The Nineteenth Byte

Scratch Scratch

Jan Dvorak

I like Canvas

0

Take that frown and turn it around A celebration of the many faces of APL Given a string among those in the two leftmost columns, return the string's neighbor to its right. The codepoints (other than colon's) are listed on the far right. :⊢ → ⍡ → ⊣: U+22a2 U+2361 U+22a3 :▷ → ⍢ → ◁: U+25...

1:02 PM

0

Patch Tuesdays Calendar Context Patch Tuesday happens every second Tuesday of the month, Microsoft and other companies release their monthly security patch on that Tuesday. Challenge The challenge is to write a program that writes 24 consecutive Patch Tuesdays dates separated by newline to th...

flawr

1:17 PM

@Adám itch itch

Bernardo Meurer

1:33 PM

Okay codegolf people

I need your services

Who can give me the most horrific bash code?

Christian

define horrific

$0|$0 I think will do the trick

Bernardo Meurer

@Christian Akin of done=3;echo done;done

That's not valid because of the last done though

@Mayube Needs to be a bit longer :P

Doorknob

2:00 PM

@BernardoMeurer My friend wrote a web server in pure bash, which some might consider to be rather horrific.

Bernardo Meurer

@Doorknob That's horrible, good lord :P

But it needs to be shorter, I need this for an example of confusing Bash syntax

I had done=3;echo done;done before, but someone pointed out it's kaput

It's for my Bash beautifier: github.com/bemeurer/beautysh

Riker

@flawr ohhhhhhhhhh

ok, I think i was confused about the "n-dimensional" stuff in the help text

I get that now it just confused me

New Main Posts

2:16 PM

6

Q: Draw a big ASCII X

Problem Inspired by a previous challenge doing something similar Given non-negative integer input n output a shape that follows this pattern: input n=1: * * * * * input n=2: ** ** **** ** **** ** ** input n=3: *** *** *** *** ***** *** ***** *** *** *** *** and so ...

musicman523

ps aux | grep $1 | awk '{print "kill "$2}' | bash

That's the worst I've got

It's a really terrible implementation of killall

2:37 PM

Rap Rem Go Mr 5000 is an anagram of Programmer5000.

I'm thinking of changing my username...

Flog Niarb is Brain Golf backwards

I'm thinking of changing my language name...

@programmer5000 What is the point of this whole username anagram thing on PPCG?

¯\_(ツ)_/¯

@programmer5000 It makes it really hard to follow comment threads.

@Adám I have no idea Mdáa

or perhaps Damá works better

2:43 PM

@Mayube what about me?

@Mayube Daḿa!

Why not move the accent?

@cairdcoinheringaahing Car ID

@Adám you forgot a bit :/

@cairdcoinheringaahing Draci ghergniconiahain

pronounced Drake-y Ger-guh-nee-coh-nee-a-heyn

@cairdcoinheringaahing In my chat window, you show up as caird.

@Adám because that wouldn't be a true anagram

2:46 PM

@Mayube Define true anagram for text including accents.

the accent must be above the same letter

it's above an a in your name, therefore it must always be above an a

@Mayube Draco Ghercin Ghainaini

@Mayube What i f I spelled my name Adám?

@Adám you do?

@Mayube Sometimes.

2:47 PM

does the accent actually change the pronunciation in Adám? If so, how?

Adám ≠ Adám

@Mayube we already had this conversation a few days ago

My eyes beg to differ

@cairdcoinheringaahing I wasn't here

a-DAM

@Mayube we already had this conversation a few days ago

@Mayube tryapl.org/…

2:48 PM

The à puts emphasis on the second part

@cairdcoinheringaahing In Danish.

@Adám are you not Danish!?!?

Everyone here is danish

@cairdcoinheringaahing I am.

Who else?

@Adám it was a joke

But I'm sure some people here are

brits are best :^)

2:51 PM

@Mayube Well, I'll be British then. Want me to prove it?

Well @Adám lives in London and I'm from England so yeah

I mean according to Dyalog's website you live in the UK, or at least work for the UK branch of Dyalog

@cairdcoinheringaahing Your username looks Welsh/Scots/Gaelic.

Pure english

it does look distinctly welsh

well, caird looks welsh, I'd say coinheringaahing looks more nordic

2:53 PM

@Mayube They're not lying. Work in Bramley, Hants. Live in London.

> live in london

I'm so sorry for your loss

@Mayube Nordic‽ You're kidding, no?

@Mayube his location on his profile says he lives in London, United Kingdom

@Mayube That's like that ice cream – to quote Wikipedia: Reuben Mattus invented the "Danish-sounding" "Häagen-Dazs" as a tribute to Denmark's exemplary treatment of its Jews during the Second World War, and included an outline map of Denmark on early labels. The name is not Danish, which has neither an umlaut ä (rather, the ligature æ is the corresponding counterpart) nor a digraph zs, nor did the name have any meaning in any language before its creation.

@Adám @Mayube no one has figured out where my username comes from. I'm so happy!

2:56 PM

Hmm, 5 bedroom house in the city centre for only £250/mo, there must be a catch...

@Mayube Entirely underground. Transit terminal upstairs. Each bedroom has only space for a sleeping bag due to support pillars. Easy garden.

@Adám I mean I'd be totally ok with that as long as it had good internet and decent sound-proofing

Pros: 5 minute walk to University, Cons: 5 minute walk to University

@Mayube I actually looked at an apartment which was entirely below ground (with a noisy pub upstairs) and fake windows (to make it feel better). Good price though.

this seems WAY too good to be true, there has to be a huge drawback they're not mentioning

When asked about ventilation, they said it came with a good air exchange pump.

@Mayube Also, the ceiling is only 5 ft?

3:00 PM

Fully furnished, central heating, 3 single bedrooms AND 2 double bedrooms, great location

so why is it so cheap

it's literally cheaper than the 3 bedroom social housing I'm currently living in

@Mayube Great location? Where is that?

like, by a significant margin

@Mayube What‽ I pay £1213/mo for 1 bedroom.

I'm paying around £450/mo for 3 bedrooms

difference is, you live in london

@Mayube Oh.

3:02 PM

cost of living in london is WAY higher than the rest of the country

I live in Sheffield

@Mayube Yes. I looked into it. It would save me money to live in Manchester and commute!

yeah sounds about right

and manchester's still one of the more expensive places to live in the UK, relatively speaking

@Mayube I'd totally live in Bramley if I could.

why can't you?

@Mayube My children have to go to school.

3:06 PM

I mean, I'm sure there are schools in or near Bramley, but I also know that moving kids to a different school and making them go through the process of making friends all over again isn't a great idea if it can be helped

Oooh Dyalog is hiri- oh it's all C positions

@Mayube No, we're looking for APL people too.

I mean.. I don't like C and I don't know APL

I do, however, have an excellent history in C#, PHP, JS and Python

:P

@Mayube We do not expect you to know APL, but you need to be interested in learning the language.

0

Is my prison secure? code-golf Your challenge is given an input of a prison layout to work out whether any of the prisoners can escape. Input Input may be in any reasonable format such as a string, array, array of arrays etc. The input will consist of three characters, in this case #, P and s...

@Mayube I don't like C either, and I have not written a single character of C while at Dyalog (or ever).

3:08 PM

Hmm

@Mayube C# and JS are needed skills here. Dyalog APL is a .NET language, and a couple of major projects involve a lot of or exclusively JS.

totallyhuman

coinheringaahing

Hmm

totallyhuman

i typed that from memory

Hello, again!

3:10 PM

looks up how far of a commute Bramley is from Sheffield

@totallyhuman even I can't do that

@Mayube A bit far. But we have people other places than Bramley, and btw, Dyalog paid my relocation – from Canada!

I didn't know you were a fellow Canadian :)

@BusinessCat I think he mentioned he's Danish, I assume he was living/working in Canada when he was hired by Dyalog

@BusinessCat I'm kind of a world citizen. Most of my life has been lived away from my country of birth, and in no place have I lived a majority of my life.

3:13 PM

Ah that's cool

honestly I'd love to live in Iceland, but given my skillset if I wanted to work in Iceland I'd either end up working for CCP or a security firm of some sort

I'd like to at least visit Iceland sometime, it seems like a really great country

@BusinessCat Mayube is right, but I've lived a total of 5 years in Quebec, which makes it number three on my time spent living list.

@Mayube Yeah, Iceland (or Greenland) would be nice. At least I'd have a language advantage.

@Mayube Do you want me to set you up for an interview?

@Mayube Dyalog has a house in Basingstoke for those that live far. I stay there from Sunday night until Thursday, and then I'm home in London for the weekends.

@Adám I dunno, might still be a bit lacking on the experience/qualifications side of things

@Mayube Doesn't hurt to apply, does it? I had absolutely no CS (or any really) education. They taught (and continue to teach) me what I needed to know.

feersum

3:22 PM

Dang it, why are there no US code golfing jobs? :P

@feersum Just to avoid misunderstandings: my job is not exclusively to golf. That being said, my team leader lives in upstate NY, and he just got two new interns there.

feersum

... is it partially to golf?

@feersum Also, our competition (IBM and APLNow) are US based, and there must be plenty of K opportunities too.

Leaky Nun

@PyRulez hi

@Adám True, I've got lucky so far, and I like to think I at least have the programming knowledge to back myself up

A: Do any of you golf for a living?

3:26 PM

@feersum Yes:

12

Yes, I do! I work for Dyalog. Part of my work is "spreading the word", and that officially includes code-golfs. In fact, our APL team is looking to hire, and we are more interested in golfers than regular programmers, as the former are more likely to have the right mindset. At least one active ...

Have you ever wondered what the kolmogorov complexity of say, the works of Shakespeare, would be?

@PyRulez When written in Shakespeare?

Oh course

*Of

oh god

Q: Output the entire works of Shakespeare in the programming language Shakespeare kolmogorov-complexity

3:29 PM

@PyRulez I'm afraid the max length on SE posts will not allow that.

link to a pastebin?

it's been done before

How about: Given a text, output the Shakespeare code which will output that text when run. code-generation

community.beliefnet.com/miguel_de_servet/blog/2011/01/19/…,shan‌non_and..._shakespeare:_different_concepts_of_information

huh, the link broke by pasting

goo.gl/OhLXep

Oh dang, what is beliefnet.com?

I just searched for the kolmogorov complexity of shakespeare and that comes up.

@HyperNeutrino Can confirm, haha. I don't understand how you guys survive without sleeping for 7-8 hours each night. Whenever I try it I end up like I did last night

I was so tired that I shut off my alarm in a dream and didn't realize until half an hour later :P

Fortunately I still got out the door only a couple minutes late

3:51 PM

 ✘  ~  shutdown --help
zsh: command not found: shutdown

Program 'shutdown' is present in package 'systemd-sysvinit', which is installed on your system.

Absolute path to 'shutdown' is '/sbin/shutdown', so running it may require superuser privileges (eg. root).

ಠ_ಠ

4:10 PM

I think at this point it can definitely be argued that we're getting waaaay off topic for the scope of this channel :P

I think it's been off-topic for at least twenty minutes :P

code-golf array-manipulation

"While off-topic conversations are allowed in The Nineteenth Byte, they should not get in the way of on-topic discussions. The Nineteenth Byte's purpose is to provide a place for users to discuss PPCG."

New Main Posts

2

Q: Group a List by Frequency

Given a list of integers, group the elements which occur most first, then group the next most and so on until each unique element in the list has been grouped once. Examples: Input: [1,2,3] Output: [[1,2,3]] Input: [1,1,1,2,2,3,3,4,5,6] Output: [[1],[2,3],[4,5,6]] Input: [1,1,1,4,5,6,...

-3

Q: Java Program Help (Yes, homework) Sorry

Hoped you could help out. Write a program that generates a random number between 1 and 100, then allows you to search for matching values. Output is printed for a sorted and unsorted list. Thanks in advance.

array-manipulation

And everyone here seems happy discussing the current topic so I don't see a problem

yeah fair enough

4:12 PM

Also, FWIW: Kudos to everyone here for having a very level-headed and respectful conversation about a touchy topic.

5

Can someone explain to me, why the same Ubuntu font is able to render ಠ just fine on Fedora and Ubuntu, but on chrome for OpenSUSE it shows boxes? And it shows boxes in any font I try. I am confuse.

@Phoenix [insert joke about OpenSUSE]

(I'm using an extension to use custom fonts in TNB)

Might be that OpenSUSE's font support doesn't like Unicode

(ノ°Д°）ノ︵ ┻━┻ for example randers just fine

But ಠ_ಠ, nooooo

4:18 PM

ah

*too

@Phoenix The Ubuntu font doesn't render ಠ on any system as far as I know. Ubuntu has terrible Unicode support.

@DJMcMayhem I think the conversation should be moved to trash or another chat room. Please move the off-topic stuff.

@Dennis But it worked on Fedora

I used the same exact Stylish theme

And it can't render it when I disable Stylish to, and I tried Roboto as well.

@Phoenix The browser doesn't use just the font you specify. If that one doesn't work it falls back to one that does.

4:20 PM

@programmer5000 >"While off-topic conversations are allowed in The Nineteenth Byte, they should not get in the way of on-topic discussions. The Nineteenth Byte's purpose is to provide a place for users to discuss PPCG."

@programmer5000 why? We're not in the way of any on-topic discussion afaict, this discussion has been going on for about 30 minutes now without issue

And it looks like ppl are having a perfectly good discussion about Ubuntu Fonts

Ah. Now where can I find a font that does work. Hmm...

In the middle of our perfectly good discussion about Christianity

And also IDK how to set fallback font >_<

4:21 PM

Yes AFAIK that's accurate @PyRulez (Unless you are LDS, in which case you likely know more)

Technically, there are two concurrent off-topic discussions right now.

(Hint: I am, and I was trying to simplify.)

@many Please move your discussion to Christianity Stack Exchange.

WHY DOES NOTHING WANT TO RENDER ಠ

Okay, lesson over

OK, I'm done now. Dennis is right

Erik the Outgolfer

4:23 PM

@Dennis specifically The Upper Room I guess?

@PyRulez If DJ moves this into a non-Trash room I have a follow-up q

I don't really want to move a couple hundred messages into an off-site room. I feel like it would be somewhat disruptive to have a bunch of conversation from users they don't know thrown in there without them knowing about it

@MDXF okay

Can anyone who can see ಠ tell me what font it's being rendered in, so I can install this font?

@DJMcMayhem You could create another room?

4:25 PM

@MDXF @EriktheOutgolfer I have zero ideas about what Christianity chat rooms do what and what's on topic there. Maybe ask a Christianity mod?

We would but El'Endia left

If we make a Mormon chat room, I vote we call it "The MTC"

@Phoenix font-family: Verdana,Arial,sans-serif;

@PyRulez +1 idea seconded

I know many people who served Mormon missions

@Phoenix Just search for Kannada in the software manager.

4:26 PM

@Dennis Ok, thanks

Noto Sans Kannada iirc.

user165474

@MDXF Can't you?

@Dennis It worked thanks!

oh and @Adám given I didn't actually answer your question, I'd definitely be interested in applying at Dyalog, and for that matter learning APL regardless of the outcome

user165474

APLying?

4:30 PM

No

News sites:

Mormonism: The MTC

General discussion about Mormonism, the LDS Church, and relate...

→ 135 messages moved to The MTC

I think that's the most messages I've ever moved

@DJMcMayhem There's more

There are at least 25 messages about Mormonism after that one

I just spent some time looking through the packages available on YaST. Apparantly there's a GCC Java.

Huh

4:37 PM

@Phoenix There's a GCC for nearly every popular language

Fortran, Objective-C, C++, Java, etc

4:49 PM

@Mayube Let me know if I can be of any help.

5:02 PM

This sandboxed challenge seems to be fairly well-received, so unless anyone has suggestions or question I'm going to post it now.

user165474

I'd say go for it. It looks pretty good; no negative feedback and 4 upvotes so probably good for main.

@ETHproductions May we have spaces between the columns?

@Dennis Web designers != developers

@Adám Not sure what you mean. Basically have an extra space between every pair of columns?

i.e. for 3:

  #
# # #

@ETHproductions Yes, exactly.

Makes it easier to read.

5:08 PM

0

For Meta: Any tags other than code-golf and math? Any other problems? Your Task: Write a program to output the nth Catalan Number, where n is the inputted integer. Catalan numbers are derived using this formula: C(n)= (2n)!/((n+1)*(n!)squared). Input: An integer Output: The Catalan Nu...

@Adám I'm gonna say no... why, would it be shorter in a specific language?

@ETHproductions Because there may be default single space between concatenated things.

New Main Posts

3

Q: Create a binary ruler

Given a number n, generate the first n columns of this pattern: # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ################################ ... The height of the column at ...

code-golf ascii-art

0

Multi-Powered Numbers For Meta: Any problems? Dupe? Clear enough? Your Task: Code a program or function that outputs how many times an inputted number is a power. For instance, for the input 16 your program would output 2, because 2^4 and 4^2 both equal 16. Input: An integer. Output...

I do not understand why new challenges get starred seemingly randomly...

2

user165474

5:24 PM

It's rolled using a d20, though a different one from the one used to star Dennis's messages.

Riker

anyone see why this is erroring? this is the output of make install

( cd /usr/local/slashthemdir ; \
			chown games license Guidebook.txt ; \
			chgrp bin license Guidebook.txt ; \
			chmod 0644 license Guidebook.txt )
chown: games: illegal user name
chown games /usr/local/bin/slashthem
chown: games: illegal user name
make[1]: [dofiles] Error 1 (ignored)
chgrp bin /usr/local/bin/slashthem
chmod 0755 /usr/local/bin/slashthem
touch /usr/local/slashthemdir/perm /usr/local/slashthemdir/record /usr/local/slashthemdir/logfile /usr/local/slashthemdir/xlogfile
( cd /usr/local/slashthemdir ; chown games perm record logfile xlogfile ; \

@HyperNeutrino please provide dice formula

@ETHproductions I star the posts of challenges I like.

What flag do I use for submissions that don't meet the criteria? Not-an-answer?

user165474

RFC 1149.5 specifies 4 as the standard IEEE-vetted random number.

@Mendeleev Why are you defending them so vigorously? A web designer (any kind of designer, actually) should know that you cannot use another brand's icon for your own product, and do their due diligence prior to using any third-party resources.

@Dennis I'm saying that the web designer may have not known about the existence of the site - if I was looking through an icon font, I wouldn't assume that it contained brands that require special usage

5:37 PM

It's from a huge block called brand icons for crying out loud. It doesn't get any more obvious than this.

Any professional worth their money will create a product you're actually allowed to use.

There's more to web design than ooh, this looks pretty.

Mr. Xcoder

Anyone here using JS a lot?

Me somewhat

@Dennis Not what I was going for at all

Mr. Xcoder

@ETHproductions If you don't mind, what do you rate as a good development environment for JS and web-related languages?

webstorm?

5:41 PM

Oh, I don't do a lot of web developing... I use Brackets somewhat though, which is designed precisely for using JS/HTML/CSS together

Mr. Xcoder

Thanks to both

Is there any IDE that has live preview of Slim (other than Codepen)?

Never mind

I would prefer for it to not be Atom because that's an Electron app so it's heavy and doesn't support bitmap fonts

(removed)

user165474

This may be a stupid question but how does one do pop a -> range(a) in 05AB1E?

Kritixi Lithos

@MistahFiggins You took the IB right? What did you do your Math IAs on? I'm just looking for ideas now

user165474

5:50 PM

Oh wait it's called Ý

user165474

because of course it had to be push [0 .. a] so I couldn't do Ctrl-F on range >_>

user165474

Or in my case I want L

if I stored an IPv4 in a Binary type column in a MySQL, how would I perform a query to pull a specific IP?

@HyperNeutrino Yeah, the descriptions don't make it easy to Ctrl-F

Speaking of 05AB1E, is there an easy way to get just the first element? Like ¬ but without leaving the whole array on the stack?

@Adnan ^

user165474

Fortunately there are "only" 256 things to look through... >.<

user165474

6:03 PM

How does one map over a function in 05AB1E?

@HyperNeutrino Do you mean for each element in an array do something?

Mistah Figgins

@KritixiLithos I'm actually in the process of doing IB, at the end of the first year. I'm in Math HL, so no IA yet.

Kritixi Lithos

ah, okay, our math teacher just told us about preparing for IAs next year

Poke

@Mayube probably depends on your language and sql driver

any reason you wouldn't just store it in an INT

or a varchar

user165474

@Riley Yes. (map(function, array) in Python)

TuxCopter

6:15 PM

7

@HyperNeutrino It kind of depends on what you want to do. Most commands will vectorize, so if you want to subtract 1 from each number you can just use <. If it doesn't vectorize you can use € to run the command on each element.

user165474

Oh okay, thanks.

betseg

There is also v which is a for each loop (y is the element from the array). It doesn't keep it in an array though. For example, to print every element you could do vy,

user165474

Okay

Okx

6:25 PM

@TuxCopter old

> :( Yo

6:46 PM

...maybe you should make it ignore itself :P

It already does

Ah

I take it it's not well received

Has something like 54 karma just from 12 hours of running

Does it have any non-negative posts?

6:49 PM

yes

Just look at its user page

reddit.com/user/LinkReplyBot

"duplicate link" Sorry, I think I missed the joke at first... :P

I think you did :P

Hey look, there's one with +4

Wow, +14? Impressive

Sort by top

There's one with 27

Something went wrong, it only lets me go up to the +1 posts

Ah, there we go

@Mendeleev It got deleted tho?

6:55 PM

Yep, "not welcome" apparently

I can see why

Downgoat

iOS Quetion: how to update height of a UIView without modifying it's frame? if I expand the layer with a CGAffineTransform or a CATransform3D, the contents of the UIView is changed but not the actual height