The Nineteenth Byte

Alex A.

03:03

I can't find anything in the docs that suggests there's a way to get the number of edits.

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New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

The Meme in the Room popularity-contestascii-art Ugh. Memes. We've all encountered them. THE CHALLENGE Write a code that will return any meme you see here, accurately (recognizable to the audience, the voters). SCORING You don't have to rely on the voters solely to get you through. For ev...

Alex A.

@Calvin'sHobbies "Alex makes about the edits." <-- ?

I really want to know what you mean by that ^

VTCAKAVSMoACE

@NewSandboxedPosts This needs revision, but I'd like to get some advice on it.

Calvin's Hobbies

@AlexA. makes a giid point

or whatever

Alex A.

@Calvin'sHobbies Mind if I edit the comment to make that first sentence make sense?

It's really bothering me

Calvin's Hobbies

03:12

I did I think

Alex A.

You did

Thanks

:)

<3

Calvin's Hobbies

@CᴏɴᴏʀO'Bʀɪᴇɴ Not sure if there's anything you can do about the edits thing except not use the stat. Not a game breaker, just some may find it annoying.

Alex A.

I find it quite annoying. I have no idea how/where to get that number.

Calvin's Hobbies

Well you can get the top number on the revisions page, e.g. codegolf.stackexchange.com/posts/60569/revisions

Or I guess top num minus one

Alex A.

So call the API to get everything but edits, scrape the HTML to get edits? I don't think I'll answer this one. :/

Scraping HTML makes me crazy.

Justin

03:22

@Calvin'sHobbies You like to write challenges like this. Any suggestions?

PhiNotPi

I'm trying to translate something from jsfiddle into a single HTML document.

Alex A.

Use script tags

PhiNotPi

Do I basically take all of the JavaScript code and put it between <script> tags to make it work?

Because that hasn't worked.

Alex A.

I don't actually know.

Calvin's Hobbies

Yes. At the end if it tries to access html elements (else they won't have loaded)

PhiNotPi

03:30

I put it at the end... let me try and show you...

my jsfiddle: jsfiddle.net/y1mq1wfr

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Calvin'sHobbies Thanks for the suggestion. I think I'll keep it in to prevent this from becoming a standard challenge of retrieving data from the API.

PhiNotPi

my webpage: koth-phinotpi.rhcloud.com/imagetest.pl (view source)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@PhiNotPi
TypeError: HighchartsAdapter is undefined
 highstock.js:313:310
TypeError: HighchartsAdapter is undefined
 exporting.js:9:57
TypeError: $(...).highcharts is not a function
 imagetest.pl:21:1

PhiNotPi

How are you seeing those errors?

Calvin's Hobbies

@PhiNotPi I just copied the js into a script tag in another fiddle and it seems to work fine -> jsfiddle.net/xos238ue

Cᴏɴᴏʀ O'Bʀɪᴇɴ

03:34

@PhiNotPi I opened firefox's console.

PhiNotPi

@Calvin'sHobbies That's not working for me.

Calvin's Hobbies

Really? In chrome I get mixed http/https content warnings but it runs exactly the same nonetheless

But yeah, on the koth page I see the same errors as Conor

hmm

PhiNotPi

Uncaught TypeError: Cannot read property 'addEvent' of undefined
exporting.js:9 Uncaught TypeError: Cannot read property 'fireEvent' of undefined
imagetest.pl:21 Uncaught TypeError: $(...).highcharts is not a function

^ got this from Chrome

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Huh.

El'endia Starman

@PhiNotPi You have jQuery imported, right?

PhiNotPi

03:40

yes

Calvin's Hobbies

He does

El'endia Starman

Huh.

PhiNotPi

let me try something...

El'endia Starman

Ah, yes, of course. You'd get an error on $ otherwise.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Be glad you're not running this in ><>: Something smells fishy...

Alex A.

03:44

@CᴏɴᴏʀO'Bʀɪᴇɴ It takes 3 separate API calls to get a question owner's username, the question stats, and the number of comments. It also requires parsing the HTML on the revisions page to get the number of edits. :/

PhiNotPi

I tried changing http to https, and it had no effect on the website (it fixes CH's jsfiddle, though)

Calvin's Hobbies

It might be something to do with your koth page not liking http/https mixing (maybe not but otherwise idk)

PhiNotPi

I'll try changing them to http

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@AlexA. I don't know the API too well, but wouldn't looking for the max value of N in <span title="revision N">N</span>?

Alex A.

Yes

PhiNotPi

03:49

I don't really think that would have an effect though. Its not the website connecting over http/s. it's simply telling the browser to connect.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@AlexA. Okay. When I hear "parsing", I connote it with "labor". ;-;

New Main Posts

1

Q: Chunky palindromes

Palindromes are fun, but some of the other strings are starting to feel left out. We can turn those strings into chunky palindromes by splitting them up into palindromic arrays of chunks. For example, the string "abcabca" isn't a palindrome if we read it character by character, but we have three...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

chunkiness feature-request

PhiNotPi

Uncaught TypeError: Cannot read property 'addEvent' of undefined(anonymous function) @ highstock.js:313(anonymous function) @ highstock.js:315(anonymous function) @ highstock.js:420
exporting.js:9
Uncaught TypeError: Cannot read property 'fireEvent' of undefined(anonymous function) @ exporting.js:9(anonymous function) @ exporting.js:24
imagetest.pl:20
Uncaught TypeError: $(...).highcharts is not a functioncreateChart @ imagetest.pl:20(anonymous function) @ imagetest.pl:55n.Callbacks.j @ jquery.min.js:2n.Callbacks.k.fireWith @ jquery.min.js:2n.extend.ready @ jquery.min.js:2I @ jquery.min.js:2

Calvin's Hobbies

@Justin Looks good. I'm not crazy about having floats input since their imprecision ruins the integrity of the output sequence so to speak. Maybe inputting proper fractions and and expecting precision is an option? (That might make things unnecessarily tricky though)

Alex A.

03:54

You like chunky peanut butter, don't you, Conor? ಠ_ಠ

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Nope. ಠ_ಠ

Alex A.

Smooth?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

0.5

Alex A.

wat

Cᴏɴᴏʀ O'Bʀɪᴇɴ

"fuzzy logic"

Alex A.

03:55

I wasn't looking for a coefficient of kinetic friction

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1 = yes, 0 = no, 0 < x < 1 is intermediate

Alex A.

I'm not sure how to interpret this.

Do you only kind of like peanut butter in general?

And when you do have it you prefer it to be smooth?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

claps perfect!

Alex A.

Ok.

El'endia Starman

lol

I love smooth peanut butter. Would not eat chunky.

Alex A.

03:59

I prefer smooth but I don't mind chunky.

I really enjoy having hard opinions on things, so I tend to say I hate chunky peanut butter.

Calvin's Hobbies

@Justin I'm confused about the -9.8 test case. Shouldn't all the negative terms be present (i.e. 1) for quite a while to get down that low?

I thought I settled the pb dispute in my old question

Alex A.

It's never settled.

Multiple spaces vs. tabs questions and weeks of chat argument and it still comes up occasionally.

Sp3000

The best peanut butter is to drop that and have Vegemite instead.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

TABS.

Alex A.

@Sp3000 That's not peanut butter, that's some unholy, salty mess.

@CᴏɴᴏʀO'Bʀɪᴇɴ Incorrect.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

04:02

@AlexA. ^_^ How can a word be incorrect?

Calvin's Hobbies

Stabs

There needs to be a middle ground character

Dennis

Can I mention chunky in a question without completely derailing the Nineteenth Byte? Apparently not...

5

Cᴏɴᴏʀ O'Bʀɪᴇɴ

XD

Alex A.

@Dennis Nor can you reference spaces or tabs.

Dennis

That I knew already. But I didn't even mention peanut butter. :P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

04:04

off-topic

Alex A.

My girlfriend's dad has had a jar of "soy-nut butter" in his fridge for as long as I've known him (~10 years). I'm fairly certain that he's never tried it and it's the same jar from 10 years ago.

2

Cᴏɴᴏʀ O'Bʀɪᴇɴ

^ literally laughing out loud

Calvin's Hobbies

@Dennis Should've used lumpy

Sp3000

btw has anyone tried this cop? Got about half away and now I've given up

Calvin's Hobbies

@Sp3000 If you removed the 3 you'd look like Spooo

I hope that helps

Sp3000

04:13

D:

"SPOOOO - the anthromorphic/furr..." okay no thanks

PhiNotPi

Does anyone have any idea what might be causing my new errors?

Calvin's Hobbies

Spooo

Sp3000

@randomra @undergroundmonorail Suggestions welcome

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Good night people

El'endia Starman

G'night!

PhiNotPi

04:47

@Calvin'sHobbies @El'endiaStarman I figured out my problem.

I just had to import jQuery before those other scripts I was importing.

koth-phinotpi.rhcloud.com/imagetest.pl

Alex A.

Not enough jQuery. Just as I suspected.

PhiNotPi

I am working on a graph to serve as the scoreboard for my bitcoin trading challenge.

Also, I should probably call it a code-challenge rather than king-of-the-hill

goodnight!

El'endia Starman

G'night!

....[waits for the Sandbox bot]...

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

The /\/\aze of Mirrors code-golf ascii-art sniffs...something smells...fishy. The reason being that there's actually a fish! But it's at the end of a maze of mirrors that you have control over. Your task is to rotate the mirrors until you can see that delicious-smelling ><>. Luckily, there are...

Alex A.

05:27

This took so long. But it works! \o/

Optimizer

05:41

and its long too

Dennis

@AlexA. The question allows URL shorteners, so you could use codegolf.xyz/posts/$n/revisions.

Alex A.

@Optimizer Yes it is. It really is.

@Dennis Good call, I'll give that a try. Thanks!

Dennis

|
v

2

Alex A.

El'endia Starman

05:59

Just realized a quine in Minkolang is really easy. "66*2-(O).

Sp3000

^^ every 2D language with string parsing, basically :P

Dennis

Good night!

Alex A.

Gluten tog!

Dennis

translate: Guten tog!

(from Swedish) Guten took!

translate: Gluten tog!

(from Swedish) Gluten took!

Alex A.

translate: Gluten tog!

(from Swedish) Gluten took!

O no u took ma gluten

You broke into my house, ninja'd my Swedish, and stole all of my gluten.

@El'endiaStarman You just realized that? @Dennis has always known this. Dennis knows all things.

El'endia Starman

06:06

@Sp3000 It's shorter than Befunge and ><>'s quines though! :D

Sp3000

My reply: :D

Alex A.

@Sp3000 I thought you had stopped development of Golfish? (Or was that Slip?)

Sp3000

Yeah I did, but I started again yesterday cos I've been ><>ing so much lately

El'endia Starman

@Sp3000 Double quote in code, single quote in output. HRM.

Sp3000

Yeah typo, I edited the link

Alex A.

06:10

@Sp3000 Do you still do Slip?

Sp3000

Yep, but I'm reimplementing things... slowly

Apparently I did groups all wrong last time

Alex A.

o nose

What's the implementation language? Python?

Sp3000

Yeah, basically the only language I'm confident doing big things in :P

El'endia Starman

Reasons your quine is shorter than mine: you have d as 13 and your H is my (O).. However, I think my choices will prove beneficial for more complex programs. :P

Ha, my implementation language is also Python!

Sp3000

To each their own :P

btw how do () loops even work in 2D? I was having trouble getting that to not be a do-while

Alex A.

06:15

Do you guys prefer Python 2 or 3?

Sp3000

3 definitely. They fixed a lot of broken stuff (the only time I like 2 is libraries)

Alex A.

I don't know a whole lot about the differences. What are some of the broken things in Python 2 that were fixed in 3?

Sp3000

@El'endiaStarman "As far as I know, this is absolutely the only 2D language to have recursion." - in a way not quite - that's what ><>'s stacks are for actually

El'endia Starman

@Sp3000 True. I'll amend that to say "to directly implement recursion".

Sp3000

Well Unicode's easier to work with, and print being a function makes things easier too

input()'s probably the biggest security problem of Python 2, so there's that

Alex A.

06:20

input() is evaluated input, right?

El'endia Starman

@AlexA. I stuck with Python 2 when they released Python 3, but I forced myself to work with Python 3 after like, half a year or so (so, Python 3.3). I've used it ever since.

Sp3000

Yeah, evaluated as in you can chuck __import__('os').system(...) at it too

Alex A.

Um. What.

Nobody realized that was a bad idea???

(Prior to Python 3, that is)

El'endia Starman

@Sp3000 Well, in my language, your two options are 1) don't enter the loop, and 2) do this: (0). Minkolang exits a while loop if the top of stack is 0.

Sp3000

They probably did, but I dunno

Re loop: My question is - if you don't enter the loop, how do you know where to go instead?

El'endia Starman

06:23

Not sure what you mean. Use redirectors?

Are you thinking of jumping to the )?

Sp3000

Yeah that

How do you know which one is the corresponding ), or does that not matter?

El'endia Starman

Funny thing is...there need not be a single ).

Sp3000

Exactly my problem :P

El'endia Starman

I store the location of the opening ( and the direction the program counter was heading at the time.

ndN(d2%,B
?=1dNd:2<.)
 )Nd+1*3<

That's a way to do the Collatz sequence in Minkolang. Explanation of the one line version here.

I wish I had an online interpreter now so I could point you to it and show you an animation.

That'll have to wait until I finish the Python one, though. :P

Sp3000

So what happens if something hits the ( and is falsy? Where does it go?

El'endia Starman

06:27

In Minkolang, while loops take all of the parent's stack by default. So truthy/falsy doesn't effect the start of the loop.

Sp3000

Does that mean while loops have to run at least once? Or...

El'endia Starman

Yes.

Sp3000

Hmm k, nvm

randomra

@Sp3000 after a quick look: is there a reason, z (jump n if not 0) is missing from the qQZ

would a register write and read instruction be useful? I think I wished that sometimes

if you need to store a const, now you have to push it back after every read

Sp3000

There's z for not, so it's equivalent to z<blah>Q - I wasn't sure whether it was as useful

There's V variables, do you mean like that?

(e.g. 3VXXXXD;)

El'endia Starman

06:36

There is a bit of a hacky way to make it a proper while loop: push a truthy/falsy value and jump to the closing ) if it's falsy. This will have the side effect of making the while loop run until the stack is empty though.

Sp3000

Hm...

randomra

@Sp3000 I'mnot sure how those work

El'endia Starman

Actually, unless you push a 0 somewhere in the body.

Sp3000

Yeah the only way I could think of to do a proper while loop would need specifying the coordinates to jump to if the while loop ends, but that's expensive :/

@randomra V pops top of stack and stores it in the variable corresponding to the next char

randomra

any unused letter could be a variable?

El'endia Starman

06:38

Actually, there's another way: leave the while loop forever and don't encounter a ) until at least after hitting another (.

Sp3000

Any char works actually, cos defaultdicts

randomra

so register is mostly legacy?

is Gol><> compatible now with ><>?

Sp3000

Register's still useful when you need something at the top later I think, I dunno. I wanted it to be mostly compatible with ><>

The main changes are @ rotates the opposite way and backticks escape stuff in strings, but for the most part most programs still work

@El'endiaStarman Sorry, I'm not sure how that would work?

Oh, [] is the other change, but not many people use that to begin with I guess :P

El'endia Starman

@Sp3000 Minkolang keeps a stack of stacks to handle loops and recursion. All stack-based operations operate on the top stack. So if you leave that while loop permanently, nothing in the program will know that they're not actually working with the original stack.

This is a problem if you populated the loop with a subset of the parent stack, though.

Oooh. I need to implement break.

Sp3000

Hmm k...

Wait how would break work then?

El'endia Starman

06:44

You'd have to redirect it immediately though to avoid executing the rest of the loop's code.

extend the parent stack with the loop stack.

randomra

the teleport idea is nice

Calvin's Hobbies

Super mini challenge - output an upside-down tent:

Sp3000

Yeah, I'm still not getting how you'd avoid the rest of the loop's code, but okay...

Calvin's Hobbies

If input = 1:
____
\/_/

If input = 0:
____
\_\/

El'endia Starman

@Sp3000 Let's say that, uh, U is <break>. Then you can do ...(d?v...) and have U right under the v. Or do something like ...(d2&Uv...) because & is a conditional n-trampoline.

Alex A.

06:48

@Calvin'sHobbies hi

Calvin's Hobbies

@AlexA. Doesn't compile

Alex A.

D:

#include <hug>

How about now?

:3

Sp3000

@El'endiaStarman So what happens after U? Where does the pointer go?

(trying the mini-challenge tells me I have bugs :P)

El'endia Starman

@Sp3000 Downwards. I'm assuming the programmer would put something there to "catch" it and continue doing stuff...

Sp3000

Hmm k...

@Calvin'sHobbies CJam, naive 20

El'endia Starman

06:57

@Calvin'sHobbies Quick attempt in Minkolang: 32.

Attempted to be clever. 35 bytes. Well crap.

Sp3000

Not-so-quick attempt gives 28 and a bug in Gol><> :P

Pyrrha

I've decided to post this challenge to the main site

1

A: Sandbox for Proposed Challenges

Title tbd code-golf chess Objective The black pawn wants revenge. Plot out its last attack. Rules The black pawn (U+265F) starts at the top row and moves downwards. Maximise points taken, indicating the path with X. Pawns (U+2659) are 1, bishops (U+2657) and knights (U+2658) 3, rooks (U+2656...

just need to think of a title

>.>

El'endia Starman

Got a 26 byte solution!

"\/_\/"n,2*1+gx25*"_"3D(O).

Actually 27 bytes because of the 0 vs 1 difference. Grr.

....hmmmm....

Sp3000

07:14

"/\_/"IR@~`\a`_3R:H currently works

El'endia Starman

Dang.

Sp3000

But yeah need bug fixing so that the four underscores can be pushed better :/

tbh you're probably right about the more complex programs thing though :P

randomra

@Pyrrha do solvers have to use unicode chars?

or is PRBNKQ/prbnkq ok too?

unicode chars has a bit different spacing on many machines, but it might not be a huge problem

for title: The Black Pawn's Revenge

El'endia Starman

I actually fixed a bug in D because of this. Thanks @Calvin'sHobbies!

Sp3000

Calvin should do this more - finding bugs in everyone's languages :P

(btw time in Minko looks funky)

El'endia Starman

07:32

It basically just falls through layers in one direction and it prefers to do this when possible (i.e., there's a space and you didn't boost the program counter).

Sp3000

Sounds like you could almost do functions in it

El'endia Starman

yeah

I actually do plan to add support for libraries.

Written in Minkolang, of course.

Sp3000

:) have fun with that

El'endia Starman

:)

Calvin's Hobbies

@Sp3000 Yep. I can debug code without even writing or running it.

3

El'endia Starman

07:48

@Calvin'sHobbies Give us more super mini challenges!

(Not tonight, though. I need to get to bed...)

Calvin's Hobbies

@El'endiaStarman Output a snowflake with only one instance each of _, /, or \ in your code.

 _/\_
\_\/_/
/_/\_\
  \/

Sp3000

That could almost be a main site challenge :P

El'endia Starman

....oy.

Calvin's Hobbies

08:04

(or zero instances)

Sp3000

brings out ASCII table

randomra

@Calvin'sHobbies that's a nice challenge

El'endia Starman

@Calvin'sHobbies To do it with zero instances would probably add only three bytes or so...

Calvin's Hobbies

@El'endiaStarman It's a star, man

El'endia Starman

......

I got nuthin' except a star for you.

Sp3000

08:11

lol: `.PVA`[PVB` VC`^PVDABCCaBDBADAaADABDBaDBADCH

El'endia Starman

Huh, very nice!

oh, lol

Sp3000

You could probably do something similar in ><> with a g loop

flawr

@VTCAKAVSMoACE Yes, I hope it is correct.

Sp3000

08:24

(Now back to trying to implement recursive Fibonacci...)

El'endia Starman

08:35

@Calvin'sHobbies "/_ "5DI3$["\"7G]I3$["\"3G]I4$["_"56+i2*-G]"_"4GI2$[" "89+G]" "5GI3$[25*63i-*G]r(O).

...wait, no.

I used each symbol thrice. Crap!

Sp3000

Can you do 1+ or 1- on the individual chars?

El'endia Starman

Yes. 1+ or 1-. :P

Don't worry, I've got a better way (I think).

Sp3000

Then you can do it with zero times!

nvm :P

El'endia Starman

...technically, yes. But it wouldn't be as short. :P

"/"5D"\"5DI3$[5G]I3$[1G]"_"5DI4$[9i2*-G]2G0G" "3D88+G88+G4G0GI3$[25*63i-*G]r(O).

Ta-da!!!

80 bytes. It's actually 4 bytes shorter than my previous version!

It might be better to encode it as a base-6 number and then decode it... :P

Sp3000

08:50

I think there's only 5 types of chars, so that could work

El'endia Starman

Right, yes. Base-5, actually.

...if I made For loops take the whole stack by default, that would shorten my code by 8 bytes.

Okay, I really need to go to bed now. G'night!

Sp3000

Night :)

New Sandboxed Posts

09:25

1

A: Sandbox for Proposed Challenges

Categorical logic Inspired by this question: Task The point of this challenge is to create a function or program that takes 3 short phrases and returns the logical assessment of the phrases. Input Each of the three phrases will be in the form: [All|Some] [A|B|C] are [A|B|C]., where the two A...

New Main Posts

09:58

-5

Q: Caffeine also forces the Alpha Peak

Caffeine also forces the Alpha Peak liver to release more glucose in the blood. This causes blood sugar often followed by a sharp drop in blood sugar. (The need for stairs or another cup of coffee!) Additional Café also puts extra strain on your kidneys.http://www.healthcaresdiscussion.com/alpha-...

tips

Lembik

10:13

hi all

Martin Büttner

This is sort of ready for review:

1

A: Sandbox for Proposed Challenges

Render a Polygram code-golf graphical-output geometry I will flesh this out some more tomorrow. Given the number of vertices n ≥ 3 and the "step size" 1 ≤ m < n/2 (indicating the distance between two connected vertices), output a graphical representation of the corresponding regular polygram....

New Main Posts

0

Q: Non Unique Elements

Write a program to find non unique elements of an array. data = [-34, 0, 1, -34, 4, 8, 4] should output [-34, 4] Winner - Minimum no. of bytes

code-golf

Sp3000

@MartinBüttner I like how you try to close all the "I'm printing black on black so you can't see" loopholes :P

Martin Büttner

:/ I don't like how it complicates the spec

Sp3000

But yeah, looks pretty good

trichoplax

10:42

@MartinBüttner Not a problem with your wording, but with me jumping to conclusions, but just to let you know my initial assumption was that "multiple closed loops" required filling the enclosed areas in different colours, rather than using different colours for the distinct loops. Reading on and seeing the example images cleared it up completely, so the only thing I'm left wondering is whether you have a requirement for a consistent background colour like in the examples.

@El'endiaStarman Thank you :) I get similar results with that one, choosing which colour to see or shifting to a gradient or blotches. With magenta/green I also seem to be able to get a grey mix if I focus for a while, which I couldn't get with blue/yellow.

Martin Büttner

11:04

@aditsu nice, I had the exact same 13 byte solution :) (but went to lunch instead of posting it ^^)

> - You may choose any (solid) background colour.
> - For polygrams consisting of multiple closed loops, you must support at least 6 visually distinct colours, all of which must be different from the background. (Grey-scale is fine, provided the shades are sufficiently spread out through the spectrum.)

@trichoplax does my edit to the first paragraph clarify things?

trichoplax

I think I could still have read "loop" as a little loop to be filled, but "line" clears it up completely.

Martin Büttner

I could replace "loop" by "polygon" but someone could still interpret as a polygon tessellation of the polygram

trichoplax

Yes, and I am struggling to think of a wording that wouldn't be potentially ambiguous

aditsu

@MartinBüttner thanks :)

Martin Büttner

Sp's solution is quite nifty, too, though :)

trichoplax

11:10

"cycle" might be less ambiguous, but I also think less clear, so it's probably best to stick with the current wording.

Martin Büttner

I tried RLE first, but couldn't get it below 14

Martin Büttner

11:24

beating alephalpha in Mathematica feels as good as beating Dennis in CJam :D

@aditsu eh, dodgy... just because the spec is vague and contains a variable assignment in an example, I wouldn't assume that he intentionally overrode our default "submissions have to be full programs or functions, not snippets"

aditsu

No need to input, you can assume data in variable 'd' — garg10may 40 mins ago

Martin Büttner

oh right... I'll roll back some of my edit

well, in that case, I can use Select instead of Cases

New Main Posts

11:42

1

Q: Regular Polygrams

Given the number of vertices n ≥ 3 and the "step size" 1 ≤ m < n/2 (indicating the distance between two connected vertices), output a graphical representation of the corresponding regular polygram. If the polygram consist of multiple closed loops, each loop must be rendered in a different line c...

code-golf graphical-output geometry trigonometry

Geobits

12:41

TIL: Caffeine also forces the Alpha Peak liver to release more glucose in the blood

Martin Büttner

Cases[ಠ⋃ಠ,n_/;ಠ~Count~n>1] is also a valid answer to the non-unique array elements (provided the input is stored in ಠ).

I should remember that for the next pop-con...

Optimizer

you can just put it in there for lulz

New Main Posts

12:59

0

Q: Take an array of Integers and get the best minimum cobination of integers that output greater then equal to 30

Take an array of integers and get the best minimum combination of integers that output greater then equal to 30 For example : Input : [8,15,19,20,13,2,25,3,7] Output : [20,13] //20+13 >= 30 Input : [4,7,3,14,23,7,17] Output : [23,7] // 23 + 7 >= 30

fastest-code

Geobits

NewMain is slackin today...

Martin Büttner

Hm, I want to make another regex-substitution golf challenge (like codegolf.stackexchange.com/questions/47566/…). The task would be to transpose (or rotate?) a rectangular input string. I'll have to come up with a different scoring though, because .NET can solve this in a single substitution again (although it's fiddly).

Geobits

13:19

What about rotating a spiral rectangle? As in the center pops to the outer corner, and everything else moves in one?

I'm no regexer, but that doesn't sound like it's possible in a single sub.

Martin Büttner

unclear what you're asking, please provide test cases.

Sp3000

What can't .NET do in a single sub? :P

Geobits

987
216
345

rotate once to:

198
327
456

Martin Büttner

oh I see

@Sp3000 anything that requires the conditional appearance of new characters

Sp3000

Ah.

Martin Büttner

13:23

@Geobits that sounds like a fun challenge even if not restricted to regex

Geobits

Yea I was just thinking that lol.

Martin Büttner

@Sp3000 also, I don't think .NET's regex engine is TC without looping (at least I haven't found a way yet to trick the engine into a potentially infinite loop).

Sp3000

Hmm I see

Martin Büttner

anyway, I think this particular problem might be possible in a single regex substitution... it's just going to be a horrible mess

Geobits

13:37

Ok, I'm satisfied that rotating spirals isn't a duplicate. May post it later :)

Martin Büttner

:) Looking forward to it

New Main Posts

13:54

0

Q: Code me a Jam!!

On occasion I get a little blue and need a little music to cheer me up, but clicking the start button and finding my media player takes sooooooo long. I want a faster way to play a song. The challenge: Write a program that: Choose a song from my home directory (so you don’t mix-up program sou...

code-golf music

Justin

14:08

@MartinBüttner Hi

Martin Büttner

hi

Justin

I'm not sure that rearrangements of the Alternating Harmonic Series can have any arbitrary rational number as one of the terms of the sequence. I know it can converge to any real number, but not that each rational number q has a sequence with q as one of the terms (of partial sums)

orlp

@Maltysen I am now

Martin Büttner

@Justin oh, I see the confusion. that's not what I meant by "exact results". I'd still asks for the first n bits - just that you don't tolerate any errors in those first n bits due to rounding.

Justin

Oh that makes much more sense

Martin Büttner

14:13

are there any rules about what to do if input is a number that appears as a partial sum (and n is greater than the number of terms in that partial sum)?

Justin

@MartinBüttner I could give a decimal input and require the use of arbitrary-precision decimals instead of doubles.

>>> 1, 10
1 1 0 1 0 1 1 0 1 0

@MartinBüttner 1 appears as a number that was a partial sum, but we continue

Is that what you meant?

Martin Büttner

oh I see

might be worth mentioning explicitly in the rules somewhere

Justin

Okay

Martin Büttner

I generally prefer rationals over arbitrary-precision decimals (probably because arbitrary-precision decimals are really just a special case of rationals)

also I think you should use consistent output formatting in your test cases (it's clear from your spec that other formats are allowed)

Justin

Okay.. I'm just thinking of how many languages don't have built in rational types. I only know of Ruby and Python

orlp

14:16

@MartinBüttner that makes sense until you consider sin and friends

Martin Büttner

@Justin but how many have built-in arbitrary-precision decimals? :P

(and it's not that hard to implement rationals yourself with arbitrary-precision integers, if you only need to support a small number of operations)

Justin

More. Java does for example.

I guess I could say either is allowed, or I could require rational types but give the code to import the rational type for free. Or something along those lines...

(In truth, I generated the test cases via floating point type, which is why I said that the test cases aren't infallible.)

Martin Büttner

well, not all languages have custom types either. allowing both sounds good to me though.

(you could simply require exact results, which would then imply that some sort of arbitrary-precision arithmetic has to be used)

aditsu

14:55

@MartinBüttner regarding Non Unique Elements, do you think it's enough if the snippet evaluates to the correct result? I.e. no need for p in CJam/GolfScript?

Martin Büttner

probably

aditsu

heh, "probably"
you're the one who added that wording

Martin Büttner

well I would say yes, but ultimately I can't tell you what the OP would say :P

most solutions don't do any printing

aditsu

well, down to 10 bytes then

Martin Büttner

@Geobits hmmm, 50 bytes in CJam for the spiral rotation (provided it's just a single character in a fixed direction, but making the shift a parameter shouldn't be too expensive)

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