The Nineteenth Byte

3:01 PM

I don't think there's a "verdict" per se, but I don't see any reason to not allow it, assuming you are a good sport about it

For example, adding built-ins shouldn't be done

betseg

TIL Vi is 40 years old.

Nathan Merrill

changing a language based on the sandbox is a bad idea. Writing an answer is good/bad based on who you ask. Some people don't like it because of the FGITW effect

DJMcMayhem

On the other hand, it's actually a good thing because it makes you aware of potential issues in the challenge, so it can be great for giving solid feedback

^^ Agreed, I would consider FGITW-ing it not being a good sport

Jonathan Allan

"So in this G=1 unit system you're thinking of, mass is measured in cubic meters per second per second. Weird, huh? Well, that's why we use kilograms in the real world." physics.stackexchange.com/questions/36375/…

Geobits

@Poke I just finished golfing a Java answer to Mego's sandboxed challenge, so I might be biased :P

Got it under 100 :D

Yodle

3:04 PM

I think he just meant working on an answer before the challenge is posted to main, which I'm pretty sure is fine

Shebang

Yeah, I personally don't see an issue with working on a challenge in the Sandbox

DJMcMayhem

@betseg I know, it's ancient. The interesting thing is how many knock-offs and clones there are. off the top of my head, there's ex, vi, vim, neovim, stevie, and a bunch of others

Elvis, nvi, vile...

Shebang

When did TimmyD become a unit?

betseg

About an hour ago.

Nathan Merrill

nah, its a fundamental unit. We just discovered it an hour ago

Yodle

3:09 PM

Speaking of old things, in my OS class we were doing presentations on old operating systems, like features and whatnot. I managed to find a download for ours and while snooping around I found a folder for python 1.2 or something and was like huh, that's interesting. Turns out Python was originally developed on/for the OS we randomly chose: en.wikipedia.org/wiki/Amoeba_(operating_system)

Poke

@Geobits crap i was doing the same thing

Yodle

is yours under 100

Poke

the function is 80 bytes

currently

Yodle

well now we have a competition

Geobits

I'm at 95 right now, but I'm thinking I can get it significantly shorter if I can figure this one lil thing out.

Shebang

3:13 PM

A Java answer under 100 bytes? I'm impressed ;)

betseg

Which challenge?

Shebang

3

A: Sandbox for Proposed Challenges

Binary Countdown Length inspired by Count down from infinity Given a positive integer N, output the number of repetitions of the following steps it takes to reach 0: Convert N to binary (4812390 -> 10010010110111001100110) Flip each bit (10010010110111001100110 -> 01101101001000110011001) Tri...

Poke

I had a bug... Fixed it at the cost of a byte

Geobits

Thought I had a way to do it with a simple split, but it's not working right :(

Poke

Are you supporting long

Geobits

3:25 PM

Yeah

mainly for the shorter conversion to binary string

Poke

I was as well

yup

My original solution was to count the number of times the string switched from 0 to 1 or vice versa but there's too much java for that solution to be short

Geobits

Ohhhh I got it

Lemme see how short I can get this.

Fatalize

@Poke Usually for some challenges in the sandbox if they are not too complicated I write a program, usually not very golfed that I can use to find flaws in the challenge. But I don't reuse that when the challenge gets posted.

Geobits

Yeah, I was doing the same, but couldn't get it right.

Conor O'Brien

:o ascii-art downvote button

Poke

3:29 PM

@Fatalize We may be past that at this point >.> oops

Geobits

@Poke Finally got it down to 65 :D

Poke

also realized i was counting the static keyword which isn't necessary if the submission is just a function

Geobits

Yeah, no static

Had to get rid of long support to get it that low though.

Hmm. Actually, it's exactly the same with long and int :/

Wait no, 64 with long.

feersum

You guys' byte counts seemed high... I get 44

Geobits

in Java?

feersum

3:34 PM

yes

Geobits

Huh. What are you doing to the thing?

feersum

And real funciton, not lambda.

Geobits

Yeah, no lambda here

I could get it about that low by taking input as a binary string, but other than that I'm not sure how.

feersum

I also take long.

Geobits

Hmm... are you even converting it to a string? That part alone gets me to 38 bytes...

Oooooh wait let me play with this...

feersum

3:39 PM

43 now.

Geobits

Bah. My mathy idea came out at 69 instead :/

Fatalize

@Geobits This avatar is so confusing

feersum

Isn't there a site where the button actually looks like that?

Morgan Thrapp

Is returning a generator in Python valid? It would mean you would have to do print(*f()) instead of print(f()) when calling it.

Shebang

@feersum I thought my 54-byte Python solution was decent :/ I can't let myself be beaten by Java!

feersum

3:53 PM

It's 30 in Python

Shebang

._.

I assume at no point you are doing any math?

I should rephrase

feersum

What is math?

Shebang

I assume you are not doing any XORing?

El'endia Starman

→ 6 messages moved to Trash

Kritixi Lithos

I have been invited to join Trash, but I'm already a member of the Trash chatroom ;)

El'endia Starman

3:58 PM

Let me say it more directly, then: stop posting stupid stuff. At least, post it somewhere other than TNB.

Poke

Oh i think I see what you're doing, @Geobits

forgot split could take a regex

Geobits

Oh, yeah, my 64 is a regex.

Shebang

If there's a 30 byte Python solution I may as well give the 54-byte version

f=lambda n,c=0:f(n^2**n.bit_length()-1,c+1)if n else c

Of course there's a regex solution!

Geobits

I've got:

long g(Long n){return n.toString(n,2).split("0+").length*2-n%2;}

I can't seem to get a shorter mathy way, and I can't see chopping 20 bytes from the string version.

Poke

yeah I was on my way to that after i realized

you should be able to return int still

Geobits

4:01 PM

Then you have to cast the return :/

Poke

why

Geobits

Because it won't auto-cast long to int.

Poke

you don't have a long at that point

.length returns an int

no?

Geobits

My compiler says otherwise

Poke

here's my 71 int b(Long a){return a==0?0:1+b(~a&-1L>>>64-a.toString(a,2).length());}

Geobits

4:03 PM

Oh, it's because of n%2, since n is long.

Poke

before realizing split took a regex

well

time for lunch

Nathan Merrill

this may be the first time people are actually discussing golfing in Java in this chat room

5

congrats all :)

Kritixi Lithos

That is why I created JGolf, a golfed version of Java

Geobits

Then why not use it?

The idea for a golfed Java has been around for a while. Nobody's actually done it and used it though AFAIK.

Kritixi Lithos

It's still developing

I've just added golfed for-loops

TuxCopter

4:08 PM

@Geobits github.com/GamrCorps/Glava

El'endia Starman

I think I vaguely remember hearing about stuff like this, but it's really cool to see it shown this way. Bouncing oil droplets exhibit many properties seen in quantum mechanics - youtube.com/watch?v=WIyTZDHuarQ

Kritixi Lithos

@TuxCopter I'm still going to develop JGolf

Geobits

@TuxCopter Yeah... Glava seems mostly like a rename/replace "language" though, which is unfortunate. It's also only been used on three answers.

TuxCopter

:/

feersum

So you get either a stuff with name abbreviations (lame), or something with little relation to Java.

Kritixi Lithos

4:12 PM

@feersum Which one is JGolf?