The Nineteenth Byte

my solution creates a range 1 to the length of the string, then selects those numbers in the range that are not divisible by the number and takes those from the string

Okx

Mine loops through each char, and if the iteration number is a multiple of the input, deletes the char

Kritixi Lithos

I'm convinced there is a shorter way to do mine

ETHproductions

Aha! 6 bytes!

Bascially replaces each char X with X.slice(0,(index+1)%input)

ASCII-only

1:18 PM

yay my implementation works

Erik the Outgolfer

@ASCII-only Jelly, 6 bytes: Jḟm¥ị⁸

it's so excruciating when you need that last ⁸ at the end

ASCII-only

@EriktheOutgolfer haha

Erik the Outgolfer

also my code could be considered...abnormal

wait where did I get that word it's not ^ in my dictionary lol

Kritixi Lithos

oh really, what does cat /usr/share/dict/words | grep "abnormal" output? :P

Erik the Outgolfer

that's not a golfer's dictionary

I couldn't get the joke

Okx

1:25 PM

cat /user/share/dict/words/golfing | grep "abnormal"

Erik the Outgolfer

that's not a thing at all either

it's not in any computer file by default

Okx

Introducing Golfing OS

Jan Dvorak

you only get a command line, and every command is an abbreviation? No, wait, that's Linux.

ASCII-only

Can anyone find the spec on a;;b;;c (some kind of range) on the Wolfram Language docs?

Erik the Outgolfer

1:44 PM

@JanDvorak wait I think every command is a char instead. 1114112 commands can be named this way and of course there's always a way to type them, as well as aliases

Jan Dvorak

Aliases? What a waste.

Erik the Outgolfer

I mean that otherwise the OS would be impossible to use...of course we can also release a Dennis version without those aliases

Okx

Golfing OS v0.1 - Changelog: Added Dennis

Erik the Outgolfer

ofc command 255 should be continuation command i.e. it must contain whatever commands don't fit in the 0-254 and 256-1114111

ASCII-only

@Okx Usage: dennis LANGUAGE CODE. Golfs code for you.

Erik the Outgolfer

1:48 PM

@ASCII-only that's not what I meant

I meant making an OS in two flavours, normal and Dennis

ASCII-only

@EriktheOutgolfer I mean Okx said he added Dennis to Golfing OS

Erik the Outgolfer

I think he meant he added Dennis flavour on the same repo

also you don't invoke an OS like that

Okx

Goling OS v0.2 - Changelog: Added time travel. Adds upcoming challenges as 1-byte solutions

Erik the Outgolfer

> Goling

also you can only have 256 1-byte solutions

feersum

@ASCII-only Try Head[a;;b] to see what the name of it is.

ASCII-only

1:50 PM

@EriktheOutgolfer Yeah it changes so the 256 chars map to the next 256 challenges

Okx

@EriktheOutgolfer Goling is shorter than golfing.

ASCII-only

@feersum True, thanks

Erik the Outgolfer

@Okx goling just doesn't work though nobody will have an idea of what you mean if they don't think of typos

Okx

Also, we can make multiple versions of the same language complete with 256 different commands

Erik the Outgolfer

true

Okx

1:52 PM

Wait, could we actually do that in practice?

Erik the Outgolfer

yes but it would be non-competing ofc

ASCII-only

@Okx As long as there is an implementation yes

@Downgoat hi

Erik the Outgolfer

> A language is defined by its implementation.

Okx

Like, make a bot that commits to github 1 byte aliases for all possible jelly programs, all day and night

Erik the Outgolfer

-- unknown

@Okx that couldn't be done in practice sorry

Okx

1:53 PM

but... but...

Erik the Outgolfer

there are infinite possible Jelly programs

Adnan

@ASCII-only Python, 49 bytes: f=lambda x,y,n=1:x and(n%y>0)*x[0]+f(x[1:],y,n+1)

Erik the Outgolfer

still use TIO Nexus?

in talk.tryitonline.net, 14 hours ago, by Dennis

@EriktheOutgolfer You should be able to, yes. I'm using it instead of Nexus.

Okx

tryitonline.net still links to TIO Nexus

it links to tio.run/nexus, but tio.run works too

Erik the Outgolfer

it actually links to tio.run too it's updated to reflect

I think previously it had a warning now it doesn't

Leaky Nun

2:04 PM

my steam account was half-successfully hacked

in the sense that they know my email and password, but steam blocked the login attempt anyway

Jan Dvorak

Use a stronger password next time

256 bits or so at least

Leaky Nun

To anyone who understands information theory and security and is in an infuriating argument with someone who does not (possibly involving mixed case), I sincerely apologize.

Jan Dvorak

better solution: keePass

Leaky Nun

@JanDvorak I haven't tried it. Lemme see...

Erik the Outgolfer

there's also LastPass

Kritixi Lithos

2:11 PM

Do you guys think that this is an invalid way of taking input:

1

A: Remove character at specified index

(s)ed - 6 bytes 1-based indexing. s/.//n Explanation: s # substitute command. /./ # match any single char. // # substitution is empty. n # Only match the 'n'th occurrence in a line.

Leaky Nun

thanks @JanDvorak @EriktheOutgolfer

Kritixi Lithos

the OP appears to assume that the input is a part of the code

Jan Dvorak

That wouldn't be okay

but I'm not sure if that's what he does.

Dennis

That is what he does, unfortunately.

Leaky Nun

@JanDvorak can't I view all entries?

Jan Dvorak

2:15 PM

@LeakyNun what do you mean?

Leaky Nun

@JanDvorak I have 6 categories

in the keepass

Jan Dvorak

view -> show entries of subgroups

Downgoat

@ASCII-only hello

ASCII-only

@Downgoat helicopter?

Leaky Nun

@JanDvorak thanks

Okx

2:18 PM

@KritixiLithos I don't think it's valid, as you're only allowed to take input via modification to the code if the language can't take any other form of input.

Downgoat

@ASCII-only sorry I think @TuxCopter hijacked my autocorrect :P

Okx

nope not any more :P

ASCII-only

Charcoal: Now with more Wolfram Language!

Leaky Nun

@JanDvorak how compatible is keepass with, you know, using something on both my phone and my pc?

Jan Dvorak

You can move the keystore by hand

Downgoat

2:33 PM

@ASCII-only fixed link: vihan.org/p/tio/?l=charcoal&p=e79nw/s9W9/… :P

Jan Dvorak

@LeakyNun I think the recommended approach is to have the keystore on a shared drive that both instances then access.

Leaky Nun

@JanDvorak phone...

Jan Dvorak

I don't know how capable the android version is, but you could shuffle your SD card around

Okx

@Downgoat Are you... are you...

quartata

@ais523 FWIW all of the flags I've raised in the last month have been handled in less 24 hours

I think it probably depends on what you're flagging

as Dennis said VLQ or NAA flags might not get seen by mods

Downgoat

2:43 PM

@Okx a goat? Yes

Okx

o

eh well your tio proxy is nicer than dennis'

Dennis

:(

Okx

Well, it does look nice

Dennis

It's also missing most of the features, but whatever.

Okx

That doesn't matter. It looks nice.

quartata

2:46 PM

.

Dennis

I see...

Kritixi Lithos

uh...

quartata

Web 2.0 in a nutshell

2

Kritixi Lithos

No offence, but you sound like a typical iPhone user

Okx

xD and also ew apple

ATaco

2:47 PM

I just want Syntax Highlighting.

Dennis

> just

ATaco

I never said it was an easy thing to implement.

Kritixi Lithos

@Downgoat The Charcoal program does not seem to stop running

Also I cannot stop a program

Simply Beautiful Art

1

A: Largest Number Printable

Haskell, 100 bytes, score ≈ 10↑↑65503 f!x|x<' '=f|q<-(!pred x),r<-(q$q f)[x]=foldl(.)f[f|_<-r,_<-r] main=print$(\x->x++x)!'�'$[pred ':'] The special character (2^16 - 3 ascii) counts as 2 bytes. pred ':' is equal to '9'.

Erik the Outgolfer

@Okx you hurt Dennis...OK Downgoat's at least has syntax highlighting but true golfers don't need that stuff

Simply Beautiful Art

2:51 PM

Could someone check if this answer works the way it should? If so, I'm going to put it on the leaderboard

quartata

I got a stack overflow

but I can increase the stack size one moment

Riker

@DJMcMayhem is there a way to run V in vim?

i.e. typing all the shortcuts and seeing the immediate results

Kritixi Lithos

@Riker I source the V mappings in my .vimrc

So yeah, I can see the results of the shortcuts

Riker

can you gist your vimrc?

nvm

>_>

Kritixi Lithos

Ikr, code links are invisible

quartata

2:56 PM

man that program is evil

Erik the Outgolfer

@KritixiLithos if you have Taco userscripts

quartata

I killed it two minutes ago and I still don't think all the memory has been reclaimed

Simply Beautiful Art

@quartata It's not supposed to run... its theoretical

quartata

well fair

so I guess you mean you want me to read the Haskell not run it

Simply Beautiful Art

That is, does it terminate as it should eventually?

Yeah

Riker

2:58 PM

@KritixiLithos nah this is just my chatception one

doorknob's

woah, I mentioned his name and he appeared :p

Simply Beautiful Art

It should also be the case that f(n+1) > 2^f(n)

Doorknob

@Riker it's magic!

Riker

no it's an eldritch horror but yea I guess that works

quartata

I forgot how nasty golfed Haskell can be

Downgoat

Question: is a C enum by default compiled to ascending integers (0, 1, 2)?

Simply Beautiful Art

3:00 PM

xD

quartata

@Downgoat undefined

feersum

@Downgoat Yes

Riker

the question of the day

which troll to trust

quartata

@feersum shouldn't rely on it though, I'm pretty sure it's not part of the spec

Riker

./s

quartata

3:00 PM

I'm not a troll...

feersum

Well, I'm pretty sure it is defined.

Downgoat

@quartata so if I try to call C function that takes enum arg from ABI, do you have any suggestion on how to do that?

specifically curl_easy_setopt, taking a CURLOPT

Riker

congrats on getting married @StewieGriffin

feersum

@Downgoat Just put an i32.

Compiled C code has no type information.

So you can put the wrong thing as long as it's the right size.

Well, that's not strictly true.

quartata

Yeah, and the only place where you could get what the original enum looks like is the header

feersum

3:04 PM

There's probably some ABI where you could go wrong by putting a struct the same size as an int, or something.

quartata

or have the user redefine it

Simply Beautiful Art

@quartata ping me if you've deduced whether or not the code theoretically terminates and f(n+1) > 2^f(n).

Downgoat

@feersum in LLVM to get a function pointer. do you know if I just do a bitcast void * () @f to i8*?

feersum

@Downgoat You can

But why?

Downgoat

@feersum curl accept function ptr as arg

@quartata no way I'm writing header parser D:

Okx

3:18 PM

I'm not sure this is actually Dennis: codegolf.stackexchange.com/a/121774/26600

Downgoat

@Okx -1 not serious golf attempt

Erik the Outgolfer

@Downgoat actually different algo, I think it counts as serious

Downgoat

@EriktheOutgolfer sorry was joke

quartata

@Downgoat Pytek is going to do it so

but you know there's tools for it right

Downgoat

3:34 PM

@quartata not for JS

quartata

That's not a huge deal though

JS has FFIs right

feersum

The header parsing shouldn't be done at the runtime of your compiler anyway.

If it's something provided as a standard library.

You wouldn't want to get different results because of some weird configuration of the user's C headers.

quartata

I intend to make Pytek bundle any necessary tag files with a gadget if you ask it too

feersum

English please?

quartata

A gadget is like a JAR

So if you have @includec stdio.h libc.so

which means all the symbols defined in stdio.h from libc.so

then when you make a JAR out of it it'll bring over all the data about the symbols it needs so it doesn't need stdio.h anymore

This is when it's interpreted

A Alex

3:47 PM

ರ_ರ

programmer5000

@AAlex I think it's

ಠ_ಠ

quartata

Ah yes now I remember why I wanted to stay out of this room

8

Simply Beautiful Art

lol

programmer5000

@quartata the ಠ_ಠ or the stars?

quartata

both

Simply Beautiful Art

3:50 PM

@programmer5000 The arabic

betseg

I was trying to come up with a golfed answer for the factorial challenge and found this interesting return pattern: Try it online!

programmer5000

@betseg how does it do that? What math is used?

(it looks interesting)

DJMcMayhem

@quartata Well, I've fixed one of those

feersum

@DJMcMayhem Why not the other?

betseg

@programmer5000 returns the latest assignment, which is incrementing m

programmer5000

3:54 PM

@betseg oh

Erik the Outgolfer

@quartata has El'Endia stopped working on Pytek? it seems so

quartata

because he has a job

Erik the Outgolfer

oh...I didn't know

feersum

They say game dev is one of the most brutal programming jobs.

betseg

Can confirm. I program games. I'm ded. So brutal.

Erik the Outgolfer

3:57 PM

although that's not game dev it's golf dev much easier I guess

DJMcMayhem

@feersum 1) It's extremely difficult (nearly impossible) to trash messages from mobile and 2) IMO two faces isn't bad enough to warrant trashing/kicking. That's just my personal opinion though, I'm not sure what the other ROs would say

If it went on longer I would have trashed it though

feersum

@DJMcMayhem Does trashing automatically kick or what?

DJMcMayhem

No it doesn't. But it does notify the user and invite the user to trash which is a minor discouragement

I meant trashing or kicking

Erik the Outgolfer

actually trash is a gallery now

although the invite is still a discouragement for sure

feersum

Well it wasn't even part of the conversation i.e. "disapproving" of any message.

Kritixi Lithos

3:59 PM

@betseg m;f(float n){for(;n>1;n/=++m);m=n==1;}

Erik the Outgolfer

disapproving noise makes much sense and it's so relieving right?

betseg

@KritixiLithos I'm stupid.

Okx

puu.sh/vW3fL/8a850cec08.png Arjun edited my answer to Is this number a factorial? and just what?

Downgoat

@quartata yeah but suck

and not cross-platform

and didn't you and @ASCII-only tell me not to do C/C++

Leaky Nun

4:17 PM

exec"../s/bef *";!/@/

Can anyone explain to me how this works?

quartata

There's a difference between "writing everything in C++ but having weird Node layers in between" and "just using a native library"

New Main Posts

-1

Q: Trim a String without Builtins

Given text, remove leading and trailing whitespace (spaces, tabs, and newlines). Alternate title: Implement your own string trimming. Input ASCII text (printable + spaces, tabs (\t), and newlines (\n)), in whatever format you would like. Carriage returns (\r) are outside of the scope of the in...

totallyhuman

brainflock

Downgoat

@quartata yes, you were saying to not use C++ link list library

quartata

That was different

Introducing C++ into that wouldn't have made anything any easier

That's just Node being terrible

Jan Dvorak

4:32 PM

What.

Downgoat

@quartata yes but would of avoided an AST GC

quartata

@JanDvorak Apparently Node has no weak references

Downgoat

I mean it has weak set but you can't iterate through that for stupid reason

@ASCII-only are we going to JScompiler or LLVM -> JS with emscriptem

Rohan Jhunjhunwala

4:52 PM

Could we please ban the clown who voted to close the sandbox as "opinion based"

Okx

I think banning is a bit too harsh.

Rohan Jhunjhunwala

Sorry, I should have said, just temp remove ability to vote close or something

Downgoat

@ASCII-only btw do we want Data class that is used to store generic data of unknown encoding etc.

New Main Posts

0

Q: Make me laugh, xkcd!

We all love xkcd comics, right? So let's get some! Task Your task is to create a program that will take an integer and output the corresponding xkcd comic. The correct comic is the one that has a matching number in its permalink: https://xkcd.com/<input number> This is where it gets tricky. ...

code-golf internet

0

Q: What season is it?

Task When running the program must show the season according to the host computer's current time. Rules The output must be either: Spring, Winter, Summer or Autumn. The capitalization does not matter. The output must not contain anything else the the season names stated above. A season is 3 m...

code-golf date

Ayoungcoder

Any feedback on my codegolf.stackexchange.com/questions/121796/what-season-is-it challenge?

Simply Beautiful Art

5:04 PM

Um...

can we get beauty filter app to work on things like Youtube?

Phoenix

@Ayoungcoder A) It was just posted by NewMainPosts, B) you're supposed to ask for feedback while the challenge is in the sandbox.

Downgoat

5:17 PM

@ATaco pls share example RProgN file and I can add syntax highlighting for RProgN :D

Arjun

6:04 PM

@Dennis Could you remove comments from this challenge too?

Riker

@Arjun yea, that's one of hte one things i don't like about julia :P

1 indexing, and not having x[-1]

@SimplyBeautifulArt ?

>_> @Arjun

1 sec

quartata

Apr 14 at 3:59, by Dennis

PSA: Mods can see who cast close votes, both pending and retracted. If you think your privileges are toys, I'll take them away from you.

so just mod flag it if you think something's up

New Main Posts

2

Q: Bake me a cake!

This is a cake: _========_ | | +________+ | | +________+ | | +________+ It is 8 wide, 3 tall, and 1 deep. You must write a program that makes a cake from 3 inputs. The first input controls how many underscores there are in the middle and =s on the top. Here's the first ca...

code-golf ascii-art

Dennis

@quartata I was already aware of it and I'll deal with the situation asap.

Erik the Outgolfer

note: take them away probably means suspend or something

Dennis

6:19 PM

Apr 14 at 4:01, by Dennis

@DownWat Sure, by temporarily lowering their reputation to 1. Has some side effects.

Erik the Outgolfer

@Dennis but you can't lower to any other number I guess and side effects are severe

also there will be a banner on the profile page as a result of the lowering...and its contents depend on some drop-down menu choice

especially they will be actually lowered to some level where they can't even ask or answer

Dennis

Are you saying you think suspending someone for abusing their privileges is inappropriate? Because I certainly don't.

Erik the Outgolfer

@Dennis no I'm just saying the facts

where did I imply it's inappropriate?

DJMcMayhem

@NewMainPosts Posted by eartinmnder. Hmmmmm....

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

How many times? code-golfstring Inspired by Rotational symmetry of string. Given a string, return its shortest substring that, when repeated a number of times, will produce the original string, as well as the number itself. Test cases: "ABCDABCDABCDABCD" => "ABCD", 4 "AAAAAAAAAA" => "A", 10 ...

Downgoat

6:30 PM

I totally forgot I set that and got freaked out for a second >_<

quartata

@DJMcMayhem Yeah, and there was an "A Alex" in here earlier.

both of which have joined in the last month

Okx

I made a userscript for HNQ so we can know when we are popular puu.sh/vWaYI/b06cf4c02e.png

DJMcMayhem

@quartata What's next Mennis Ditchell? Dorknoob?

Kritixi Lithos

6:46 PM

nvm I'm stupid

quartata

@DJMcMayhem I don't know but might be worthy of a mod flag

Kritixi Lithos

I thought the depth had to be constant

quartata

in case they're connected

I don't think the "A Alex" is just a coincidence since their first chat message appears to be a disapproval face

anywho

betseg

setbeg

Downgoat

@DJMcMayhem Gowndoat

betseg

6:50 PM

^^looks like two seperate verbs

Downgoat

:O if I wear a fancy gown and duck costume do I become a gowndoat?

This is Polly the goat

Okx

isn't that a duck?

Dennis

JS people: is there a way to replace document with a [object HTMLDocument]?

Without document.write, I mean.

Downgoat

7:13 PM

@Dennis I don't know what you're doing but it's probably not right way (or is this golf?)

Dennis

Not golf. What I'm trying to do is document.whateverMethodToReplaceTheDocument(documentObject), where documentObject is [object HTMLDocument].

The only way I can find is taking a DOMString instead and write it to document.

Downgoat

why do you need to replace document object?

that is really bad idea

Dennis

Why would that be a bad idea?

Downgoat

because then browser has to reload entire page

Dennis

That's my intention, yes.

Downgoat

7:16 PM

also JS event listeners and all would be gone

Dennis

They wouldn't be gone, they would be replaced. Again, that's the idea.

Downgoat

is there any reason you can't just replace the html tag?

window.open would be what you're looking for if I understand your point

Dennis

That creates a new window, no?

Downgoat

@Dennis well document is a global object so you cannot replace that, you can replace the documentElement though (<html>)

Dennis

How?

Downgoat

7:28 PM

@Dennis document.documentElement.replaceWith(DOMNode)

Dennis

Hm, that works, but it doesn't execute any scripts. document.write it is, I guess.

Downgoat

I think you might be wanting an <iframe> which you can modify the document all you want

Dennis

I don't think that would work for my needs, but I'll try.

Thanks for your help.

Simply Beautiful Art

@Riker I just think it'd be funny if I could watch YouTube under such a filter

Christopher

@Dennis if you don't mind saying what do you do for a living?

@Downgoat Only on th internet...

Dennis

7:41 PM

Breathing, mostly.

3

Kritixi Lithos

And you get money for that? Wow, you must be really skilled at that

Dennis

:P

I'm a research mathematician.

New Main Posts

0

Q: What are my dimensions?

Task: Given the area of a triangle, find a Heronian triangle with that area. Any Heronian triangle with the specified area is allowed. A Heronian triangle is a triangle with integer sides and integer area. If no such triangle exists, output with a consistent falsey value. Input: A single, posi...

code-golf geometry

user165474

@KritixiLithos Of course. It's Dennis we're talking about;

VoteToClose

If anyone can help me with my weird Java use case woes, I'd appreciate it. It's also just an interesting thing you can do in Java. :P

Christopher

7:57 PM

@Dennis Wow me to!

@Dennis Ah cool job. Do you just get so tired of typing/writing during real life so to balance it out you golf?

Dennis

Something like that, yes.

Christopher

Makes sense.

Well go have fun doing real life stuff while I spend a nice Saturday relaxing :P

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

There's no place like home I recently watched The Wizard Of Oz and thought that when Dorothy taps her shoes together three times, it would be easier if she used a program to do it. So let's help her. Task Output slippers being tapped together n times. Input A single integer, n, the number of...

Random User

@Dennis This is too short for a private message but I didn't think that it was a particularly helpful post.

Anonymous

@VoteToClose I think your instructor might be a sadist

VoteToClose

8:12 PM

@Mego It would explain a lot. :P

New Main Posts

0

Q: Who's that Polygon?

A convenient and useful way to represent topological surfaces is with a fundamental polygon. Each side on a polygon matches to another side and can be either parallel or anti-parallel. For instance the here is the fundamental polygon of a torus: To figure out why this is a torus we could i...