The Nineteenth Byte

Lembik

5:04 PM

hmm.. I see there are lots of annoying ways to try to get round the question.. maybe I will let Arthur pose it :)

Okx

Does an empty command line argument add any extra bytes to a program?

Erik the Outgolfer

what do you mean?

Okx

like this

Erik the Outgolfer

you wanted to solve the logic gates thing?

Okx

no, i'm just wondering if it does

muddyfish

5:07 PM

@Okx I'd assume it does count as bytes

Erik the Outgolfer

I assume 3 bytes each...?

for space+""

muddyfish

because otherwise you could just have unary but with empty command line args

Erik the Outgolfer

also I've asked Adnan about that weird number thing with 05AB1E with empty program and no args

Arjun

Yay! Finally, I have found a good GUI lib for Python: Kivy!

Thanks @muddyfish for your help!

muddyfish

@Arjun wait, what did I help with?

Arjun

5:19 PM

@muddyfish Regarding modules. I wasn't able to get Kivy working. With your help, I did it. :) Thanks!

muddyfish

ah, the pip thing?

Arjun

yup

Okx

@EriktheOutgolfer that's the rats sequence

Arjun

How Jon Skeet earns rep:

1. He hacked SO database and stole all passwords

2. He serially upvoted all the top reputation holders' posts

Erik the Outgolfer

something doesn't seem right

Arjun

5:31 PM

3. Mods asked him whether he made another account to upvote his answers and whether he wanted the accounts to be merged

4. He got the accounts merged

Erik the Outgolfer

oh

Arjun

Makes sense, doesn't it? :P

Erik the Outgolfer

...kinda

Mr. Xcoder

@Arjun Someone likes Conspiracy theories

Erik the Outgolfer

the other possibility being that he stole all passwords and then he did one upvote from every account every hour...max 20 upvotes per day

@Okx o_O

Phoenix

5:33 PM

Couldn't he just grant himself a couple billion reputation points directly after step 1, having hacked the database?

Mr. Xcoder

It would make sense if we wouldn't know that JonSkeet is a pure genius

Arjun

I know this because @JonSkeet told me!

Erik the Outgolfer

@Phoenix no because rep recalc

Arjun

(will he come here because of the ping?)

Helka Homba

CMC: Given N output a square where each row ascends the ints. e.g.
N = 1:
1
N = 2:
11
22
N = 3:
111
222
333
etc. up to N = 9

Mr. Xcoder

5:35 PM

@Arjun Bad choice! Better delete the comments :)

Phoenix

@EriktheOutgolfer Oh fine, hack the database and add a chronjob that constantly causes someone to upvote 20 of his answers per day.

Erik the Outgolfer

no that's serial voting...unless we modify serial voting too

Mr. Xcoder

@Phoenix That makes far more sense

Arjun

@Mr.Xcoder Really?

Erik the Outgolfer

@HelkaHomba Jelly, 4 bytes: ẋ€⁸Y

Mr. Xcoder

5:35 PM

@Arjun No, kidding

Phoenix

Actually, wait, we've hacked the database, just modify the rep recalc

Arjun

Maybe, he will reply to me. That will be awesome.

Erik the Outgolfer

sorry but you can't ping him from here...

Arjun

Why?

Because he never came here?

Mr. Xcoder

Yes.

Phoenix

5:37 PM

He hasn't been in the room in the past 2 weeks

Erik the Outgolfer

yep

Phoenix

He has come here once, I think?

Mr. Xcoder

@Phoenix I don't think he came in the last 2 years :)

Phoenix

Although mods have ping-anyone powers.

Erik the Outgolfer

@Phoenix huh?

Arjun

5:38 PM

I wish I had at least 20k rep on any SE site.

Erik the Outgolfer

who doesn't?

but please make it 200k rep

Phoenix

@EriktheOutgolfer Mods can ping any user on the SE network, regardless of when they were last in the room.

Erik the Outgolfer

I can invite any user to any room I've joined though...

...even if it's not mine

Arjun

Then, maybe I should ping Dennis to ask him to ping Jon Skeet.

Phoenix

But you can't ping anyone.

Erik the Outgolfer

5:40 PM

I don't think mods can either...otherwise if Martin pings Dennis you don't want to know how many Dennis-es will be pinged

Arjun

Why not do it and see?

Mr. Xcoder

@HelkaHomba 52 bytes - Python: Try it online

Phoenix

Well, I've seen Dennis do it once, some long time ago, and I asked him about it.

Mr. Xcoder

Sure can be golfed a lot

Helka Homba

@EriktheOutgolfer Mods can indeed superping anyone I believe (with two @@'s iirc)

Erik the Outgolfer

5:42 PM

@@121917 does this work?

@@HelkaHomba does this? (i.e. do both the @s get highlighted?)

Mr. Xcoder

@@EriktheOutgolfer does this work?

Erik the Outgolfer

oh wait...nothing is highlighted

yet I was pinged

Arthur

@Lembik about to post your question...

Helka Homba

30

Q: What is a 'superping'?

I've seen the word 'superping' be used across SE meta sites. What does it mean? Is it just a synonym of the word 'ping' (ie. using @ followed by a user's name to give them a notification in their inbox).

Lembik

@Arthur go for it!

Mr. Xcoder

5:43 PM

Just ask Dennis or Martin :]

Okx

@HelkaHomba 05AB1E, 4 bytes: L¹×»

Erik the Outgolfer

@Arthur yay your first post

Helka Homba

@Okx way to tie that jelly!

Okx

@HelkaHomba is the output allowed to be a list

Helka Homba

ehh

Phoenix

5:44 PM

> Moderators can grant access to users < 5 rep to join chat, and superpings work for such users.

Helka Homba

no

Mr. Xcoder

No, that would be too easy

Phoenix

Cool!

Erik the Outgolfer

where does it say that???

Arjun

@EriktheOutgolfer I, once, saw TJ Crowder's post on an SO question. He had 318k rep at that time. I had only 307. I left a comment saying "You will have more rep than me even if k is removed from it" and cried (exaggeration).

Phoenix

5:44 PM

This means that if you have a chatbot, you can ask a mod to grant it access without needing to get rep on it first.

@EriktheOutgolfer The superping meta post linked above

In a comment

Arthur

@EriktheOutgolfer thanks!

totallyhuman

lambda n:[i*n for i in range(1,n+1)]

New Main Posts

0

Q: Fastest algorithm to take the product of all subsets

Given n numbers in an array (you can't assume they are integers), I would like to compute the product of all subsets of size n-1. You can do this by multiplying all the numbers together and then dividing by each one in turn, as long as none of the numbers is zero. However, how quickly can you ...

fastest-algorithm

Mr. Xcoder

@totallyhuman Cannot produce a list

Okx

@HelkaHomba Neim, 4 bytes: 𝐈𝕣_ with -n flag

Lembik

5:47 PM

@Arthur Beware the nitpickers :)

totallyhuman

@Mr.Xcoder why not?

Helka Homba

Off topic but is Martijn Pieters avatar from a show or something?

Mr. Xcoder

@Okx - "@HelkaHomba is the output allowed to be a list", @HelkaHomba: "no"

Okx

but the output isn't a list?

totallyhuman

Wait the backticks broke it

Mr. Xcoder

5:49 PM

No...

totallyhuman

Also yes it does output a list so nvm

Helka Homba

@totallyhuman that looks like a list, you'd need to join with newlines

totallyhuman

lambda n:'\n'.join(`i`*n for i in range(1,n+1))

Mr. Xcoder

@HelkaHomba In the language I am currently creating (Python-based), it would look like this: ƒ∞Æ):«†N+1)*Æ)

Okx

looks a bit long for me

Mr. Xcoder

5:54 PM

14 bytes with its own code-page, if I ever do one.

@Okx Problems with String conversion

If I fix them, It will be 5 characters

Ideally, it would look like this: ƒ«N*Æ

PhiNotPi

music I wrote last night/this morning: soundcloud.com/phinotpi/fjord2

Mr. Xcoder

@PhiNotPi Fantastic, it makes me cry (I'm not joking)

PhiNotPi

thanks, I think I still need to work on some of the transitions, and find a more conclusive ending

user165474

6:10 PM

@HelkaHomba Thanks for the CMC; reminded me to add a few functions into my language

Arjun

6:27 PM

@PhiNotPi Which software do you use for playing it?

PhiNotPi

Finale with (I think) Garritan instruments

Arjun

Isn't that paid?

PhiNotPi

Yes

user165474

6:40 PM

@HelkaHomba Anyfix, non competing: ""R«x«s€⁷«j»Y

Erik the Outgolfer

that looks too much like Jelly...

Leaky Nun

@totallyhuman lambda n:'\n'.join(`-~i`*n for i in range(n))

Mendeleev

@HelkaHomba Trying to figure out how to do this in Tomato

Erik the Outgolfer

@LeakyNun you don't need -~i, i+1 is more readable...

Leaky Nun

right

Erik the Outgolfer

6:52 PM

that's because you enclose in ``, a type of bracketing, so it has highest priority

Mendeleev

@HelkaHomba Ruby: ->i{i.times{|o|$><<(o+1).to_s*i+?\n}}

user165474

@EriktheOutgolfer lol a lot of it is identical to jelly though jelly is probably done better

Erik the Outgolfer

1 hour ago, by Erik the Outgolfer

@HelkaHomba Jelly, 4 bytes: ẋ€⁸Y

user165474

exactly :I

user165474

for example right now I need to do explicit R

user165474

6:55 PM

and it's stack-based so I need to duplicate TOS twice

user165474

but ¯\_(ツ)_/¯ each language has its own downfalls

Erik the Outgolfer

05AB1E has Ð i.e. triplicate

user165474

hm

Leaky Nun

So where did the TIO CMC feature request go?

user165474

brb copying that from 05ab1e

Leaky Nun

6:56 PM

@HelkaHomba Cheddar, 34 bytes: n->(1|>n).map(i->"%d"%i*n).asLines

Erik the Outgolfer

@HyperNeutrino basically duplicate twice

user165474

In my functions.py that would just be lambda x: splat([x, x, x], force = True)

user165474

I might also want to make a lambda x, y: splat([y] * x, force = True)

Erik the Outgolfer

ToS is x or y?

user165474

x

user165474

6:58 PM

so '_': lambda x, y: y - x

Erik the Outgolfer

then you should also do lambda x, y: splat([y, x, y], force = True)

user165474

Hm. As in, copy ToS-1 to top?

Erik the Outgolfer

basically ...y x -> ...y x y

user165474

Hm. Okay, I've added that; that looks like it might be useful.

Erik the Outgolfer

also you should do ...z -> ...[(ToS - z)'th item from top of stack]

e.g. a b c d e 2 -> a b c d e c

or 3 if 1-indexed

user165474

7:06 PM

Hm. Interesting. That would require something like lambda *a: [a[a[0]]] + a[1:] to access the entire stack.

user165474

And since it would also be useful to have a command to cut not copy, which would be lambda *a: [a[a[0]]] + a[1:a[0]] + a[a[0]+1:] or something

user165474

Also, 1-index or 0-index?

user165474

Nothing I've done so far has required me to consider that yet

Erik the Outgolfer

@HyperNeutrino like 05AB1E's @ huh?

user165474

actually I have... I've already done 1-index :P

user165474

7:08 PM

@EriktheOutgolfer yeah

Leaky Nun

@HyperNeutrino link?

user165474

@LeakyNun not yet implemented, i'll send you a link when I implement and test it

Erik the Outgolfer

GolfScript, 14 bytes: ~.,{)`1$*n}%\;

Nick Clifford

7:26 PM

Ohm, 4 bytes: @┼·á

feersum

Is there some reason I'm missing that this can't easily be done in 3n operations?

user165474

hm y it no work

user165474

oh wait it's because lambda *a: a gives a tuple

user165474

ಠ_ಠ

user165474

but the copy-not-cut still fails ಠ_ಠ

MD XF

7:35 PM

Ooh a Cubically quine might not be as difficult as it sounds

user165474

@MDXF why not?

MD XF

Because of how easy it is to print numbers. 3%45 is so close to a quine because it prints 3645

user165474

ooh i see

MD XF

Yeah, but it'll still be pretty hard to properly manipulate the numbers to get the required ASCII values

user165474

I see

MD XF

7:40 PM

Well, there goes 1k rep for me, unless I figure it out first :P

user165474

yup :P

MD XF

Heh this is technically a quine (see 'Debug')

user165474

ಠ_ಠ

user165474

76

Q: Make an error quine!

Your challenge: write a "program", for a language of your choice, that causes the compiler/interpreter/runtime to produce error output when compiling/running your program which is identical to your program's source code. Rules: Your program may be specific to a particular version or implementa...

popularity-contest quine

user165474

oh wait that's not an error

MD XF

7:43 PM

@HyperNeutrino Dibs

It follows all the rules

user165474

¯\_(ツ)_/¯ I wasn't going to anyway so go ahead :P

MD XF

0

A: Make an error quine!

Cubically, 94 bytes Notepad: 0 000 000 000 111222333444 111222333444 111222333444 555 555 555 Leading and trailing newline. (Cubically automatically dumps its memory to STDERR when the program finishes.) Try it online!

user165474

I count 92 bytes.

MD XF

> Leading and trailing newline

user165474

ಠ_ಠ to me

MD XF

7:50 PM

ಠ_ಠ to StackExchange not letting us put arbitrary newlines in code blocks

user165474

lol

user165474

@LeakyNun Ȥ (copy) and ȥ (move)

user165474

0/10 to me I had an unclosed bracket in my Readme

MD XF

@HyperNeutrino ಠ_ಠ after all the times you bugged me about it :P

user165474

lol and it took me like 15 commits to realize ಠ_ಠ

user165474

7:59 PM

:P

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