The Nineteenth Byte

Mr. Xcoder

15:00

@muddyfish Great. Synced with the online interpreter already?

muddyfish

@Mr.Xcoder yeo

totallyhuman

@ASCII-only Here you go: ↖ :P

muddyfish

I'll see about pinging Dennis to get it updated on TIO

Mr. Xcoder

Don't hurry, I don't think anyone will need that very soon

ASCII-only

@totallyhuman too late to edit sorry

totallyhuman

15:02

imgur.com/sb3XPCk

um

Erik the Outgolfer

@totallyhuman well, you can also do xkcd.com link without oneboxing...

Bobawob

What language are you all talking about?

muddyfish

@Mr.Xcoder And in case you haven't noticed, you can do .>"Test instead of .>"test"

Mr. Xcoder

@Bobawob Me and muddyfish?

ASCII-only

@EriktheOutgolfer but 15 minutes isn't exactly very fast

Mr. Xcoder

15:04

↖ so lazy he doesn't bother to do challenges at all (Right, I did it for you)

Erik the Outgolfer

@Mr.Xcoder ...or do that himself :p

Mr. Xcoder

@muddyfish Why do both "test".> and .>"test work?

muddyfish

@Mr.Xcoder The second is merely a 1 byte shorter representation of the first

Basically the interpreter checks if a string is the last node and if so, swap it with the one before it

Erik the Outgolfer

@muddyfish undocumented :)

Mr. Xcoder

@muddyfish Ah, I see. Nice behaviour

muddyfish

15:06

@EriktheOutgolfer I think it is somewhere :P

I think it's in the language showcase or something

Erik the Outgolfer

not that pyke documentation is all in one place :p

muddyfish

Not at all

That would be sensible

Mr. Xcoder

Most is in the online interpreter

muddyfish

I have links to bits of it though in the readme :P

Mr. Xcoder

(like, the helpful stuff is there)

muddyfish

15:08

I need to spend some time adding documentation to the interpreter as I've neglected some functions

Mr. Xcoder

@muddyfish I see you've also added hex. Why did you remove the cute explanation format?

muddyfish

It sometimes doesn't if it crashes for whatever reason though I might have introduced a bug in it

Mr. Xcoder

uhm

muddyfish

That wasn't intentional if it was removed

It's just bug prone and I didn't want the entire thing to fail because of it

Mr. Xcoder

@muddyfish Ok, we can format it ourselves anyway. Just for reference, if I "copy answer" .>"Hello World", it gives:

##Pyke, 15 bytes

    .>"Hello World"

[Try it here!](pyke.catbus.co.uk/?code=.%3E%22Hello+World%22&warnings=0)



2E 3E 22 48 65 6C 6C 6F 20 57 6F 72 6C 64 22

muddyfish

15:11

Yeah, it probably broke when I added the hex stuff

totallyhuman

@EriktheOutgolfer it's not a comic though...

muddyfish

I had to redo a load of it

Erik the Outgolfer

yeah you can't really uncheck the hex checkbox

muddyfish

Did I forget to make it unchecked by default or something?

Mr. Xcoder

@muddyfish Yes

@muddyfish Both warnings and Hex are checked by default now

@muddyfish feature-request: Add link to the github repo and add just one # in Copy Answer

Erik the Outgolfer

15:21

feature-request: add explanation format back

muddyfish

@EriktheOutgolfer Doing that now

@Mr.Xcoder That second

Mr. Xcoder

Poll: Does the yellow look bothering?

muddyfish

@Mr.Xcoder And that third

Mr. Xcoder

Ok

muddyfish

@Mr.Xcoder looks fine to me

Mr. Xcoder

15:22

Thanks, my interpreter finally looks better

Might make it green though

Erik the Outgolfer

@Mr.Xcoder cthulhu documentation is kinda empty

Mr. Xcoder

@Mr.Xcoder feature-request: Add byte count, Add Test Suite Mode, Add Permalink, Add Output field

@EriktheOutgolfer Cthulhu's source is also quite empty (only 300 lines)

Erik the Outgolfer

are there any "control flow" stuff yet?

Mr. Xcoder

BTW, the Github repo is far behind the real source

@EriktheOutgolfer No

Erik the Outgolfer

I mean, does the language have any besides the empty docs?

Mr. Xcoder

15:26

@EriktheOutgolfer No

muddyfish

@EriktheOutgolfer status-complete

Erik the Outgolfer

@Mr.Xcoder oh

Mr. Xcoder

I didn't write the actual interpreter structure, just adding built-ins at this point

Erik the Outgolfer

@muddyfish umm, it still does hex bug

Mr. Xcoder

It will be prefix though (at least that's what I am trying)

muddyfish

15:28

@EriktheOutgolfer status-complete

Mr. Xcoder

Yay, nice

muddyfish

@EriktheOutgolfer Can you repeat it again?

quartata

@ASCII-only Arcturus

ASCII-only

Oh yeah forgot about that lol

Where did Eridan go

Erik the Outgolfer

@muddyfish yeah the box is still checked and explanation is nowhere

Mr. Xcoder

15:31

@EriktheOutgolfer No, it's not... Refresh

Erik the Outgolfer

oh...still no explanation though

oh, and Never gonna give you up doesn't work

Mr. Xcoder

muddyfish

It's been renamed to .. unfortunately

Mr. Xcoder

@EriktheOutgolfer Explanation is there

muddyfish

I couldn't work out how to keep it with the new update that allows hex

Erik the Outgolfer

15:32

@muddyfish umm, hex is the codepoints of the source code right?

@Mr.Xcoder ok now it's there

muddyfish

@EriktheOutgolfer yes

Raw bytes

Erik the Outgolfer

and why suddenly that can't cope with a 23-byte builtin?

muddyfish

@EriktheOutgolfer because it assumes all builtins are either 1 byte long or follow .?

Erik the Outgolfer

I don't think just taking the raw bytes should assume that? oh wait you mean the hex or the explanation?

Mr. Xcoder

It's better than 23 bytes

Erik the Outgolfer

15:34

but the 23-byte name was all the fun I think

muddyfish

@EriktheOutgolfer I'll see if I can re-add it at some point :P

But it does mean Pyke now has a 1 byte rickroll builtin :3

Mr. Xcoder

BTW, I'd like to have this thing in Cthulhu. A program whose source is The Nineteenth Byte will output the link to the Nineteenth Byte

Erik the Outgolfer

@muddyfish 2 bytes

Mr. Xcoder

Or just open a window if it is ran in the online interpreter

totallyhuman

@Mr.Xcoder that seems a bit hard, unless you hardcode it in

Erik the Outgolfer

15:36

@muddyfish also you can do (Never gonna give you up|\.?.) or something (regex) right?

totallyhuman

regexrolling

muddyfish

@EriktheOutgolfer 0xAE

Mr. Xcoder

brb

totallyhuman

bye

Erik the Outgolfer

@muddyfish for me it returns 0x2E 0x2E

muddyfish

15:38

@EriktheOutgolfer pyke.catbus.co.uk/?code=AE&hex=1

@EriktheOutgolfer It doesn't optimise automatically yet

Erik the Outgolfer

oh so pyke actually has stuff...

muddyfish

@EriktheOutgolfer ?

Mr. Xcoder

Hi

Erik the Outgolfer

well it's either .. or \xae right?

Bobawob

Are most golfing languages made by golfers?

Mr. Xcoder

15:40

@Bobawob Duh, obviously

muddyfish

@EriktheOutgolfer yes. Any command with the format .? can be also represented ord(char[1])|0x80

Mr. Xcoder

Wait, isn't Pyke ASCII-only... Why would you need that?

muddyfish

@Mr.Xcoder The hex update allows it to take raw bytes as formatting instead, hence the hex option

Bobawob

@Mr.Xcoder That seems like a stupid question in hindsight...

muddyfish

All old 2 byte builtins are now representable in 1

totallyhuman

15:42

woo

muddyfish

As well as their old representation

Mr. Xcoder

well, good job

muddyfish

has just increased the command space I have by two

@Mr.Xcoder status-complete

Mr. Xcoder

Wooo, thanks

@muddyfish Why do you still have two ##s?

muddyfish

@Mr.Xcoder Personal preference but it doesn't matter so much

Mr. Xcoder

15:45

ok

muddyfish

@Mr.Xcoder Changed

Leaky Nun

CMC: fastest-code divisors of a number

Mr. Xcoder

@LeakyNun Can we assume the input ain't 0?

Leaky Nun

sure

Mr. Xcoder

@LeakyNun Prolly terrible: lambda x:[f for f in range(1,x//2+1)if x%f == 0]+[x]

Yes, terrible.

Ignore ^^

4.688s for 100000000

Doesn't terminate for 1000000001... Ugh that's bad

EDIT: It does in 51.187 s

Okx

15:57

neim hey a golfing language builtin is better than whatever mr xcoder made

Wheat Wizard

My challenge here was closed as unclear. I've edited it now, is it still unclear?

Mr. Xcoder

@Okx Did I hear Mr. Xcoder?

Okx

no you heard mr xcoder

well you didn't even hear it

Mr. Xcoder

@Okx What time does it require for 138786546788321

Zacharý

Anyone know how to get unicode working in Python2?

Mr. Xcoder

16:00

New algo stolen from SO:

import math

def divisorGenerator(n):
    large_divisors = []
    for i in range(1, int(math.sqrt(n) + 1)):
        if n % i == 0:
            yield i
            if i*i != n:
                large_divisors.append(n / i)
    for divisor in reversed(large_divisors):
        yield int(divisor)

Okx

about half a second

Mr. Xcoder

@Zacharý #!encoding:utf-8

Or # -*- coding: utf-8 -*-

Okx

@Mr.Xcoder still slower than neim

let's face it java is better than python :3

ASCII-only

@Okx just use PyPy

Mr. Xcoder

Pypy

Okx

16:03

you didn't say pypy before

Mr. Xcoder

@Okx My algorithm is made to be good in Pypy. Better than Neim anyway

Okx

hmm maybe you're marginally faster

but i suppose i could write it in java instead of using neim on top of that tto speed it up a bit

ASCII-only

But isn't neim running a pure Java function

Mr. Xcoder

Well, I could write it in C (to avoid the time wasted to compile Python to C)

Okx

what do you mean? java doesn't have a get divisors builtin

ASCII-only

16:05

I.e. you can't speed it up unless you use a way better algorithm

Mr. Xcoder

^

Okx

i suppose

meh

Zacharý

@Mr.Xcoder Thanks, now to find out why my code breaks Python3 :(

ASCII-only

@Okx ... well neim's divisors function is written in Java aren't they

Erik the Outgolfer

@LeakyNun lambda x:[i for i in range(x)if x%i==0] (yeah dunno how good in terms of speed...)

Okx

16:06

yeah

Mr. Xcoder

@Zacharý Remove it in 3.

Erik the Outgolfer

maybe I should ungolf a bit

ASCII-only

@Okx ... well neim's divisors function is written in Java isn't it

Mr. Xcoder

@EriktheOutgolfer Terrible, believe me

Erik the Outgolfer

yeah

ASCII-only

16:07

Sorry mobile edit bug

Zacharý

@Mr.Xcoder It broke before I added that in though, that's the problem.

Leaky Nun

@Mr.Xcoder can do better

Mr. Xcoder

@LeakyNun I know, I am waaaaaaay to lazy to write my own algo rn

ASCII-only

@Zacharý pls post here

Erik the Outgolfer

wait you have solution ready?

Mr. Xcoder

16:09

CMC: Reverse the prefixes of a list.

ASCII-only

Can't you just use primo's sieve

Mr. Xcoder

[1,2,3]->[[1],[2,1],[3,2,1]]

@ASCII-only That's a prime factorizer

Erik the Outgolfer

n = input()
d = [1]
i = 2
while i <= n // 2:
  if n % i == 0: d += [i]
print d + [n]

@LeakyNun (hmm...)

Zacharý

@ASCII-only It's for the MY interpreter, I won't post the whole thing here.

Leaky Nun

@EriktheOutgolfer can be way better

ASCII-only

16:10

Nvm

But the best should be a general number field sieve

Zacharý

bitbucket.org/zacharyjtaylor/my-language/src/…

Okx

@Mr.Xcoder Try it online!

Erik the Outgolfer

@LeakyNun yeah don't see how...

ASCII-only

@Mr.Xcoder wait exactly

Just multiply them together and done

Mr. Xcoder

@Okx Yep, did the same thing :)

@EriktheOutgolfer Takes more than 60 s for 138786546788321

Erik the Outgolfer

16:11

oh I found it

wait nvm

ASCII-only

@Zacharý what's breaking

muddyfish

@Mr.Xcoder Pyke, 2 bytes: _.< Try it here!

Zacharý

NVM, I think some of the code works in Python3, I remember some MY code worked in Py2 but not Py3. I probably forgot a f***ing list.

muddyfish

:P
That might be cheating though

Leaky Nun

@EriktheOutgolfer see the algorithm xcoder posted

Mr. Xcoder

16:12

@muddyfish Now I gotta learn Hex Pyke... No thanks

muddyfish

@Mr.Xcoder I'll just make it so the explainer does the opimising for you

Mr. Xcoder

@muddyfish Ok. Would answers encoded in hex be valid on Main?

ASCII-only

@muddyfish +1 for doing it the Charcoal way

@Mr.Xcoder of course

muddyfish

@Mr.Xcoder I'd assume so given they can actually be ran as raw bytes in the offline version

ASCII-only

It's like Charcoal normal vs grave mode

@muddyfish why not the online version

Mr. Xcoder

16:14

Oh, ok. Cannot wait to answer a challenge in hex Pyke

muddyfish

@ASCII-only Well it can but it's probably quite hard to get it to submit the raw bytes to the interpreter

Mr. Xcoder

@Me Jelly, 2 bytes: ṚƤ

Erik the Outgolfer

@LeakyNun oh he does more

ASCII-only

@muddyfish just paste it in the textarea

Erik the Outgolfer

14 mins ago, by Mr. Xcoder

import math

def divisorGenerator(n):
    large_divisors = []
    for i in range(1, int(math.sqrt(n) + 1)):
        if n % i == 0:
            yield i
            if i*i != n:
                large_divisors.append(n / i)
    for divisor in reversed(large_divisors):
        yield int(divisor)

this is his

ASCII-only

16:15

@Zacharý yeah, in the map functions

Mr. Xcoder

Not really mine

Erik the Outgolfer

then whose?

Mr. Xcoder

Stack overflow's

muddyfish

@ASCII-only It doesn't really like it, it tries to put an encoding on top of it and I'm just using raw bytes without one

Mr. Xcoder

@EriktheOutgolfer Pls No onebox

Erik the Outgolfer

16:17

of course the pairs!

ASCII-only

@Zacharý also pls use a[:] instead of copy.deepcopy

Zacharý

@ASCII-only I should probably redo my code to make map (and filter as well) automatically do list.

ASCII-only

Good idea

Zacharý

Does a[:] have the same references inside of the list?

ASCII-only

Yes

Mr. Xcoder

16:18

@muddyfish So in 5F 2E 3C, 2E and 3C are mapped to one byte?

muddyfish

@Mr.Xcoder Each pair of hex digits is a single byte

ASCII-only

Also eww try except and new_input? Just do it the Logicode way

Mr. Xcoder

@muddyfish Will the interpreter give us 5F BC instead of 5F 2E 3C after the updates?

ASCII-only

github.com/LogicodeLang/Logicode/blob/master/logicode.py#L10

muddyfish

@Mr.Xcoder That's the plan

ASCII-only

16:20

Except you should probably do it the other way around

Mr. Xcoder

@muddyfish ok. Ping me when you add features to it

Zacharý

a=[1];b=[0,a];c=b[:];c[1][0]=4;print(a[0]) prints 4, which should not happen.

Mr. Xcoder

BTW, we should ask some mod to unfreeze the Pyke room

muddyfish

@Mr.Xcoder Probably a good idea as it seems slightly more active than where I left it :D

ASCII-only

@Zacharý oh do you want different references

Zacharý

16:22

Yeah, hence I used copy.deepcopy.

ASCII-only

@Zacharý but still you don't need to list it

Mr. Xcoder

Some mod means Dennis, because Martin seems to be quite busy (not that Dennis isn't), and Alex A and Doorknob seem quite inactive

ASCII-only

@Mr.Xcoder or tricho or wizzwizz

Zacharý

mod almost always means Dennis

Mr. Xcoder

@ASCII-only Yes, forgot all mods can do that

ASCII-only

16:25

@Zacharý also. Pls don't clutter global with functions you can turn into lambdas

I mean seriously? You don't need a separate function to push each value

Mr. Xcoder

@ASCII-only Cthulhu has 100 lines stuffed with 2-line def functions :'-(

Zacharý

Yeesh, I need to remember to not post a link to MYon TNB, I've heard these criticisms before.

Mr. Xcoder

Like:

def inc(a):
    return a + 1

Zacharý

I'm probably going to need one of your help eventually to fix my major problem, when I call ( inside of a ('d function, MY will bork.

ASCII-only

@Zacharý why not fix them

@Zacharý wait what is (

Zacharý

16:27

Apply a function.

ASCII-only

@Mr.Xcoder noooooo why

Mr. Xcoder

It's called bracket IIRC

@ASCII-only I won't turn them into lambdas

Zacharý

@Mr.Xcoder He was referring to the MY command.

Mr. Xcoder

I know

Bad joke

ASCII-only

@Zacharý 0/10 artificial linecount inflation, makes all the time I wasted on Charcoal seem so useless :P

@Mr.Xcoder no what that's [, that's a parenthesis

Zacharý

16:29

I'm just trying to get my code to work! I'll fix stuff like that later.

Mr. Xcoder

@ASCII-only Take a look at them. - 140 in fact

awaits criticism

ASCII-only

@Mr.Xcoder oh god you only have one line between functions

Mr. Xcoder

@ASCII-only Why would I have more?

ASCII-only

@Mr.Xcoder because pep8 says so

Mr. Xcoder

ID even know who pep8 is

Zacharý

16:36

Shoot, I for some reason have 𝟚 incorrectly return the powerset.

Mr. Xcoder

:o python.org/dev/peps/pep-0008

ASCII-only

@Mr.Xcoder :/ those have got to be the must useless functions I have ever seen lol

Mr. Xcoder

@ASCII-only Like?

ASCII-only

I mean you can use them to make python 10x more verbose and that's about it lol

Mr. Xcoder

Huh?

ASCII-only

16:37

I mean seriously you have a function that adds two things

There are even python builtins that do that

Mr. Xcoder

@ASCII-only That's called addition!

Zacharý

They make some sense, if you intend on wanting to possibly revise the functions.

ASCII-only

@Zacharý not really

Mr. Xcoder

^^

ASCII-only

I mean what's the point if you're only going to call them from one point in your code

Zacharý

16:39

cthulu_is_prime though, just set it equal to sympy.ntheory.isprime.

Mr. Xcoder

@ASCII-only Style.

ASCII-only

And worse performance? (Well depends on whether you have to replace them with lambdas I guess)

Mr. Xcoder

No. Performance isn't really affected at all.

ASCII-only

@Mr.Xcoder :| cluttering global namespace unnecessarily != style

Mr. Xcoder

I disagree. I have my own coding style, and I really dislike lambdas in my actual code, except for golfing

Cluttering my dictionary of commands with whole lambdas isn't stylish anyway

Is that really star-worthy?

Zacharý

16:43

It has to be the ":|"

ASCII-only

@Mr.Xcoder but weren't you doing it that way

Also lol Charcoal only uses lambdas (well most of them just call class methods though)

New Main Posts

1

Q: Divisible by 1000003? Easy, just multiply the last digit by 300001 and add!

Given a prime P greater than 10, your program or function must figure out its divisibility rule x, defined as the integer with smallest absolute value which yields a multiple of the original prime when multiplied by the last digit of the prime and added to the rest of the original prime. Example...

Mr. Xcoder

CMC: Play:

Okx

what

Mr. Xcoder

P     P
 l   l
  a a
   y

ASCII-only

16:46

What

Mr. Xcoder

@Okx impatient :P

Okx

write the cmc as one message next time pls

ASCII-only

Does it take input

dzaima

SOGL, 2 bytes: ╝╥ (expects input on the stack so , is added)

Mr. Xcoder

@ASCII-only Yes

ASCII-only

16:47

@dzaima noooooo is it golfier than Charcoal

Mr. Xcoder

wait

totallyhuman

lel

Mr. Xcoder

DON't POST The charcoal

I want to solve it myself first

ASCII-only

It's 4 bytes

totallyhuman

but wait

don't you have to store it in a variable

ASCII-only

16:50

@Mr.Xcoder lucky, mobile saved you

@totallyhuman no?

totallyhuman

@ASCII-only the input

or nvm

polygon

ASCII-only

@totallyhuman nope, that wouldn't even work

New Meta Posts

1

Q: How is my challenge unclear?

Last night, I asked a question here. It immediately received two downvotes and a close vote as unclear without explanation. I inquired as to the reason that it was unclear, both on the question directly, and in chat with no response. Since it had been flagged as unclear it showed up in the clos...

discussion close-reasons

Mr. Xcoder

@ASCII-only PolygonHollow?

programmer5000

@NewMetaPosts already at +1

notjagan

16:52

aww the Charcoal answer to the CMC really feels like it should have been 3

although I guess there are two ways to do it

ASCII-only

@Mr.Xcoder nope

Mr. Xcoder

What's the solution

notjagan

I used ＰV⮌Ｓ

ASCII-only

@notjagan wait lol lemme check

@notjagan me too

totallyhuman

wut

what is that in verbose

notjagan

16:55

↘Ｓ‖Ｏ also works for 4 bytes

Mr. Xcoder

I VTC'ed without even reading it

ASCII-only

@notjagan just got that too lol

notjagan

lol nice

Mr. Xcoder

Program
└Ｐ: Multiprint
 ├Multidirectional
 │└V
 └⮌: Reverse
  └Ｓ: Input string
Enter string:

notjagan

also I feel like Charcoal could benefit from an operator that splits a string in two at a certain index

although I don't know what the output format would be since a list would be weird

totallyhuman

16:57

ＰV⮌Ｓ

o that's the same

XD

i did not know :V was a thing

ASCII-only

@notjagan Also: +1 for learning Charcoal

notjagan

thanks, but I'm still not as good as Neil :P

Mr. Xcoder

Wut?

@notjagan No one is as good as Neil :P

totallyhuman

@Mr.Xcoder get rid of quotes

Mr. Xcoder

Oh

totallyhuman

16:59

what other multidirectionals are there

notjagan

the ref sheet on the wiki has a full list

totallyhuman

:V looks like a emoticon

notjagan

+X*|-\/<>^KLTVY7¬←↑→↓↖↗↘↙

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