The Nineteenth Byte

Pavel

12:01 AM

@Dennis The 16th, two weeks from the post date, which is right now, since SE uses UTC.

Martin Ender

Something like 3pm though, which is still a few hours away.

Dennis

16:05 UTC

Pavel

Also, who decides which categories make the cut?

Riker

top couple iirc

Martin Ender

12:17 AM

we have so many people offering bounties, we could really pick all the ones with a positive score. otherwise pick the first 10 (like last year) or 11 (number of people offering bounties).

Riker

I never got around to posting it but I can do 500 rep myself for an even 12

that would include "Novel scoring mechanism", for all but one of the positively scoring catagories

Christopher 2EZ 4RTZ

12:43 AM

Hmm se still hasn't contaced me for getting my free stuff

totallyhuman

@Riker I've doubled my offering

Riker

@Christopher2EZ4RTZ what stuff?

Christopher 2EZ 4RTZ

@Riker one sec

a box full o' swag containing a T-shirt and stickers and at least some of the following items:

Nalgene water bottles
Notebooks
Sharpies & Other SE/SO branded office supplies
Stickers from various SE sites
Whatever else might be haunting our warehouse

for my +65 meta se answer

Pavel

I'm still waiting for DO to send me my hacktoberfest stuff

Christopher 2EZ 4RTZ

DO?

Anonymous

12:47 AM

@Pavel Really? I got mine mid-November

Anonymous

@Christopher2EZ4RTZ DigitalOcean

Christopher 2EZ 4RTZ

@Mego oh

Pavel

@Mego Yep ._.

Anonymous

@Pavel Maybe send them an email/tweet?

Pavel

@Mego I'll do that in a bit. I kinda forgot all about it for a while.

DJMcMayhem

12:50 AM

Random question: what is this symbol on a router: <...>

Anonymous

Rule of thumb: if someone forgets about you, they're not going to suddenly remember you without some prodding :P

DJMcMayhem

(except the dots are vertically centered)

Anonymous

What router brand/model?

Christopher 2EZ 4RTZ

What do you do when your code is broken and you don't know ruby and there are no errors?

DJMcMayhem

@Mego Google thingamijg/watchamacallit

(it's not mine)

It's on an Ethernet port, if that helps at all. I'm just trying to find out the name of that symbol

Christopher 2EZ 4RTZ

12:53 AM

dj can you hop on discord?

Riker

@Pavel ouch

I got my shirt, it's great

very soft /shrug

@Christopher2EZ4RTZ what is deserving of an RO vote here: codegolf.stackexchange.com/questions/139453/…

Christopher 2EZ 4RTZ

@Riker woops, re reading it i realize i should remove the RO vote :P

totallyhuman

I don't think we should miss out on any categories because there wasn't enough rep to go around

Anonymous

@DJMcMayhem According to the documentation I found, it's just a generic symbol Google chose for Ethernet

DJMcMayhem

o_O

Well that's dumb

Christopher 2EZ 4RTZ

1:13 AM

@DJMcMayhem well i looked over my changes and cannot find any reason why everything broke

unless...

dammit

turns out i have been running it wrong

user202729

Request more meta vote, again. +4/-3 is not supermajority...

Christopher 2EZ 4RTZ

so i found my problem

the interpreter is not running :|

It works :D

CMC: given a string of brackets reverse the string and brackets

i.e ))((}{ gives }{))((

(ruby interested)

Pavel

1:31 AM

@Christopher2EZ4RTZ Bash: rev|tr '[](){}<>' '][)(}{><'

Christopher 2EZ 4RTZ

@Pavel hmm

trying to figure out how to do this in ruby

I wonder if i can run bash in ruby

Pavel

@Christopher2EZ4RTZ Yes, with backticks

Christopher 2EZ 4RTZ

soo

a=`rev\tr '[](){}<>' '][)(}{><'

but where do i specify input?

Pavel

@Christopher2EZ4RTZ It'll read it from the console

Christopher 2EZ 4RTZ

ok this is getting ghetto

but it works

Pavel

1:35 AM

@Christopher2EZ4RTZ Ruby: puts gets.reverse.tr('][)(}{><','[](){}<>')

Christopher 2EZ 4RTZ

Wow getting people to help me make a horrible language is easy!

New Main Posts

3

Q: Reconstruct My Matryoshka Dolls

Background A matryoshka doll (or Russian nesting doll) is a set of dolls that fit inside of each other. I've accidentally mixed up my collection of matryoshka dolls and I don't remember which one goes inside which. Objective Given a list of unique strings, sort them into nested matryoshka doll...

Christopher 2EZ 4RTZ

(but in all seriousness thanks so much :D)

source2=source
  source2.reverse.tr('][)(}{><','[](){}<>')
  source+=source2

that just returns the equivalent of source1+=source1

any idea why?

input: )))(((}{ output: )))(((}{)))(((}{

hey muddyfish

Pavel

@Christopher2EZ4RTZ source2=source2.reverse.tr(...)

Christopher 2EZ 4RTZ

ahh

Pavel

1:40 AM

@Christopher2EZ4RTZ or source2.reverse!.tr!(...)

Christopher 2EZ 4RTZ

cool

pain-flak lives

Pavel

Or just, source+=source.reverse.tr(...) for the full thing.

Martin Ender

Shameless plug incoming...

After a month of work (and many more months of planning), Retina 1.0 is finally done. It's now available on TIO. If you're interested you can learn more about it in the changelog and the documentation.

9

Fair warning: the new documentation is massive, but the tripled (!) length is actually an indication of how much more powerful the language is now. I'll get to work on a more digestible tutorial soon, but if anyone has the time and patience to read the documentation, please do let me know if anything is unclear. (Ideally in the Retina room.)

Christopher 2EZ 4RTZ

wow

you really like regex

Pavel

regex is wonderful and amazing

Christopher 2EZ 4RTZ

1:47 AM

debateable

(yeah it really is cool)

Pavel

Regular expressions are the jquery of text processing

Christopher 2EZ 4RTZ

i tried to upvote your comment since it said jquery

Pavel

@Christopher2EZ4RTZ Chat does have upvotes tho

They just happen to be star shaped

Christopher 2EZ 4RTZ

yeah but can i downvote your comments?

I am not geobits

Riker

2:00 AM

@Pavel they are great and do all thigns

Christopher 2EZ 4RTZ

Jon Skeet has over 1 million SO rep!

HyperNeutrino

ninja'd by 10+ hours?

:P

totallyhuman

retina... 1.0??

it's been pre-release all this time?

Martin Ender

pretty much

totallyhuman

o_O

Martin Ender

2:09 AM

it was at 0.8.2 for the past 1.5 years

Christopher 2EZ 4RTZ

wow

Martin Ender

I mean... version numbers are pretty arbitrary. But before 1.0 I basically just added features left and right when they seemed useful and Retina was becoming a bit of a Frankenstein's monster. 1.0 was the first time that I really took a step back, thought about what I want from the language and how I could generalise all of these grafted-on features in a reasonable way and then rewrote the language almost from scratch.

2

Aaaand, it's on TIO! :)

Anonymous

Hooray!

Martin Ender

3:15am... I guess I'll defer taking the language for a spin and updating some of the "catalogue" answers until tomorrow...

Christopher 2EZ 4RTZ

@MartinEnder go to bed young man

Christopher 2EZ 4RTZ

2:34 AM

@DJMcMayhem pain-flak is up and running

And I hurt my brain trying to write hello world

user202729

4:00 AM

@MDXF ... which is what happens with answers written in unpopular languages...

MD XF

5:35 AM

@user202729 Unfortunately that's completely true

Anonymous

8:57 AM

People who live in areas where freezes are common, but not common enough to have insulated pipes: how do you avoid going mad from the noise of dripping faucets?

Adám

9:12 AM

@Mego Place objects under the faucets to lead the water into the drain.

Neil

@DJMcMayhem 20 languages: 05AB1E BASIC Batch C C# C++ Charcoal CSS dc HTML JavaScript/Node Jelly LOGO Perl Python Retina sed sh/bash SVG vim

Anonymous

@Adám Hmm... I'll give that a shot

Adám

@Mego Even tying a string should be enough.

Anonymous

@Adám Using string to wick the water into the drain?

Adám

@Mego Yes.

Anonymous

9:14 AM

That's extremely clever

Anonymous

I'll do that in the morning when I won't be able to hide from the dripping as easily

Neil

9:52 AM

@Christopher2EZ4RTZ Charcoal, 3 bytes: Ｓ‖Ｔ

Adám

10:06 AM

@Christopher2EZ4RTZ Dyalog APL, 20 bytes: b[⌽⍞⍳⍨⌽b←'[({<>})]']

Manish Kundu

10:22 AM

how much time should you wait before accepting an answer for a challenge?

Adám

@ManishKundu I'd wait a week.

user202729

You don't have to accept an answer, but you can.

Manish Kundu

yeah i think i will wait a week too.

Am I allowed to create other challenges meanwhile?

user202729

Yes, of course.

(although if no one accept any answer, no one would be able to get the extra topping hat)

New Main Posts

-2

Q: Number of leap years between two given years(both included)

Is there a better way to calculate number of leap years between two years. Assuming I have start date and end date.(in python)(codegolf)

code-golf python

Erik the Outgolfer

11:37 AM

@Adám that's what one normally does, no?

Adám

15 hours ago, by DJMcMayhem

CMP: How many languages are there, where you have at least one PPCG answer in that language? (Versions, major or minor, are not separate. polyglot does not count)

user202729

0

Q: Trying to Learn Hexagony

I'm trying to wrap my head around the programming language Hexagony. I've looked at a few sample programs and have tried writing a simple program to read input and print Hey [input]!. Here's what I have. , < . . C $ . . { . # . ; . . . # . . 2 ' . . . . # C 3 < . . # . # . . *...

memory

Adám

@EriktheOutgolfer Question is what "Versions" means.

Erik the Outgolfer

@Adám I don't think "Dyalog" or "NARS2000" can be considered "versions", more like "implementations"

Adám

@EriktheOutgolfer Now that I re-read it, I'd say you're probably right. I had read it as completely separated from the major or minor part, as in editions, major versions, minor versions.

Martin Ender

11:41 AM

@user202729 oh...

Erik the Outgolfer

@user202729 well, that's entirely the point of hexagony

> asked Sep 14 '17 at 16:23

user202729

But the OP is fairly active recently.

(I don't guarantee that the OP still has the problem)

Martin Ender

well, I can't have an unanswered hexagony question on SO, can I :D

Adám

12:03 PM

@MartinEnder No, of course not. That's almost as unthinkable as an unanswered apl or dyalog SO question!

Erik the Outgolfer

@Adám heh

mınxomaτ

12:35 PM

One of the more underrated non-code-golf projects by a PPCGer: github.com/Timwi/Generex . Just saved me a whole lot of time.

Martin Ender

oh cool, I didn't know Timwi had his own regex engine

that looks really neat

Erik the Outgolfer

Timwi actually has 89 repositories, of which 68 are for "ktane" and the other 21 are other wonderful projects

ATaco

1:19 PM

I need to write a tutorial for funky, to make it more accessible

Despite it being powerful and flexible, things like its operators will feel trial and error if their not explained properly

user202729

1:33 PM

How can I configure wine to use my DLL? I tried to use winecfg, but I don't know how.

Error log:

Unhandled Exception:
System.MissingMethodException: Method
'RT.Util.Serialization.ClassifyOptions.AddTypeOptions' not found.
[ERROR] FATAL UNHANDLED EXCEPTION: System.MissingMethodException:
Method 'RT.Util.Serialization.ClassifyOptions.AddTypeOptions' not
found.

mınxomaτ

Jusdging from that trace, you mean a .NET assembly rather than a native DLL, right?

user202729

I'm not sure... Looks like installing RT utils instead will help.

But there isn't any...

user202729

1:55 PM

Are Python files (use open built in function) buffered by default?

HyperNeutrino

what do you mean by buffered?

my PPCG reputation is a rotation of Geobits's reputation :P

user202729

... for example, when write method is executed, is the content written to disk directly (slow) or stored in RAM (buffer)?

HyperNeutrino

oh ok

New Main Posts

-1

Q: How this folder structure should look like

I can't figure out how should this folder structure should look like. /lib/editor/~/lib/lib/color.php

path-finding

user202729

Are we getting more off-topic questions recently, or it has been at that rate all the time?

totallyhuman

2:00 PM

i think that was my fastest vtc ever lol

5 secs on the timestamp

Anonymous

@user202729 There's a parameter for that: docs.python.org/3/library/functions.html#open

Anonymous

@user202729 It's pretty common. Actually, for the past few weeks, we've been getting less than usual (from what I've seen)

user202729

Should I delete the recent main post?

Jan 2 at 5:16, by Dennis

126

Q: Turbocharging the Roomba: solutions for premature deletion

A couple weeks ago, I asked for help: How can we stop premature deletion? And I got some fantastic responses. A big thanks to everyone who participated in that discussion - you're the reason I don't completely hate Meta Stack Overflow. The big takeaways from that discussion were: Show users t...

discussion deleted-questions auto-delete deletion

totallyhuman

@user202729 no need to :P

Anonymous

@user202729 Beat you to it :P

user202729

2:05 PM

Too quick...

Anonymous

If something is blatantly off-topic with no hope of redemption, there's no harm in casting quick delete votes. Not VTDing is just delaying the inevitable

user202729

Because issue (1) is solved, for such "blatantly off-topic" question we can just delete it. Correct?

Anonymous

Yep

Anonymous

Only if there's hope for redemption (like rephrasing a poorly-stated question into a tips question) should you hesitate to VTD

user202729

CMP: Do you think this deleted question can be well-received on SO?

HyperNeutrino

2:08 PM

I doubt it

Anonymous

@user202729 No. It shows no research effort. Anyone familiar with C (or who became familiar with C after a bit of searching) would easily understand it.

Heeby Jeeby Man

I don't understand th question if it was heavily modified perhaps but I would need to understand what was being asked before I could make any predictions about SO

Anonymous

The general answer for "would this question be well-received on SO?" is no. They hate everything over there, with few exceptions.

user202729

stackoverflow.com/q/16836860 stackoverflow.com/q/7202157 Those questions are of similar states, but get hundreds of upvotes.

(no effort from OP, ask how this could work, end)

Anonymous

It's worth noting that both of those questions are quite old. SO culture has gotten much more serious and negative over the years

user202729

2:12 PM

Hm, that too.

Heeby Jeeby Man

In my experience a rather small percentage of the users are negaitve. Most users are rather helpful.

user202729

@HeebyJeebyMan Only if the question is serious.

Oh hey, the Hexagony SO question has got one more upvote.

"the" ...

Is mono required for dotnet?

Anonymous

@user202729 No. In fact. dotnet is from the .NET Core collection, so they're entirely independent

user202729

I use winetricks to install dotnet, and it complains a lot about mono does not appear to be iinstalled.

Anonymous

You shouldn't need winetricks to install .NET Core

user202729

2:16 PM

Ah yes...

Ok, I'm not sure how to proceed. Hopefully I don't do anything stupid.

Anonymous

Undo what you did, install dotnet via your package manager

Anonymous

Or build it from source if you have to

user202729

... then will it work with wine?

Anonymous

Maybe?

Anonymous

What exactly are you trying to do?

user202729

2:23 PM

Trying to get something to run under Wine.

Anonymous

If you need .NET in wine, just install the .NET runtime

HyperNeutrino

why does enumerate take ZERO positional arguments???

https://tio.run/##jVZdb9owFH0mv@ISacJeM0bXdpWo@rCHTZq0h2mrtAeEkCEOeE3iyHbE2LTf3l1fJ0CAllWiSmyfc@63U23cSpdXT2vlVqArWbLY1vNCWat0Oaw2cQLxOuYgLGTjqJcN10Y5yeLKqNIxVVa1YxwuYNAf8JhH0R5PZfQ8l8XMSetmtkbYS3wa@Szcw@QmgZvpHRA1LUwGK5nnepDAYK1Nng6mCUwGS63T@Ub61VxlcjBFjK7dAai/RfU7sH6L6xPQqULmqlAOoZcxf1JFpY2j5SjKjC7ArYwUqSqX0Oy9DusYLPRzIa3dbUSpzGBpRCrZQheFKNMEfBAs9x5rAxSMWVkXCbDgeAIqhCgBHR44RgAknpFGYIB@q4oRx7AFhLcQpvatCQD3Qr2NknkKbJTs6wU0x237qCp095PIrcRXbxdlKpil0JATJhxZSUo9lYGno@dW9ybZ8nm5nkSdcMCZTXjo7VWLk0WVCicOCoT@2ipR/EWYOYChVXE8/Ikes0JUbLEyCSxWcvE4C…

oh I'm smart I imported * and that caused ambiguity

user202729

... using namespace std's analogy in Python.

HyperNeutrino

yep :/

user202729

... all the top 10 servers return error 404.

user202729

2:40 PM

winehq.org/pipermail/wine-bugs/2016-May/443736.html

> I suggess you to use winetricks to install .net framework series.

...

Pavel

@Mego If you need .NET in wine, you should try to use mono and see if it works

user202729

stackoverflow.com/search?q=%22I+am+new+to%22

Pavel

3:24 PM

I just got a KDE patch that fixed an issue I was having where programs other than my browser couldn't open webpages (e.g. Discord couldn't open the help page in my browser). Also, the only way to download files was through wget or curl, since the normal save-as dialog that KDE provided would crash immediatly.

On the other hand, it broke the keyboard shortcut that let me open my terminal with ctrl-alt-t, so overall I'm dissatisfied with this update.

In fact, I know can't set a keyboard shortcut for konsole at all.

Hmm, Dolphin seems to finally work. Hooray for having a GUI file viewer!

user202729

Can anyone help me with an arch linux problem?

Pavel

3:44 PM

@user202729 Depends on the problem

user202729

Ok, every time I suspend the computer, when it wakes up, it freezes and prints a lot of logs to the terminal. I can't type anything that cause it to recognize.

Of course I can't copy it anyway. Some of the contents are:

ata5: SError: {DevExch}
Ext4-fs error (device sda8): ext4-find-entry:1436:inode ????: conm gmain reading directory lblock 0
ata1: exception Emask 0x10 Sact 0x0 Serr 0x4000000 action 0xe frozen

Pavel

@user202729 have you tried booting from a live os and running fsck?

user202729

I mean, normally the OS is live, but after suspend and reboot it prints those logs repeatedly. I have to force shutdown (hold the power button)

Pavel

@user202729 I mean put a different Linux on a flash drive and boot from the flash drive.

user202729

Why?

On boot, the system has something about "inode cleaned".

Pavel

3:56 PM

@user202729 To run fsck. If you run fsck on the same system that's currently booted, you'll nuke your hard drive. I don't know if fsck will fix anything but I'm told it's amazing and does all things.

user202729

...? I don't really understand...? / I don't have any bootable flash drive/etc.

15 hours ago, by user202729

Request more meta vote, again. +4/-3 is not supermajority...

^ Now +6/-4. I'm not sure if I should accept it, or because it's highest upvoted it will be default?

The two others are at +0/-4...

Pavel

@user202729 fsck is filesystem check. It can fix problems related to corrupt system files, but you have to run it from a system other than the one you're repairing.

user202729

I have no idea how this could help. And of course, I've encoutered situations that require fsck in the past, when Windows 10 messes with the partition.

CMP: What's your main question:meta question ratio?

@user202729 1:3.

Adám

@user202729 63:13

Pavel

@user202729 6:1

Giuseppe

4:03 PM

@user202729 1:1

AdmBorkBork

73:3

Adám

CMC: Given a polynomial function (as coefficients' list or a string formula or as a function or some other way), plot a simple area chart for the x and y ranges 0-9 using space and # for > and ≤ the y value. E.g. 0.12x³+x²-1:

     ##
     ##
    ###
    ####
    ####
   #####
   #####
  ######
  #######
  #######

Mr. Xcoder

@Adám May we take a black-box function as input too?

Adám

@Mr.Xcoder Yes.

totallyhuman

is using ⊗ for cartesian product a bad idea

Adám

4:13 PM

@totallyhuman No, that makes sense.

Mr. Xcoder

It depends. If you are planning to use that during a maths contest, then yes, it is a problem. Otherwise, it's ok

Adám

Ugh, correction: the CMC example is for -0.12x³+x²-1

totallyhuman

hmm

'cause i can't use ×

(i would've if i could've)

Adám

@totallyhuman What about ∙?

totallyhuman

i currently have that down for list concat but i'm open to suggestions

Adám

4:16 PM

@totallyhuman What does , do?

totallyhuman

also look how nice the definition looks:
(⊗)       ∷ [a] → [b] → [(a, b)]
a ⊗ b     = [(x, y) | x ← a, y ← b]

Mr. Xcoder

@Adám That sounds more like dot-product to me.

totallyhuman

@Adám on its own, a syntax error

haskell's list comp combined with unicode is readable to anybody familiar with set builder notation

John Dvorak

Do you support parallel comprehension?

zip as bs = [(a, b) | a <- as | b <- bs]

totallyhuman

unfortunately i don't think i can add it into something importing

like i can use it in my code

Adám

4:19 PM

@totallyhuman ⪤ ?

totallyhuman

but if somebody imports unihaskell, they won't have access to it

New Main Posts

1

Q: Visualize Visual Eyes

You may or may not remember Xeyes, a demo program that came with (and, as far as I know, still comes with) the X window system. Its purpose was to draw a pair of eyes that followed your mouse cursor: Your challenge is to recreate Xeyes with ASCII art. Write a program or function that draws two...

code-golf ascii-art interactive

user202729

As I said before... why did you use [congruence] for ==?

totallyhuman

GREATER-THAN OVERLAPPING LESS-THAN

haha

@user202729 because i can't use =

user202729

Just use ==...

New Sandboxed Posts

4:20 PM

0

A: Sandbox for Proposed Challenges

Calculate the Schwarzschild radius code-golf physics number The Schwarzschild radius of an object is the radius of the sphere created by collapsing the object until the escape velocity from the surface thereof is equal to the speed of light, thereby forming a black hole. The Schwarzschild rad...

user202729

How could you overload ::?

The bots are fairly active recently...

totallyhuman

@user202729 that's there if you want to use it

@user202729 it's part of the UnicodeSyntax extension

can't overload syntactical constructs

Adám

@totallyhuman ⨰ so many delicious symbols, so few built-ins…

totallyhuman

heh

Adám

@totallyhuman ⊠ "squared times"!

totallyhuman

4:24 PM

i could totally use 🤐 for zip

lol

Adám

@totallyhuman Shouldn't zip be ↯?

J. Sallé

@totallyhuman please do

Adám

@J.Sallé emojicode.org

J. Sallé

@Adám oh I'm aware of that, I just think it would be funny to have one emoji function in a language

Also the pun fits great.

Pavel

The emojicode website looks nicer than the websites for the majority of practical languages

Adám

4:33 PM

@J.Sallé ⍨ is selfie!

totallyhuman

@Pavel this is unacceptable

New Main Posts

0

Q: Are the numbers amicable?

Two numbers are considered amicable if the proper divisor of the first is the same as the second number, and the second number's proper divisor sum is equal to the first number. Let's define S(x) to be the proper divisor sum of x. 220 and 284 are amicable because S(220) = 284 and S(284) = 200. ...

code-golf math number decision-problem

Pavel

@totallyhuman Although I will admit it's been getting better, php.net, java.com, ruby-lang.org are all unquestionably worse-looking than emojicode.org.

Adám

@Pavel Wow, thank you for those. And I thought dyalog.com was bad…

@Pavel The Java one looks like one of those phishing emails I get sometimes.

Pavel

@Adám Yep :/

J. Sallé

4:39 PM

@Adám indeed, that's my favourite squiggle

Pavel

golang.org is also kinda bad

J. Sallé

Former classmate of mine worked for Oracle for some time. He said they're really touchy about their websites (java.com included) because they think they're "practical and straightforward"

Pavel

oracle.com isn't even that bad

J. Sallé

@Pavel yeah but I don't think that can be said of any other site of theirs :p

Adám

@Pavel Overly flashy (see what CSS can do!) but fairly modern look. java.com is just… I don't know what to say!

If I didn't know better, I would have thought it was a spoof or something.

I like haskell.org the most

Pavel

4:47 PM

I like it too

J. Sallé

Me too.

Pavel

iirc f# is nice

Conor O'Brien

5:12 PM

crystal's is nice

mınxomaτ

Neat, DigitalOcean just doubled RAM on droplets for free.

Pavel

@mınxomaτ I assume this is to compete with Linode, which offered exactly identical pricing plans with double the RAM.

mınxomaτ

DO is a better experience for me. I have been a long time linode user, but recently switched.

(before the price reduction)

Pavel

I know Dennis switched TIO to Linode just because of the extra RAM.

Riker

5:28 PM

@ConorO'Brien yeah, that's pretty good

haskell is nice too but crystal is better

Adám

5:55 PM

@Riker I think haskell.org looks better than crystal-lang.org. That spinable crystal is completely unnecessary.

Riker

I didn't notice the crystal, I think the haskell one is a bit cluttered

Mr. Xcoder

6:19 PM

@cairdcoinheringaahing Congrats on invalidating over 10 answers :)

Riker

@Mr.Xcoder not with his recent edit?

oh, it was 2 edits behind ignore me

HyperNeutrino

the one about a!=b right?

Mr. Xcoder

Yeah.

That's painfully annoying.

I can't be bothered to fix my answers now :/

totallyhuman

:|

Mr. Xcoder

And now I'm flooded with comments because I was the one to point it out :) – I love this!

HyperNeutrino

6:26 PM

this is why sandbox exists cough

totallyhuman

also everybody is just adding a/=b

HyperNeutrino

I'd probably just say "ok fine I'll just ignore the formal definition and let these answers be right"

Mr. Xcoder

@HyperNeutrino IMO, you can't do anything worse.

HyperNeutrino

?

Mr. Xcoder

That would IMO be a terrible choice :P

HyperNeutrino

6:28 PM

I mean it's better than making 10+ answers wrong

totallyhuman

better than what it currently is

Mr. Xcoder

I'd much rather just abandon the challenge :p

HyperNeutrino

why

ok thank you

Mr. Xcoder

@HyperNeutrino I'm not saying that I don't agree. But at this point, after the revision, that would be awful. If the edit would've been made before invaliding all answers, then that'd be great, indeed!

Oh I see that isn't what you meant.

Sorry @HyperNeutrino!

HyperNeutrino

? now i'm just confused :P it's fine

J. Sallé

6:32 PM

@Mr.Xcoder hahah sorry about that, I guess people (me included) got a little salty about it :p

Mr. Xcoder

I thought you said that you would allow a==b => truthy now, after the revisions that invalidated all of them were made.

@J.Sallé No, I love it! :-) (I love this!)

HyperNeutrino

oh lol that would be bad

Mr. Xcoder

Hence my reaction :P

HyperNeutrino

I see now :P I am no longer confused :P

caird coinheringaahing

@Mr.Xcoder I only realised the impact of the decision after you pointed out the 6, 6 test case, and it was kinda too late to change it by then :/

DJMcMayhem

6:38 PM

CMC: Given an integer, determine whether it has an integer cube root or square root.

Examples: [-27, -8, -1, 0, 1, 4, 8, 9, 16, 27] are all truthy

caird coinheringaahing

What about 8?

DJMcMayhem

I included that. What are you talking about? >_>

I also totally included 25. <_<

caird coinheringaahing

ಠ_ಠ I cant tell if that was edited in or I'm just blind

Poke

@DJMcMayhem what's wrong with that? Your challenge is cube root or square root

DJMcMayhem

@cairdcoinheringaahing It was edited in

@Poke I forgot to include 25 as a truthy input in my examples.

Pavel

6:41 PM

@DJMcMayhem IntegerQ@#^.5||IntegerQ@#^1/3&

Mr. Xcoder

@DJMcMayhem Returns an empty/non-empty list, Pyth, 7 bytes: sI#@QP6. Explanation: P6: prime factors of 6, @Q Take the nth root (element-wise), #: keep those, sI: that are invariant over flooring

totallyhuman

tfw haskell's type system makes this easy CMC ridiculously hard >_>

Mr. Xcoder

Beware that mine fails for non-positives.

DJMcMayhem

Python 3, 59 bytes: lambda n:any(n in[x**2,x**3]for x in range(-abs(n),-~n**2))

But I'm sure that could be shorter

Tips anyone?

Mr. Xcoder

::thinks::

Yeah x**2 is x*x. That should save you a byte

DJMcMayhem