The Nineteenth Byte

Peter Taylor

19:00

@Mr.Xcoder Thanks

New Main Posts

0

Q: Construct a Permuter

For this challenge you are going to make a function (your function may be a complete program) that takes a list as input and returns a permutation of that list. Your function must obey the following requirements. It must be deterministic. Repeatedly applying your function to a particular list ...

Mr. Xcoder

I've been outgolfed >_>

Phoenix

Such is life.

Mr. Xcoder

@WheatWizard How do you define "deterministic"?

Wheat Wizard

@Mr.Xcoder The same input always give the same output. Unlike random deterministic is pretty well defined.

Mr. Xcoder

19:06

@WheatWizard But wouldn't "Repeatedly applying your function to a particular list should be capable of generating any permutation of that list." contradict "deterministic"?

Wheat Wizard

@Mr.Xcoder No they don't. It can output different things for different inputs, deterministic is different from constant

musicman523

@Mr.Xcoder He means applying the function again to the output of the function

Mr. Xcoder

@musicman523 Thanks.

Leaky Nun

@HyperNeutrino why don't you just use mine?

Phoenix

> sapply

I wish people who wrote function names didn't just tack an extra letter on.

At least make it sApply

Riker

19:15

@flawr

Leaky Nun

@Phoenix there's apply, lapply, sapply, tapply, lol

Riker

what lang is this?

Leaky Nun

@Riker R

Riker

@LeakyNun ah cool

Mr. Xcoder

@LeakyNun How many programming languages do you know?

I see you like R.

Leaky Nun

19:18

@Mr.Xcoder I just learnt R yesterday

Java, Python, Lua

Mr. Xcoder

You know Jelly, R, Java, Python, Lua, ...

Pyth

Phoenix

@LeakyNun What's the difference?

Leaky Nun

and then Pyth, Actually, Jelly, J, brainfuck, (sorry for putting J in this category)

Phoenix

@LeakyNun C?

Leaky Nun

@Phoenix I wouldn't say I know C

Mr. Xcoder

19:19

@LeakyNun Brainflak?

Golfscript?

Leaky Nun

@Phoenix some work for 2D lists, some are more complicated, some I won't ever use

Mr. Xcoder

05AB1E?

Leaky Nun

I don't really use it

Mr. Xcoder

I see it has been quite abandoned since Jelly has been improved.

Leaky Nun

I've never used it really much

TuxCopter

19:23

Firefox is somehow using 120% of CPU

Leaky Nun

@TuxCopter maybe you have 4 CPUs?

anyway, switch to chrome :p

TuxCopter

but firefox is great

and chrome uses even more memory than firefox which is already filling the main memory and swap

Phoenix

@TuxCopter It really isn't.

@TuxCopter Use zram

TuxCopter

@Phoenix zram?

Riker

the saddest phrase ever:

> Your new password cannot be your existing password

Leaky Nun

19:29

I've not been having any breakthrough in my R answer...

Riker

on a "forgot password" form

Erik the Outgolfer

@TuxCopter I assure you chrome is waaaay better

Poke

@Riker why is that the saddest

Erik the Outgolfer

basically if it says that then congrats you found your old password! just sign in without changing

Riker

@Poke I typed my password in 5 times, it was wrong every time

so I reset my password, and tried to make a new password

Erik the Outgolfer

19:32

well I guess you didn't need to :P

Poke

is your password exceptionally long

or does it contain a lot of symbols

perhaps the lessthan sign

Leaky Nun

@TuxCopter I started out using chrome some years ago, switched to firefox some years ago, and then switched back to chrome some months ago.

From my experience, I can definitely tell you that chrome is better.

TuxCopter

ok

DJMcMayhem

brain-flak CMC: What's the shortest stack safe snippet that pushes the truthiness of the TOS? (In other words, push 0 for 0, 1 for all else)

Peter Taylor

@Riker I once typed in a permutation of my PIN three times when trying to withdraw money from an ATM, so it locked my card. The next day I went into my bank to get it reset. They said they'd send me an SMS with my new PIN, but then discovered that I'd never done whatever process it is they have to confirm a phone number, so that option was off the table. Instead they said they'd send me a letter.

I ended up withdrawing some money on a foreign card, paying the charges, to make it through until the letter arrived. The letter told me that my PIN was exactly what it had been before.

DJMcMayhem

19:35

I can do 22, but I feel like it could be shorter

Riker

@PeterTaylor sigh

DJMcMayhem

Oh wait, I just way outgolfed myself

14

Riker

kek

DJMcMayhem

For reference, I originally had: (({})){(<{}{}(())>)}{}

Leaky Nun

CMC: I don't even know if this is possible: write some code to make + take precedence over *

Business Cat

19:38

Doesn't sound like it's possible

Leaky Nun

@BusinessCat I don't know enough language to make that statement.

Business Cat

It may be, but I wouldn't know what language

Riker

@LeakyNun I feel like this is possible in R and maybe emmental

and that's it

Erik the Outgolfer

@LeakyNun python? 100% impossible

Leaky Nun

@Riker no I'm not going to do it in R

Riker

19:40

@EriktheOutgolfer solution: do'nt use python

Erik the Outgolfer

jelly? there's no thing as precedence

Business Cat

Emmental is stack based so no precedence

Leaky Nun

It seems you can't set precedence in R

Phoenix

@TuxCopter zram is inmemory compression.

Basically you get more ram for free.

Riker

@BusinessCat true

I was thinking operator redefinition

Leaky Nun

19:47

R has a function is.R() which tests if we are using R

(rather than S)

Riker

kek

New Main Posts

1

Q: Literate Anti-Quine

Disclaimer: I don't know whether this has any solutions I am defining a literate anti-quine to be a program (or function) that takes a file or string as input, and returns a boolean (which can be represented by an integer or bit as well) result according to the following rule: True (or 1) if...

code-golf quine

DJMcMayhem

I was seconds away from hammering that

Leaky Nun

well, R has 1328 built-ins...

builtins() lists all built-ins

Business Cat

Well since we're allowing newer languages I might as well put my CJam answer on the old version

Mr. Xcoder

19:54

@LeakyNun Does it beat Mathematica?

Peter Taylor

I'm amazed that there's still no Jelly or Pyth answer to my combinatorics question.

Leaky Nun

@PeterTaylor which?

Mr. Xcoder

@LeakyNun Ah, ninja'd

Leaky Nun

Jun 27 at 13:12, by Leaky Nun

yesterday, by Leaky Nun

2 days ago, by HyperNeutrino

2 hours ago, by Erik the Outgolfer

please, "ninja'd" should be restricted to when you actually post the message a split second later than somebody else posting the same message, and then you are the one who is ninja'd

Peter Taylor

23

Q: Trigger the chutes and protect the jackpot

You are going to participate in a gameshow. One of the challenges works as follows: The first room contains a large number of identical balls. The second room contains a series of chutes, each of which has a sensor which counts how many balls have been placed in it. A ball which is placed in a ...

code-golf optimization

New Main Posts

20:04

0

Q: Oblique projection of a cube

Your task is to print a cube in oblique projection, given it's side length. Here's an example: /-\ / \ |\ /| | \ / | \ | / \|/ For the uppermost corner you must use the dash. As you can see, all sides are equal in length (when measured in characters). This is code-golf, so the short...

code-golf ascii-art

0

Q: Have I had lunch yet?

You love lunch. However, you are on a diet and want to make sure you don't accidentally eat lunch twice in one day. So you need to make a program to help you make sure. However, one complication is that you eat lunch on a very weird schedule. The time you eat lunch at is MONTH:DAY PM. That's rig...

code-golf date

Leaky Nun

CMC: which in R: return the indices of the array where the corresponding element is true

dzaima

20:21

I need to add diagonal drawing in SOGL..

Mr. Xcoder

@dzaima For the cube challenge?

(I mean, has that inspired you?)

dzaima

@Mr.Xcoder It'd be useful for many challenges, but yeah, that remined me

totallyhuman

the guy who made requests (subtitle: HTTP for humans) made legit (subtitle: git for humans)

and we are seriously in need of git for humans

TuxCopter

wait but I'm a penguin and I use requests

Business Cat

What about git for cats?

totallyhuman

20:25

well, i, for one, am particularly happy about products for humans

because i'm human

so it works out

Mr. Xcoder

@totallyhuman totally....

totallyhuman

yes

absolutely completely totally definitely human

totallyhuman

21:03

sign off every stack overflow question with "plz send teh codez"

it's worth it

also do the same for ppcg

flawr

21:24

@Riker so that is how the ivy-texture is added to the house-model!

Downgoat

21:36

@totallyhuman are you talking about the python 'requests' package?

Riker

@flawr exactly! :p

totallyhuman

@Downgoat yes

Downgoat

ಠ_ಠ python HTTP is for sheep not human

totallyhuman

probably 'cause you're used to JS :P

Dennis

21:52

@Downgoat What about Python WebSockets?

totallyhuman

and requests is pretty awesome

i wrote a bot library for another chat service with websockets; wasn't bad

Laikoni

22:09

@LeakyNun Standard ML, 9 bytes: infix 5*;

Phoenix

@totallyhuman THANK YOU SO MUCH

I just installed Python just for that.

totallyhuman

is it good? i want a better git client but i don't want a gui one ><>

Phoenix

Certaintly very handy.

flawr

@Riker captchaart

totallyhuman

tfw it errors out

legit. A Kenneth Reitz Project

Usage: legit <command>

Commands:

Traceback (most recent call last):
  File "/usr/local/bin/legit", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.4/dist-packages/legit/cli.py", line 52, in main
    display_help()
  File "/usr/local/lib/python3.4/dist-packages/legit/cli.py", line 443, in display_help
    display_info()
  File "/usr/local/lib/python3.4/dist-packages/legit/cli.py", line 425, in display_info
    for command in sort_with_similarity(commands, key=lambda x:x.name):

Phoenix

22:14

@totallyhuman Uhh... what command did you type?

totallyhuman

legit --help

wait

it might be cause i'm not in a repo

nope

Phoenix

I think you should reinstall legit.

totallyhuman

mm doing that rn

wait a minute

is it only for windows

oh i used python2 and it worked

weird, it does say they added python3 support

Phoenix

I only have python3

totallyhuman

weird

orlp

22:31

an interesting experiment

if I were to write a program that fills 4 gigabytes of ram with zero bytes

and that repeatedly loops over the memory until it finds a byte that is non-zero

how long would this program run?

assuming I have non-ECC memory

Peter Taylor

22:47

@Dennis, if you're waiting until I've seen your comment before deleting the permuter answer, I've seen the comment.

New Main Posts

-1

Q: Prankster Santa

It is widely known that Santa Claus delivers presents to houses all over the world in December. However, not many people know what he does during the rest of the year. You see, Santa enjoys a jolly good prank, and he'll often find himself pranking entire cities when he's not busy making or delive...

code-golf math

orlp

@PeterTaylor that reminds me, I was going to answer that question...

@PeterTaylor oh it seems dennis and you already posted the answer I was going for :(

why does @Dennis have to delete his answer though?

Challenger5

Any ideas on golfing this check program? I don't like the huge space on the first line but I can't think of any way to get rid of it without adding more bytes :(

Dennis

@PeterTaylor OK, thanks.

@orlp A new rule requires distinct objects with at least 16 possible values.

orlp

@Dennis oh IIRC there was a comment saying booleans was ok...

HyperNeutrino

22:53

It seems like most people are just doing sort -> all permutations -> get next one

@Challenger5 Can Check programs be rotated?

You might be able to eliminate the spaces by rotating them to the end, but that might create more bytes with the newlines

as in rather than this:

a    b
cdefgh

do this:

ca
d
e
f
g
hb

though you would need to redirect the pointer direction, so I'm not sure if that would actually work.

Challenger5

Well that would break the semantics of the 1D part of it...

Dennis

@orlp Booleans were OK, but not 1's and 0's...

HyperNeutrino

oh ok

orlp

@Dennis huh?

HyperNeutrino

ok paintbrush isn't working out because it gets #rekt by charcoal too hard

Dennis

22:57

I tried to argue in favor of 1's and 0's, but that just got Booleans banned as well. >_<

HyperNeutrino

I need ideas for another area that doesn't have a golfing language specializing in it :P

or I can just stop making new languages :P

Dennis

Or improve the ones you already have.

HyperNeutrino

true

Challenger5

Oh, I just found something

HyperNeutrino

let's see; the idea for anyfix was interesting but not practical since it involved way too many stack copy algorithms

Challenger5

22:59

I don't need to divide by 2 because $ is integer division

HyperNeutrino

wait I remember an idea I had for a general programming language that might end up working better than anyfix

But wait, Positron technically works; it has its bugs, but those only show when I try abusing them for code golfing and they end up breaking.

I think I might be able to continue work on Positron. Not Paintbrush though, because Charcoal exists already :P

orlp

@Dennis I think the 'must be able to handle duplicates' is also a real pain in the ass for this question

there are really interesting algorithms but they're not short at all

HyperNeutrino

ono my daily reputation today is -40, must go get some rep so it's at least 0 :o

Downgoat

5

A: Put together a Senate majority

;#, 28571 bytes ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;...

._____. why does this have 5 upvote

am I missing something or is it just manually incrementing each ascii value and outputting it

Challenger5

That's pretty much the only thing you can do in ;#

That's about as low-effort as you can get (well, maybe /// would be easier)

But at least in /// you might be able to do some golfing (not much, but some)

HyperNeutrino

23:12

well you can get lower effort

just find 51 names and do a straightforward output in Bash

like the one with 9 upvotes did ._____.

Downgoat

I think someone already did that answer

Challenger5

Well FGITW, I guess
That was the first answer (I think; I'm too lazy to check)

Downgoat

opls they didn't even put any effort they could output to a file

HyperNeutrino

> like the one with 9 upvotes did

Downgoat

Question: what is most polite way to ask someone if they want to keep IP of software you want to capitalize on and not get sued if you do it anyway when they say no

Challenger5

23:15

Alright, I take back what I said about it being the most low-effort you could get, but it's still pretty low-effort

@Downgoat Don't ask the person, just notify them

"Hey, I'd just like to let you know I'm using your stuff. Thanks!"

Downgoat

feature-request: Opposite of bounty, allow yourself to give up your own rep to take it away from someone else

7

HyperNeutrino

.______.

Challenger5

No, how about you can take away other people's rep to add to your own?

HyperNeutrino

so like I take 50 rep off myself and essentially downgoat you 5 times

Challenger5

Like a negative value bounty

Downgoat

23:16

@HyperNeutrino :O you posted emoticon only message. I see you like living life on the edge :P

HyperNeutrino

which I could already do at a cost of 5 votes

Downgoat

yea but you can't do on same answer

HyperNeutrino

@Downgoat hm? oh you're referring to the risk of getting kicked?

@Downgoat feature-request Allow you to vote multiple times on an answer at a cost of removing 10 more rep for each extra vote

Challenger5

I think that's abuse because spam accounts could do a lot of damage that way

HyperNeutrino

ik

was just joke (just like the other feat-request (I HOPE))

otherwise Dennis could theoretically just go around and nuke everyone

Challenger5

23:18

Well I didn't mean that comment in a negative way
I love spambots!

HyperNeutrino

he could nuke me around 20 times ._______.

> abuse

is not negative totally

Challenger5

We're on PPCG, don't we abuse things (namely languages) for fun?

HyperNeutrino

not people at least (i hope)

but we abuse bugs, glitches, and languages ~~and sh**p~~

Downgoat

@Challenger5 only if you are high-rep user or mod. Otherwise you get downvoted

HyperNeutrino

anyway brb

Challenger5

23:21

@HyperNeutrino We're not abusing people, we're abusing accounts. If a user can't separate their own life from their internet points, that's their problem

Downgoat

:O @Mendeleev's giant duck is on sale for $140K

Phoenix

Cool

Challenger5

Canadian or American?

Phoenix

It still comes out to around the same amount.

Challenger5

I was referring to the duck.

Phoenix

23:23

o

Challenger5

Wow when I corrected that spelling error it said I had 8 seconds left

Phoenix

Someone needs to create a Windows python installer that automatically configures PATH, keeps your python up to date, then modifies PATH when a new major version comes out.

Because the python path is e.g. C:\Program Files\Python36, so when 3.7 comes out, everyone will need to update their path.

Bonus points for also keeping track of C:\Program Files\Python3x\Scripts so that pip stays in your path as well.

totallyhuman

Another good idea: give up on Windows

2

Phoenix

I can't tho

Challenger5

Isn't that what package managers are for?

Phoenix

23:35

I need Windows for an internship I'm doing

Challenger5

You want to be an intern at a company that uses Windows?
jk

Phoenix

@Challenger5 Even if I could keep python autoupdated, the issue is that the binary isn't put anywhere that's in the PATH by default.

A package manager wouldn't help there.

Challenger5

I see.

Phoenix

On Linux, however, the Python binary is put into /usr/bin, which is in PATH by default, without this Python36 nonsense.

HyperNeutrino

23:51

@Challenger5 hey are you accusing me of things? (:P /s)

Challenger5

@HyperNeutrino That wasn't my intention, but now you seem suspiciously defensive... </j>

HyperNeutrino

I mean, I totally don't associate internet points with my entire ~~life~~ (wait I don't have one)

Challenger5

So say you had a dict (aka association list)

HyperNeutrino

.----.

Challenger5

and you meant to have "se_rep": life

but then you realized life was not defined

so you changed it to a set (nothing to associate with)

Bad joke, I know

HyperNeutrino

23:58

why

just why :P

but what if the set is part of a group

and the group is abelian

then it associates :P (well actually, technically, only the operator, but shhh close enough)

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