnauld No, it doesn't need to be in this range. But if you make two versions where one of them satisfies such property and other doesn't, then feel free to share both. — Jiří yesterday

thejonymyster

11:05 PM

i mentally duplicated the "ASCII printable characters (32-126)" when reading the challenge

... maybe all this challenge needs is more space lol

Unrelated String

yeah lmao

thejonymyster

space out each sentence a bit xd

its not like its super long or anything

Adam

@Steffan Yeah, I am

I was also having issues with c/ast because I'm a godforsaken Windows user

emanresu A

@thejonymyster Trying to do this in Vyxal and I've reached the conclusion that it's borderline impossible

thejonymyster

i love evil

emanresu A

11:13 PM

Such a program must either be quinish, requiring code duplication, or be very lucky

@thejonymyster Does it have to be in order, or can you have some permutation of the program mapping to Hello, world?

thejonymyster

permutation allowed

since in order sounds insane

i considered adding a bonus for in order but like

~~it isnt possible lets be real~~

bounty link btw in case someone gets it while im off or whatevr

ive got a few crazy bounties open there

huh, this is my first one where the challenge isnt based on using a specific language

thinking about the type of language that would be built to solve the challenge: maybe one where commands are based on the differences between each character code?

Seggan

> can one house of Congress run a denial of service attack against the other house

Post :P

thejonymyster

omg i didnt expect it to be non literal