The Nineteenth Byte

Mr. Xcoder

20:00

@DJMcMayhem Uhmm, barely

Luis Mendo

@J.Salle earthworms I meant, yes. One tends to think they would be related, having so similar shapes...

DJMcMayhem

@Mr.Xcoder STDIN, any whitespace seperator

J. Salle

@LuisMendo hahah perhaps, but snakes are vertebrates.

Erik the Outgolfer

@DJMcMayhem I'd say preferably newline-separated

DJMcMayhem

Yes, that is preferable so that input/output formats match, but either one is accepted by the interpreter

Thomas Ward

20:01

@Mr.Xcoder Well... I have a solution, but it's... painful.

Erik the Outgolfer

or because that's how you do input in other languages

Thomas Ward

80 bytes.

DJMcMayhem

@Mr.Xcoder Wait, a second it isn't technically STDIN. Are you using local or TIO?

Mr. Xcoder

@ThomasWard I can help you with it. Sure post it.

@DJMcMayhem tio.

Thomas Ward

import sys,json;j=json.loads(sys.argv[1]);k=[j-i for i, j in zip(j[:-1], j[1:])] [TIO‌\

DJMcMayhem

20:02

@Mr.Xcoder OK, then for all intensive porpoises, it's STDIN

Anonymous

@ThomasWard What in the world? Why are you using JSON?

Thomas Ward

@Mego loads = loads from string.

HyperNeutrino

@ThomasWard you can just write is as a function

Erik the Outgolfer

@ThomasWard ...json?

HyperNeutrino

also, eval

Thomas Ward

20:03

eval didn't work right for me

Anonymous

Write it as a function, use eval, use ast.literal_eval...

HyperNeutrino

but also, the actual part that does the zip is actually (almost) correct :) (you can remove two bytes of whitespace)

Also, zip automatically truncates lists that are too long, so just do zip(j,j[1:])

Erik the Outgolfer

but that storing in k isn't correct

Mr. Xcoder

@ThomasWard First off: lambda j:[j-i for i, j in zip(j[:-1], j[1:])]

HyperNeutrino

^

Mr. Xcoder

20:04

Then, please remove the whitespace.

HyperNeutrino

Proton barely wins against Python: x=>[j-i for((i,j),):zip(x,x[1to])]

Erik the Outgolfer

(yeah you can learn them by heart they're just 8)

HyperNeutrino

yes :P

Adám

@EriktheOutgolfer It is, my current contract with Dyalog requires me to golf.

HyperNeutrino

I remember the monads but not the nilads

Thomas Ward

20:07

@Mr.Xcoder Nice, but I got that down a little too, 38 bytes: lambda j:[j-i for i,j in zip(j,j[1:])] (TIO)

Mr. Xcoder

@ThomasWard Perfect! This is the shortest non-built-in solution! Congrats.

Erik the Outgolfer

@ThomasWard optimal

Thomas Ward

@Mr.Xcoder thanks! I know I'm new to golfing, but thank you for all the assistance and teaching :)

i think like a programmer, not a code golfer, by default xD

Erik the Outgolfer

code golf isn't just shortening code, it's a way of thinking

Thomas Ward

indeed.

I need to reprogram my mind :)

Mr. Xcoder

20:09

@EriktheOutgolfer False. It's a way of living.

Rainbolt

thinking... about how to shorten code

Adám

@J.Salle Didn't you mean this?

2 hours ago, by Mr. Xcoder

CMC: Given two non-empty lists of integers A and B, return the deduplicated elements that appear at the same index in both A and B

Mr. Xcoder

:P

J. Salle

@Adám yup. I can't edit the message anymore though

Erik the Outgolfer

@Mr.Xcoder I'd have said that, but if your only life is code golf then something is wrong

3

no offense

Rainbolt

20:10

Proof: You can spend five hours thinking about a 58 byte Python answer, and someone else can spend 1 hour thinking about a 57 byte Python answer. The other guy still wins, even though you thought more.

Erik the Outgolfer

@Rainbolt not the case for me

I'm thinking in a way that tries to optimize almost everything

Thomas Ward

there's a third stack room? hacks links

HyperNeutrino

I have 36 bytes with taking the list reversed.

trichoplax

@EriktheOutgolfer Good point - fastest-code, code-challenge & king-of-the-hill are important too

HyperNeutrino

(Brain-Flak)

DJMcMayhem

20:11

→ 26 messages moved to The Third Stack

Erik the Outgolfer

@DJMcMayhem thanks

DJMcMayhem

np

Luis Mendo

@Adám MATL, 4 bytes: y=)u

DJMcMayhem

@HyperNeutrino I can't remember what my solution is lol

Erik the Outgolfer

it seems like one message doesn't belong there though :p

HyperNeutrino

20:12

@DJMcMayhem oh lol :P

Adám

@J.Salle You can just do ∪⊢(/⍨)=

HyperNeutrino

You moved my Proton message :( :PPP

DJMcMayhem

← 1 message moved from The Third Stack

@HyperNeutrino What are you talking about...

HyperNeutrino

lol

Thomas Ward

heh

DJMcMayhem

20:13

@HyperNeutrino Same

HyperNeutrino

cool :D

Erik the Outgolfer

@DJMcMayhem well :p

J. Salle

@Adám I tried using ∪ for a while but I couldn't figure it out. Also I don't think I learned what / does on it's own

HyperNeutrino

MD5 of mine is 6ccf331f881abb753837517baf35f99c

@EriktheOutgolfer shush that's fake news :P

Adám

@J.Salle ⍺/⍵ replicates each element in ⍵ as many times as indicated by the corresponding element in ⍺. If ⍺ is Boolean, it is a simple filter.

J. Salle

20:16

@Adám oh, okay. Sounds way easier than I thought

Adám

@J.Salle A more obvious solution is {∪(⍺=⍵)/⍺}.

Thomas Ward

@Mr.Xcoder I hope you don't mind me trying these CMCs. (Remind me what CMC means again? I'm not fluent on PPCG acronyms other than PPCG xD)

HyperNeutrino

Chat Mini Challenge

J. Salle

@Adám I've been trying for a while now to iterate over a list. Can't seem to figure it out. Also we should probably move to APL? :p

Mr. Xcoder

@ThomasWard Of course I do not mind, I love it :-)

Adám

20:18

27

Q: What are the PPCG specific abbreviations and terms?

Newcomers to PPCG are often compelled to ask what many of our abbreviations and terms mean. Let us list them here so this information always will be easily available.

Thomas Ward

@HyperNeutrino ah, thanks . I see that meta post too :)

HyperNeutrino

np :P

aditsu

sigh, giving up on chat search.. maybe the conversation was actually on irc

HyperNeutrino

CMP: To what (chat) names do you respond (in chat)?

aditsu

what's a CMP?

Adám

20:25

@aditsu Chat Mini Poll.

@aditsu See above linked meta post.

trichoplax

Any that ping me

HyperNeutrino

lol

AdmBorkBork

@HyperNeutrino I still respond to TimmyD, but mainly Adm or Bork. I respond to Bork in real life, too.

HyperNeutrino

lol :P

I'd probably respond to "hyper" in real life, idk

nobody's called me that :P

mınxomaτ

To be fair, that question was really ambiguous.

aditsu

20:26

ahh

betseg

can you check if my js works correctly on my site

Adám

@HyperNeutrino Uh, how would I know someone addressed me if it didn't ping me?

HyperNeutrino

Assuming you're active in chat

like if someone said "hey hyper" I would respond to that if I saw it

trichoplax

In that case, I've also responded to "turtle" in the past

HyperNeutrino

huh interesting :P

betseg

20:28

why a neutrino's avatar is a benzene

Luis Mendo

People changing names is so confusing. At least make them anagrams

HyperNeutrino

good question. I don't think you're the first to ask either :P

Adám

@HyperNeutrino I guess Adám and Adam then. I'd be surprised if I saw NBZ.

HyperNeutrino

huh ok

(no idea what NBZ is lol)

betseg

Nineteenth ByteZ

HyperNeutrino

20:29

lol

aditsu

I don't think anybody would call me anything other than "aditsu" in here

HyperNeutrino

I think other than my initial name being Alex L, I haven't changed my name since (except once when I changed it to fancy chars for 2 minutes and then was notified that Dennis disapproves so I changed it back :P)

aditsu

unless they're being snarky or something :p

HyperNeutrino

:P

Adám

@HyperNeutrino That was my original SE username, long before I came to PPCG.

HyperNeutrino

20:29

ah ok

hi NBZ

quartata

Recently found out Gulp depends on this gem: github.com/ljharb/is-object

apparently we have learned nothing from leftpad

6 fucking lines

aditsu

@Adám btw, I liked Denmark :)

Adám

@HyperNeutrino I changed name.

HyperNeutrino

:P

Adám

@aditsu Wait, what‽ Is Denmark gone‽‽‽

HyperNeutrino

20:32

@quartata is it just me or is that 5

quartata

even worse

I miscounted

aditsu

@Adám no, i'm gone (from it)

quartata

let's see what's shorter

betseg

i was alpha decaying for a while

quartata

typeof x === 'object' && x !== null; vs require("is-object").isObject(x);

HyperNeutrino

20:33

lol

quartata

ok it's 4 characters shorter

so worth it

trichoplax

Hides sharp edge cases for safety

HyperNeutrino

...sure :P

quartata

@trichoplax The former is literally the same code the module uses

keep in mind Gulp is something used in real world NodeJS production

it is presumably written by people who are good at programming

and so they are capable of putting the former statement in their own helper if necessary

trichoplax

@quartata I'm joking - avoiding the risky mental effort of being aware of the edge case x === null

quartata

20:36

ah yes, risky indeed

HyperNeutrino

when is a thing not an object ._.

quartata

if it's a primitive

HyperNeutrino

oh

trichoplax

More seriously, isn't Gulp intended to help perform mundane tasks so you don't have to think about them? Checking for null seems like a mundane thing it might be nice to forget about...

quartata

I actually think leftpad was longer than this

trichoplax

20:41

TIL JS can do tail call optimisation (but only in strict mode)

Adám

@trichoplax APL always does.

Anonymous

@HyperNeutrino Mego and Punguin

HyperNeutrino

why punguin? do you make a lot of puns?

anyway gtg o/

Anonymous

@HyperNeutrino Yes

HyperNeutrino

ah ok :P

betseg

20:48

thats so cool

trichoplax

@Adám It doesn't surprise me in a real language ;)

betseg

java doesnt have it :P

trichoplax

...

HyperNeutrino

nvm back now

quartata

needs spam flags (NOT delete votes please)

betseg

20:52

deleted by community

Pavel

21:03

@betseg the CLR supports it but C# didn't use it.

F# does, probably.

Riker

@betseg that's what spam flags do

@quartata huh, first spam in a while

betseg

i know

i was informing people

Riker

ah ok

sorry

ATaco

When I got the ability to hammer edits the only thing I wanted was the ability to not

HyperNeutrino

lol why?

Riker

21:06

if it's just stylistic sometimes OP or others should get a say

HyperNeutrino

hm makes sense

ATaco

I didn’t trust myself with them, I’d prefer peer reviw

Gosh darn phone... -.-

Riker

@HyperNeutrino moved to nethack chat

@quartata dnh OP plz nerf

quartata

I replied before you moved the messages

Riker

yep I saw

DJMcMayhem

21:12

in The Third Stack, 37 secs ago, by DJMcMayhem

Brain-flak just passed 50 stars on github for the first time! \o/ \o/

HyperNeutrino

\o/

Riker

yay :D

HyperNeutrino

let's hope it's the last time it passes 50 stars lol

3

Anonymous

@DJMcMayhem Congrats! Also I didn't even realize Seriously/Actually also had >50 stars :P

betseg

@HyperNeutrino thought the same thing lol

HyperNeutrino

21:15

:P

ATaco

My most starred content is my userscript at 15 stars

DJMcMayhem

15 stares?

ATaco

Thanks autocorrect

Pavel

@Dennis your solution codegolf.stackexchange.com/a/146431/60042 is recursive but doesn't include f=

flawr

@Riker GREAT POST ON HISTORY.SE

8

Riker

21:24

@flawr YES

ATaco

Beautiful use of typography to help convay a topic

Also, whilst reading it my inner voice is shouting nomatter how hard I try to avoid it

I had a similar issue whilst reading homestuck

mınxomaτ

→ 8 messages moved to Trash

→ 1 message moved to trash

Pavel

@mınxomaτ I like how you used two different trashes there.

HyperNeutrino

-1 lines by trashing the trashes

anyway gtg o/

mınxomaτ

@HyperNeutrino Actually, that doesn't work.

Mistah Figgins

21:37

why not?

mınxomaτ

These messages are ignored by a move.

Mistah Figgins

huh

Pavel

So it would produce a "moved to trash" message while doing nothing?

flawr

@mınxomaτ what is the difference between these trashes?

mınxomaτ

@Pavel Only if at least one normal message was moved.

Riker

21:39

@flawr ankit sharma couldn't find the normal trash so he made one

mınxomaτ

@flawr Users don't get invited to trash for one of them.

Riker

movies mod

Adám

Visualising sorting algorithms

Mistah Figgins

> Trash

> trash

@Adám Oh yeah, This is cool

It would be interesting to see the sorting organized by best case scenario to least within each sort, so, say, the top row gets sorted first, followed by the second, etc, until the bottom row gets sorted last

Anonymous

21:57

@flawr The uppercase Trash room is a gallery room. It's the original Trash room that ROs use. It was made into a gallery because 1) people took it as an invitation to spam nonsense there, and 2) people were complaining about getting invites when their messages were trashed. For a few days, non-mod ROs couldn't move messages there because we didn't have write access, so trash (lowercase) was made as a temporary solution.

ATaco

I quite enjoy jumping in the sandbox to see what kind of nonsense is there.

A big problem I have in regards to writing Funky is avoiding making it Esoteric, but at the same time I Really want to add a bunch of things to make it golfier.

Uriel

does anybody have some "crossed out 44" link to link to?

ASCII-only

22:12

@anyone help i still need a character for filter

Riley

@Uriel Here's one from June

Adám

@Uriel 44

19 secs ago, by Adám

@Uriel 44

Uriel

@Riley thanks

ASCII-only

@Riley newer @Uriel

Riley

@ASCII-only @Uriel September 11

ASCII-only

22:16

@Riley yeah but no link so it doesn't count

Adám

CMQ: Do most [tag-code-golf] byte counts have 1 as first digit?

Riley

@ASCII-only True. Didn't look at that.

Uriel

@Riley no link ;(

Riker

@Adám likely

it's like that thing about tax returns or smth

1 is the most common number

Uriel

@Riley already used the previous

ASCII-only

22:18

Benford's law?

Benford's law

Benford's law, also called the first-digit law, is an observation about the frequency distribution of leading digits in many real-life sets of numerical data. The law states that in many naturally occurring collections of numbers, the leading significant digit is likely to be small. For example, in sets that obey the law, the number 1 appears as the most significant digit about 30% of the time, while 9 appears as the most significant digit less than 5% of the time. By contrast, if the digits were distributed uniformly, they would each occur about 11.1% of the time. Benford's law also makes ...

Riker

yep that

Adám

@Riker Hm, I wrote "most". Probably 1 is the most common leading digit. How about "most"?

Riker

8 I'd say

ASCII-only

@Riker what

Adám

I was thinking that it is very common for golfing langs to have 10-19 byte solutions.

Riker

22:21

7-11 seems to be around the point where most good challenges end up with a jelly answer

Uriel

@Riley oo it has a comment-bent link codegolf.stackexchange.com/a/123404/65326 quite dangerous :P

HyperNeutrino

@Riley codegolf.stackexchange.com/a/48101/68942 unfortunately this chain ends here

Riker

at least, that's what I've seen

ASCII-only

@Adám and 100-199 to a lesser extent :P

Riker

or just 1, cuz of all the 10-19 byte ones yea

ATaco

22:22

I'd assume 1 has the highest rate, due to a combination of 1 byte answers and 1xx byte answers.

Uriel

@HyperNeutrino yea, that's the origin to all

Adám

@ASCII-only That's for all the non-golfing langs.

HyperNeutrino

oh rly? lol

oh right that's why it has so many upvotes

Riker

yep

Uriel

@HyperNeutrino someone needs to write a crawler to map 'em all

HyperNeutrino

22:23

yep :P

ATaco

Anything higher than 2 is less likely, because 300+ answers are a lot less likely.

HyperNeutrino

someone needs to start a thingy where every time someone links a crossed-out-44, it maps that as the most recent so you can build the longest chain possible

probably scrape recent-posts like Smokey does

Uriel

@HyperNeutrino nooo! it's the most fun when you don't know what end is it

HyperNeutrino

oh :P

Uriel

even if you map them out it would keep looking like some weird pattern

ASCII-only

22:25

@HyperNeutrino that's what people do isn't it

HyperNeutrino

I don't think so :P but idk

Riker

@HyperNeutrino iirc there's a reddit bot like that

for the switcheroo thing

HyperNeutrino

oh lol :P

ATaco

The amount of answers starting with a particular digit in the byte count.

HyperNeutrino

huh cool

Uriel

22:32

@ATaco 0: 5369 ಠ_ಠ

caird coinheringaahing

@ATaco How are there that many 0s???

ASCII-only

@ATaco for some reason i don't believe this

ATaco

The data is likely skewed by the method of searching, as it's just looking for a space followed by the digit, then the word "byte" somewhere later.

I'm assuming this is acceptable noise, however.

HyperNeutrino

You are avoiding counting striked numbers, right?

ATaco

Nope, this query was very simple, just to get an idea of the numbers.

HyperNeutrino

22:42

ok

actually the way you're searching it, if you're scraping raw MD data then it will avoid striked numbers :P

ASCII-only

@anyone does Charcoal need a grid builtin like Jelly does

ASCII-only

22:57

@Neil yay Charcoal has more things now

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