The Nineteenth Byte

Mini-chat-challenge-poll: Write a program to parse the string A -> B into the list/tuple [A, B]. A and B may be any lowercase words, e.g. cat -> dog. Do the same for the format | A | B |, where there may be an arbitrary and different positive number of spaces after the A and B.

Based on the code required to parse each format, which do you prefer? (context)

Zgarb

@AlexA. It did find my paper in a computer science conference, but medical papers are probably not there.

Alex A.

Ah, okay.

Maltysen

@Calvin'sHobbies there should be a tool for this

I'm gonna make it

Alex A.

1:10 AM

@Calvin'sHobbies Julia: split("A -> B", " -> ")

J Atkin

Would this be good for a fastest-code challenge?

Calvin's Hobbies

@JAtkin Are you willing to test the speed of all submissions yourself on a central computer?

Maltysen

Wow my java online course actually has some blatantly wrong information. It's not confusing anymore, its just blatantly wrong

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Calvin'sHobbies Jolf: Gi" -> ; Jolf: G(rho)i"(.+)\s+|\s+(.+)\s?'$1,$2',". Definitely the former.

J Atkin

Depends on how much stuff I would need to install...

Calvin's Hobbies

1:12 AM

@Maltysen A tool? For making test suites parsing this is pretty language specific

Maltysen

@Calvin'sHobbies no an online tool that parses various input formats for test cases

and it should auto-detect the most common

Doorknob

@PhiNotPi reddit.com/r/lojban/comments/410pwf/…

Calvin's Hobbies

@JAtkin Just, when you have fastest-code you need to test them on the the same computer for fairness, and that usually means your computer

Alex A.

^

You'd have to install whatever language they use, explicitly restricting in the spec to languages available for your system.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Calvin'sHobbies We should appoint one person to check all programs for fastest-code. Nominations?

:P

J Atkin

1:15 AM

I understand that, but the thing is I don't know (or really want to know for that matter) how to use most of the languages on this site...

Alex A.

Like how to run the code?

Or how to write code in that language?

J Atkin

Yup

#1

Calvin's Hobbies

@JAtkin Then fastest-code is probably not a good choice

J Atkin

Ok

Alex A.

Yeah, it's not obvious for a lot of languages. Come to think of it, I don't even have Pyth installed locally on my computer; I just use the online environment whenever I want to write something.

J Atkin

1:17 AM

I was thinking of c++

or c

or R

Alex A.

For R, save it in a file with the extension .R and run from the command line with Rscript.

For C/C++, compile with gcc or similar, then run the executable from the command line.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

For (character), save it with the extension .(character) and run it from the cmd line with (character)script

J Atkin

^ Always works

Alex A.

If you're going to do a fastest code challenge, you can just specify that answers need to include instructions for how to run them locally.

That seems entirely reasonable.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@JAtkin github.com/ConorOBrien-Foxx/-

@AlexA. Yeah, good idea

Luis Mendo

1:20 AM

@Dennis Great! Thank you for all!

Now I'm really off to sleep...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

G'night!

Maltysen

@CᴏɴᴏʀO'Bʀɪᴇɴ wasn't the KOTH server gonna do that?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Maltysen Eventually, yes.

J Atkin

Do we have a challenge to get data from a table?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

mini-challenge Create a program whose source code is a valid English word. pop-con.

J Atkin

1:21 AM

 |a|z|
------
a|1|8|
b|5|6|

(a,z) = 8

Cᴏɴᴏʀ O'Bʀɪᴇɴ

hmmm can be interesting.

Can tokens be longer than a char? ^^

Maltysen

@CᴏɴᴏʀO'Bʀɪᴇɴ I think issacg wrote a program to find Pyth programs that are english words before

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Maltysen Huh! Well, a shame he isn't here right now. :P

J Atkin

@CᴏɴᴏʀO'Bʀɪᴇɴ That's what I'm thinking.

El'endia Starman

@CᴏɴᴏʀO'Bʀɪᴇɴ In TI-BASIC, they are.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:23 AM

@JAtkin More interesting!

@El'endiaStarman XD referring to @JAtkin's challenge proposal.

El'endia Starman

Yeah, just got back to this chatroom and haven't yet read the transcript... :P

J Atkin

   |a|zy|
---------
atb|1|85|
b  |5|6 |

Cᴏɴᴏʀ O'Bʀɪᴇɴ

\o/ that's how I do it :P

J Atkin

(zy,atb) = 85

Nathan Merrill

@Dennis it would be awesome if your site had an execution timer

Maltysen

1:25 AM

what if one of the #'s was 892

Calvin's Hobbies

@JAtkin I actually think there's lots of potential in fastest-code, your challenge and many others could suit it well. The problem is that no one wants to run all the code :/

Maltysen

would it be |zy |?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

     |a| a|
-----------
|    |3|  |
|asdf|3| 0|

J Atkin

Hmm

Nathan Merrill

@Calvin'sHobbies that is by far the biggest reason I don't do multi-language KoTHs

that and execution time

J Atkin

1:26 AM

^

Maltysen

@NathanMerrill why would anyone want to use anything other than Python? :P

J Atkin

I can do JVM, but thats it...

Jython

Nathan Merrill

@Maltysen oh, I don't use python either. its too slow for most of my KoTHs

Cᴏɴᴏʀ O'Bʀɪᴇɴ

cergos.blogspot.com/2015/04/error-404.html

Calvin's Hobbies

Hmm. What if only there a was a rasberry-pi specific fastest-code? Only languages that come with a standard out-of-the-box pi are allowed (python, wolfram, go I think, I forget what else).

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:28 AM

JavaScript? :D

J Atkin

^^

Calvin's Hobbies

Testing could even be automated, and long-running or malicious code would not be such a big deal. And anyone with the same pi could test it (though the OP as main scorekeeper is still probably best).

Zgarb

@CᴏɴᴏʀO'Bʀɪᴇɴ Pyth: robbed. Prints a list of some unprintable characters.

El'endia Starman

I wonder if ideone has published anything on how they dealt with security issues.

Nathan Merrill

@Calvin'sHobbies why couldn't we install other interpreters?

10

Q: How is a public scriptable site like codepad or ideone manages it's sandboxing?

I've researched this stuff a lot in the recent months but i can't grasp any solid basis on how they achieve runing unsafe scripts in so many languages without a problem! I'm sure they are running virtual machines since language specific sandboxes won't cut it, but what about white listing every l...

Calvin's Hobbies

1:31 AM

@NathanMerrill I suppose, it just might be a hassle if dozens of different languages answer

El'endia Starman

@NathanMerrill Wow, that's a lot of work.

Cameron Aavik

I did one of my university projects based around sandboxing python for scripting in a game

it was a tower defense game where you code the towers

but in reality, it was really just using exec because python is good like that

RikerW

ARGHH SCREW NETHACK

</rant>

Cᴏɴᴏʀ O'Bʀɪᴇɴ

^^ yes.

RikerW

No, killed by killer bees + queen while hallucinating everything was puff the magic dragon and polymorphed into a confused stalker.

Alex A.

1:35 AM

@Zgarb And now we've all been robbed of victory.

Calvin's Hobbies

How about a hack-my-pi challenge? A script on my pi reads the challenge answers every 8 hours and runs them with a time limit and no privileges. The submission to consistently mess up/shut down the pi wins.

Maybe that's too easy though

RikerW

lol

Do it.

@CᴏɴᴏʀO'Bʀɪᴇɴ go

ballesta25

Though I think maybe we decided not to allow challenges asking for malicious code back when we got rid of code-trolling.

RikerW

BF code.

:P

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@RikerW pop-con: I downvote your answer. :P

ballesta25

1:38 AM

I mean [code-trolling]

SuperJedi224

Goodbye for now

ballesta25

Sorry, how do you do tags here?

Calvin's Hobbies

[tag:thingy]

thingy

ballesta25

Ahh, thanks.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@SuperJedi224 bye!

Nathan Merrill

1:42 AM

@Calvin'sHobbies We wouldn't support any language. But, if a language became popular enough, I don't see any reason to simply add another

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Supposed to be an easier challenge, but it's not that trivial How many decimal places? In this challenge, you will write a program to output how many decimal places are in the input string. Examples -12.32 2 32 0 3231.432 3 Rules Input will be a string which can be taken through, STDI...

RikerW

@CᴏɴᴏʀO'Bʀɪᴇɴ Aww..

Cᴏɴᴏʀ O'Bʀɪᴇɴ

sowee

Does anyone have a good flood fill algorithm? My head hurts and I literally can hardly think

(On text.)

Nathan Merrill

@Calvin'sHobbies give 1 point each time a user cracks your pi, user with most points wins. That way we have a good sandbox for fastest-code :)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

FU** IT I'M MAKING A FU**ING 2D PATTERN MATCHING REGEX

NOBODY CAN STOP ME

Calvin's Hobbies

1:50 AM

fuzz?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

suuuure

Alex A.

Fulp?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

wait wasn't that a challenge?

Nathan Merrill

yeah it was

Cᴏɴᴏʀ O'Bʀɪᴇɴ

hmmm

RikerW

1:51 AM

lol

Nathan Merrill

41

Q: Language Design: 2-D Pattern Matching

This is Fortnightly Challenge #6. Theme: Language Design There's a chatroom for this challenge. Come and join us if you want to discuss ideas! And now for something completely different... This fortnight, we want to experiment with a new type of challenge. In this challenge, you will be de...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

maybe I can ~~steal~~ use one

Calvin's Hobbies

Looks like you already got stopped

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Generate Programs in Increasing size In this challenge, you will write a program which outputs a program which is the double the length of the original program. The outputted program should output a new program a program double its length. Examples If my program is a: < a > aa < aa > aaaa <...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Calvin'sHobbies I'm still probably going to make one

Calvin's Hobbies

1:53 AM

So much loss of fuzzing determination :(

Cᴏɴᴏʀ O'Bʀɪᴇɴ

should I make a 2D pattern matching language?

I don't want to spend the time if it wont turn out good

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