The Nineteenth Byte

Quill

4:02 AM

I don't think there's a term that encompasses variables as well as special words

Downgoat

@Quill "word token" works but it doesn't sound fancy

Quill

[ QuillBot ] New XKCD! Full-Width Justification:

Gonna start bugging the Unicode consortium to add snake segment characters that can be combined into an arbitrary-length non-breaking snake.

Alex A.

It's time to live up to my family name and face FULL LIFE CONSEQUENCES!

Quill

Getting married?

Geobits

So the test was positive, huh?

Quill

4:15 AM

Somebody just asked what the difference between <= and <== is on SO...

Downgoat

@Quill pls link

Quill

It was deleted... but sure: stackoverflow.com/questions/37018309/…

Downgoat

D:

Geobits

I think the main difference is that the longer shaft gives better stability to the arrow in flight.

Downgoat

@Geobits ( ͡° ͜ʖ ͡°)

Geobits

4:20 AM

Ugh. I carefully worded that to avoid Lenny, but deep down I knew it was inevitable.

Anonymous

Lenny is always deep down. It's Lenny all the way down.

Geobits

@Alex Enough suspense. What happened? ;)

Sp3000

== checks value equality, === checks type equality as well, and ==== forces both sides to submit DNA samples to prove that they're the same

21

Alex A.

@Quill Feature request: Use an adblocker

Quill

@Sp3000 I reaaaaaaally don't want to know what ===== is then...

Alex A.

4:23 AM

@Quill You can only compare C and 3 using that operator. ( ͡° ͜ʖ ͡°)

Quill

@AlexA. I turned ads back on

Downgoat

Quill

is that your history?

Downgoat

no

even works if I open an incognito window

Alex A.

My history is full of bird stuff, like how get birdseed, how fight squirrel for bread, etc.

@Quill Eventually

@Geobits What

Quill

4:24 AM

The ~~Truman~~ AlexA. Show

Anonymous

The Alex Show happens every morning in my mom's backyard when she refills the bird feeder

Downgoat

@AlexA. this is my search history:

Geobits

14 mins ago, by Alex A.

It's time to live up to my family name and face FULL LIFE CONSEQUENCES!

@Mego There's a Lenny in there somewhere...

Quill

@Geobits There's a few lennies in there

Alex A.

@Geobits Oh, that's a quote from Half-Life: Full Life Consequences, an incredibly bad fan fiction that someone read and made an animation for.

Downgoat

4:27 AM

Geobits

Aww... I was hoping for some life-changing turn of events.

Downgoat

such object accessing...

Alex A.

Aren't lennies the coins with George Washington on them?

Anonymous

@AlexA. No those are pennies. Lennies are the kid from South Park that always dies.

Geobits

4:28 AM

@AlexA. Those are quartatas.

Quill

@Downgoat M A J E S T I C

Geobits

@Mego No those are Kennies. Lennie's is the restaurant that got in trouble for being racist a few years ago.

Downgoat

> process.umask(0777)
97
> process.umask(0777)
511

wat

@Quill halp, how permission in node

Quill

sudo #woodo

Downgoat

how has this been viewed almost 8K times and still has just 2 upvotes ;_;

Anonymous

4:34 AM

@Geobits No that's Denny's. Lennies are a cutesy name for China's currency.

Anonymous

@Downgoat Because nobody cares about Macs

Downgoat

@Mego ... more than half the people here are using macs ...

Anonymous

This is not a representative sample of the entire population of Stack Overflow viewers

Downgoat

Anonymous

netmarketshare.com/…

Geobits

4:38 AM

@Mego No I think that's Yennies (if you meant Japan). Lennies are a fake currency used by Capcom in games.

Anonymous

@Geobits err yeah that country

Anonymous

I'm bad at remembering currencies

Downgoat

Haha, 10% of the market bought Windows 8...

Anonymous

@Geobits No that's Zennies. Lennies are 100-dollar bills.

Geobits

No that's Bennies. Lennies are Gump's girlfriends.

New Main Posts

4:39 AM

0

Q: How to set VAR as a list with more than one output and use it in command line argument

netsh wlan show profiles > profile.txt for /f "skip=9" token=2 delims=:" %i in (profile.txt) do set "var=%i" netsh wlan show profile name=%var% key=clear now this command works if only one SSID is there, it shows all the details of that SSID. But if more than one SSID is there than it shows th...

code-golf

Anonymous

@Downgoat I'd imagine a significant number of those users either "upgraded" from Windows 7 (and apparently didn't regret that decision enough), or bought new computers that came loaded with Windows 8 and didn't know/care enough to change it.

Anonymous

@Geobits No that's Jennies. Lennies are Mickey's girlfriends.

Downgoat

@Mego well I'm one of the idiots who bought Windows 8 even though I knew it was shit...

Geobits

@Mego No that's Minnies. Lennies are comfortable shoes.

Anonymous

@Geobits Ok you win, I have no idea what you're talking about

Alex A.

4:45 AM

I think he's talking about declining birth rates in Japan and South Korea.

Quill

He's not...

Alex A.

四百二十燃やせ。

(from English) 4 백 20 그것 블 레이즈

Mars Ultor

5:02 AM

@Mego Windows 8 was fine for me; it as Win10 I didn't like

@Sp3000 Shouldn't ==== be reference equals?

===== would be the same variable, ====== would be accessed in the same scope, ======= would be at the same place in the code

========== would be accessed at exactly the same time

xnor

=========== is just False

5

Mars Ultor

@Downgoat So is using Pypy.js for speed acceptable then?

Helka Homba

Why do people always quote "Any sufficiently advanced technology is indistinguishable from magic"? I've never really felt inspired or intrigued or impressed by it.

I mean sure, when you're a kid crazy physics things can seem like "magic". But if interstellar-capable space aliens suddenly landed on earth I and surely many others would not call it magic but rather advanced science and technology that we simply don't have yet.

Mars Ultor

5:19 AM

It just depends on the technological advancement

Now that we are in the science age, we know there is no such thing as magic

But I'm sure if the aliens were pretending to be gods/mythical creatures many would still believe it's magic

Alex A.

@xnor Add one more = and you just get "nope".

@HelkaHomba People love quotes. For example, "be the change you want to see in the world" has been used so much that it's more cliché than inspiring at this point.

Quill

+1... My parents have a banner of that by our front door.

Helka Homba

@MarsUltor Yeah, but many others would just ask "how does that actually work". Like what does someone who believes in the occult really think it is if not some psychosomatic feeling?

"Magic" is just too vague >:|

Downgoat

@MarsUltor what is that

Mars Ultor

@Downgoat It's pypy ported to asm.js

Downgoat

5:30 AM

ah, ok

Mars Ultor

@Downgoat Referring to your 'never use Python'

Downgoat

It's okay if you use Python, it's just not a good language

code in it just looks ugly and messy

Alex A.

@HelkaHomba "Any sufficiently advanced technology is indistinguishable from more advanced technology" doesn't sound as whimsical

Downgoat

oh my....

Mars Ultor

@Downgoat How?

Alex A.

5:32 AM

Is that Eclipse? Looks about right.

Downgoat

@MarsUltor eh, I'm too lazy to make an example, just take my word for it :P

Mars Ultor

@Downgoat But... Python has OOP as well

Downgoat

but it sucks

Quill

@AlexA. feel the burn

Mars Ultor

@Downgoat But that doesn't mean it looks messy

Downgoat

5:33 AM

if __name__ == "__main__":

why all the underscores???

Mars Ultor

@Downgoat That is horrible

Downgoat

was two underscores not enough

Helka Homba

@AlexA. Let's make up some new saccharine quotes then. Like "The harder your life is the better you'll be at it."

Quill

@Downgoat there's a __defineSetter__ in JS

Mars Ultor

@Downgoat They like symmetry

Sp3000

5:34 AM

@Downgoat Why not?

Downgoat

@Quill those are properties not meant to be accessed

Mars Ultor

@Quill That's not meant to be used often - it's not meant to be used at all in ES6

Anonymous

#ifdef __MY_CRAPPY__HEADER__
#define __MY_CRAPPY_HEADER__
// stuff
#endif

Mars Ultor

@Downgoat They are meant to

@Downgoat They're ES5 get and set

Downgoat

@MarsUltor In JS they are very "advanced" properties

Quill

5:34 AM

@MarsUltor "not meant to be used" and "why does this exist" are very different things

Anonymous

#ifdef __cplusplus

Mars Ultor

@Quill Yeah, but __name__ and __main__ were intended to be used in Python

@Downgoat ?

Anonymous

If you dislike underscore-prefixes being used to denote internal function names, blame C

Quill

@MarsUltor fair enough

Mars Ultor

@Downgoat What makes them different from get and set?

Downgoat

5:35 AM

why is it __main__ that is just stupid, what was wrong with main

Anonymous

@Downgoat Because this is very common:

Mars Ultor

@Downgoat You might have it loaded as main

But probably not _main

Downgoat

@MarsUltor JavaScript wasn't very OO at the time defineSetter was being used so it didn't make sense to have get and set at the time

Quill

Also PHP's __construct()

Anonymous

def main():
    # do stuff

if __name__ == '__main__':
    main()

Downgoat

5:37 AM

Python code loves repetitiveness

Mars Ultor

@Downgoat But they have been replaced by get and set in ES6 (meaning no more quadruple underscores

Downgoat

like """ """ three damn quotes?!?!?

Mars Ultor

@Downgoat For multiline strings

@Downgoat double is empty string

Downgoat

@MarsUltor I know but three quotes is not how to make multiline quotes...

Anonymous

@Downgoat Well "" looks like an empty string, so """ is the most logical delimiter

Helka Homba

5:38 AM

@AlexA. or "Spend half your time doing things for others, half your time doing things for yourself, and all your time doing things you'll enjoy."

Downgoat

@Mego no?

Mars Ultor

@Mego "" parses as an empty string

@Downgoat I have to admit JS' ` (grave mark) is a lot shorter

Anonymous

One quote is the delimiter for a normal string, two quotes is an empty string, so therefore three quotes is the next option

Alex A.

@HelkaHomba 2/10, the other one is better

Downgoat

and since when is using `3` good for repr? WHY IS THERE A DEDICATED SYMBOL FOR REPR AND NOT MULTILINE STRINGS, that is absurd

Mars Ultor

5:39 AM

But String.raw`foo\\\` is way too long

Sp3000

@Downgoat s/dedicated/deprecated/

Anonymous

Grave accent is repr in Python 2 and burninated in Python 3 because it looks too much like a single quote

Anonymous

@Downgoat Everyone makes mistakes; at least Python 3 learned from 2's mistakes

Mars Ultor

How did the Python people think it looked so much like a single quote?

Downgoat

@Mego but yet """ is still a good idea?

Anonymous

5:40 AM

@Downgoat Sure. There are plenty of use cases for multiline strings. """ is unambiguous.

Helka Homba

@AlexA. "There's a rainbow above every pot of gold."

Mars Ultor

@Mego Same as `

Downgoat

@Mego no? The only thing worse is ruby's multiline comments

Anonymous

@MarsUltor In certain fonts, ` and ' look nearly identical. That's confusing.

Sp3000

Evidence for Mego's argument: mail.python.org/pipermail/python-ideas/2007-January/000054.html

Downgoat

5:41 AM

@Mego that's a problem with your font

Alex A.

People don't often have control over the font

i.e. when viewing code online

Downgoat

true, ` might be bad but that doesn't make """ any better

Anonymous

Also Swiss keyboards, like Guido mentioned in the link Sp3000 gave

Mars Ultor

@AlexA. They can use userscripts

Anonymous

""" doesn't look like anything else except 3 double quotes

Mars Ultor

5:43 AM

Well, at least Python could add a multiline flag

Downgoat

^

Anonymous

What do you mean?

Mars Ultor

m'foo
bar'

Downgoat

or have strings be multiline as default (is this a good idea)?

Helka Homba

@Downgoat do you dislike JS and Python?

Anonymous

5:43 AM

That would make parsing much more complicated

Alex A.

@MarsUltor Not everyone who looks at code online even knows what a userscript is. I didn't until about a year or so ago.

Helka Homba

^

Downgoat

@HelkaHomba I like JS, though I feel Python's syntax is horrible. I suppose the reason so many people like python syntax is that it's either their first language, or it's just easy to learn

Mars Ultor

@AlexA. :O

Anonymous

There's a specific argument GVR made against multiline statements; I'm trying to find the relevant PEP

Downgoat

5:45 AM

._. python doesn't have constants.....

Mars Ultor

I learnt about userscripts before I started even programming

Downgoat

you can usually change the font in browser options

Sp3000

m'...' or making strings multiline could be okay alternatives, but I do wonder why they went with triple quotes (not that I mind either way)

Helka Homba

@Mego indents become tricky for starters

Alex A.

@MarsUltor Different people, different experiences

Anonymous

5:46 AM

@HelkaHomba That's a fair point

Alex A.

¯\_(ツ)_/¯

Helka Homba

]:U

Downgoat

>>> "123" > 200
True
>>> "123" > "200"
False

Sp3000

You should really stop using Python 2 for rebuttals :/

Mars Ultor

@Downgoat What's so bad about that?

Downgoat

5:50 AM

I think Python 2 is more popular though

@MarsUltor if you're going to have implicit-casting, make it consistent

Anonymous

Python 2 is a highly dysfunctional language. It's only remaining use is code golf. Python 3 is superior in every other way.

Quill

and Windows XP is probably more popular than 10, yet it's old, outdated and discontinued

Sp3000

@Downgoat That's not implicit casting though

Mars Ultor

@Downgoat ^

In python, there's a data type precedence or something

Sp3000

Python 2 does a weird thing where for comparisons that don't make sense it compares alphabetically by type name

Alex A.

5:53 AM

Seriously?

Who in the world thought that was a good idea?

Anonymous

A bunch of drunk people probably

Quill

Somebody was smoking some wacky tobaccy and was seeing magic floating rainbow pythons when they thought of that

Alex A.

Relevant quote from xnor:

in Code Golfer's Corner, Mar 30 at 4:57, by xnor

in its quixotic endeavor to compare any two objects

(regarding Python 2's comparisons)

Sp3000

>>> ImportError > () > "" > [] > zip > 0 > None
True

Yeah, fun stuff

Quill

Well I know who I'm gonna segway the conversation into during the next JavaScript bashing session

s/who/what language/; languages are peopel two

Sp3000

5:58 AM

By that token, bash Python 1 instead

Cyoce

to_a(n).map(&@chars.method(:[])).join

The disadvantage of a language like Ruby that allows method calls without parentheses is that it makes me very sad when I have to use them. :'(

Anonymous

Segue

A segue /ˈsɛɡweɪ/ (Italian pronunciation: [ˈseːɡwe]) is a smooth transition from one topic or section to the next. The term is derived from Italian segue, "follows". == In music == In music, segue is a direction to the performer. It means continue (the next section) without a pause. The term attacca is used synonymously. For written music it implies a transition from one section to the next without any break. In improvisation, it is often used for transitions created as a part of the performance, leading from one section to another. In live performance, a segue can occur during a jam session, where...

Alex A.

Segway PT

The Segway PT is a two-wheeled, self-balancing, battery-powered electric vehicle invented by Dean Kamen. It is produced by Segway Inc. of New Hampshire. The name Segway is derived from the word segue, meaning smooth transition. PT is an abbreviation for personal transporter. Computers, sensors, and electric motors in the base of the Segway PT keep the device upright when powered on with balancing enabled. The rider commands the PT to go forward or backward by shifting their weight forward or backward on the platform. The PT uses gyroscopic sensors and accelerometer-based leveling sensors to detect...

Cyoce

@Quill how about a bash JavaScripting session instead?

Quill

@Mego I no the difference

Cyoce

6:05 AM

Oh my god. Pride and Prejudice just broke the fourth wall.

> It is not the object of this work to give a description of Derbyshire

Alex A.

Breaking the fourth wall is a pet peeve of mine. TIL I'll never read Pride & Prejudice.

Quill

@AlexA. did you like Deadpool?

Cyoce

@AlexA. Good choice. Nothing happens ever. There is no plot. Just a bunch of women underhanded-complementing each other.

Alex A.

Haha alright, good to know

@Quill Didn't see it. Not particularly interested to either.

Anonymous

Tasteful fourth-wall breaking is fine by me

Anonymous

6:10 AM

I especially liked how it was done in the US House of Cards series - Frank turning to the audience to explain some of the nuances of politics

Cyoce

So normally, the cover of your book shows either the most exciting point or something representative of the content, right?

Two women sitting around staring at the walls.

Alex A.

@Mego Ugh, that would drive me nuts

Are their names Pride and Prejudice?

Cyoce

@AlexA. no, but they're proud and they pre-judge people ( ͡° ͜ʖ ͡°)

Alex A.

hah

Anonymous

@AlexA. It's done extremely well. In the first episode of the second season, Frank goes nearly the entire episode without talking to the audience. When he does at the end, it sent a shiver down my spine.

Quill

6:11 AM

@Mego that just sounds like one of those mockumentary style shows like Parks and Rec, The Office, etc

Anonymous

@Quill House of Cards is actually a very serious drama

Quill

yeah, I know, I'm describing a genre of filmography, not a genre of content

Anonymous

The fourth-wall breaking is seriously toned-down in the fourth season, though

Anonymous

It's closer to Ferris Bueller than The Office

Anonymous

It's not a "mockumentary"; one character just occasionally pauses to explain things to the audience that they otherwise wouldn't get

Anonymous

6:14 AM

It's like having a show with a narrator, but the narrator is actually a character

Cyoce

@Mego there are shows with narrators as characters; I would phrase it as "It's like having a show with a narrator, but we see the narrator speaking"

miles

6:37 AM

Does anyone think a challenge for FFT of a sequence of any length is dissimilar enough from the old challenge of FFT for sequence with length a power of 2

Mars Ultor

TIL one of the answers I posted on Puzzling.SE was on Helka's question

New Main Posts

7:03 AM

0

Q: Golf the K-means algorithm

K-means is a standard unsupervised clustering algorithm, which, given a set of "points" and a number of clusters K, will assign each "point" to one of K clusters. Pseudo-Code of K-means Note that there are many variants of K-means. You have to implement the algorithm I am describing below. In t...

code-golf random classification

0

Q: Interpret DOGO!

Interpret DOGO DOGO is a lesser known programming language. While the original DOGO (a joke language from a Usenet post) has never been implemented, a language resembling it has been created. The commands for the language are: +===========+=======================================================...

code-golf interpreter

0

Q: Traveling on a flat Earth

Coordinates in the flat-Earth world consist of latitude (x) and longitude (y), which are integers in the range 0...9999. Much like Gaussian integers, but they are always written using this notation: 411S 370E That is, with S or N appended to the latitude, and E or W appended to the longitude, ...

code-challenge arithmetic parsing

Cyoce

I am falling in love with Ruby. However, there are a few things which I dislike / think are stupid. But here's the best part: Ruby's ability to extend built-in classes lets me fix 99% of those issues!

Martin Büttner

7:31 AM

@orlp I've rewritten the math.se question in terms of matrices like you suggested, and also managed to proof (quite easily) that the costraint on the first and last column is implied by the requirement to cover all pairs, so I was able to drop that as well.

miles

I would feel really cheap answering the k-means question with a builtin

orlp

7:44 AM

@MartinBüttner with that I think we can always fix the first row and column to {1, ..., n}

Martin Büttner

@orlp that seems likely, but I'm not sure how to prove it for the row.

orlp

@MartinBüttner well, the proof is simple

Martin Büttner

oh, just rename the numbers, right?

orlp

yes

Martin Büttner

yeah makes sense

that should reduce the search space a bit

I'm considering a fastest code challenge to count these.

Sp came up with an interesting alternative representation, where you have a matrix, where each cell at index (i,j) corresponds to the pair (i,j) (you ignore the diagonal) and then you label the cells by which row the pair appears in.

For the 4x4 solution he got:

 ABC
D AB
CD A
BCD

that's quite nice and regular

Sp3000

7:53 AM

I think the general form is row i just has i*j%(n+1) for j in 1..n

Quill

Hey @Downgoat, I've cloned Cheddar's source and built the solution, the REPL says module "colors" not found

should that happen?

Sp3000

Just as a preliminary guess since this is working for 6 as well

Martin Büttner

I suppose then the interesting question is why does it work for 7 if it doesn't for 3 and 5?

Sp3000

Hmm preliminary guess is slightly incorrect - works for 1,2,4,6,10,12,16,18,22

... primes minus 1

orlp

if you can prove that then that at least shows there are an infinite amount of these

Sp3000

8:00 AM

I don't think that'd be too hard, since (n+1) is prime so i*j%(n+1) would generate a permutation without cycling, and with every step size to give all pairs

Martin Büttner

got a comment on the question. can't tell if it's a genuine question or a hint :D

Quill

@Downgoat I got Cheddar's t_repl.js working, but I can't get the normal repl.js working... is that normal?

orlp

@MartinBüttner yeah I think that does it

there are an infinite amount

at least for when n is p - 1

Martin Büttner

yeah, that makes sense. that also gives an easy way for construct a solution for those n. now for other n...

I can see that if the answer to that comment is "yes" then that we also have solutions for all even n, but I'm not sure if it is.

orlp

@MartinBüttner the best way to understand it I think is if you consider the ith row an arithmetic progression mod p, with step i

it should be readily apparent that every pairwise combination occurs

(for every combination (a, b), it occurs in row (b - a mod p))

Martin Büttner

8:17 AM

@orlp yes, I got the p-1 cases.

the comment is talking about general even n though.

orlp

@MartinBüttner well, now we know at least that there are an infinite amount of them :P

so the smallest nontrivial case right now is n = 7?

Martin Büttner

yes

Agawa001

@MartinBüttner you would be a very perfect president if u knew how to "optimise" economics by "golfing" the tax-bugdet

Martin Büttner

luckily, I don't

orlp

8:36 AM

@El'endiaStarman do you have hexakosioihexekontahexaphobia?

Martin Büttner

8:48 AM

@Sp3000 @orlp a nice side effect of your construction for n=p-1 is that all the generated matrices are even Latin squares.

(and since they're symmetric, they also cover all pairs in their vertically adjacent pairs)

bonus question for n not of the form p-1: do latin squares/symmetric solutions exist there as well.

Sp3000

9:00 AM

I was wondering about that, but for odd n you can't really have a symmetric solution....

... or can you? shrugs

Not sure whether we've had a solution where a row starts and ends with the same number

Martin Büttner

@Sp3000 why not?

@Sp3000 that can't happen

because permutations

Sp3000

Ah, yes that was right

(lost my train of thought)

Oh you mean symmetric as in transpose symmetric? I was thinking 180 degree rotational

Martin Büttner

oh right

yeah I was thinking "symmetric matrix"

but you're right, the p-1 solutions are also rotationally symmetric on top of that

Agawa001

do we have a challenge about the nth palindromic number ?

orlp

think so

Sp3000

9:09 AM

If we did, one of non-palindromic and palindromic would have to be closed as dupe of the other

... or maybe not, shrugs

Agawa001

and may not, because the evolution of palindromic numbers are less random than non-palindromic

non-palindromic can be unexpectedly a sequence of difference=1, where the only sequence of that diff is the first decade for palindromic series

Martin Büttner

I'd expect the shortest solution to either problem to be a simple iteration over all numbers which tests for palindrome-ness and rejects the wrong numbers.

Agawa001

nah, for the second its nt an iteration over all the range

because sometimes it jumps by 11, 101, etc

Martin Büttner

right. hence you iterate and reject those that aren't palindromes.

Agawa001

9:31 AM

and look at this paper conserning A002113, this is quite congruent but i dont see a way to use it for nonpalindromic numbers !!

i mean that isnt codegolf-suitable as far as i suggest

Martin Büttner

@Sp3000 @orlp playing around with n=7 by hand, you can't even make use of (i*j)%8 for i which are coprime to 8. (if you do, it's impossible to fill rows 2,4,6 correctly)

orlp

BusyBeaver(8000) is unprovable with ZFC

Agawa001

are u discussing chess problem ?

Martin Büttner

@Agawa001 no we're discussing math.stackexchange.com/q/1769877/50421

Agawa001

this is a latin square

Martin Büttner

9:44 AM

not quite

Agawa001

barely

Martin Büttner

the solution orlp posted in a comment for n which are one less than a prime do generate Latin squares, but it's not clear that Latin square solutions exist for other n

Martin Büttner

9:55 AM

@orlp that's some impressive work

also yay for the nod to code golf :D

Agawa001

10:15 AM

hmmmm

Sp3000

10:26 AM

@MartinBüttner Played around for a bit, and so far the symmetric solutions I've gotten are also Latin

(for 4 and 6)

Only a few so far though, so hard to say

Kenny Lau

10:42 AM

1

Q: Interpret DOGO!

Interpret DOGO DOGO is a lesser known programming language. While the original DOGO (a joke language from a Usenet post) has never been implemented, a language resembling it has been created. The commands for the language are: +===========+=======================================================...

code-golf interpreter

Is this unclear?

VTCAKAVSMoACE

10:56 AM

@ArtOfCode Is IRC up on stage.artofcode.co.uk?

Mars Ultor

@VTCAKAVSMoACE stage.artofcode.co.uk/questions/68

@VTCAKAVSMoACE Apparently it's not online though

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@EᴀsᴛᴇʀʟʏIʀᴋ use Math.random()<.5 for a random Boolean; use 1+(Math.random()<.5) for a random number that's one or two

Martin Büttner

@Sp3000 necessarily

Or do you mean rotationally symmetric?

Sp3000

Transpose symmetric

Martin Büttner

Well yeah. If the rows are permutations and the matrix is symmetric, the columns are permutations too

Sp3000

11:11 AM

...

I should have thought about that

Either way I'm not sure whether there even is a Latin solution for 7

Martin Büttner

Interesting

Sp3000

(either that or I have a bug)

zyabin101

@MarsUltor I checked and it's online. Just that it's blank.

Agawa001

all what i get to, solutions are different n hamiltonian paths of numbers that they have a different distance%n

Martin Büttner

@Sp3000 did you add the optimisation that both the first row and column are ordered?

Sp3000

11:20 AM

Column ordering was already there from the first/last requirement. First row technically doesn't need to be added, but I did it anyway.

Martin Büttner

You mean because the order of the first row would be backtracked last anyway?

Sp3000

Yeah

Martin Büttner

Makes sense

Are the (i*j)%p solutions unique among squares with ordered first row and column?

Stewie Griffin

In case you wonder which language to learn (or just curious). Here are the scores for the latest 50 challenges that have more than 10 answers:

Language, Average score, Median score
Jelly, 9, 8
05AB1E, 12, 10
JOLF, 14, 11
Jolf, 14, 11
Pyth, 16, 11
CJAM, 16, 16
Actually, 16, 18
MATL, 17, 14

Kenny Lau

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Jelly

Discussion of the Jelly programming language. (github.com/Denn...

Join us :)

Martin Büttner

11:30 AM

@Sp3000 re my last question, just eyeballing it, that's the case for n = 4

Sp3000

For 6 you can do a little switcheroo

Martin Büttner

Oh okay

Still looks Latin

zyabin101

@KennyLau Joined you :)

Martin Büttner

And symmetric

Sp3000

It's still Latin, symmetric and 180

Martin Büttner

11:31 AM

Ah cool

Sp3000

Since only a few entries get moved around

^^ the parts that remain the same, everything else is reversed in its row/column

Martin Büttner

11:49 AM

That moment when you book a first class train ticket and then the first class waggon is missing on the train...

mınxomaτ

Hah, classic.

Add to that: Reserving a seat number that doesn't even exist.

Martin Büttner

Exactly

mınxomaτ

Wait, is it waggon or carriage?

Martin Büttner

I think in BE carriages are pulled by horses.

mınxomaτ

Apparently it's "passenger car"...

Martin Büttner

11:51 AM

There's also car or train car, but I think those are AE

mınxomaτ

> A passenger car (known as a coach or carriage in the UK, and also known as a bogie in India[1]) is a piece of railway rolling stock that is designed to carry passengers.

Martin Büttner

Huh that's odd

I said "carriage" to a guy from Oxford and he said it was weird/archaic to use that for trains

(Then again, I think that's also what they use on the tube)

mınxomaτ

Someone told me a while ago that carriage is the correct term in the UK, but most people say wagon ¯\_(ツ)_/¯

The discussion page for that wiki essay is on fire.

Martin Büttner

Haha

Jelly

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