The Nineteenth Byte

quartata

12:00 AM

their userland is Java right? most JVMs have sun.misc.Unsafe

and that's just the simple way

ASCII-only

github.com/dzavalishin/phantomuserland

quartata

There might be a security policy for Unsafe, can't remember

@NathanMerrill what are the usual tournament formats for KoTH?

I've seen a variety but not sure what most people prefer. I don't think it makes a huge difference for this

Downgoat

@ASCII-only excuse me, that is AvocadOS

quartata

I guess I'll go with round robin, doing knockouts will probably just overcomplicate things

ASCII-only

@Downgoat no, avocados is JS OS, not JS of OS

Conor O'Brien

12:27 AM

[CSci] dumb phone number input

►

Leaky Nun

@orlp nice

ASCII-only

@ConorO'Brien 0/10 the graphics are terribad

orlp

@LeakyNun so I'm testing something out

gist.github.com/orlp/3cd07b159eb9c27243287b2f243098ae

look at that grammar

how long do you think the chomsky normal form of that grammar is?

Leaky Nun

am not a computer

orlp

:O

gist.github.com/orlp/f5ea3546c6a1457600a8d062e930dd55

137 rules ^^

ASCII-only

12:36 AM

@ConorO'Brien clearly a smart one in SHENZHEN I/O would have been so much better :P

Conor O'Brien

@ASCII-only as in, the LED or the video quality

ASCII-only

@ConorO'Brien LED

Conor O'Brien

ok, cool, that's intentional lol

orlp

@ConorO'Brien wouldn't this break for characters which share no common edges?

Conor O'Brien

spaces also work as a separator

ASCII-only

12:39 AM

@orlp yeah but i don't think there are numbers with no common edges

orlp

@ConorO'Brien booooo!

obviously the right answer would be duplicate the display

and show all possible valid interpretations

!

ASCII-only

wouldn't that be too many

orlp

vOv

define too many

you can fit many displays on a scrollable page :D

ASCII-only

like around 4 ** number of chars

orlp

you could even make it a lazy generator

with infinite scrolling

ASCII-only

12:41 AM

that would be a great idea

Conor O'Brien

I'll see if I have more time :P

ASCII-only

i was going to try it, but if you want to do it that means i'll just keep on working on cauliflower :P

just realized it has no while loop :|

@orlp wouldn't 1 display only + a slider be better

static class Calc
{
    public static double Pow(double n, int power)
    {
        return power == 1 ? n : Pow(n * n, --power);
    }
}

:|

social.msdn.microsoft.com/Forums/vstudio/en-US/…

ASCII-only

1:17 AM

@ASCII-only actually that would probably need a biginteger library

Pavel

@ASCII-only That would give n^2^2^2^2...

ASCII-only

@Pavel yeah >_>

Pavel

Pretend there are parentheses

New Meta Posts

0

Q: Newbie question about voting

Voting while participating As it's a contest it doesn't make sense to vote for other answers - does it? Should I vote for the puzzle? Isn't the participation already a vote? Voting while not participating Beside the code-length, what are other usual motives to vote? Considering that i have ...

discussion

ASCII-only

1:59 AM

led thing in progress

DJMcMayhem

2:18 AM

@JoKing Do you have a readable version of your comment? I don't generally like posting golfs that I can't understand lol

ASCII-only

@DJMcMayhem you should write an explainer for brainflak then :P

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Rock, Paper, Scissors, Load, Shoot, Block, Mirror, Plasma-shot, Ammo-block, Punch, Bazooka, Super load, and so on and so forth This is an abomination of a king-of-the-hill challenge. Two bots are fighting to the death, but the rules keep changing. Each turn both bots have the same set of 3 rand...

Nathan Merrill

2:37 AM

@quartata I'm not sure what you mean by "Tournament format"?

how the players are arranged?

quartata

round robin, Swiss, knockouts, ...

Yeah

Nathan Merrill

most common is round robin and sampling

also, based off of score

New Main Posts

0

Q: Overlapping Strings

Challenge A simple challenge: given two or more strings, output all of the substrings that are in each string. Rules Input is always a comma separated list of strings Strings should be outputted from longest to shortest length without duplicates Strings should preserve whitespace Examples ...

code-golf string

Nathan Merrill

pretty much every other popular tournament structure is bad

I've never heard of swiss, but it looks promising

any form of elimination tournament though is terrible

yeah, I still stand by my 3 above

swiss isn't all that interesting: it's more geared towards minimizing games

quartata

We do a variant of Swiss sometimes in bridge. you have a team of one north-south pair and one east-west pair so that your team's performance at either position on the board affects who you play

Nathan Merrill

2:43 AM

and while that is always a goal of ours, their "minimizing" means 10ish games, were I'd be appalled if we played that way

quartata

But yeah Swiss is not what I'd use for this

Nathan Merrill

so, round robin is the standard if you have a few number of players, because you'll actually have a chance to play every pair

sampling is the alternative if the above isn't true

and score-based selection is used when ties are common

because you'll have the top two duke it out more

the way you implement it is to randomly select a player (or iteratively select each one), and have them play the player(s) with the nearest score

What Wizard

@MartinEnder Congrats on getting steward!

Nathan Merrill

it doesn't guarantee an equal number of games, but unless you're doing sum-based scoring, who cares

Jo King

@DJMcMayhem, I just improved the pushing part by pushing a couple of 0s at the beginning to abuse [] and combined a couple of the other numbers, like the two 10s. I also changed the decrement in the loop to an increment. I have a spread out version, but I can’t post it right now

DJMcMayhem

3:12 AM

@JoKing Hmm, OK. Strange, it seems like extra values should be less useful since most of the values pushed were pretty small

I wonder if I could save bytes by making the pushed numbers smaller and then adding a constant to the popped value later

Jo King

3:36 AM

@DJMcMayhem Explanation

DJMcMayhem

Thanks!

ATaco

5:32 AM

I solved my lua problem last night by just implementing Fraction

Because atleast math with ints makes sense.

ASCII-only

@ATaco impotato?

ATaco

I'm a programmer not an English Teacher.

Downgoat

@ATaco s/programmer/taco

betseg

5:59 AM

@ASCII-only then shouldn't it return null or raise an exception or something

ASCII-only

8 hours ago, by ASCII-only

@J.Sallé hey, JS isn't that bad, it just implicitly casts a lot, kinda like Perl. it was designed to fail as little as possible, so if you mess one thing up the rest probably still works

@betseg remember, JS was designed to be basically idiot-proof

ATaco

6:10 AM

JS is no worse than HTML

ASCII-only

of course, HTML is much worse

New Main Posts

0

Q: 99 Varieties of Dosa

Recreate the variant of the menu of the popular '99 Varieties of Dosa' listed below. (Note: Despite the name, the list contains 103 varieties and not exactly 99) The desired output is the following list (in any order): Sada Dosa Cheese Sada Dosa Paneer Sada Dosa Paneer Cheese Sada Dosa Schezw...

code-challenge popularity-contest

New Sandboxed Posts

7:16 AM

0

A: Sandbox for Proposed Challenges

The Weaver I've been recently playing through 'The Weaver' and I think it presents an interesting challenge for code-golf. Premise: The Weaver is a game wherein you are given a number of ribbons coming from 2 directions 90 degrees apart and your goal is to swap them at certain intersections to...

Kevin Cruijssen

7:40 AM

How does one reverse the match of a Retina regex? Currently it returns 0 for Truthy and 1 for Falsey in a challenge I just did (codegolf.stackexchange.com/a/162670/52210). What would be the best way to inverse this result? I'm not too skilled in Retina..

user202729

For pure regex there is negative lookahead. For Retina there may be better ways.

Neil

8:25 AM

@KevinCruijssen Try it online! is probably easiest. Note that your original code seems to have two bugs, in that a) it was case sensitive b) it could return values other than 0 or 1 in some cases

New Main Posts

8:43 AM

-5

Q: https://realcoloncleansingworks.com/probioslim-advanced/

The contextlinks weight loss pills will be shipped to one's home and sometimes this is done for free. If you've paid any attention at all to the problems that have been affecting people in this country lately, then you are probably well aware that losing weight is a top concern. Read through this...

code-golf

Kevin Cruijssen

9:51 AM

@Neil I had indeed forgot the case insensitivity. And I wil add you code as a remark to my answer. Also, about the second part you mentioned, which test cases would return a value other than 0 or 1?

Neil

@KevinCruijssen aabbcc123 returns 6 for example.

ATaco

@NewMainPosts Oh no, the spam bots found us.

Leaky Nun

CMC: given a list of non-zero integers, remove consecutive pairs of numbers that cancel out each other until no pairs can be further removed

so [1,2,-2,-1,3] becomes [3]

[1,2,-2,1,3,4,7,-7,3] becomes [1,1,3,4,3]

Kevin Cruijssen

@Neil Ah of course.. Thanks for the explanation and fix

ATaco

10:16 AM

Having more difficulty with this one than expected.

ASCII-only

@ATaco which one

ATaco

That CMC

Got the hang of it though

ASCII-only

if you don't care about golfing and your language has cheap loops + delete at index, decrement index after finding a match

ATaco

I got the hang of it already.

Through Funky's funky-ness

Just golfing now

ASCII-only

@NewMainPosts yeah i really need to cleanse my :

ATaco

10:30 AM

Funky, 74 bytes s=>{for0;0<=d=s::fold@+::map(a=>a==0)::find(1>0)){r=@s::remove(d)r()r()}s}

Probably better than Javascript

It now occurs to me I should make find accept a function

Because then I could do s=>{for0;0<=d=s::find((a,i)=>a==-s[i--1])){r=@s::remove(d)r()r()}s}

Oh wait, I'm an idiot, I can search for 0 instead.

Funky, 57 bytes s=>{for0;0<=d=s::fold@+::find(0)){(r=s::remove)(d)r(d)}s}

ASCII-only

@ATaco O_o

@ATaco why are open parens optional but open braces not

ATaco

Oh no, Open Parans are just optional for for

ASCII-only

@ATaco ... do you have other types of loops

ATaco

while

ASCII-only

and it doesn't work for while? >_>

ATaco

10:38 AM

And of course I have other types of keyword, if, switch, when

And no, it does not.

Try it online!

(No-one's questioning the when statement?)

ASCII-only

@ATaco ... 0/10 inconsistent

ATaco

Oh, and recently with was implemented.

It's because for actually includes the parentheses as part of the grammar, where as the other statements are simply seeing a parenthetical expression, which is an expression wrapped in quotes.

The right parenthesis in the for statement is simply saying "I am not providing any more statements", which is useful in a few situations, such as this one.

ASCII-only

@ATaco parentheses == quotes? wat

ATaco

I meant Parenthesis, not sure why I said qoutes.

ASCII-only

@ATaco can you not make the left paren always optional

ATaco

10:43 AM

Maybe? I wonder if that will work.

ASCII-only

might not be a trivial change

ATaco

You underestimate Funky's grammar system.

ASCII-only

not that, i meant it may break some things. it really depends where you accept expressions

ATaco

That is what I'm concerned about persoanlly.

(Basically everywhere, it's 90% of how Funky guesses things)

But I have a tool developed explicitely for working on the grammar.

ASCII-only

also: wait. both parens are basically optional anyway for any loop other than the for loop

ATaco

10:45 AM

Yeah.

Well, in the forloop too if you have three statements

fori=1i<10i++print(i) is perfectly valid

The tool for working on my Grammar, if you're curious

ASCII-only

@ATaco i saw it when you first posted it lol

ATaco

Wait, my bad

Nope, broke everything.

Because Funky really doesn't like it when a grammar asks for a keyword at the start of it.

Adám

11:12 AM

If you haven't had a play with Dyalog APL at TIO (Try It Online) then take a look at Leigh Mercer's mathematical limerick expressed in APL https://tio.run/##TU8xbsJAEOx5xdTYQOwYoRQUKGnoKPKBI7c2J9l35M62ZB5AEQmUJqJKlUf4Af6JPwJrAyJTzUozOzNim45kJVKTnBm23X97kyBEEEUIn4D28IsFpNmR9iGQWOMcEy35cB/Gkj@wHpuem1M0bOoQPTrXKi0c8o0lQq4y6jjBfRbCEqwxOUyM2BSWHzQ1f5jhgc7/pkolSWJdwVHJ8degaXMKgv@6PidW5T2G0pt6/jIM0X79oT3@vL6z9TZn6aCVvneR/RjNfQTWKkfGm8YX

Tweeted by dyalogapl on April 18, 2018 at 9:31 AM

Neil

11:40 AM

I remember when that limerick was on QI

Emigna

11:52 AM

Ah right, I was wondering where I'd heard it

AdmBorkBork

1:03 PM

@Adám Nifty.

ASCII-only

clhs.lisp.se/Body/f_car_c.htm

:|

Nit

To be fair, that's pretty amazing

ASCII-only

what is

Adám

@Nit ^

Anybody knows why \b-\?+\b doesn't match -? ?

Emigna

escape - ?

ASCII-only

1:16 PM

\b is word boundary. might not be why though

Erik the Outgolfer

@Adám I don't think you need the two \bs, although I don't think that's the problem here

Adám

@ASCII-only Ah, since -? isn't a word.

@EriktheOutgolfer I want to make sure it has whitespace or nothing around it.

Nit

I was talking about the cars.

user202729

If only the enter key also had a notch in it so this wouldn' — 12Me21 Mar 14 at 19:33

ASCII-only

yep: \b assert position at a word boundary (^\w|\w$|\W\w|\w\W) in PCRE, I'm assuming most implementations define it the same way

Erik the Outgolfer

1:18 PM

@user202729 refresh?

user202729

@EriktheOutgolfer Uh...? Why refresh?

Adám

@ASCII-only Dyalog APL uses PCRE. So I must use (^|\s)-\?(\s|$) ?

ngn

@Adám don't forget the +

Adám

@ngn Right. Thanks.

user202729

Huh, NMP got positive score now.

Erik the Outgolfer

1:21 PM

@Adám ah, it looks like you're trying to make sure there's whitespace or an edge of the string around the -?+ string

Adám

@EriktheOutgolfer Yup.

ASCII-only

@Adám :/ why use PCRE if you have .NET though? also: I'd probably ?: at the start but it probably wouldn't make a difference here, and I'm not sure you should be matching the whitespace as well

Erik the Outgolfer

@Adám actually, word boundaries make sure that there is a word character around each edge of that substring

and that it's not the start or end of the string

Adám

@ASCII-only Because it must work cross-platform. What is ?:?

Erik the Outgolfer

(that's the case because that substring doesn't start or end with a word character)

Adám

1:23 PM

@EriktheOutgolfer I just need to find out if there is a free-standing -???… anywhere.

Erik the Outgolfer

@ASCII-only lookbehind and lookahead ;)

Emigna

@Adám Would ^\s*-\?\s*$ work? (or replace * with ? if only one is possible)

ASCII-only

@Adám non-capturing, mostly useful for large regexes with a lot of capturing groups, or when a group matches multiple times

@EriktheOutgolfer yep (although matching/not matching the space probably isn't important here)

Erik the Outgolfer

eh, that's not really the point right now though :P

Adám

@Emigna No, that would check if the entire string is just that. I need to find it anywhere.

Emigna

1:24 PM

Ah OK

then just remove ^ and $

orlp

A bicycle in zero gravity is unrideable (The bricycle).

►

Adám

@Emigna That would match abc-?def, no?

Emigna

@Adám Yep, Seems I've misunderstood what you were trying to do

Adám

Thanks y'all. TNB is the go-to place for quick solving of coding issues.

Erik the Outgolfer

@ASCII-only in Dyalog it's actually more important if you process the match other than testing if it exists

just let's get things one-by-one

Adám

1:26 PM

@EriktheOutgolfer @ASCII-only I'll just parenthesise the -\? part and select that result.

ASCII-only

@Adám do you just want to find all occurrences?

Adám

@ASCII-only Yes.

ASCII-only

also: version with lookahead and lookbehind: (?<=^|\s)-\?+(?=$|\s) - this would be useful if e.g. you wanted to replace the match

Erik the Outgolfer

@Adám then I don't think you need to exclude the whitespace...

Adám

@EriktheOutgolfer Why?

Erik the Outgolfer

1:29 PM

@Adám well, do you want to count -????? -??? -? as one or three occurrences?

you only need to exclude it if the whitespace can be shared between matches like that

Adám

@EriktheOutgolfer Ah, that's what you mean. I solved it by allowing overlapping matches.

ASCII-only

as an engine option? or in the regex

Erik the Outgolfer

@Adám I was talking more regex-wise here, yeah

Adám

@EriktheOutgolfer It doesn't really matter, as that shouldn't occur, but I guess I should count the total number of question marks. Or maybe the longest group.

ASCII-only

> I guess I should count the total number of question marks.

O_o what are you even doing lol

Adám

1:32 PM

@ASCII-only I'm parsing command line arguments.

Erik the Outgolfer

@ASCII-only Dyalog has an option for that, so most probably an "engine option"

Adám

@ASCII-only I'm not sure how it is implemented. It is an option in the Dyalog APL cover function for PCRE.

Erik the Outgolfer

@Adám help, super help, huge help, enormous help, vast help, ...

Adám

@EriktheOutgolfer Yes, exactly, though I do believe vast help comes before enormous.

ASCII-only

hmm, personally i'd move that to the regex then so it can be slightly more performant, but that's just me over-prematurely-optimizing

J. Sallé

1:34 PM

@Adám I vote for the highest level of help be called gargantuan help.

ASCII-only

@Adám wait. APL has no arg parsing module? D:

Erik the Outgolfer

@Adám btw why would you parse command-line arguments with regex all at once?

Adám

@ASCII-only It does, but I'm injecting some code to provide help before the user's code's usage of the provided parser kicks in.

Erik the Outgolfer

I'd say split the arguments with a regex and then parse each one separately

Adám

@EriktheOutgolfer That's being done later.

ASCII-only

1:36 PM

@Adám ah, i see

Anonymous

I've started a list of PHP stupids that I've run into at work. I'll probably make a book out of them once I have enough

Adám

@ASCII-only I should really learn about look(ahead|behind)s

Erik the Outgolfer

@Adám if you ask me, I'd say that you should really have the list of command-line arguments ready before anything else happens

Soaku

@Mego Remember to unset the reference every time you end a ref-loop

ASCII-only

@EriktheOutgolfer why would a language automatically parse args for you though

Soaku

1:38 PM

I do it always

Erik the Outgolfer

@ASCII-only huh? I meant that you should prepare them as necessary

Anonymous

@Soaku This is a thing that wouldn't be a problem in a sane language, but PHP is not sane

J. Sallé

@Mego Why is there no (if something==true)? I thought that was present in every workplace ever

ASCII-only

sees random JS answer `to${c<{}?'Low':'Upp'}erCase`

this is wonderfully hacky

Pavel

@Mego There's a site called php sadness that does just that

Anonymous

1:41 PM

@J.Sallé Because that's unnecessary-but-valid code, and is language-agnostic. This list is just stupid PHP stuff that would work in a sane language, but causes problems in PHP

J. Sallé

@Mego ah, I see

@Pavel php sadness is a total pleonasm

Anonymous

My boss publicly shames people who do if(something == true), so that doesn't come up much

J. Sallé

@Mego as well he should

Soaku

Somebody, please make PHP without all the "sadness" and it would almost be language of my dreams

user202729

Can anyone help me, I can't get rid of CORS. MCVE and error messages below. /* I tried google and found nothing. Thanks. // comment out because SO */

Anonymous

1:44 PM

@Soaku That exists

user202729

https://tio.run/##bVLBbtswDD1bXyHkIqlwnB52KLI6QDEM62HFgLWHHavJrKNOkTxJrj0E/vaMkpOs2wrYsCk@6vHx8Vm@yKC87uLSugYOB@VsiFR2Ha2ph5@99sAZjJ2HEJigXBCCyaoPwM9p5XzO7ZWHBmzU0oQ1jb6HkjqvW23naBLHatdFjTycrVhJn3qrUkjThSWSBkH3pMBvFSDegmzA88WNUtjB8oOz0TuzvDHGDcsv@fJFSRcXC/H@3xr2Zs0dxK1rAhKzC/Z/0dtEczL8zQS24fg/4ZtVtRBnRa@E1Bu6P2Hvo9e2rbwcHsn1PPQNOauXz3LkvTclVdKY71L9QAe4qDf7qaS73DQesE8fH5ChkVFiZHtjBM7qRXo67sxtjMk2CwP9dvc5RV/RIggxuVYcAZWzHtX8ClFGUFtpW8hEuVVSFPqJ8hM0A@8TkNZ1Td9lY4ri1OArXOjQT3iAMQpETCQ9Z8IOLJ8VlDQrTMsg/gBCmk6SJMhE8hzYFs/DerUahqFqnWsNVMrtWDnWm7ShDmPjWj7iRl2vjrNcC/IopuOKGR0i0l5dXl2Kw@E3

Poke

@user202729 just because you're sending the appropriate headers doesn't mean the server is

user202729

@Poke confused

Nit

@user202729 The server has to say that it will data to your site by responding with something alone the lines Access-Control-Allow-Origin: foo.example

it will allow data*

Soaku

@Mego Ehh...

user202729

1:47 PM

... I think you were talking about the Google server.

Anonymous

PHP - bad stuff = NOP

Nit

In this context, we are talking about Google's server. You can't make arbitrary Ajax queries to random servers, the browser security model doesn't allow that.

See this question for more details and further info: stackoverflow.com/questions/10143093/…

Soaku

@Mego I don't want to talk about that, but seriously, it's not that bad. I was once arguing it on TNB and don't want to do that once more

Pavel

@J.Sallé I am unfamiliar with that last word there

Soaku

I prefer PHP way more than JS or Java, for example

J. Sallé

1:49 PM

@Pavel Pleonasm is the use of more words than it's necessary to convey meaning.

ASCII-only

@user202729 the solution is super easy: run a proxy on the same domain, if you have access to it

user202729

@ASCII-only same domain = Google in this case?

Poke

@user202729 no

on the same domain your script is running on

ASCII-only

^

Nit

@user202729 What are you actually trying to do?

Poke

1:51 PM

write a backend to proxy your ajax request

user202729

@Nit Good question.

Poke

remember cors is enforced in the client (your browser in this case)

ASCII-only

alternatively: recompile your browser so it somehow ignores CORS :P

Poke

@ASCII-only i think there's a chrome commandline flag or something to disable it

ASCII-only

probably.

or write a browser extension to add the functionality in. it might be possible without an extension in Vivaldi, but idk

not related to current discussion: would it be possible to write a function accepting two integers and a number from 0-15 (which is used as the truth table) that has better than terribad performance

user202729

1:55 PM

@ASCII-only In which language?

ASCII-only

@user202729 C# (.NET Core), so no compiler intrinsic/assembly magic available

user202729

@ASCII-only 1 Benchmark first 2 Maybe make it operate on arrays instead of individual integers to reduce fn call cost?

ASCII-only

2. good idea but it's not like anyone would want to use it to operate on arrays, especially if it's a fully interpreted language (i.e. really high call cost already)

user202729

tio.run/##vVLLCsIwELz3K@aoBA/…

@ASCII-only C# is not interpreted...

ASCII-only

@user202729 1. technically it is 2. it's a language written in C#

user202729

2:02 PM

Basically I have access to (1), (2) is a server, and I want to connect to (2) from (1).

mınxomaτ

C# is not interpreted. By default it is compiled, but toolchains like Mono do provide a C# interpreter.

user202729

So I intend to use (1) -> Free server -> smartphone -> (2), but the last connection is not possible.

(maybe I'm facing the XY problem?)

Recompile the browser on the smartphone is possible but there may be a better way?

@Nit ^

@ASCII-only But if it's called only a few times then why would it be slow anyway?

Pavel

@mınxomaτ Regular, microsoft-distributed C# comes with an interpreter called csi.exe now.

user202729

@Pavel Doesn't mean that you must use it.

Nit

@user202729 If you're on a smartphone anyway you could always make an app - that wouldn't have any cors issues.

Pavel

2:07 PM

I was just pointing out that you don't need mono

user202729

... correct.

Nit

But yeah, it sounds a bit like XY

user202729

Todo learn about how to make android app

mınxomaτ

@Pavel Never implied that. Hence toolchains

user202729

Oh no...

Pavel

2:08 PM

Apps are hard

Android studio likes to not work properly

Java is crap

Although kotlin is a thing

user202729

Last time ~~messing with~~ using Android Studio I remember waiting forever for downloading and other problems...

Nit

I've built many mobile applications both for Android and iOS at my day job and honestly, the hardest part of the whole thing is always the tooling. Build tools throwing obscure errors, dependency management, certificate passing hell etc.

Pavel

Here's the secret: you can use normal IntelliJ IDEA and it'll work better.

Not well, but better.

user202729

Plus I have 0 knowledge about Android development...

Pavel

@Nit Yep, same. :/

The libraries and APIs aren't actually that hard to use

Poke

2:12 PM

@Pavel them be fightin' words

Pavel

@Poke Ok, more honestly, Java is meh

Not the end of the world if I have to use it but would rather be using C#

Speaking of which, Xamarin is a thing that is neat for app development.

J. Sallé

You can only say Java is crap if you work with Java

Because then you'll have experienced first-hand all of its mighty crappyness

Soaku

@J.Sallé I worked it for a short while. And I've got a brother who keeps telling me about it. Enough to know I should really avoid it

Nit

@J.Sallé Tbf, anyone can say anything, but you don't have to listen to them.

J. Sallé

@Nit valid

@Soaku Yeah, that's enough to be sure it's crap, I guess.

Soaku

2:22 PM

strawpoll.me/15528284 no box

btw the page title "What's worse - Straw Poll"

lol

they escaped it twice.

Dennis

@Mego You could make the list shorter by enumerating the parts that aren't stupid.

7

Pavel

@J.Sallé I do

Well, I did. I stopped and work with C# now

Erik the Outgolfer

@Dennis then there would be no list...

Dennis

That's a bonus; we're already done!

Erik the Outgolfer

42 mins ago, by Mego

@Soaku That exists

user202729

2:26 PM

@EriktheOutgolfer All lists can be empty.

Erik the Outgolfer

the point is that it would be utterly boring then lol

user202729

(Haskell [], J '', Jelly “”, C++ {})

(Why nobody want to implement Simplex algorithm + Gomory cut or equivalent ...)

Soaku

why did somebody star my poll

user202729

> useful / interesting for the transcript

Neil

@J.Sallé I always wondered, after having seen it here, and being to lazy to look it up: mezzacotta.net/ads/guess_whom.png

J. Sallé

2:40 PM

@Neil I think it's not something as relevant in English as it is in Portuguese. "climbing up the stairs" is completely right in English, but if you translate it into Portuguese it becomes hideous because it's a clear pleonasm

BMO

Uhm, does someone do a lot of Java? I'm reviewing Java code for a project and don't understand why others keep doing void foo() { { /* CODE */ } }.. What's the point of opening a new scope? There's no code before or after that new scope :S

user202729

@BMO No code before or after?

It's redundant.

BMO

No

Yeah, that's what I thought. But who knows.. I'm not very proficient with Java

user202729

Probably...

BMO

Initially I thought it might have sth. to do with Exceptions hidden until runtime, but I just did some testing and that doesn't seem the case

Weird

Especially since 3 different groups are all doing the same :)

user202729

2:46 PM

Nope.

stackoverflow.com/questions/32819537/… .

BMO

Uhm ok, why would I want to hide fields anyway.. But if this is the only usage, these people are just wasting bytes on {} and more indentation without any effect whatsoever

user202729

The answer states that it doesn't have any effect.

wasting bytes

New Sandboxed Posts

3:06 PM

0

A: Sandbox for Proposed Challenges

Cleanup after Easter king-of-the-hilljavascript As most people (probably) know, Easter was about a month ago. But around the community oark, there're still some eggs hidden! Can you build a (Javascript only, please) bot to help us find them? The Course: The bots will compete on a 201 by 201 f...

Anush

3:25 PM

hi

I hope you don't mind but here is a coding question...

Say A = np.array([[a,b],[c,d]]). If L = [1,1,2] I would like to output

[A[1,1], A[1,1], A[1,2]], [A[1,1], A[1,1], A[1,2]], [A[2,1], A[2,1], A[2,2]] . In R this would be A[L,L]

is there a neat way to do that in python/numpy?

Stephen Leppik

I've noticed some sudden upvotes on codegolf.stackexchange.com/q/146499/62402. It's really old, so does anyone know why?

Anush

That is:

[[a,a,b],[a,a,b], [c,c,d]]

@StephenLeppik I notice that happens sometimes.. maybe it has appeared on reddit?

orlp

@StephenLeppik there could be activity, bumping it up

and then people like the challenge perhaps

@LeakyNun you here?

Leaky Nun

hi

orlp

so I made a new version

gist.github.com/orlp/e985f2ce0ba8b5f6de813f7bdeb0bb5b

Anush

3:30 PM

if my question is unclear please let me know

orlp

look at the grammar in the bottom

user202729

@Anush Why not Python chat room...

orlp

that's basically 'all Python numeric expressions with two-digit numbers and variable a, b'

Leaky Nun

nice

orlp

using PyPy it can generate all ~154 million such expressions of length 8 in 17 seconds

it generates 10 million expressions / sec

Anush

3:32 PM

@@user202729 I have no excuse.. you just seem much nicer :)

Stephen Leppik

@orlp oh, I checked the recent activity and apparently it got on Twitter: twitter.com/StackCodeGolf/status/924482424880488448

Leaky Nun

@orlp nice

DJMcMayhem

@StephenLeppik Someone posted spam on it. It was deleted almost immediately, but that still bumped it to the front page. From there, someone must have seen it and upvoted it

orlp

@LeakyNun my idea with this is the first part of a superoptimizer

with CFGs you can actually be very specific in what forms you want to test

(a superoptimizer essentially tests all possible programs and finds the best/shortest/fastest/whatever)

user202729

Maybe itertools.product(L,repeat=2) ? (pure Python, idk numpy)

Erik the Outgolfer

3:39 PM

@orlp looks like printing would be a bit slower depending on the console :P

orlp

@EriktheOutgolfer yes, printing is the bottleneck if you choose to print

Erik the Outgolfer

if you choose to store in an array then, well, it would be slower depending on your RAM

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

All Light! code-golf This challenge is completely ripped offheavily inspired by All Light, developed by Soulgit Games. Challenge You are an electrician, and it's your job to wire up all the lights to the battery. The lights and battery are laid out in a grid. You can connect a light or batte...

0

A: Sandbox for Proposed Challenges

Bots counting to 11 Still to do in the question More examples of correct formatting More specifics on formatting A childhood game designed to help children learn to count in french in Canadian schools is played as follows: Students go around the room counting up to 11 A number greater than...

musicman523

Let me know if you guys have thoughts on my question in the sandbox :)

user202729

s/question/challenge/

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