The Nineteenth Byte

Poke

19:00

idk what most things use anymore

probably otf

mınxomaτ

That's the whole point. Google font CSS only returns the format that your browser understands. WOFF2 for most, WOFF or even SVG for others...

Ex: fonts.googleapis.com/…

So it doesn't load the format it doesn't need, to save bandwidth

Poke

interesting

orlp

@Mr.Xcoder I don't think you should go around asking people for try it online links

either add them yourself or don't bother

Poke

i guess woff2 is used because of the compression

Mr. Xcoder

@orlp Ok :)

mınxomaτ

19:02

@Poke afaik Safari has some problems with that. It'll probably use WOFF, not v2

Poke

the internet is exciting

sergiol

halo

do sandbox answer posts fall here in the chat?

Poke

@mınxomaτ i haven't looked into woff before but i guess it's the same as otf with compression and whatever else to be optimized for the web?

mınxomaτ

I don't know.

orlp

@LeakyNun youtube.com/watch?v=hcRZadc5KpI

now I know where you got the problem :)

Leaky Nun

19:06

@orlp which?

Mr. Xcoder

@LeakyNun you can't :P ಠ________ಠ

Leaky Nun

@Mr.Xcoder :P

HyperNeutrino

Is there a challenge for n -> number of strings of fully matched brackets of length n

Leaky Nun

@HyperNeutrino Catalan?

orlp

@LeakyNun the one regarding equivalence classes formed by checking if the difference between two numbers is rational

@HyperNeutrino yes

HyperNeutrino

19:08

aw ok

Leaky Nun

@orlp oh, that's from mathologer's death by infinity

HyperNeutrino

thanks

AdmBorkBork

@sergiol There is a feed that will automatically link new Sandbox posts to chat.

orlp

@LeakyNun ah, I guess multiple math channels covered it then :)

HyperNeutrino

wait that's just catalan numbers?

whaaaaa

Leaky Nun

19:09

@orlp sure

Mr. Xcoder

> Number of ways to insert n pairs of parentheses in a word of n+1 letters. (OEIS)

sergiol

@AdmBorkBork ok I am still waiting for my post to fall here
thks

Mr. Xcoder

@sergiol It updates every once in a while. Not sure, but I think ~20-30 minutes

sergiol

fixed font test
abcdefghihjklmnopq

@AdmBorkBork: Rammstein's post
LOL XD

HyperNeutrino

@Mr.Xcoder yup :P

sergiol

19:17

As I am tired of waiting the post falls, so I past the link

0

A: Sandbox for Proposed Challenges

Shift-left golfer Sometimes when doing code-golf, a person needs to understand which format is shorter: 2147483648 0x80000000 1<<31 The task: You will receive a number in one of the three formats above: decimal, hexadecimal, or shift-left operation. If there is no advantage in converting i...

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Shift-left golfer Sometimes when doing code-golf, a person needs to understand which format is shorter: 2147483648 0x80000000 1<<31 The task: You will receive a number in one of the three formats above: decimal, hexadecimal, or shift-left operation. If there is no advantage in converting i...

caird coinheringaahing

@sergiol Don't, just be patient.

AdmBorkBork

Excellent timing.

Mr. Xcoder

@sergiol Hehe ^^^

caird coinheringaahing

Brilliant timing

sergiol

19:18

If I wanted to done it intentionally, I wouldn't!

Mr. Xcoder

@sergiol Honestly, I think it is extremely unclear. Please add some test cases and make the specs stricter.

caird coinheringaahing

@sergiol I think we've had a question which is "Which is shorter, decimal, hex or e-notation?" which I think I'd vtc as dupe of.

sergiol

my question is: how can I improve the question, please?

Mr. Xcoder

@sergiol What is the task again? I cannot understand it at all.

HyperNeutrino

7

Q: Compute the shortest decimal representation of a IEEE 754 double-precision binary floating-point number

Format The format is a 64 bit value x representing a IEEE-754 double-precision binary floating-point number (a.k.a "a double"). x is assumed to represent a real number (not a NaN or Infinity). Goal The goal is to print/output the shortest string containing a decimal representation for which x ...

Mr. Xcoder

19:21

@sergiol Add some test cases.

dzaima

@sergiol define the notation types

HyperNeutrino

Yeah I'd use regex to specify the three formats if I were you

sergiol

I am the asker an I feel the unclearliness, so the answerers will have even more.

should I accept octal too?

Mr. Xcoder

CMC: Given the deltas of a list, reconstruct it (undelta it - [2, 1, -2, -1] -> [0, 2, 3, 1, 0]) and get the sum of its elements. [2, 1, -2, -1] -> 6

HyperNeutrino

05AB1E: .¥O

Mr. Xcoder

19:23

Exactly.

HyperNeutrino

I think this is the solution you were looking for; I have a feeling it's that since [2, 1, -2, -1] is the list in the 05AB1E answer on the Sort a Delta List challenge :P

sergiol

@dzaima notation types are already defined

HyperNeutrino

Jelly: 0;+\S

Mr. Xcoder

@HyperNeutrino I am trying to see answers in other languages as well.

Leaky Nun

@HyperNeutrino 0; is unnecessary

HyperNeutrino

19:24

@sergiol Not quite; what case does hexadecimal take? Does it accept a non-zero integer before the x? Does left-shift have spacing around the operator?

@LeakyNun oh thanks

Jelly: +\S

caird coinheringaahing

@HyperNeutrino Polyglot with Deorst :P

HyperNeutrino

:P

H.PWiz

Husk: Σ∫

Mr. Xcoder

Pyth, 5 bytes: ssM._

Leaky Nun

@Mr.Xcoder remove the M :)

Mr. Xcoder

19:26

@LeakyNun :c

Leaky Nun

addition is associative

@Mr.Xcoder where is your pyth answer to my question?

caird coinheringaahing

@LeakyNun What's associative? Maths has too many words to remember :P

Leaky Nun

@cairdcoinheringaahing (a+b)+c = a+(b+c)

HyperNeutrino

@cairdcoinheringaahing (a+b)+c = a+(b+c)

ninja'd

Mr. Xcoder

@cairdcoinheringaahing a+b+c=(a+b)+c=a+(b+c)

O ninja'd

Leaky Nun

19:27

@HyperNeutrino you remember your group theory well

AdmBorkBork

@Mr.Xcoder PowerShell, 39 bytes -- ($args[0]|%{+$l;$l+=$_})+$l-join'+'|iex

Mr. Xcoder

@LeakyNun Into oblivion. Maybe I'll give it a go

@AdmBorkBork :O

HyperNeutrino

@LeakyNun well I did learn this in grade 4 but yes :P

Leaky Nun

@HyperNeutrino have you solved the problem?

Mr. Xcoder

I learned that in grade 1 >____>

HyperNeutrino

19:28

I think I might be close but since I have the hackathon really soon I've temporarily stopped working on it for just the weekend. I'll pick up where i left off Sunday afternoon though

AdmBorkBork

@Mr.Xcoder What's so ":O" about that?

HyperNeutrino

@Mr.Xcoder I mean in school; in reality, I've known that since like grade 1 or so from a math book in my bedroom :P

caird coinheringaahing

@AdmBorkBork feature-request Powershell-based golfing language, written in Powershell (duh)

Mr. Xcoder

@AdmBorkBork The fact that Powershell does that in 39 bytes!

AdmBorkBork

@cairdcoinheringaahing I'm working on Pish-Posh (still in early design stage)

@Mr.Xcoder Why, how long is Python? I'd expect a low 30s or so.

caird coinheringaahing

19:30

Oh, that reminds me, I have to update the Deorst chatroom with its development. Brb.

DJMcMayhem

@AdmBorkBork I'd guess longer actually

idk

Mr. Xcoder

@AdmBorkBork I can't be bothered to solve it right now :P

@AdmBorkBork Actually, 46 bytes

caird coinheringaahing

@Mr.Xcoder That's Python, not Actually.

Mr. Xcoder

@cairdcoinheringaahing pun not intended

caird coinheringaahing

@Mr.Xcoder Puns should always be intended :P

Mr. Xcoder

19:33

@cairdcoinheringaahing I don't think the puns should always actually be intended (pun intended) (pun intended)

caird coinheringaahing

@Mr.Xcoder I'm just confused now :P

Mr. Xcoder

@AdmBorkBork Actually, 42 bytes

:o this is longer: lambda x:sum(__import__('numpy').cumsum(x))

caird coinheringaahing

@Mr.Xcoder As a teenager, I have to laugh at that :P

Mr. Xcoder

@cairdcoinheringaahing I'm just confused now

HyperNeutrino

@cairdcoinheringaahing huh?

caird coinheringaahing

19:36

@Mr.Xcoder Good, 'cause this conversation shouldn't continue

Mr. Xcoder

CMC: Create a good CMC, for god's sake!

sergiol

better now codegolf.meta.stackexchange.com/a/13926/29325 ?

DJMcMayhem

@Mr.Xcoder The irony that you just failed your own CMC

caird coinheringaahing

CMC: Recreate the behavior of ŒD from Jelly.

Mr. Xcoder

@DJMcMayhem I have posted a ton of CMCs today, I just think I should stop.

HyperNeutrino

19:41

@Mr.Xcoder VTC as unclear

@cairdcoinheringaahing Jelly: ŒD

Mr. Xcoder

@HyperNeutrino Then I'll VTC you as off-topic!

</joke>

:P

HyperNeutrino

wth how does that even make sense :P :P :P

caird coinheringaahing

@Mr.Xcoder I agree, neutrinos aren't coding problems :P

Mr. Xcoder

it doesn't :P:P:P

AdmBorkBork

CMC: Given an input n, output the absolute value of the difference between the nth Triangular Number and the nth Perfect Square.

sergiol

19:43

set m [== CMC {chat message conversation}]

Mr. Xcoder

@AdmBorkBork Well done! You solved my CMC

sergiol

is m true?

Mr. Xcoder

@sergiol CMC=chat mini challenge

@sergiol no :P

sergiol

ok tks @Mr.Xcoder

Leaky Nun

@AdmBorkBork @_@

sergiol

19:44

is my challenge clearer now?

HyperNeutrino

@AdmBorkBork Jelly: RSạ²

Leaky Nun

@AdmBorkBork Python, 17 bytes: lambda n:n*~-n//2

caird coinheringaahing

@AdmBorkBork 2Deorstv, 4 bytes: ΣàsÁ

Yay! Tied Jelly :P

Leaky Nun

@AdmBorkBork Jelly, 3 bytes: ’×H

HyperNeutrino

o

Mr. Xcoder

19:46

@cairdcoinheringaahing Not quite

AdmBorkBork

@LeakyNun Interesting that there's a closed-form solution like that.

DJMcMayhem

@AdmBorkBork That's actually pretty short in brain-flak

HyperNeutrino

riiiiight

factoring :P

Leaky Nun

@AdmBorkBork n^2 - n(n+1)/2 has a closed form isn't interesting

caird coinheringaahing

@LeakyNun In that case, 2Deorstv, 3 bytes: (×H

AdmBorkBork

19:47

Oh right, duh. I are smart.

Leaky Nun

@AdmBorkBork Jelly, 2 bytes: ḶS

the previous triangle number.

HyperNeutrino

wait really?

Leaky Nun

relevant discovery: consecutive triangle numbers add up to form a perfect square

HyperNeutrino

that's interesting

DJMcMayhem

@AdmBorkBork Brain-flak: 12 bytes: ({({}[()])}{})

HyperNeutrino

19:48

@LeakyNun :o that is quite interesting

caird coinheringaahing

@DJMcMayhem :O Brainflak beats Python!?!?

DJMcMayhem

It's actually shorter to compute t(n-1) then it is to compute t(n) or n^2

Leaky Nun

AAAAA
AAAAB
AAABB
AABBB
ABBBB

5th triangle + 4th triangle = 5th square :P

DJMcMayhem

@cairdcoinheringaahing When it's the type of challenge that brain-flak is ridiculously good at

caird coinheringaahing

Yep, that doesn't make sense

DJMcMayhem

19:49

> When it's the type of challenge that brain-flak is ridiculously good (for Brain-Flak) at?

AdmBorkBork

@LeakyNun You mean next? Not previous?

DJMcMayhem

Uhhh

Leaky Nun

@AdmBorkBork previous.

HyperNeutrino

@DJMcMayhem I had ({({}[()])}{}) too :P and also that's 14 bytes not 12

Leaky Nun

5th square - 5th triangle = 4th triangle

DJMcMayhem

19:50

Ahh, yeah

AdmBorkBork

@LeakyNun Oh I see what you mean.

DJMcMayhem

Still beats python :)

HyperNeutrino

yup :P

mınxomaτ

Something spooky just happened: Someone send me a mail telling me that my wasm build server is down (which runs on clang). So I told my Google assistant to "remind me tomorrow afternoon to refresh the software" (I said, and it understood "software"). It then proceeded to create a reminder saying "update clang".

HyperNeutrino

well first of all lambda x: is already 9 bytes, so...

Leaky Nun

19:51

@mınxomaτ :O

skynet is taking over

HyperNeutrino

:o creepy

Mr. Xcoder

n^2 - n(n+1)/2 = n^2 - (n(n+1)/2) = n^2-(n^2+n)/2= n^2-n^2/2-n/2=n^2/2-n/2... Is my logic flawed?

Leaky Nun

@Mr.Xcoder it isnt

DJMcMayhem

CMC: Find a PPCG challenge where brain-flak is shorter than python

Mr. Xcoder

yay

caird coinheringaahing

19:52

@DJMcMayhem Main or CMC? Cause I've found a CMC :D

HyperNeutrino

. codegolf.stackexchange.com/questions/84260/add-two-numbers

dzaima

umm

DJMcMayhem

Main

HyperNeutrino

Wait nvm

because of Python's sum

caird coinheringaahing

@HyperNeutrino Python has 3 bytes

ninja'd

HyperNeutrino

19:53

. codegolf.stackexchange.com/questions/106182/…

Mr. Xcoder

Please VTD!

sergiol

CMC: find a no [graphical-output] where there is not a golfing-language answer

HyperNeutrino

Actually I'm not sure about that

DJMcMayhem

@HyperNeutrino Brain-Flak is 54... Python is 11

caird coinheringaahing

@Mr.Xcoder VTD what?

HyperNeutrino

19:54

yeah I also realized that Brain-Flak actually isn't that good...

1 min ago, by dzaima

umm

DJMcMayhem

It's already deleted

Mr. Xcoder

Ok then

caird coinheringaahing

Also, I can't VTD, so I don't know why I asked :P

Laikoni

4

A: Convert pointfree to pointful

Haskell, 163 142 133 bytes p(x:r)|[a,b]<-p r=case[x]of"("->["(\\x->"++a++p b!!0,""];"."->['(':a++")",b];")"->[" x)",r];_->[x:a,b] p r=[r,r] f s=p('(':s++")")!!0 Try it on Ideone. Ungolfed: p('(':r)|(a,b)<-p r = ("(\\x->"++a++(fst(p b)),"") p('.':r)|(a,b)<-p r = ('(':a++")", b)...

caird coinheringaahing

@sergiol How about this?

Mr. Xcoder

19:55

@LeakyNun Damn you beat me... By 1 byte: lambda n:n*n/2-n/2

caird coinheringaahing

Guaranteed never to get a golfing language answer.

DJMcMayhem

This one almost works, but then Xnor had a freakishly well golfed answer...

HyperNeutrino

lol

Mr. Xcoder

16 bytes: lambda n:n*~-n/2

wait, that's Leaky's solution in Python 2....

sergiol

challenge passed!

caird coinheringaahing

19:59

@sergiol What challenge? Your CMC?

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