The Nineteenth Byte

Erik the Outgolfer

17:05

@Okx anti-prime means not prime?

Okx

well, that's what wikipedia said ¯_(ツ)_/¯

Erik the Outgolfer

@Okx oh no his arm is broken!

I mean, it even got cut off! and where is a part of it???

Okx

i... uh...

Downgoat

@Okx Ches: n->(|>n=>Math.factor(n).len).max<Math.factor(n)

Erik the Outgolfer

@Okx Jelly, 10 bytes: Æḍ€<ṪẠ<ÆPṆ

Anonymous

17:13

@Okx Actually, 10 bytes: R♂÷♂l;M@N=

Erik the Outgolfer

@Okx or Jelly, 3 bytes: ÆPṆ :P

because if it's highly composite then it's not prime...;)

Okx

true, i guess haha

Erik the Outgolfer

yeah, this boolean table helps a bit:

hcmp -pr-
  0    0 --√
  0    1 --X
  1    0 --√
  1    1 ---

since I only have to account for √s, well, ÆPṆ seems to return correct results

Downgoat

okay I upgraded online VSL REPL so now gives less nonesense error

(just don't use any operator)

Erik the Outgolfer

vsl>1+1
TypeError: No deduction child handler for BinaryExpression
TypeError: No deduction child handler for BinaryExpression
    at RootResolver.vslGetChild [as getChild] (staging.vihan.org/VSL/app/main.bundle.js:9116:19)
    at RootResolver.resolve (staging.vihan.org/VSL/app/main.bundle.js:18697:30)
    at TypeDeductExpression.modify (staging.vihan.org/VSL/app/main.bundle.js:10264:85)
    at VSLTransformer.transform_once (staging.vihan.org/VSL/app/main.bundle.js:10801:28)

yeah this is a real bork

Downgoat

17:19

you were warned :P

Erik the Outgolfer

reverse psychology

Okx

@ErikTheOutgolfer 182 is not prime and not highly composite though

Erik the Outgolfer

@Okx yeah it's not prime so you should return truthy

like I do

Okx

so the 3 byte solution isn't valid

Erik the Outgolfer

23 mins ago, by Okx

CMC: Determine if a number is highly-composite or anti-prime (a number is highly composite if it has more divisors than any number less than itself)

> anti-prime

Okx

17:22

it may say anti-prime, but i did define it

Erik the Outgolfer

well, I'm pretty sure that ÆPṆ checks if the number is prime and then performs a boolean not

Okx

highly-composite != composite

Downgoat

wait shit still broken nevermind

Erik the Outgolfer

highly-composite ⊆ composite ⊆ non-prime

I must check if it's either highly-composite or non-prime...but highly-composite is a subset of composite, which in turn is a subset of non-prime, so...

highly-composite ⊆ non-prime

...it's a subset of non-prime itself, so checking if non-prime covers it too

@Okx your challenge is borked :)

Okx

well forget the anti prime part :P

Erik the Outgolfer

17:26

yes 182 should return truthy then...let's see, 182 can be divided by, excluding 1 and itself...2, oh wait it can be divided by 2 so it's not prime so it's anti-prime so yeah return 1

Okx

it's not highly composite, there's a number below it with equal or more factors

Erik the Outgolfer

but it's anti-prime

Okx

can you stop trying to cheat :P

i provided a definition of what i meant, that should be enough

Erik the Outgolfer

> - anti-prime means not prime?
- well, that's what wikipedia said ¯_(ツ)_/¯

Okx

no i mean

Erik the Outgolfer

17:29

that's your definition

Okx

wikipedia says anti-prime = highly composite

comments do not specify the challenge :P

Erik the Outgolfer

then Jelly, 6 bytes: Æḍ€<ṪẠ

Okx

what does that do?

Erik the Outgolfer

checks if it's highly composite

Okx

you golfed that down from 10?

nice

Erik the Outgolfer

17:34

or 7 bytes (a bit different): Æḍ€>Ṫ¬Ạ

totallyhuman

star abuse™

Business Cat

17:47

Apparently 2 is a highly composite number despite it not being a composite number

Okx

It is highly composite

@EriktheOutgolfer that seems to return 1 for 182

Business Cat

Well yeah because it only cares about the number of divisors the number has

Okx

a number is highly composite if there is no number less than it with greater than or equal divisors

betseg

18:05

ETHproductions

@NewMainPosts Wow, 10 votes, is that a record?

Downgoat

Question: can JS functions be called via .call?

or: []::f(args)

Anonymous

@Downgoat They can be called via .apply I think

ETHproductions

I still have no idea about ::, but .call is just like .apply except it takes in a this followed by multiple arguments, while .apply takes in a this followed by an array of arguments

Downgoat

@Mego ok, call & apply are like same except apply takes 2nd arg as array instead of rest: call(a: any, ...b: any) vs apply(a: any, b: any[])

ETHproductions

18:19

Right

But what are you trying to do? Of course you can use .call to call a function

Downgoat

@ETHproductions I think this mean we can do like @.foo through [].foo but not sure how to bind args

Okx

puu.sh/wuTpQ/b765332055.png whoo top of HNQ

ETHproductions

@Downgoat What are you really asking here? How to use .call?

LegionMammal978

Yay, Steam just finished downloading Elite Dangerous :)

Downgoat

How to bind an argument using bind operator >_<

ETHproductions

18:22

I can't really help you then :P

LegionMammal978

Wait, no, it's just started downloading 3.5 GB more data

Downgoat

apparently there is proposal for flatMap and flatten on es-discuss but it doesn't have a champion yet :(

:| ecmascript.org is donw

New Main Posts

-1

Q: Draw the Canada 150 Logo

Canada's 150th birthday is this Saturday, July 1. Accordingly, this challenge is to draw the Canada 150 logo maple leaf using the fewest bytes possible: Output Draw the Canada 150 logo in any applicable visual format of at least 100 x 100 pixels or 25 x 25 pixels. The "CANADA 150" text at the...

totallyhuman

18:49

@NewMainPosts that deletion was quick

Wheat Wizard

It would have been fun once it was specified

LegionMammal978

@Downgoat Would you mind if I named my ship the Downgoat?

Okx

can downgoat change his name to donwgoat?

LegionMammal978

I don't see why they couldn't, @Okx

totallyhuman

s/wgoa/wgao/

Downgoat

18:57

@LegionMammal978 :O PLS DO

LegionMammal978

19:07

Argh

This thing was made for a joystick

There's no keys for pitch/roll control

Stephen S

@LegionMammal978 You're learning that now?

LegionMammal978

@StephenS Not very obvious if you've never played it

Phoenix

What are you playing?

Downgoat

5

Stephen S

19:23

@LegionMammal978 I haven't, but I would have assumed you'd have looked it up online or watched a YouTube video on it or something before you bought it

I need to maintain constant rep for 6 months, then gain 1 rep

Phoenix

19:39

There is no action which gives exactly 1 rep

HyperNeutrino

@Phoenix Undownvote.

Anonymous

@Phoenix Sure, but you can get net +1 with an accepted edit and downvoting something

Anonymous

Also yeah undownvote is +1

HyperNeutrino

@StephenS Too bad, I just came across a question and upvoted a few answers, and unfortunately for you, one of them was yours :P

Well technically undownvote is --1 which is the same thing :P

Phoenix

Or accept answer and a downvote, I suppose.

Stephen S

19:42

@HyperNeutrino Oh, that was you. Quite possibly, you upvoted that before the reset. Also, that was a FGITW answer, that I completely "stole" from @KritixiLithos xD

Anonymous

@HyperNeutrino But --1 is 1 now and 0 later

Phoenix

ಠ_ಠ

HyperNeutrino

@StephenS ah ok :P

@Mego What?

Oh.

ಠ_ಠ

Stephen S

@Mego I really want a 0++: 0 now, 1 later

Phoenix

Does - - 1 work?

Anonymous

19:44

@Phoenix Nope

Anonymous

Use parens

HyperNeutrino

tio.run/##K6gsycjPM/r/v6AoM69EV9fw/38A

LegionMammal978

@Downgoat y u no PR?

Stephen S

@Phoenix Thankfully not: codegolf.stackexchange.com/a/123551/65836

HyperNeutrino

tio.run/##y0osS9TNL0jNy0rJ/v@/…

tio.run/#jelly

@StephenS That's the point.

Hm. --1 is 1 in Python, error in Java, and -1 in Jelly.

Phoenix

19:47

  required: variable
  found:    value

But... it's a function parameter

Why should it care if it's taking a variable or a value

Dennis

@HyperNeutrino Ah, but what's ---1 in Jelly?

totallyhuman

ಠ_ಠ

HyperNeutrino

@Dennis Good question. I'm guessing it's also -1, but lemme go check.

Oh

Right

- is -1 ಠ_ಠ

Phoenix

@Dennis -1-1

y tho

totallyhuman

ಠ___ಠ

Phoenix

19:49

And why does -1 yield the same thing as --1

Oh wait, Jelly's - is actually _

Stephen S

It's "-1" + "-1" I think

Phoenix

So we've been doing this wrong

Stephen S

Since "--" is "-1" and "-1" is "-1", if I'm reading it right

totallyhuman

uhm why was i kicked?

Dennis

Kannadian faces

Phoenix

19:51

And ----1 is -1-1-1

Adám

@Mayube Our CTO would like to know more about your background, if you're interested.

Dennis

@Phoenix - is a shorthand for -1, so ---1 is equivalent to -1 -1 -1. The first -1 sets the argument (and thus the return value) to -1. The second -1 replaces the return value with -1. The third -1 cannot be parsed, so the previous return value -1 is printed and replaced with -1. When the program finishes, the last return value gets printed implicitly.

Phoenix

Ah. Adding more - just repeats step 3 more times, then.

Dennis

Yes, exactly.

Phoenix

How come the second one replaces the return value, but the third one can't be parsed? I would expect it to do the same thing as the second one.

Stephen S

19:54

@HyperNeutrino your website looks better now, IMO :)

HyperNeutrino

Thanks :)

Phoenix

What website?

HyperNeutrino

hyper-neutrino.firebaseapp.com/index.html

Stephen S

@Phoenix @HyperNeutrino was asking for feedback on the design earlier

Phoenix

Design is quite good.

Adám

19:55

@HyperNeutrino JavaScript

Phoenix

Although I've heard <center> is deprecated and shouldn't be used.

Dennis

@Phoenix A nilad at the beginning of a monadic chain is a special case. It's oftentimes useful to start a monadic chain with a different value.

Downgoat

^^ <center> tag is evil unless you're in a GitHub README and <center> is only way to center

Stephen S

@Phoenix It was changed a bit, originally it was all monospace, brighter blues, and the contact was left aligned in a <ul>

^^ can confirm about <center>

HyperNeutrino

Wait then what to use

totallyhuman

19:56

@HyperNeutrino pls put some favicon though

Stephen S

style="text-align:center"

HyperNeutrino

@Adám ?

Phoenix

@HyperNeutrino CSS

Adám

@HyperNeutrino Capitalise S in Javascript

HyperNeutrino

@StephenS oh wow lol I've been using center all my ~~life~~ what life? rip

totallyhuman

19:57

ninja'd

HyperNeutrino

Oh okay.

Stephen S

@HyperNeutrino Did you learn HTML from a textbook? :P (I'm assuming not) that's all the useless stuff a textbook tells you

Adám

@HyperNeutrino Are you sure you want to expose your email address? Also, your phone numbers are very North America-centric. I'd use +1 (519) 886 1234.

Phoenix

No idea what's wrong with <center>

You're just not supposed to use it

Stephen S

@Phoenix deprecated

Phoenix

19:58

I know, but why

Downgoat

@Adám brb signing @HyperNeutrino up for groupon :P

totallyhuman

in favor of css

Stephen S

@Adám ^^ anything you put there is out there for spam bots and crawlers and w/e

totallyhuman

i'd guess

HyperNeutrino

Please do not do anything stupid with my information >.<

Stephen S

19:59

185

A: Why is the <center> tag deprecated in HTML?

The <center> element was deprecated because it defines the presentation of its contents -- it doesn't describe its contents. One method of centering is to set the margin-left and margin-right properties of the element to auto, and then set the parent element's text-align property to center. This...

Downgoat

:| groupon email validation regex is so bad it only allow one .

Stephen S

@HyperNeutrino We can't speak for web crawlers that look for it automatically though

HyperNeutrino

@Downgoat hahahahaha

@StephenS what do you suggest?

just remove

?

Adám

@Downgoat That's ok, gmail allows arbitrary insertion or deletion of periods.

Stephen S

@HyperNeutrino This sounds decent

Adám

20:00

@HyperNeutrino Require a click on an element to reveal.

Stephen S

150

Q: Effective method to hide email from spam bots

On my homepage, I'm using this method to hide my email from spam bots: <a href="admin [at] example.com" rel="nofollow" onclick="this.href='mailto:' + 'admin' + '@' + 'example.com'">Contact me</a> What do you think about it? Is it effective? What other methods do you know or use?

html algorithm email spam

Phoenix

Dec 15 '16 at 4:02, by Pavel

@wat I just signed you up on Groupon

Downgoat

@HyperNeutrino you can obfuscate like hyper <fundamental particle which only do weak and gravity forces> at gmail.com

HyperNeutrino

>.<

Downgoat

@Phoenix XD

HyperNeutrino

20:01

lol

@StephenS thanks

Stephen S

Are "simple"/"trivial" KC ASCII-art challenges starting to get boring? The up/down ratio on my Rubix cube question seems to indicate that, at least for some people

DJMcMayhem

@StephenS IMO, the problem with that one in particular is that it's basically uncompressible for a lot of languages. There are tooooons of print(.....) answers that don't actually golf it down at all cause that's the shortest thing they can do

Downgoat

they were always boring and I'd personally like to all mark them as dupes of each other

DJMcMayhem

And print(<the text>) answers drive me crazy. I find them extremely boring and annoying

Business Cat

CMC: Print <the text>

Phoenix

20:08

@DJMcMayhem I think they should be banned. It comes up so often, and there is no point to them.

Is there already a relevant meta post, I wonder.

Wheat Wizard

Are there even any good kolmogorov complexity challenges left to be asked? I feel like the topic has been exhausted

totallyhuman

but at some point the challenge isn't very doable without just hardcoding it

Downgoat

I am thinking of doing rubix cube Q as dupe of:

39

Q: Me Want Honeycomb

Write the shortest program that prints this ASCII art section of a hexagonal tiling or honeycomb: __ __/ \__ __/ \__/ \__ / \__/ \__/ \ \__/ \__/ \__/ / \__/ \__/ \ \__/ \__/ \__/ / \__/ \__/ \ \__/ \__/ \__/ \__/ \__/ \__/ No input should be taken. Out...

code-golf ascii-art kolmogorov-complexity tiling hexagonal-grid

though that is probably more complex

DJMcMayhem

@Phoenix Well if you really dislike them, there's like 7 of them here you can go downvote

Stephen S

@Downgoat The answers are quite different, I should have made it bigger though, or even have the user give three integers that are the cube dimensions

DJMcMayhem

20:10

@totallyhuman Exactly, that's a problem with the challenge

Stephen S

Hindsight is 20/20

Downgoat

@StephenS they are same concept though

Phoenix

@DJMcMayhem status-completed

DJMcMayhem

10

Q: Dumping the output as an answer

Sometimes, on kolmogorov-complexity challenges with a constant output, we get extremely boring answers that make absolutely no effort to compress the output whatsoever, and instead just literally dump the exact output the challenge asked for. For example, if the challenge was: Print the follo...

discussion policy code-golf answers

totallyhuman

@DJMcMayhem yeah so no point blaming the answer, right?

Downgoat

20:11

actually wait they are more even closer dupes

DJMcMayhem

@totallyhuman Just cause the challenge is begging for bad answers, doesn't make said answers no longer bad.

They aren't worth posting in the first place

Stephen S

idc if you guys close it or not, I really want this guy to post his answer first though

Downgoat

am I the only one who thinks we should address: "draw this random ASCII-Art thing" [KC] challenegs should be addressed?

totallyhuman

¯\_(ツ)_/¯ i don't see why you'd blame the answers but i can't argue anything further

Phoenix

@Downgoat Some of them are good and have intresting patterns

Wheat Wizard

20:13

@Downgoat yes please.

Downgoat

@Phoenix the author said that about this challenge:

7

Q: ASCII Rubik's Cube

Inspired by this and the following chat: Your task is to output the following: _ _ _ /_/_/_/\ /_/_/_/\/\ /_/_/_/\/\/\ \_\_\_\/\/\/ \_\_\_\/\/ \_\_\_\/ Extra leading or trailing whitespace is allowed, as long as it does not change the appearance of the cube. As usual, returning the ...

code-golf ascii-art kolmogorov-complexity hexagonal-grid

but then the author themselves post this answer:

1

A: ASCII Rubik's Cube

JavaScript (ES6), 95 bytes _=>String.raw` _ _ _ /_/_/_/\ /_/_/_/\/\ /_/_/_/\/\/\ \_\_\_\/\/\/ \_\_\_\/\/ \_\_\_\/` JavaScript (ES6), 103 94 bytes -9 bytes thanks to @Shaggy _=>` _ _ _ ${a=`/_/_/_/\\`} ${a}/\\ ${a}/\\/\\ ${b=`\\_\\_\\_\\/`}\\/\\/ ${b}\\/ ${b}` JavaScript (ES...

which is potentially one of the blatantly least effort answers on this site

Stephen S

What did I say?

Wheat Wizard

Imo kolmogorov-complexity is dead, but ascii-art and kolmogorov-complexity together is the worst.

Downgoat

^

DJMcMayhem

@Phoenix Those might end up being reversed. (obviously I can't say for sure)

Downgoat

20:15

I mean most of the answers are just either output raw bytes, or blatant compression

Stephen S

Hey, look! My rep is back at 2,017

Phoenix

@DJMcMayhem Not enough of them

HyperNeutrino

No, it's 2015.

totallyhuman

tfw when your first answer in your own language is downvoted into oblivion

;-;

Downgoat

These challenges have same problem as catalogs

oh and then there's the HNQ effect

DJMcMayhem

20:16

@WheatWizard I'm sad to hear that. I think they pave the way for lots of low-quality challenges, but good ones are my absolute favorite to answer

Stephen S

@totallyhuman Sorry, I brought it up, I'm getting more downvotes than you though :P

DJMcMayhem

For example, this one isn't bad: codegolf.stackexchange.com/q/128391/31716

It's not the best challenge ever, but it's good

Wheat Wizard

If it was made into a regular ascii art without the KC it would be better imo

Stephen S

Hey, well, the good thing about this challenge is that it gave me a really good idea for a new esolang

Downgoat

@DJMcMayhem Well that actually can be optimized, but I could post a question like:

                  ______._
                 / /    \ \
                / /     / /
                \ \
                 \ \____.
                /    /  \\
               / @   \  / \,
              /       \/    \___          _______
              \____/         \  `--------'       `-,
                ;; |                                `__
                  |                                 ~, \
                  |                                 | ; \
                  |                                 | ),/

Stephen S

20:17

@WheatWizard You talking about mine? I could repost it with three inputs and close the old one as a dupe if you think that would work

Downgoat

print ^ that majestic goat

DJMcMayhem

@WheatWizard What does that even mean?

Downgoat

and probably have 30 upvote by next morning

HyperNeutrino

all by your socks?

Wheat Wizard

@StephenS I was talking about the torrent one

Adám

20:18

@Downgoat That's a sheep with a turban sticking its tongue out.

DJMcMayhem

@Downgoat That would be a bad challenge. I'm just saying they aren't all bad.

Downgoat

@StephenS if yours took input I feel it would be very close to dupe of:

20

Q: Random ASCII Art of the Day #5: Diamond Tilings

Mash Up Time! This is instalment #5 of both my Random Golf of the Day and Optimizer's ASCII Art of the Day series. Your submission(s) in this challenge will count towards both leaderboards (which you can find the linked posts). Of course, you may treat this like any other code golf challenge, an...

code-golf ascii-art combinatorics random tiling

@Adám 0/10 racism :P

HyperNeutrino

plz why this no work

Wheat Wizard

@DJMcMayhem Take in an list of file names and produce the UI.

Stephen S

@Downgoat No, input for dimensions (x,y,z)

Downgoat

20:19

that would have been better

HyperNeutrino

text-align not work

Stephen S

@HyperNeutrino Set margin-left and margin-right to auto I think

Downgoat

@HyperNeutrino make sure oyu make the div an inline-block

HyperNeutrino

o

Now it's even worse

I did do margin-left and margin-right though.

oh hey it works now

Downgoat

@HyperNeutrino btw cns u pls add respnsive meta tag

HyperNeutrino

20:22

?

also did anti webcrawly thingy

wat is metatag

Downgoat

<meta name="viewport" content="width=device-width, initial-scale=1">

HyperNeutrino

anyway will be back soon need like 15m

Stephen S

You guys are worse than meta, downvoting all my stuff after I ask about it :P

New Main Posts

6

Q: Hello, World! (Every other character)

Write a program that prints "Hello, World!". But also, if you take the first, third, fifth, etc. characters of your program, it should still print "Hello, World!". If your program is: abc def It should output "Hello, World!", but so should acdf No solutions with fewer than 2 characters.

code-golf string source-layout hello-world

TuxCopter

20:38

awesome

caird coinheringaahing

20:50

0

A: Sandbox for Proposed Challenges

Texas Koth'em Poker king-of-the-hill card-games python Texas Hold'em Poker is a form of poker, where each player is given 2 cards just for them and between 3 and 5 cards on the table that anyone can use. You aim to get the best hand that you can with the cards available to you. The hand rankin...

betseg

4

nice graph

Poke

@TuxCopter you should watch sethbling's recent smb hacking vids

HyperNeutrino

uh what

negative download bandwidth???

betseg

and lines going backwards

HyperNeutrino

>.< what is this

caird coinheringaahing

20:54

@HyperNeutrino clearly @betseg's bandwidth can go back in time

betseg

not mine, fond on reddit ;_;

HyperNeutrino

ah ok rip

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Texas Koth'em Poker king-of-the-hill card-games python Texas Hold'em Poker is a form of poker, where each player is given 2 cards just for them and between 3 and 5 cards on the table that anyone can use. You aim to get the best hand that you can with the cards available to you. The hand rankin...

caird coinheringaahing

@NewSandboxedPosts you're too late!

HyperNeutrino

oh wait you posted the first onebox?

I thought that was NSP because I always assume that post oneboxes are NMP/NSP if we're not talking about challenges at the moment >.<

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