The Nineteenth Byte

caird coinheringaahing

00:22

@Fmbalbuena Sorry it took so long, I had to go grab something to eat. I'v edited the post, feel free to change anything

I'd suggest adding some more test cases

caird coinheringaahing

01:29

reddit.com/r/programminghorror/comments/qc0cjm/…

If this person ever joins the site, are we allowed to ban them on sight? :P

Fmbalbuena

@cairdcoinheringaahing Thanks

lyxal

So uh TIL Dennis made TIO from a Christmas tree

As you can see, that clearly says TIO and not T10 /s

Fmbalbuena

@cairdcoinheringaahing I'm done to upload? or wait more?

Unrelated String

@cairdcoinheringaahing i saw that post a week or two ago and actually just died for a bit

user

01:46

@cairdcoinheringaahing I don’t even see what their goal was

Fmbalbuena

02:05

@cairdcoinheringaahing I'm Already done?

user

@Fmbalbuena Yes?

Fmbalbuena

@user Why you say?

user

Oh, was that your deleted message?

I got a notification showing a message from you that just said “@ user”

Didn’t see the message was gone

Fmbalbuena

@user Hey is this Sandbox post correct?

user

Idk, no such thing as correct

Why ask me specifically? I’m no authority here lol

lyxal

02:36

Hmm yes I do love it when utf8 scoring is used

Very cool

link

Jelly is a supported language on that site too btw

Just in case you want to get gamed on by Unicode

emanresu A

03:00

@pxeger Can you install some basic modules (At least numpy plz) on ATO?

@lyxal Maybe we should add "Vyxal core" or something

Basically Vyxal's most important stuff

hyper-neutrino

@RedwolfPrograms i have my copy of NPSP up since yours died

lyxal

@emanresuA a ascii-only sub version for each release?

emanresu A

¯\_(ツ)_/¯ No idea :P

hyper-neutrino

03:16

you don't need that

just make a version of vyxal that reads in the byte range 00-FF instead of its own codepage

lyxal

There's already a flag for that

But the scoring for that site uses utf8

hyper-neutrino

wait does that even work

nvm if it uses utf-8 that's only marginally better

Bubbler

What happens if you submit invalid utf-8 sequences

lyxal

I don't know -

@hyper-neutrino besides, there's no options for cli flags anyway

hyper-neutrino

i know

that's why i'm proposing a side version to get around the encoding issue on this site

i already know about the flag but it wouldn't work, you're the one who brought it up lol

lyxal

03:19

I don't think there's any getting around it without having a completely different version

PyGamer0

CMC: Cause a OverflowError: Python int too large to convert to C long error in python

lyxal

03:36

I can get OverflowError: cannot fit 'int' into an index-sized integer pretty easily

but I can't get that one error

Bubbler

raise Exception('OverflowError: Python int too large to convert to C')

hyper-neutrino

wouldn't you raise OverflowError("...") lol

Bubbler

It was meant to be a joke but lol yeah it works

lyxal

@hyper-neutrino yeah but where's the fun in that?

hyper-neutrino

fair enough

Razetime

04:00

@PyGamer0 here's an attempt: Try it online!

gotta use some C bound thing like numpy or time

PyGamer0

@Razetime Try it online!

outgolfing feels good

Razetime

@PyGamer0 Try it online! for an easy -3

PyGamer0

getting outgolfed feels bad

lol

how does python have these expandible int sizes?

CMP: Favorite practical programming language?

Bubbler

04:19

Rust, followed by Haskell and Python

Razetime

I'm in a language identity crisis but most of the time I'd say Ruby

Unrelated String

it's been too long since i've actually programmed in a language of my choice but i'll probably end up falling into the rust camp

PyGamer0

i have programmed in rust before

languages with different paradigms are cool

than the usual python/c/java

Razetime

rust is quite good but i got little experience

PyGamer0

i cant judge about rust

Razetime

04:27

python has libraries for every paradaigm afaik

PyGamer0

@Razetime hmmm graphics paradigms

so haskell in python?

hasthon?

Bubbler

That would be more like hasthonofproblems

Redwolf Programs

@hyper-neutrino Oops, sorry about that. That was just 10m of planned downtime, I had to restart after some updates.

hyper-neutrino

ah

can(should) i take down my copy now then?

Redwolf Programs

Sure, go ahead

PyGamer0

04:52

i have earned the excavator badge

Redwolf Programs

> The M10 [grenade fuse], used during the interwar period, and the M10A1, used early in WWII, sometimes prematurely detonated when the flash from the primer hit the explosive charge rather than the delay fuse.

Ah yes, because that's exactly what you want to hear

lyxal

Someone probably was like "heyo there's something majorly wrong with these grenades" and the manufacturers were just like status-declined

Or just replied with wont-fix

hyper-neutrino

05:10

idk man didn't happen when we threw the grenade so status-norepro

Redwolf Programs

I mean there's wasn't a single person alive who'd had that happen :p

lyxal

vtc as needing more details lol

emanresu A

06:13

@PyGamer0 JS

3

Bubbler

07:08

@Anush Actually I don't. I thought it was the same as your last cmc (this one) and my answer to it uses a very simple closed-form formula. The main challenge is totally different (by adding the parameter m) and it doesn't have one. (It is possible to directly calculate the necessary numbers but it takes worse time than plain DP)

I did try to solve it but it now feels like horrible waste of time.

PyGamer0

07:22

why do i feel like writing input().find_index('a').to_arr().reshape(2,2).set_0((0,0),(1,1)) in python

Anush

@Bubbler oh that’s a shame, I was really looking forward to your answer

@Bubbler what is your answer without the m?

@PyGamer0 covid?

PyGamer0

@Anush lol no

Anush

:)

We should have a covid counter for TNB

PyGamer0

i dont think i ever got covid

Anush

That’s great!

vaccinated?

I haven’t had it either

Adám

07:33

@Fmbalbuena No, it is not. It counter-factually claims that ~ is ASCII 127 when it is in fact only 126.

Bubbler

@Anush The closed formula is: For given l and s, the number of arrays with the first entry being >=i is (s-i+l-1)Cs. Then we can bisect i over 0..s and iterate for each entry to get O(l*min(l,s)*log(s)), which can be better or worse than plain DP depending on input.

I thought it would be O(l*log(s)) but no, calculating combination takes time...

Anush

@Bubbler that is cool

I like l*log (s) as a possible time complexity!

Bubbler

Honestly DP is way too OP

Anush

way too OP?

Bubbler

overpowered

Anush

07:44

I am missing some street slang :)

Aha

Are rank and unrank equally fast in this approach?

Bubbler

For unrank you can skip bisection and count things directly, so O(l*min(l,s))

Anush

That is cool

I was wondering if this question was easier. Given an array , compute the next one

Do you think that might be faster/simpler?

PyGamer0

10

Q: Golfing Expressions

We can write mathematical expressions using the standard math operators (,),+,*,/,- available pretty much universally. We allow the symbols a, b, c, d and integers (e.g. 1, 45, etc.) but will restrict to just these four symbols. (Bonus points if you can handle more.) The goal is to take an expres...

Try it online!

well thats ^ a start which probably will never finish

Bubbler

@Anush With length l, sum s, element max m?

Anush

@Bubbler yes

Maybe that can be done in l+m+s time?

Or better :)

That was going to be a fastest-algorithm question but I feel bad I don’t know the answer

Bubbler

07:54

I think it can be done in plain O(l)

Anush

@Bubbler would you be able to write this out in python please, I realise I am not 100% sure I understand it yet

Bubbler

Identify the "ultimate suffix" i.e. the longest suffix that cannot be incremented, increment the previous item, and distribute the rest in smallest possible way

emanresu A

And... the wifi starts working again!

Also why have three people starred ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^?

Bubbler

@Anush Basically this but you don't need to sort the suffix, you just calculate it

Anush

@Bubbler thanks

@Bubbler I feel a golfing question coming on :)

Hmm…. Say l =m=s=3 and we start from 0,0,3 . We want the next array. We need to decrease 3

Bubbler

08:04

Python delivered

PyGamer0

@emanresuA basically

chat.stackexchange.com/search?q=js+is+weird&room=240

Anush

@Bubbler wow! Thank you

caird coinheringaahing

@Fmbalbuena Always leave posts in the Sandbox for a minimum of 3 days

@Adám That's my fault, I can never remember which one ~ is. Feel free to correct it

Anush

@Bubbler could I ask for the same awesome service for unrank please?

It’s so much easier to understand in code for me

PyGamer0

CMQ: Lets say you made a cool progra. on TIO, now where do ou save the link?

Adám

08:07

@cairdcoinheringaahing I'll give you an easy mnemonic: Back when code was written on punch cards, you would "delete" written patterns by punching out all the positions, i.e. 1111111 which is 127, so 127 is Delete, and ~ has to be right before that at 126.

pxeger

@emanresuA sure; what other suggestions do you have?

Bubbler

@cairdcoinheringaahing One way to remember it: 127 is DEL and could have caused every challenge to be solved in Lenguage, 0 bytes

@PyGamer0 I use HackMD as a cloud scratchpad

emanresu A

@pxeger Idk, just someone posted a Python 3.8+numpy answer and I couldn't find anywhere that supports both.

sympy?

PyGamer0

@Bubbler ty

Bubbler

@Anush What kind of unrank?

emanresu A

08:10

PIL and other image stuff maybe?

pxeger

hmm yeah, ok

PyGamer0

@pxeger sympy, pandas

and maybe integrate the jupyter console :P

for graphics

emanresu A

Can someone write me an SEDE query for all Python answers on the site?

@PyGamer0 It's an online interpreter service...

Anush

@Bubbler without the m. The one you had a simpler solution for

PyGamer0

@emanresuA that can do graphics :P

emanresu A

08:13

Not easily.

pxeger

ok, I've got numpy sympy pandas pillow, what else?

emanresu A

One moment, I have to (ugh) write SQL

PyGamer0

@pxeger tensorflow :p

pxeger

eehhhhh....

PyGamer0

> NumPy. NumPy is mainly used for its support for N-dimensional arrays

wrong, numpy is used as it is an Iverson ghost :P

pxeger

08:16

I don't particularly fancy the CPU usage

Anush

sympy is really basic. sage math is a little better

pxeger

sagemath doesn't work very well as a Python package, it's installed separately

Anush

That is sadly true

sympy just needs coding volunteers

emanresu A

Does SQL support regex?

Anush

Very few people code for it

emanresu A

08:19

Or, how do you do an or clause in SQL?

pxeger

select xxx from yyy where zzz union select xxx from yyy where aaa?

Bubbler

@Anush Here it is

Time to leave btw

lyxal

@PyGamer0 lol imagine using numpy. Made by Sympy gang

Bubbler

@Anush And please don't ask me more about anything similar to those problems. I have to live life

emanresu A

@lyxal Can I have a copy of the corpus code? I lost my copy by accident while cleaning up my filesystem.

Anush

08:26

:) but I am hugely grateful!

You coded rank but I better not mention that

pxeger

numpy, sympy, scipy, pil, imageio, dateutil, xkcd, requests, opencv, selenium, passgen, flask-env, gmpy2, drawille, inflect, Pylab, matplotlib, flask

Anush

@Bubbler thank you

PyGamer0

@lyxal imagine using numpy or sympy, made by ....err.....

pxeger

I want to limit disk usage a bit, so I'll go with numpy sympy scipy pillow

Anush

@pxeger what is this list?

PyGamer0

08:29

@Anush modules for python in ATO

Anush

aro?

ATO?

emanresu A

@pxeger Why would you want flask, selenium, or opencv on an online interpreter service???

lyxal

@emanresuA I won't be at my computer for a few hours, so I'll give it to you then

emanresu A

Ok.

Razetime

08:55

@lyxal for performing funni thing on codegolf

emanresu A

09:14

ø⁄

4

A: Find vowels count in each given country names using Java6 and Java8

Welcome to Stack Review, the first thing I see in the code is the following: List<String> VOWELS = Arrays.asList("a", "e", "i", "o", "u"); This is correct, but from the uppercase VOWELS name you chose for the variable it seems me you meant this as a constant, so you could declare it : private st...

> Welcome to Stack Review

Yes, that's definitely a site that definitely exists.

Actually ø⁄ now

Adám

ø?

emanresu A

ø⁄ = dab

ø⁄

PyGamer0

09:38

ō

Adám

OK, let's not let this get to our heads or get out of hand.

2

Sandbox Posts

10:34

0

A: Sandbox for Proposed Challenges

From my CMC. Given a regex and a text, return one bit per character in the text, indicating the positions of beginnings of non-overlapping matches, and also the positions of beginnings of sequences that are not part of any non-overlapping matches. You can: take the regex as a regex object, strin...

New Posts

11:07

0

Q: Digit small numbers

A digit small number is a positive integer \$n\$ such for any two numbers that multiply to \$n\$, their total number of digits is more than the digits in \$n\$. In otherwords: there are no two positive integers \$a\$ and \$b\$ such that: \$ ab = n \$ and \$ \left\lceil\log_{10}(a)\right\rceil+\le...

code-golf math decision-problem

PyGamer0

very weird 4func calculator

Sandbox Posts

11:34

0

A: Sandbox for Proposed Challenges

Open or close? Every phone needs a calculator app. Because of the limited screen real estate, the developer of mine has decided to save some buttons. Instead of having two dedicated bracket buttons - one for open ( and one for close ) - there is just a single bracket button (). It looks something...

New Posts

11:44

0

Q: Convert codepoint to UTF-9

UTF-9 was an April Fool's Day RFC joke specifications for encoding Unicode suitable for 9-bit nonet platforms. Challenge Your task is to implement a program or a function or a subroutine that takes one integer, who represents the codepoint of a character, to return a sequence of integers that rep...

code-golf unicode

Fmbalbuena

12:07

@cairdcoinheringaahing Ok i'll wait

pxeger

@emanresuA precisely

Redwolf Programs

14:30

All of infosec.se:
"Hey, can I not use HTTPS? I have some other security thing set up anyway."
"No. You are an idiot. Just use HTTPS."

Also, morning!

PyGamer0

15:00

@RedwolfPrograms night!

Fmbalbuena

@cairdcoinheringaahing I edited a bit of test cases, can you fix my sandbox post?

PyGamer0

15:12

CMC: Given a number as a input, output its digits as subscripts and superscripts alternatively. Ex: 234 -> ²₃⁴

Adám

15:22

@PyGamer0 Can we assume at least 2 digits?

Neil

@PyGamer0 Retina 0.8.2, 37 bytes

PyGamer0

@Adám yes

Adám

@PyGamer0 Extended Dyalog APL: {⍵⍎¨⍛⊇⍳'₉'}@(∊∘⎕D){⍵⍎¨⍛⊇'⁰¹²³',4↓⍳'⁹'}@(~2|⍳⍤≢) Try it online!

PyGamer0

@Neil why is ¹ i?

Adám

That's a mistake because 123 are not in the expected locations in UCS.

Neil

15:25

@PyGamer0 sorry I didn't have my glasses on and misread it as a superscript 1

@PyGamer0 Retina 0.8.2, 40 bytes

Adám

@PyGamer0 I presume we can take a list of digits?

PyGamer0

@Adám yes

@Neil this is fun

CMP: Do you like symmetry?

Adám

@PyGamer0 Extended Dyalog APL: {⍵⊇'⁰¹²³⁴'…'⁹'}@{⍵∊⍳10}{⍵⊇⍳'₉'}@{2|⍳≢⍵} Try it online!

@PyGamer0 Yes, and I suspect that is an objective answer.

PyGamer0

@Adám yes

pxeger

16:28

codegolf.meta.stackexchange.com/posts/24003/revisions

lol I'm stupid

Redwolf Programs

16:42

@PyGamer0 Only if it likes me back

5

Fmbalbuena

@RedwolfPrograms Hey

Can you fix my sandbox post?

Redwolf Programs

The BF explainer thing?

Fmbalbuena

(This)

@RedwolfPrograms Yeah

Redwolf Programs

What's wrong with it?

Fmbalbuena

Read all please.

Redwolf Programs

16:53

I did

Is there any part of it you want feedback on specifically?

Fmbalbuena

read the second testcase and i didn't add the rule.

(Or better last edit)

Redwolf Programs

So the new rule is that all no-ops should be grouped together?

Fmbalbuena

yes

I changed my mind because is ugly.

Redwolf Programs

Do you want me to edit that in?

Fmbalbuena

yeah

Redwolf Programs

16:59

Done

Fmbalbuena

@RedwolfPrograms Thanks, but I need to wait 3 days (2 days remaining)

@RedwolfPrograms I edited a bit.

Redwolf Programs

Well I just spent way too long solving the world's ugliest equation and then remembered it was in a calculator-allowed section of the assignment >:|

Fmbalbuena

CMC: Do this sandbox post

Aaroneous Miller

@Fmbalbuena it turns out my rough estimate of 1000 bytes was a bit off.

Fmbalbuena

@AaroneousMiller Whitespace interpreter?

Aaroneous Miller

17:13

It's done, and it's over 2300 bytes.

that was fun :p

Redwolf Programs

Nice!

Fmbalbuena

@AaroneousMiller And chaotic

Redwolf Programs

And, TIO's blocked again :(

Aaroneous Miller

*Sad Redwolf noises*

Fmbalbuena

@RedwolfPrograms What happened?

Redwolf Programs

17:14

I guess it was unblocked by mistake

It never fully worked, you still couldn't run code, only view it

Fmbalbuena

I't worked for me.

bad internet?

@AaroneousMiller Don't post because empty program does infinite loop.

Aaroneous Miller

@Fmbalbuena With the exception of the arithmetic commands, the challenge guarantees a valid program as input, and the empty program isn't a valid program, so I'd say that's acceptable.

Fmbalbuena

@AaroneousMiller Sorry

Aaroneous Miller

np

Fmbalbuena

@RedwolfPrograms I have an idea for golfing language.

Redwolf Programs

17:24

Cool!

Making a golfing languages is fun

Fmbalbuena

But only specific challenges.

Redwolf Programs

That's fine, we have golfing languages like Canvas that are specific to certain challenge types

(I would say Charcoal except Neil exists)

Fmbalbuena

this was unbulit.

Called "Sequencel"

Redwolf Programs

Ooh, so it's meant for sequence challenges?

Fmbalbuena

yes

Redwolf Programs

17:28

That's a neat niche for a language, there's lots of cool functions that are really useful for sequence challenges

Unrelated String

and patterns of data flow

Redwolf Programs

Like heavy usage of infinite generators

Fmbalbuena

empty code will do the counter.

Aaroneous Miller

17:52

0

A: Write a Whitespace Interpreter

Vim, 2366 bytes :let@z='' :%s/\S//eg :%s/ /S/& :%s/ /T/& :%s/\n/N/& $xo"Zyl:if"<C-v><C-r>z"=="SS"||"<C-v><C-r>z"=="STS"||"<C-v><C-r>z"=="STN"||"<C-v><C-r>z"=="NST"||"<C-v><C-r>z"=="NSN"||"<C-v><C-r>z"=="NTS"||"<C-v><C-r>z"=="NTT"<C-v> norm fN<C-v> let@z=''<C-v> elsei"<C-v><C-r>z"=="SNS"||"<C-v><...

hyper-neutrino

why would you do this to yourself :p

Aaroneous Miller

¯\_(ツ)_/¯ why not?

:P

Also I guess I have a new longest hand-written answer lol

Fmbalbuena

@AaroneousMiller Thicc vim answer

Aaroneous Miller

wow such thicc
many unprintable

Fmbalbuena

@AaroneousMiller i can't program Vim

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