The Nineteenth Byte

orlp

11:00

@feersum I'm 100% certain that this will always converge on the correct value if you start of with a really big radius (e.g. the sum of all segments)

only thing I'm not certain of is if it has other roots at wrong values for small radii

so I'm not certain if my binary search is broken :(

Xanderhall

11:15

Morning

zyabin101

@Xanderhall o/

Xanderhall

@zyabin101 owo

zyabin101

@Xanderhall ^w^

@Askirkela o/

Askirkela

Hello, golfers o/

orlp

@Askirkela eww wtf man

hands above the table

Askirkela

11:20

Like this? (╯°□°）╯︵ ┻━┻

Xanderhall

Correct

Askirkela

Let's put that poor table back on feet (ヘ･_･)ヘ┳━┳

Katenkyo

@Askirkela NEVER! (╯°□°）╯︵ ┻━┻

Askirkela

@Katenkyo ಠ_ಠ

Sherlock9

11:50

1

A: Josephus problem with three inputs

Haskell, 48 47 43 bytes (n!k)q=1+foldl(mod.(k+))(mod(k-1)q)[q+1..n] Based on a Haskell algorithm on the Rosetta Code page of the Josephus function with two inputs. Golfing suggestions are welcome. Edit: My thanks to nimi for help with golfing via suggesting a pointfree version. (n?k)q=1+n*...

Got any golfing tips for either algorithm in this Haskell answer?

Mars Ultor

@QPaysTaxes I don't know Scala, but you should mention that traits that extend classes merely force anything using the trait to eqtend that class as well

@QPaysTaxes Dog has to extend Spaceship

Xanderhall

12:10

@Sherlock9 Morning

Nathan Merrill

@QPaysTaxes a concept is basically just an interface :)

feersum

You must mean C++1z ... x was solved for and has the value of B.

Sherlock9

@Xanderhall Evening

feersum

If it's not in C++11 then how is it C++11?

Nathan Merrill

@QPaysTaxes many languages make it so that interfaces don't have to be declared (like Go)

mınxomaτ

12:20

> I accidentally a word

2

Timwi

Woo hoo, got the Necromancer badge overnight (for codegolf.stackexchange.com/a/78086/668) — I didn’t realize the challenge was that old

Mars Ultor

12:39

D:

Why use C++?

@QPaysTaxes How hard is it to use C++ to create an interpreted language?

Also, is it dynamic?

@QPaysTaxes Exactly.

If it's dynamic, your biggest issue may be memory allocation for types

feersum

This sounds unpleasant. Is it supposed to be fun?

Mars Ultor

@QPaysTaxes Yes, but it's developed my a multi-person team.

And it took a very long time.

Basically, memory allocation is a big problem

You're better off using JS/Java/.NET/Python

*PyPy

feersum

It's correct that you can't use templates for types that are unknown at compile time.

Mars Ultor

If you want it to be fast and easy to write, use PyPy as your backend

@QPaysTaxes Java isn't completely dynamic though. It will certainly be easier to implement a dynamic language than C++ as it runs in a VM already.

Cheddar uses JS and Pytek uses Python, and .NET has good dynamic language support as well

oracle.com/au/products/database/o30java-099612.html

Because Ruby is super dynamic or something

@QPaysTaxes I should start doing stuff in Ruby, just I'm not sure what to do

@QPaysTaxes Why not use Ruby then?

@Everyone halp what do i do in ruby

@QPaysTaxes wat

@QPaysTaxes Also, don't you need to get to class?

@QPaysTaxes Oh, a server?

@QPaysTaxes docs.SE?

Sherlock9

13:00

Say I have an infinite list, and I want to take the nth item of the list, then if it fits a condition, return it, else n=(nth item) and take that nth item from the list and repeat

Is there a function like reduce or something that can do that? I'm having trouble formulating the idea to ask SE

Haskell

Alright, I'll try it, I don't expect it to be very golfy though

Ah, that's okay. Half of this is just messing around with Haskell to learn it, anyway

Thanks Q

Mars Ultor

@QPaysTaxes Is rails really the best idea?

@QPaysTaxes Using GH pages for that would be a lot easier IMO

@QPaysTaxes Otherwise waiting for docs.codegolf.stackexchange.com

@QPaysTaxes But I don't do stuff unless I have motivation, and TIO already handles interpreting.

zyabin101

13:18

@quartata I'M SO MUCH SORRY ಥ_ಥ

I finally merged your UGL pull request

Nathan Merrill

Syntax for elegance, take 1

zyabin101

@NathanMerrill Is it just for elegance? Or is it a new lang?

Mars Ultor

@NathanMerrill I think you should have assertion Positive(Int i) { i > 0 } then Int{Positive}

Or Positive:Int

also, your adaptations are the wrong way around IMO

@QPaysTaxes Yeah, but I never manage to learn anything when I'm not serious

Nathan Merrill

@MarsUltor no, because the right side needs to use stuff from the left side

a(param) -> b(param.a, param.b)

Mars Ultor

@NathanMerrill I mean the declatations

orlp

13:30

testtubegames.com/velocityraptor.html

Mars Ultor

put(item, count) -> addItem(item, quantity=count) <- why quantity=count?

Nathan Merrill

@MarsUltor Positive is actually declared with Integer (or can be declared elsewhere). I'll include it next time

@MarsUltor because if I didn't include the count, it would choose the default option, which is 1

the quantity= is required because its an option

Mars Ultor

@NathanMerrill Why not just count?

oh

Nathan Merrill

options are unordered

Mars Ultor

The thing is, if Rails is sufficiently different to Ruby, I'm probably better off learning Ruby directly anyway

@QPaysTaxes Yeah, but that's like node vs JS

or, say Qt/GTK to C++

Nathan Merrill

13:33

@QPaysTaxes whitespace will either be required or disallowed.

I haven't decided which yet

Mars Ultor

@NathanMerrill D:

@NathanMerrill Required

You really don't want an operator chain mess

Nathan Merrill

@MarsUltor oh, no whitespace would simply be for parameters

similar to how python PEP 8 defines

Mars Ultor

@NathanMerrill ?

Nathan Merrill

func(a=4 + 1)

Nathan Merrill

14:16

take 2

Kenny Lau

@NathanMerrill which language is it in?

Nathan Merrill

Elegance

Easterly Irk

monking

i have state testing today. i hate state testing. i hate life.

Geobits

If my nine-year-old can handle it, I'm fairly certain you can. Quit complaining :P

Kenny Lau

14:32

Should we add the Ackermann function into the catalogue?

18

Q: The Ackermann function

The Ackermann function is notable for being the one of the simplest examples of a total, computable function that isn't primitive recursive. We will use the definition of A(m,n) taking in two nonnegative integers where A(0,n) = n+1 A(m,0) = A(m-1,1) A(m,n) = A(m-1,A(m,n-1)) You may implement ...

Nathan Merrill

no. Catalogue really doesn't mean anything

Kenny Lau

well, i would need the non-competing tag for every answer then

Nathan Merrill

that's fine

A Nerd - I

14:50

llocal

Mars Ultor

@Sherlock9 Unsigned?

@Sherlock9 nvm

New Main Posts

0

Q: Make a better score than my students!

For the last day of the semester, I decided to have some fun with my students and I showed them Code Golf... poor guys, they're addicted now. The goal was to compete against the other students to solve those problems with what would be very usual rules for you. They had to use C# (because it's t...

code-golf c# multiple-holes

Mars Ultor

@Sherlock9 You left out the definition for Negative

Downgoat

\o/ SSS works!

Mars Ultor

@Downgoat :D

zyabin101

14:55

@Downgoat \o/ Link?

Downgoat

@zyabin101 Downgoat's solar system simulator

Sherlock9

@MarsUltor Which message are you replying to?

Downgoat

Now I need to add moons, collisions and some other stuff...

Mars Ultor

@Sherlock9 plus, you have Int.get() = 0 (equality) and items[item] = quantity (assignment) using =

@Sherlock9 take 2

@Downgoat BTW, operators done :D Now just scopes left until I catch up

Nathan Merrill

@MarsUltor are you talking to me?

Downgoat

14:57

\o/

Mars Ultor

plus catching argument parsing bugs

Downgoat

@MarsUltor they are argument parsing bugs??

Mars Ultor

@NathanMerrill wait what whoops

@Downgoat for me, yes

Last time I checked, Cheddar still had them too

Nathan Merrill

@MarsUltor you're right, I need to figure out if I want to do assignment differently or equality differently

Mars Ultor

@NathanMerrill either equal is == or assignment is := probably?

Sherlock9

14:58

@MarsUltor Sorry, I may just be tired, but I presume you're talking about my Haskell posts?

Nathan Merrill

right, that's the standard

Mars Ultor

@Sherlock9 Sorry, wrong person

Sherlock9

Oh, alright

That was confusing

Mars Ultor

@NathanMerrill Maybe quantity -> items[item]

@Downgoat wat you messed up Expression grammars

Downgoat

@MarsUltor no, I fixed them

Mars Ultor

15:02

@Downgoat the c9 one looks kinda broken?

Downgoat

@MarsUltor what makes you say that?

Mars Ultor

or maybe just overly complicated

Downgoat

oh, I had to make it like that because the previous one was broken

I wrote a comment explaining the changes I think

Helka Homba

@AlexA. You can now get sandals for your avocados btw

Downgoat

@HelkaHomba wat.

Helka Homba

15:07

@MartinBüttner No one complained about my Cramming The Gramming (re codegolf.stackexchange.com/questions/78109/…)

Martin Büttner

I think I forgot to go back through existing challenges and close them after the consensus was reached.

Helka Homba

:(

Martin Büttner

I did complain about it in the meta post. ;)

> I'd also put Calvin's Hobbies' Cramming The Gramming - Twelve Task Tweet in this category since the optimal solution is still to golf each subtasks individually and then simply count how many of them fit into the byte limit 140.

Sp3000

Would the new question be on topic if it were rewritten as a tips?

Martin Büttner

even then, one question per question please

10

@HelkaHomba you didn't by any chance downvote the meta post without even reading it, did you? ;)

anyway, to the reopen voter on the new challenge, please make a competing answer to the meta post, instead of just voting against community consensus

Helka Homba

15:12

I read some :P

It's just too bad for Oltarus. How was he supposed to know - read every single meta post?

Martin Büttner

of course not

Helka Homba

we need like a [close-reason] tag on meta

Martin Büttner

but not knowing that a certain type of content is deemed off-topic doesn't make it on-topic

@HelkaHomba that exists, but I think it's specifically for the fixed close reason slots

meta.codegolf.stackexchange.com/questions/tagged/close-reasons

Helka Homba

Well a [challenge-writer-warning] tag then. We always link people to the sandbox and forbidden loopholes but not everyone will use or benefit from the sandbox and loopholes are just for answers. A list of meta questions for new challenge writers to bear in mind would be handy

FryAmTheEggman

I think that's what the faq should theoretically be?

Martin Büttner

15:26

yeah we could definitely make more use of the FAQ

Xanderhall

16:00

Welp, work got shut down

sweet

FryAmTheEggman

@QPaysTaxes Calvin never left

Helka Homba

@QPaysTaxes Who?

0

A: Should multi-part challenges be allowed?

Multi-part challenges aren't ideal, but shouldn't be forbidden To be fair, "multi-part" is a relative term. A challenge that asks for one program that takes the square root of the cosine of a number is not all that different from a multi-part challenge that asks for one program that takes the co...

(@MartinBüttner double poke ^)

FryAmTheEggman

@QPaysTaxes Being confusing is more fun :)

Xanderhall

@QPaysTaxes Not so nice, because the bus routes are stopping due to weather. I get the bus home.

FryAmTheEggman

16:18

Oh yeah, I was thinking of posting meta.codegolf.stackexchange.com/a/8967/31625

Any last thoughts before I do?

Morgan Thrapp

Looks good to me.

cat

Could someone tell me; was my edit here comprehensive enough for this to be reopened? (also, please let me know of any loopholes or things I forgot!) codegolf.stackexchange.com/questions/22/…

@QPaysTaxes :P

seriously though

k

@QPaysTaxes That's no moon!

-0 overall change

must... not... allow... it... to... disappear

It went away, are you happy? :P

Martin Büttner

anyone who doesn't have a plan for the next 2 hours yet? 101 Hack April starts in 2 minutes: hackerrank.com/101hack36 (maybe I could have posted that earlier...)

poi830

its doorknobs post

about not abusing stars

Helka Homba

@QPaysTaxes you can see stars chat.stackexchange.com/rooms/info/240/the-nineteenth-byte/…

zyabin101

16:30

Nov 12 '15 at 22:26, by Doorknob

okay seriously stop abusing stars

3

cat

@zyabin101 NO

@QPaysTaxes Related.

@QPaysTaxes Also Related.

hey @Winny!

zyabin101

hides in barrel

cat

@zyabin101 BARRELS

@QPaysTaxes actually, they aren't

zyabin101

@QPaysTaxes You can help with Unipants' Golfing Language, a language I designed. Mars Ultor wrote an interpreter, and Kenny Lau golfed things in UGL. But doubt it'll count as writing a programming language.

cat

Guess what I'm doing today!

Doorknob

16:39

llama@llama:...code/rust/babble$ cr -e 'ONEXPSTENXPRBLKXPRPUTSUBENDWHL'; echo
     Running `target/debug/babble -e ONEXPSTENXPRBLKXPRPUTSUBENDWHL`
10987654321

while loops are implemented in babble!

New Main Posts

1

Q: Winnable Solitaire Mancala Boards

Mancala is the name of a family of board games that usually involve a series of cups filled with beads that the players manipulate. This challenge will use a specific rule set for a solitaire variant of the game. The board consists of a "basket" at one end, followed by an infinite number of cups...

code-golf game board-game

zyabin101

@Doorknob ONE XPS TEN XPR BLK XPR PUT SUB END WHL

What do XPS and XPR do?

flawr

@cat Looks cool, so what exactly are you doing?

quartata

17:07

@Doorknob Do you have a repo yet?

cat

17:24

@flawr Helping the other members of my team to compete with robot! (no competitions today) I'll take some pictures for you guys :D

flawr

strawpoll.me/10001095

cat

1 hour ago, by cat

Could someone tell me; was my edit here comprehensive enough for this to be reopened? (also, please let me know of any loopholes or things I forgot!) http://codegolf.stackexchange.com/questions/22/the-luhn-algorithm-for-verifying-‌credit-card-numbers-etc

El'endia Starman

@flawr I've not seen any of those but I voted for Bolt 'cause that's the one I'd pick. :P

cat

I picked all of them :P

flawr

I cant see any results =(

El'endia Starman

17:28

@flawr strawpoll.me/10001095/r ?

There's one vote for Bolt and one vote for Elysium.

Though it also says 3 votes total. o.O

mbomb007

@flawr I haven't seen Bolt, but I liked the other two.

Agawa001

@Downgoat what is the purpose of the mass if it doesnt generate a gravity ?

Morgan Thrapp

I recommend Elysium. I was very pleasantly surprised by it.

mbomb007

@MartinBüttner I created a Retina program to convert printable ASCII to their code points. It's long, though I did golf it a bit. I included newlines, but not tabs. Here's the Python script I used to generate it.

El'endia Starman

@Agawa001 He only checks planets against the sun, currently.

mbomb007

17:32

Hopefully a built-in will be added in the next revision, because this is ridiculous! :D

El'endia Starman

(At least, I'm pretty sure that's the case.)

New Main Posts

0

Q: Write a regex to match all the winners of the Academy Award for Best Picture but no unsuccessful nominees

All the films that have ever won the Academy Award for Best Picture: "wings", "the broadway melody", "all quiet on the western front", "cimarron", "grand hotel", "cavalcade", "it happened one night", "mutiny on the bounty", "the great ziegfeld", "the life of emile zola", "you can't take it with ...