The Nineteenth Byte

12:03 AM

Ok good I solved it by doing sudo rm -rf /*npm*

And then it let me actually dnf install npm

12:58 AM

@Riker if you're here, could you ping me on discord? I need to talk with you at some point, preferably soon before I decide I don't want to

Riker

1:46 AM

@Blue k

New Meta Posts

2:02 AM

1

Q: Should I update this challenge? (Moby Dick)

I recently posted the challenge Write Moby Dick, approximately, which has proven popular and the answers are flowing in. However, it has one unforeseen issue that I'm tempted to try and fix. The current best-scoring answers solve the problem in two steps: first strip out the newlines, then run s...

discussion

wizzwizz4

8:08 AM

@Pavel And then you discovered a mysterious absence of the files you wanted to run with it.

mınxomaτ

8:37 AM

New Google encoding / compression format: encode.ru/threads/…

Adám

9:37 AM

@MartinEnder Can you rename an already scheduled event?

Martin Ender

I don't think so

flawr

10:33 AM

Is there anything one should know before creating new tags?

I'm asking for this: codegolf.meta.stackexchange.com/questions/14400/…

Mr. Xcoder

10:47 AM

ಠ_ಠ

Oh seems like I've been ninja'd (by ~~a couple~~ a lot of hours...). Too late to delete

flawr

@Mr.Xcoder that is what dennis' comment on the starboard is about:)

Mr. Xcoder

@flawr Ninja'd ^^

CMC: Given an integer, return [1, [1, integer]]. The order does matter

1234 -> [1, [1, 1234]]

user202729

Seems like an useless CMC...

Mr. Xcoder

Since when do CMCs need to be useful :(

user202729

Jelly, 4 bytes

Mr. Xcoder

11:00 AM

I have half your byte count

(BTW your link is broken)

user202729

It's El'endia Starman style spoiler link, hover over it to see the code.

Fatalize

6 bytes

Mr. Xcoder

Oh how did you do that spoiler?

user202729

See message history. (for message source)

Mr. Xcoder

.... you didn't edit it, I cannot see the history

user202729

11:02 AM

You can

Mr. Xcoder

O ok

Jelly, 2 bytes

flawr

coding-theory now exists!

Fatalize

@Mr.Xcoder empty code on TIO

Mr. Xcoder

@Fatalize That is intended.

8 mins ago, by user202729

It's El'endia Starman style spoiler link, hover over it to see the code.

Fatalize

why not have both?

Mr. Xcoder

11:12 AM

¯\_(ツ)_/¯

user202729

Good idea.

... moby dick became HNQ, which will make the upvote abuse worse ...

+46/-15 in comparison with +39/-0 ... too bad.

By the way...

@user202729 I believe that if you have a problem with this answer, you should take it to the PPCG Meta site or a chat room because it sounds as if this comment thread is very chatty and Stack Exchange rule discourage conversation in comments. (I have no intent or desire to cause any disagreement here.) — juniorRubyist 4 hours ago

Should some mod clean it?

Mr. Xcoder

Just flag it if you think so

user202729

11:34 AM

[Javascript] Is (...) equivalent to alert((...)), up to displaying the alert?

Because I try to bookmark a URL javascript:(...) and it doesn't work, but when I try to debug it by wrapping alert around, it works.

user202729

11:46 AM

Any more sandbox review for that? It got 1 upvote and nothing. Includes potential clarification request, or duplicate.

Adám

@user202729 Personally, I have no idea what's going on in that challenge. I guess it just isn't for me.

@Mr.Xcoder APL (Dyalog Unicode), 5 bytes 1(1⎕)

Mr. Xcoder

@user202729 Same as Adám, I have absolutely no idea what you are asking.

Zacharý

12:10 PM

1(1<quad>) what on earth is that doing?

Is it just a nested array

Adám

@Zacharý Yes, no primitives, just a two-element vector where the second element is a vector where the second element is input.

Zacharý

Why on earth would a challenge like that exist?

Adám

1 hour ago, by Mr. Xcoder

Since when do CMCs need to be useful :(

Zacharý

...

Adám

@Mr.Xcoder J, 5 bytes: 1;1,]

Zacharý

12:14 PM

n=>[1,[1,n]]

Adám

@Zacharý Such verbosity ;-)

CMC: Given an integer, and a repetition number, repeat the transformation [1,integer] that many times. The order does matter. E.g. 42 0: 42; 7 2: [1,[1,7]]; 1 7: [1,[1,[1,[1,[1,[1,[1,1]]]]]]]

Mr. Xcoder

@Adám Jelly, 2 bytes Ė¡

(BTW this is a better variant of my CMC)

Adám

@Mr.Xcoder I'm an APLer. I like to generalise concepts.

Emigna

@Adám 05AB1E, 4 bytes: FXs‚

Erik the Outgolfer

@Adám then you could generalize it even more :P

Adám

12:29 PM

@EriktheOutgolfer Yeah, if the padding number was also an input, then Jelly's Enumeration trick wouldn't work.

Mr. Xcoder

:(

Erik the Outgolfer

@Adám I meant something like this

@Adám f([5, 1, 1, 4, 3], [1, 6, 2, 3, 4]) -> [[1, 5], [2, [2, [2, [2, [2, [2, 1]]]]]], [3, [3, 1]], [4, [4, [4, 4]]], [5, [5, [5, [5, [5, 3]]]]]]

Mr. Xcoder

> APl learning session

Is this intended @Adám?

Erik the Outgolfer

he wanted to fix that typo

Mr. Xcoder

Ah I see now

Adám

12:33 PM

CMC: Given the integers a, b, c, d repeat the transformation c→[a,a,…,a,a,c], d` times, where the number of as is b.

Erik the Outgolfer

@Mr.Xcoder it doesn't seem like unsolicited advertising though

Mr. Xcoder

Hm...

Ok then, VTD

Erik the Outgolfer

but you can still downvote

Mr. Xcoder

I did

ಠ_ಠ – This is not suited for Stack Overflow.

New Main Posts

Recent Questions - Programming Puzzles & Code G…: Loop It

posted on January 11, 2018 by flawr

Challenge Given a finite list of unique integral points in the plane, find a polygon whose vertices are exactly those points, which does not self intersect. Details As input you can take e.g. two lists with each the x- and y-coordinates or a list of pairs. The input list contains at least 3 points. The list of inputs is can be assumed to be not co-linear (the …

Mr. Xcoder

12:39 PM

@NewMainPosts Did the NMP template change?

Erik the Outgolfer

it happens sometimes

Adám

@Mr.Xcoder Why not, he seems to ask about a specific Python function.

user202729

Fortunately I didn't post this on main...

Erik the Outgolfer

he means not suited as it is, and most probably would already be some dupe if converted to high quality

user202729

@EriktheOutgolfer ... what are you talking about?

Mr. Xcoder

12:45 PM

@user202729 About this (presumably)

Erik the Outgolfer

what Mr. Xcoder said above

Adám

@user202729 codegolf.stackexchange.com/questions/58874/…

Heh, deleted things don't one-box.

user202729

Of course.

Otherwise anyone can cheat by posting a link to a deleted question.

Erik the Outgolfer

not exactly but they can still see too much

user202729

(just enumerate all possible posts values, and get yourself banned because of posting too frequently)

Adám

12:47 PM

@user202729 Well, maybe only one-box for those who can see deleted posts.

user202729

That's more work for the developers...

Erik the Outgolfer

chat isn't good at determining such a thing

user202729

@EriktheOutgolfer It knows who are logged in.

Erik the Outgolfer

"SE chat rep" is simply the sum of all reps, and I don't think it's intelligent enough to change message appearance based on rep

user202729

... correct.

Can you create account on 20 sites to participate in chat?

(because on each site you have at least 1 rep)

Mr. Xcoder

12:50 PM

I don't think so

Adám

@user202729 Doesn't that give you 1920 rep?

user202729

@Adám ... how?

Mr. Xcoder

20 * 1 = 20...

Erik the Outgolfer

I'm not sure if sites where you have 1 rep count

Adám

@user202729 1 rep for first site, plus 1 for each plus 19 association bonuses.

user202729

12:51 PM

1 + 19 * 101?

No, you only get association bonus if you get at least 200 rep (see EriktheOutgolfer's message below) on one site.

Mr. Xcoder

@Adám ... You have association bonuses on each site (so 20, not 19).

Adám

@user202729 Oh.

Erik the Outgolfer

@user202729 you mean 200

user202729

Anyway... can I try it?

Is it SE abuse?

Erik the Outgolfer

try what

Mr. Xcoder

12:53 PM

I am pretty sure only "true rep" counts (so +1 for joining doesn't count).

Adám

@Mr.Xcoder Wait, are there different types of rep?

user202729

@EriktheOutgolfer Create an account on 20 SE sites.

Adám

@user202729 I don't think that's abuse. Lots of users have only joined many sites, but not gained any rep there.

Erik the Outgolfer

if you have enough rep to have association bonuses then you have enough rep to chat (well, maybe except SO and Meta.SE where assoc. bonus can give you the rep right away)

dzaima

@user202729 you need 20 rep on a single site (since talk in chat is a site priviledge)

Erik the Outgolfer

12:55 PM

and yes, there are two kinds of reputation points, earned and association

although that doesn't matter for chat, it only matters for answering protected questions

user202729

Ok.

Is my sandbox question that unclear?

Erik the Outgolfer

link?

Adám

@EriktheOutgolfer Then bounties should cost association points so that it wouldn't affect privileges.

user202729

Good question. can you put a bounty using association bonus?

Erik the Outgolfer

@Adám how would >100 rep bounties be possible then

user202729

12:58 PM

If you got 1 initial rep, 100 assoc rep and 10 real rep, and then bounty away 100, can you answer protected question? What if you bounty away all until you get <10?

Erik the Outgolfer

better not try :p

user202729

1 hour ago, by user202729

Any more sandbox review for that? It got 1 upvote and nothing. Includes potential clarification request, or duplicate.

Erik the Outgolfer

btw being able to answer protected questions isn't a privilege, privileges are based off of total reputation (earned + assoc)

user202729

So what is it?

Erik the Outgolfer

question protection is actually a bit special, it's a protection measure for questions which are easy to answer wrongly by inexperienced users

mınxomaτ

1:00 PM

Neat, the letsencrypt vulnerability just killed all of our deployments :/

Can't even restart them because they just killed the feature.

Adám

@EriktheOutgolfer You should just end up with a negative ass rep, as long as your total rep is positive.

user202729

... I don't think SE works that way ...

Erik the Outgolfer

@Adám except that association rep is really just that, association with your earned 200 rep on another site of the network, there's a reason it's called that

user202729

(ask SE dev to be sure)

flawr

@HyperNeutrino I'm not sure whether I should allow your second proposal

user202729

1:10 PM

... reply to what? Messages in TNB may be confusing if it is a reply to a question on main/meta...

Anyone know how to force C++ GCC to use __builtin_trap (which contains backtrace) when _GLIBCXX_DEBUG errors out?

(... what happens when you are forced to use C++ in programming contests ...)

Erik the Outgolfer

you don't need to worry what is being replied to in most cases :P

user202729

Sorry, pressed the wrong button. Luakit...

HyperNeutrino

@flawr Personally I think requiring the indices doesn't add anything to the challenge because going between the two is easy (mapping over list get-by-index one way, and mapping over list find-index the other way)

flawr

I actually thought outputting the indices would be easier, so I think I should just allow both methods, right?

HyperNeutrino

I'd say yes.

flawr

1:14 PM

Ok, thank you for the suggestion!

HyperNeutrino

Personally I think outputting the points themselves is easier because then you can just take permutations and filter over <some validation function>

No problem! :D

user202729

... and it's weird when _GLIBCXX_DEBUG in Linux allows backtrace...

flawr

@HyperNeutrino I see, that makes sense. (I think you can delete both your comments now:)

HyperNeutrino

yup :D

user202729

1:33 PM

Can I post a solution that is temporarily not-perfect, if I will golf it later?

For example, like this one (Martin's post on prime challenge)

HyperNeutrino

I believe so

New Main Posts

2:50 PM

0

Q: Case-fold German

Given a German string and an indication of a case (lower/upper/title), fold the string to that case. Specifications Input will consist only of a–z plus äöüß-,.;:!?'" in uppercase and/or lowercase. The target case may be taken as any three unique values (please specify what they are) of a consi...

code-golf string alphabet text-processing

AdmBorkBork

@Adám Is the quote you're using some sort of joke? It feels like a joke that doesn't translate well.

Adám

@AdmBorkBork No, it is just a random phrase which uses all three umlauts, has eszett both in the beginning and end of a word, and has some punctuation. I just made it up.

AdmBorkBork

Oh, okay, lol

Adám

@AdmBorkBork It means something like the wheels say "ss zz" to you, because of the oil!

AdmBorkBork

Yeah, that's kinda what I was getting from Google Translate, which is what made me think it was a joke that didn't translate well. Like, if the sound normally associated with oil is "ss zz" or something -- like a play on words.

Adám

3:03 PM

@AdmBorkBork No, it is just that ß cannot really occur in the beginning of a word, so I went with a made-up onomatopoeia.

AdmBorkBork

OK, gotcha

Mr. Xcoder

3:31 PM

GitHub is down for me. It's giving me a huge unicorn for some reason

Adám

@Mr.Xcoder Yeah, I think we managed to bring GitHub down.

J. Sallé

Indeed, people here at work are freaking out

Adám

@J.Sallé Our webinar goes live in 25 mins and needs GitHub.

Mr. Xcoder

Perhaps it is just a maintenance problem / break?

J. Sallé

@Adám yeah, we have a build supposed to be published in 25 mins

mudkip201

3:35 PM

...

J. Sallé

@Mr.Xcoder let's hope so.

Mr. Xcoder

It's back up!

J. Sallé

Nice!

Adám

@Mr.Xcoder For now. It will probably soon suffer a DDoS due to everybody regaining access at the same time.

Mr. Xcoder

I'm getting a weird error:

> Refused to execute a script because its hash, its nonce, or 'unsafe-inline' does not appear in the script-src directive of the Content Security Policy.

user202729

3:39 PM

Ok, I added:

namespace __gnu_debug {
	void _Error_formatter::_M_error() const {
		__builtin_trap();
	}
}

and it seems to work.

(that is, glibcxx debug error can print backtrace)

But... now the debug information is not printed.

Any idea how I can achieve both?

HyperNeutrino

Can I get reviews on my sandboxed KoTH challenge here? It has 0 comments and 0 votes currently. It's a rather long post.

user202729

Probably something related to the linker...

@HyperNeutrino ... no one bothers to read it ...

HyperNeutrino

yeah that's the problem, because it's a very long post

J. Sallé

3:54 PM

@HyperNeutrino That's like Resistance, isn't it? I played that a while back, really fun game.

HyperNeutrino

yeah, Avalon is a variant of Resistance

New Main Posts

4:11 PM

2

Q: Square Triangles

A positive integer x is a square triangle number iff there are two different positive integers, y and z, which are smaller than x such that all of the sums x + y x + z y + z are perfect squares. For example 30 is a square triangle number because 6 + 19 = 52 30 + 6 = 62 30 + 19 = 72 You...