The Nineteenth Byte

Adám

4:00 PM

E.g. In the imaginary language Stencil, GoL would be just:
3∊(+/,⍵)-0,5⊃,⍵
3 3

HyperNeutrino

oh wow nice

thepiercingarrow

Hi guys o/ haven't been here in a while

Mr. Xcoder

Hi

thepiercingarrow

where bytes control a screen

Mr. Xcoder

@thepiercingarrow That sounds evil...

thepiercingarrow

4:09 PM

oops

anyway I was wondering if this exists already

Cuz I was thinking about how people are always trying to get normal people interested in coding

BF is the simplest/highest level popular programming language

And I hear a lot of new people like graphics

HyperNeutrino

processing

good for graphics

Mr. Xcoder

CMC: Given a String containing letters and spaces, get the endings of the words (runs of letters) and return them in reverse order

"Programming Puzzles and Code Golf" -> "fedsg"

Business Cat

CJam, 8 bytes: qS/Wf>W%

Mr. Xcoder

"JAVA IS FUN" -> "NSA"

5

@BusinessCat That was very fast

Leaky Nun

@Mr.Xcoder Pyth, 5 bytes: s_eMc

musicman523

4:14 PM

Must it return a string, or is a list of characters fine?

Mr. Xcoder

@LeakyNun Ooh, +1 for using Pyth.

@musicman523 Both are fine

Leaky Nun

@Mr.Xcoder then take away the s :)

musicman523

Python, 40 bytes: lambda s:[w[-1]for w in s.split()][::-1] TIO

Mr. Xcoder

@LeakyNun What does e do? I believe it's the main piece in this program because I have trouble understanding it.

Leaky Nun

@Mr.Xcoder end of a string/array

Mr. Xcoder

4:16 PM

Yep, the magic

Leaky Nun

@musicman523 tio.run/##K6gsycjPM/…

HyperNeutrino

@LeakyNun Can I try to do it in Jelly before you ninja me? :) :P

Leaky Nun

@HyperNeutrino sure

musicman523

@LeakyNun rip

HyperNeutrino

yay thanks :D

Jelly, 4 bytes: ḲṪ€U

Leaky Nun

4:18 PM

@Mr.Xcoder Pyth, 4 bytes: hCc_

Mr. Xcoder

Tied

Nice

HyperNeutrino

o0

totallyhuman

you know you screwed up when

  File "/home/totallyhuman/Downloads/Workspace/commata/commata.py", line 85, in run
    'stk_no': stk_no
  File "/home/totallyhuman/Downloads/Workspace/commata/commata.py", line 85, in run
    'stk_no': stk_no
  File "/home/totallyhuman/Downloads/Workspace/commata/commata.py", line 85, in run
    'stk_no': stk_no
  File "/home/totallyhuman/Downloads/Workspace/commata/commata.py", line 85, in run
    'stk_no': stk_no
  File "/home/totallyhuman/Downloads/Workspace/commata/commata.py", line 85, in run

HyperNeutrino

... lol

Mr. Xcoder

@totallyhuman With that I agree. Happended to me ~1 week ago

musicman523

4:21 PM

@totallyhuman The worst part is that your workspace is inside your Downloads folder.

2

Mr. Xcoder

Didn't solve it yet because I don't have the laptop

totallyhuman

@musicman523 that's something i can't avoid on chrome os

i hate it too :P

musicman523

I think the other day I saw somebody running something crazy stupid, like a Windows program inside Wine inside something inside Chrome OS

Mayube

@Mr.Xcoder Braingolf, 17 bytes :( # l[.# e$_M|>]v&@

Adám

@Mr.Xcoder APL: ⊃¨⌽⊆⍨' '≠⌽

totallyhuman

4:22 PM

@musicman523 possible yes

basically you run linux in a chroot

and then on linux you can use wine and then etc.

Mayube

furthest I go is WSL in Windows, and a few weeks ago I managed to get WINE running in WSL

Adám

♬🎝⌼≡⌼🎜♫ ← Unicode music system

3

musicman523

@totallyhuman Yes that's what the missing piece was - linux inside chroot

@Mayube I run League of Legends inside Wine (I run Linux as my main OS) and it's so so so slow

Okay that wasn't star-worthy :P

Mr. Xcoder

@musicman523 It was

Mayube

No it wasn't

musicman523

4:28 PM

To each their own. Methinks we're all tired of the star spamming

Mr. Xcoder

Anyone willing to explain how IN THE WORLD M works (Pyth of course)?

Leaky Nun

@Mr.Xcoder eM is equivalent to med

Mr. Xcoder

No, not in your cmc answer

Leaky Nun

@Mr.Xcoder that also works in general

yM is equivalent to myd

Mr. Xcoder

let me test

HyperNeutrino

4:30 PM

so wait ?M is equivalent to m?d?

Jim

That works only with functions of arity one though

Leaky Nun

@HyperNeutrino ? is not a monad

musicman523

@LeakyNun I think they meant ? as a replacement for any monad

HyperNeutrino

well I meant ? being any function (but apparently only monads)

Leaky Nun

@HyperNeutrino yes, for monads.

HyperNeutrino

4:31 PM

ah ok

pyth looks interesting

Jim

@HyperNeutrino I like it for being a functional language

HyperNeutrino

ah i see

Mr. Xcoder

Solved my own CMC in 4 bytes after you explained map to me @LeakyNun, then realised it was equivalent to your first solution removing s: _eMc :P

Anyway, I tried to write it like _Mec thinking that it works like most of the other functions, but...

Jim

Yeah, the <pf1> is tricky in the description

Mr. Xcoder

Yeah

totallyhuman

4:35 PM

i used pyth yesterday

couldn't work a for loop o0

what's wrong with FN[1 2 3 4)yN

Jim

Well it works

Leaky Nun

@totallyhuman what is it supposed to do

totallyhuman

the python code i was intending is for n in [1, 2, 3, 4]: y(n)

Leaky Nun

@totallyhuman but that doesn't do anything

Mr. Xcoder

@totallyhuman It works unless you have a space in front of F.

totallyhuman

4:39 PM

hold up lemme get a TIO link

Mr. Xcoder

TIO!

But not on TIO though

totallyhuman

this

it errors

Leaky Nun

@totallyhuman because a newline is automatically inserted between the code and the footer

this works

totallyhuman

oh yeah newlines do something in pyth

i forgot that

Mr. Xcoder

@totallyhuman Exactly the reason I toldya: No space in front of F

totallyhuman

4:42 PM

but i solved it with yM[1 2 3 4]

so whatever

Leaky Nun

@totallyhuman nice

Mr. Xcoder

Of course, map-monad abuse :)

Ok, gotta go now. I really want to watch a tennis match :)

totallyhuman

abuse? that's not intended behaviour?

bye

Downgoat

@ETHproductions have you proposed !<op> stuff yet for JS?

Zacharý

5:12 PM

Oh my god, can't believe I beat Adám!

Adám

@Zacharý ?

Zacharý

2

A: The Crow vs The Taxicab

APL (Dyalog), 14 bytes Takes argument in the form xJy, e.g. 3J4 ||-2+/∘|9 11○⊢ Try it online! | the magnitude ofDoc | the argument's magnitude - minus 2+/ the pair-wise sum ∘ of | the magnitudes of 9 11.○⊢ the the argument's real and the imaginary parts.Doc Special trick for golfing...

3

A: The Crow vs The Taxicab

Dyalog APL, 13 bytes +/∘|-.5*⍨+.×⍨ Try it online! Explanation (input X): +/∘| - Sum of the element-wise absolute value of X - - Minus .5*⍨+.×⍨ - Euclidean distance = sqrt(X . X)

(Of course, he did beat me with J)

DJMcMayhem

Thanks.

→ 2 messages moved to Trash

ETHproductions

@Downgoat No, I don't really know how

Do you have experience with proposing JS things?

Zacharý

Hey, are any of those "hidden features" the undocument inverses you spoke about? @Adám

Adám

5:19 PM

@Zacharý Actually, I beat you with j.

Zacharý

What I was referring to was beating your Dyalog APL answer.

ETHproductions

@Adám eheheheh, I see what you did there

Adám

@Zacharý No, the "undocumented" inverses are just logically there. No, it can do all kinds of stuff and access all kinds of settings. One I can tell you about is the ability to adjust character spacing and line spacing in the IDE.

Zacharý

>.< I somehow remember the spacing one from somewhere ... no idea why.

Does Linux have that ability?

totallyhuman

linux has all abilities

3

Adám

5:22 PM

@Zacharý In a terminal, of course not. RIDE: it is just CSS!

@Zacharý Are you on Linux?

Zacharý

Yep. I'm on Linux right now: Dyalog v15.0.29488

Downgoat

@ETHproductions are you on esdiscuss?

ETHproductions

No

I've never been on a mailing list before, haha

Adám

@Zacharý Did you know about the built-in to calculate a checksum (I can't recall which one it is right now) of any file? Try it online!

Zacharý

No ... I did not.

HyperNeutrino

5:29 PM

Yay I started a new language github.com/alexander-liao/paintbrush

I think I should slow down on making new languages

totallyhuman

...another one?

HyperNeutrino

because they all don't work very well lol

totallyhuman

mm well i can relate with one language

because i keep getting recursion o0

Downgoat

@ETHproductions you can subscribe here: mail.mozilla.org/listinfo/es-discuss and then send an email with your porpoisal

HyperNeutrino

rip

totallyhuman

5:30 PM

oh my god

could it possible i just fixed it with

gah

Adám

@Zacharý Read the command line

musicman523

@totallyhuman could it possible i just fixed it with excuse me sir

totallyhuman

look

i'm tryna speak english and python at the same time

2

it doesn't work very well

Adám

@Zacharý Convert to International Day Number

Zacharý

So ... ⎕NQ ... does all the "hidden" stuff?

totallyhuman

5:34 PM

and i didn't end up fixing it so...

i'm one step closer to rage quitting

Downgoat

does anyone here use windows?

Zacharý

Not me.

totallyhuman

a response i'd expect to that question: "ew"

HyperNeutrino

@totallyhuman link?

totallyhuman

@HyperNeutrino to what?

HyperNeutrino

5:36 PM

the thing you're trying to fix

musicman523

@HyperNeutrino it probably hasn't made it to the internets yet

^

o

v

i'm not committing broken stuff :P

HyperNeutrino

5:37 PM

ah ok :P

musicman523

@totallyhuman wish any of my group project members had said that

totallyhuman

although i should get into the habit of making a master and dev branch

Zacharý

I'm assuming that silence = yes.

HyperNeutrino

i want to try to fix :P but i will probably fail

totallyhuman

ok but you first have to understand the mess of my code

that's a big step

HyperNeutrino

5:39 PM

ah ok :P

musicman523

language writing is usually a horrible mess

for my compilers construction class I think all our code put together was like 5,000 lines and we got a 34% on the final portion

:o rip

ouch

jeez

it's okay because the professor was like "i'm gonna call this out of 67 instead of out of 100" (for the whole class)

and we did well on all the other parts

totallyhuman

5:42 PM

ok i'm gonna stop tryna fix this for a while

# TODO

HyperNeutrino

ok

totallyhuman

prettify doesn't think it's python

hmm

Adám

@Zacharý No, I-beams provide most secrets, that for obvious reasons I cannot show. Exception: Localisation shadows identically named objects further away in the calling stack. A secret I-beam (don't use!) allows executing anywhere in the stack: Try it online!

musicman523

just checked - it was 4485 lines

sad out of 10

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Multiply a String and an Integer! code-golf string arithmetic There was a challenge up a while ago about multiplying strings. It showed us how we can multiply not only numbers, but also strings. However, we still can't multiply a number and a string. We need to fix that! Your Task: Write a ...

DJMcMayhem

5:46 PM

CMP (chat mini poll): What's the largest project (by LOC) that you've written at least 90% of by yourself?

HyperNeutrino

loc?

Adám

@DJMcMayhem Bad unit.

HyperNeutrino

lines of code?

Downgoat

@DJMcMayhem VSL. 13K lines

HyperNeutrino

why not bytes?

Adám

5:47 PM

@HyperNeutrino Also bad unit.

Downgoat

which is weird because 1y of cheddar only made 7K LoC, but 2mo of VSL made 13K LoC

Leaky Nun

it's 7 hours until the release of my HKDSE results...

Downgoat

What about formatted-exectuted-LoC

Adám

1 LOC APL ≠ 1 LOC C. 1 byte APL ≠ 1 byte C.

HyperNeutrino

@Adám then what is good unit

musicman523

5:47 PM

@DJMcMayhem Python/Standard ML, around 700 lines I think. 100% myself. My bigger projects (3-5k lines) have been group projects where I've contributed more than half, but not 90%

Downgoat

@LeakyNun is HKDSE like SAT of Hong Kong?

HyperNeutrino

Positron, 1027. I think that's the largest.

Leaky Nun

@Downgoat I suppose so

HyperNeutrino

or no, Anyfix, 1976 lines

but that's including the arities and the functions files, which are each 256+ lines just because formatting

Adám

@HyperNeutrino Dunno. Very hard to measure. When GitHub reports 90% C and 10% APL is it then not a 90% APL project?

HyperNeutrino

5:49 PM

hm ok

Downgoat

@HyperNeutrino Cyclomatic complexity?

Adám

@DJMcMayhem Dyalog APL's ]CopyReg 494 LOC APL. That's a lot! Imagine 300 lines of Jelly?

caird coinheringaahing

CMC: Given two strings, x and y, return the indices of x in y e.g "Hello", "WoHrled" => [2, 5, 4, 4, 1]. len(x) < len(y) and all characters of x are in y.

Downgoat

though bad algorithms can result in that being disproportionally inflated

Adám

@cairdcoinheringaahing APL: ⍳ Try it online!

Downgoat

5:52 PM

@cairdcoinheringaahing cheddar: (=>)+@.find

DJMcMayhem

I'm honestly not sure what mine is. I've done 1k of Python, 1k of C++ and who knows how many lines of vimscript

I don't know how long V is

HyperNeutrino

Is 1-indexing fine?

@DJMcMayhem cat * | wc

caird coinheringaahing

yeah why not?

HyperNeutrino

ah ok. then i@€

Zacharý

tio.run/##SyzI0U2pTMzJT9dNzkksLs5M/v//Ud/UR20TDM0e9Wwz/P8fAA ... what on earth is this.

totallyhuman

5:54 PM

good question

DJMcMayhem

@HyperNeutrino Not at laptop

HyperNeutrino

ah ok

Adám

@Zacharý Oh, that's just censored. However, proceed at your own risk. APL will eventually crash, and may destroy data with it.

Zacharý

Um ... that's the protection mechanism, right?

Adám

@Zacharý Eventually it'll kick in, yes. Although, TIO can't get hurt, so…

musicman523

5:57 PM

@cairdcoinheringaahing Python 2: lambda x,y:map(y.index,x)

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Cyclic strings, hidden programs code-golf popularity-context (quine?) Write 3 programs that do the following task: Let A, B, C source codes of those three programs; if A runs BC is produced as output, if B runs CA is produced, if C runs AB is produced; so each program writes a string (cy...

Zacharý

But the dyalog on TIO might ...

DJMcMayhem

@HyperNeutrino Also, Windows. Would that work on git bash?

Adám

@DJMcMayhem How do you measure LOC across multiple files?

@Zacharý No. New image every time you press Run.

Zacharý

Welp, I have gained even more respect for Dennis.

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