The Nineteenth Byte

Mr. Xcoder

8:00 PM

Now, I must find a way to map them with the input, written them both.

@LeakyNun Woud yMQ work, since it is a monad, having the arg b?

Leaky Nun

@Mr.Xcoder it isn't an error

Mr. Xcoder

It is not benefficial either, I think

Leaky Nun

@Mr.Xcoder I don't understand what you mean

@Mr.Xcoder it is beneficial

Mr. Xcoder

Is it? It feels un-golfy :/

HyperNeutrino

er

I completely broke paintbrush

rip it was working last I checked without modifications in between then and now, so maybe I didn't test the new feature fully. but apparently - is an illegal character in a string because it becomes an operator ><

caird coinheringaahing

8:09 PM

@BruceForte why did you delete this? It seems like an interesting challenge

Mr. Xcoder

@LeakyNun Still around?

HyperNeutrino

@cairdcoinheringaahing Posted. Let me go find it and edit it down.

Leaky Nun

@Mr.Xcoder won't be around soon

Mr. Xcoder

@LeakyNun I currently have 28 bytes (still golfing): L&b-b'y-b1L?b-by'-b1 1'MQyMQ

Wait, I think the Q is implicit, so L&b-b'y-b1L?b-by'-b1 1'MQyM (27)

Leaky Nun

well obviously -b1 is tb

Mr. Xcoder

8:13 PM

I know there is h for increment, is there also a decrement (-blahblah 1 feels ungolfy)

Oh, right

I now have 25: L&b-b'ytbL?b-by'tb1'MQyMQ

Hooray!

Leaky Nun

> (pe31 <- function(n,coins) if(length(coins)) sum(sapply(n-seq(0,n,coins[1]),pe31,coins[-1])) else n==0)(200,c(200,100,50,20,10,5,2,1))
[1] 73682

(PE#31)

I wonder if I can optimize it, since it's too slow

Mr. Xcoder

May I look at your solution now?

Leaky Nun

@Mr.Xcoder sure

Mr. Xcoder

Yeah, I forgot to remove Q at the end although I said it is implicit.

I'm quite surprised I got that close :P

Leaky Nun

bye

Mr. Xcoder

8:16 PM

Bye

HyperNeutrino

Can I get some feedback on this?

0

A: Sandbox for Proposed Challenges

KoTH: Last Bot Standing king-of-the-hill python For this KoTH challenge, you are to write a Python bot that will try to crash or terminate the other bots. The bots will all be started from separate terminal instances in the same directory. There will be a file called signal.txt. It will be empty...

John Hathwood

Looks interesting

Mr. Xcoder

Can I also have some feedback on this?

0

A: Sandbox for Proposed Challenges

How fast does the ball hit the cushion? Background Consider you have two (unconventional) pool tables without pockets, that both have the same width, but different lengths. You and your friend launch two balls from the corresponding cushions of both the tables, under the same angle Ω (relative ...

John Hathwood

My bot of course would wait until the computer shutdown while all the other bots kill themselves off

HyperNeutrino

lol that works

@Mr.Xcoder Seems a bit trivial, though I wouldn't downvote or close it for that.

Mr. Xcoder

8:22 PM

@HyperNeutrino BTW Look on Main Again

HyperNeutrino

ok

John Hathwood

Challenges being trivial isn't usually a bad thing

It just means the character count will be shorter

Mr. Xcoder

@JohnHathwood It is for Jelly. Other languages get closer if the task is easy.

@HyperNeutrino You have an extraneous bracket

HyperNeutrino

><

Mr. Xcoder

Look on Main :)

That answer was invalid :P

HyperNeutrino

8:27 PM

:(

*sees new challenge

*time to answer! :D

Mr. Xcoder

Me too

Assembly

HyperNeutrino

*oh wait except it's bad D:

Mr. Xcoder

I might have ninja'd you xD

HyperNeutrino

?

maybe :P

4 view, 3 CVs... rip

Mr. Xcoder

@HyperNeutrino Downvote such that we can VTD

HyperNeutrino

8:30 PM

no wait for OP to see comment

New Main Posts

-1

Q: using assembly code to create a menu

Using assembly code create a menu system program that: (i) takes two numbers from the user; (ii) either adds, subtracts or multiples them depending on the user’s choice.

assembly

Mr. Xcoder

@HyperNeutrino You forgot to take the tab trick into consideration

HyperNeutrino

what is the tab trick?

Mr. Xcoder

In other words, look on main.

HyperNeutrino

oh :P

Mr. Xcoder

8:32 PM

You have 4spaces if instead of ` if`

Trying to golf further

HyperNeutrino

182 bytes

Mr. Xcoder

Nice

@HyperNeutrino 181 bytes, keeping in mind that you always receive a sorted list as input.

HyperNeutrino

Thanks

174 bytes

Mr. Xcoder

Just about to try sth similar

HyperNeutrino

I mean 173

Mr. Xcoder

8:43 PM

yes, 173

caird coinheringaahing

I've just realized I haven't done any difficult Jelly in 3 days

Mr. Xcoder

@cairdcoinheringaahing Jelly hyper-training?

caird coinheringaahing

Yeah

HyperNeutrino

Lack of practice brings loss of familiarity.

caird coinheringaahing

My last message is "I've taken a break, Project Euler and Jelly hurt"

HyperNeutrino

8:45 PM

That's why I haven't been able to golf in Jelly as well. I haven't practiced in too long.

caird coinheringaahing

@HyperNeutrino I got stuck on operator precedence and I'm revising for end of year exams so I haven't had a lot of time to do any

Mr. Xcoder

@cairdcoinheringaahing PE is not that hardcore

HyperNeutrino

Ah, okay.

caird coinheringaahing

@Mr.Xcoder I had sports day yesterday and climbing comp today though and my legs are killing me

Mr. Xcoder

Someone is active :)

caird coinheringaahing

8:48 PM

On PPCG

HyperNeutrino

:o a PPCG-er that did something physically active

caird coinheringaahing

@HyperNeutrino aside from one answer yesterday, I haven't actually posted on SE for about a week

Mr. Xcoder

@HyperNeutrino Your algorithm is extremely slow for [22,24,26,30]

HyperNeutrino

@Mr.Xcoder Not surprised :P it checks too many things

Fortunately it's a golf not a fast-code :D

Mr. Xcoder

You should mention that, it did not finish in ~2 mins on my device

HyperNeutrino

8:49 PM

Ah. Okay. I will acknowledge that fact.

Mr. Xcoder

You don't need range(1,1+a[-1]), 169 bytes, you can have range(a[-1]) instead

HyperNeutrino

oh hm. thanks

Mr. Xcoder

I think

caird coinheringaahing

Look at my rep activity since I joined

Mr. Xcoder

I am not completely sure

@cairdcoinheringaahing Look at mine

10 hours ago, by Mr. Xcoder

caird coinheringaahing

8:52 PM

@Mr.Xcoder The peaks in the middle of mine are the semicolon-# craze

Mr. Xcoder

Mine are the xkcd craze

caird coinheringaahing

programmer5000 is back!

Mr. Xcoder

Suspension period ended?

caird coinheringaahing

Yeah but don't talk about it

Mr. Xcoder

He had a self-voting sock or sth?

John Hathwood

8:55 PM

Tetris now runs on my camera

Lovely

HyperNeutrino

._. what did caird just say

Mr. Xcoder

@HyperNeutrino 168 bytes, print is a statement in Python 2.

HyperNeutrino

whoops I made that mistake earlier :I thanks

That huge peak is when I got my information reassociated after deletion :P

caird coinheringaahing

@HyperNeutrino +6000 odd?

Mr. Xcoder

@HyperNeutrino Still good to have you back

HyperNeutrino

8:59 PM

:)

@cairdcoinheringaahing what?

oh you meant that incident

no that was getting the bonus at an awkward time

Mr. Xcoder

It's 00:00 here :P

caird coinheringaahing

its 22:00 here

and you shouldn't share information of yourself on the internet. Didn't you pay attention in school online safety messages? :P

Mr. Xcoder

@cairdcoinheringaahing There are no such things in my school

HyperNeutrino

no +6000 didn't actually show up in my inbox lol

Was I supposed to pay attention to anything in school?

Mr. Xcoder

I was in the mountain side with my parents for ~1 week: +40, +65, +10, sth like that. First day I arrived home: +170

caird coinheringaahing

9:01 PM

@HyperNeutrino computer science?

HyperNeutrino

Nope. There's no Grade 9 CS course.

I'm taking Grade 11 CS online though next year.

Mr. Xcoder

@cairdcoinheringaahing We have a subject called "Informatics", and you are supposed to write good C++ code :?

I've been programming in C++ ever since the 5th grade!! That's awful

caird coinheringaahing

We're just learning Python because no-one in my school (bar a few people) know how to code

Mr. Xcoder

@cairdcoinheringaahing Lucky you!

caird coinheringaahing

its why all these are in Python

Mr. Xcoder

9:04 PM

And the NATIONAL OLYMPIAD only accepts C++, C or Pascal!

Business Cat

In my grade 11 CS we used C++ but we only did simple stuff, never had to deal with pointers much and didn't use classes

HyperNeutrino

wait not even java

Mr. Xcoder

@BusinessCat Seems like the same thing I've been doing in school for 3 years

@HyperNeutrino No, not even Java

caird coinheringaahing

@HyperNeutrino no-one likes/uses Java

HyperNeutrino

hey I use it

Mr. Xcoder

9:05 PM

ONLY C++, C and PASCAL

HyperNeutrino

and it's fine

not my favorite language though

Wait WHAT PASCAL of all things

Business Cat

But who prefers C over Java

HyperNeutrino

welp rip gtg now. o/

Mr. Xcoder

Exactly!

caird coinheringaahing

I'm trying to think of the best way to show my disgust

Business Cat

9:06 PM

I'd rather write verbose code than have to struggle to not get a seg fault every time I want to do something

caird coinheringaahing

How about: "WHAT!! How dare they! storms off in anger"

Mr. Xcoder

@HyperNeutrino Python and Java have built-ins, and they make the students think less... the professors say.

caird coinheringaahing

@BusinessCat I'd rather write user friendly, easy to use, clear code in Python than OOP from day one with Java/C#

2

musicman523

Even Python OOP is clearer than Java/C# imo

Mr. Xcoder

And the task in the national olympiad are far too hard.

caird coinheringaahing

9:08 PM

class IAgree: def __init__(self): print('I agree with @musicman523')

Finally! My star bait got a star! (jk, it wasn't starbait)

musicman523

The only think I like better about Java OOP is overloaded constructors

Business Cat

Actually I like Java for larger OOP projects

I don't see what's wrong with it. I mean, interfaces are weird, but you don't really have to use them

Mr. Xcoder

We once had to make a tic-tac-toe game with N lines and M rows, in C++

That's sad ^

caird coinheringaahing

@Mr.Xcoder we had to do that in Processing

(user friendlier Java)

Mr. Xcoder

@cairdcoinheringaahing You're much happier

caird coinheringaahing

9:10 PM

@Mr.Xcoder why?

Mr. Xcoder

@cairdcoinheringaahing Java is easier than C++

Business Cat

I've had to do C++ OOP in one class and it was painful

Mr. Xcoder

@BusinessCat Welcome to my world!

caird coinheringaahing

@Mr.Xcoder I tried learning C++ and failed miserably. I can't even make a Hello World! program without warnings and/or errors

musicman523

It's annoying to have to implement copy/move constructors/assignment operators in every class you write

Business Cat

9:12 PM

I remember on one assignment it was all done except for this one bug. It took me literally hours to find the problem: I forgot a &

musicman523

@cairdcoinheringaahing I used this tutorial since I learned Java first, it may help you

Mr. Xcoder

#include <iostream>
using namespace std;
int main(){
    cout<<"Hello World";
    return 0;
}

@cairdcoinheringaahing ^

caird coinheringaahing

The extent of my C++ skils

and that took me 3 corrections

musicman523

@Mr.Xcoder Plssssss don't teach people who dont know C++ to use namespace

Mr. Xcoder

@musicman523 True

caird coinheringaahing

9:13 PM

This was my original

musicman523

@BusinessCat I was writing code that interfaces with a hardware device over I2C protocol and it was NACKing and returning garbage data. I realized I used a & that I shouldn't have

Mr. Xcoder

@cairdcoinheringaahing golfed, 59 bytes !!!

caird coinheringaahing

@Mr.Xcoder it doesn't work

Mr. Xcoder

@cairdcoinheringaahing it does

Business Cat

@musicman523 So you were getting the pointer when you wanted the value?

Mr. Xcoder

9:15 PM

@cairdcoinheringaahing New challenge

musicman523

@Mr.Xcoder golfed, 52 bytes, adds a trailing newline :P

Mr. Xcoder

I don't use cstudio :)

musicman523

@BusinessCat I was passing in a pointer to a pointer instead of a pointer to a character

So the data was just going into undefined memory on the stack instead of into the array

Business Cat

Heh. Mine was a bit different, I needed the & for a reference

caird coinheringaahing

@Mr.Xcoder I tried to beat the other "is it a __ number" challenge in the sandbox

Business Cat

9:16 PM

References are really bizarre

caird coinheringaahing

What actually are pointers?

Mr. Xcoder

@cairdcoinheringaahing I won't solve it :(

musicman523

@BusinessCat They're really nice in avoiding pointer nonsense

caird coinheringaahing

@Mr.Xcoder why not? Very long if statement in C++

Mr. Xcoder

@cairdcoinheringaahing Some bizzare, obscure, obfuscated and dark creatures

Business Cat

9:17 PM

A pointer holds a memory address

caird coinheringaahing

is there a Python equivilent?

Mr. Xcoder

Not really

Business Cat

Python does pointers implicitly

musicman523

In python, everything is an object

So if you have a dictionary object for example

caird coinheringaahing

gtg learn some Jelly pounds head on keyboard Hey I made a perl program!

musicman523

9:18 PM

And you pass it into a function as an argument

Business Cat

Basically the idea of pointers is to instead of holding values themselves, you just hold the addresses of where they're stored

musicman523

You don't pass the value of the dictionary (AKA make a fresh copy of the dictionary)

You pass in the reference to the dictionary object

Python does this all implicitly

Mr. Xcoder

@DJMcMayhem I was about to up-vote your Vim answer, but I reached the daily vote limit :/

DJMcMayhem

Haha

I guess you'll just have to go unvote something else </sarcasm>

Mr. Xcoder

@DJMcMayhem Or just wait until it's 00:00 UTC

DJMcMayhem

9:26 PM

TBH, right now I'm just trying to get to the repcap since I'm like 6 votes away.

Mr. Xcoder

@DJMcMayhem I just realised I have 170 as well... damn

New Main Posts

0

Q: Is this any number?

Inspired (like 2 others) by this chat message. (and to some extent, my CMC) Given a string as an input, your task is to check whether or not that string is a number. What is a number? This is a list of all input formats that are "numbers": Integers: An integer is a string made entirely of ch...

code-golf number decision-problem

Business Cat

Hmm no one's done it BF yet

Mr. Xcoder

@BusinessCat Which challenge?

Business Cat

Yours

Mr. Xcoder

9:32 PM

Ah. there was an answer: +

But that got rejected

I think that's impossible in Brain-Flak too :/

totallyhuman

@NewMainPosts somebody designs a master regex and everybody follows

Mr. Xcoder

Ok, gtg now, it's nearly 1 AM... Bye

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Rock Paper Scissors, but it's a huge, custom tournament We all know "Rock, Paper, Scissors", and it's pretty variated. A world tournament is held every year, and it's dang popular. However, the contestants are able to bring their own ways of play to the plate, and they play with them. The tou...

betseg

9:53 PM

@betseg i.imgur.com/bAqGgNy.gif .

3

HyperNeutrino

@dzaima @notjagan @Mr.Xcoder @cairdcoinheringaahing I think I've fixed it.

(it being codegolf.stackexchange.com/questions/132622/is-this-any-number/…)

dzaima

-73e-7L

should be falsy

HyperNeutrino

oh hm

totallyhuman

why was it deleted

i was workin on a regex

dzaima

^ me too

HyperNeutrino

10:05 PM

?

Mr. Xcoder

@HyperNeutrino Still failed for .3

HyperNeutrino

oh that's invalid? hm. will fix

Mr. Xcoder

Anyway, the challenge was deleted.

notjagan

@HyperNeutrino I think I fixed your answer, but the challenge was deleted after all

although I haven't tested it thoroughly since I don't have the cases

HyperNeutrino

tio.run/…

Unfortunately, not quite.

Mr. Xcoder

10:07 PM

@notjagan Fails for .3

HyperNeutrino

but thanks

totallyhuman

wait why is ab1 truthy

notjagan

hex

ah that's a shame

whatever, the challenge is gone anyway

Mr. Xcoder

Give up! The challenge is gone

HyperNeutrino

tio.run/…

@cairdcoinheringaahing Why did you delete the challenge?

dzaima

10:10 PM

idk if -1.e1 should be valid

Mr. Xcoder

@HyperNeutrino Gives None for 1LL

totallyhuman

none is falsey

Mr. Xcoder

😐

Really, gotta go... Way past 1 AM

notjagan

this gets it a fair bit shorter

dzaima

another edge case: 0.+.0j

caird coinheringaahing

10:14 PM

I'm gonna redo it tomorrow, it's almost midnight here and I didn't want to have an edit flurry instead of going to sleep. Bye.

Riker

@Dennis ah cool

dzaima

ah okay. So I can keep working on it (and I can get sleep!)

totallyhuman

mm i'm no close to getting a working one though

HyperNeutrino

tio.run/##JY0xDoMgAEV3T0FYgKgEO3Sg5Qa9AWGwCikGkQBN9PQU0vG9/…

Bruce Forte

@cairdcoinheringaahing Sorry just saw it now.. I guess you figured it out by now, if not: I posted it already (here)

totallyhuman

10:22 PM

*whispers* regex is the waaay toooo goooooo

HyperNeutrino

I don't do regex very well though :P

dzaima

@totallyhuman yes. Trough I don't know regex very well too :p

@cairdcoinheringaahing more test-cases for tomorrow: -1.e1 0.+.0j -05AB1E abc+5j (space separated)

HyperNeutrino

+1 for -05AB1E

dzaima

@cairdcoinheringaahing and PLEASE replace the horrible unicode − with -

unfortunately I don't know any language with compressed regex so SOGL will have to do..

totallyhuman

:o did you finish the regex?

@dzaima ohhh that's why mine was breaking ><

DJMcMayhem

10:34 PM

@dzaima V does

Kinda

dzaima

@DJMcMayhem the probem is I don't know V

DJMcMayhem

What are you trying to do? Would you be interested in learning it?

dzaima

the latest deleted challenge

DJMcMayhem

That is a fantastic challenge for V, although the spec isn't too great

dzaima

@DJMcMayhem Yeah, it's pretty bad (and it's the reason it's deleted :p)

DJMcMayhem

10:41 PM

Although, that reminds me of a feature I've been wanting to add to V. I'm gonna go do that now

dzaima

I barely know Vim so V ir really out of my learning ability anyway

HyperNeutrino

Not really.

If you learn vim, then you can then try to learn V :P

dzaima

sadly SOGL doesn't have a matches regex function, all regex it has is replace x with y (which wastes 5 bytes)

totallyhuman

11:03 PM

Well... Implement it..?

dzaima

it doesn't help much in challenges what SOGL was made for (and I doubt that in any challenge where that would be useful SOGL would have a chance at winning :p)

Helka Homba

11:18 PM

CMC: Most expensive url with least stuff on the page. e.g. x.com

New Sandboxed Posts

11:30 PM

0

A: Sandbox for Proposed Challenges

Challenge Take a number and output it as a less than 4 digit number using letters and numbers. For example; 270,030 would turn into 2.7K. Key Billion -> B Million -> M Thousand -> K Rules Your code may accept input numbers that include commas, but does not have to. Numbers will only go up...

Christopher

Anyone want to teach me the ways of writing a quine?

Those who say Python 2 > Python 3 are just wrong. Do the math

programmer5000

11:45 PM

I'm looking for a golflang on TIO where a numeric literal prints something, I don't care what

Christopher

@programmer5000 welcome back

Mr. Xcoder

@programmer5000 Other than itself? Like 1 prints blahblah?

programmer5000

I'd prefer if it is an obscure language

@Mr.Xcoder it dosen't matter, as long it prints something

@Christopher thanks!

Christopher

@programmer5000 i got a week long suspension for the same reason :P

dzaima

@programmer5000 any number?

programmer5000

11:49 PM

Yes, I don't care which

Does anyone want to make a bot for this:

22

Q: Team of The Hill!

Note: if you would like to participate, you need to register. This challenge was inspired by @HelkaHomba's excellent challenge Red vs. Blue - Pixel Team Battlebots. That challenge was probably the best one I've seen on this site. Ever. My challenge is still a lot different, but HelkaHomba dese...

grid game king-of-the-hill javascript

dzaima

maybe

miles

CMC: Generate the SHA256 round constants. These are (in hex) the first 32 bits of the fractional parts of the cube roots of the first 64 primes (2..311).

programmer5000

My cmc parser just crashed

Christopher

@programmer5000 i reposted a bot

dzaima

@programmer5000 doesn't almost any golfing language do that?

but if you want obscure, go with 7

musicman523

11:53 PM

@Christopher what reason?

Christopher

@musicman523 Uhh forgot to fix a sockpuppet upvote * 11

musicman523

Ah :P

@programmer5000 Your Sandboxed question says

The first time it is run, it must connect to google.com (a fairly popular site), and a site with an Alexa rank of greater than 1 million, like google.com

. You listed google.com twice, which is why I wrote the comment that I did. Your changes haven't answered my question:

Should it contact Google twice? Should it contact Google and a different popular website? Or should it contact any two popular websites?

programmer5000

Oops!

Is tio down, or is it just me?

tio.run/##M///3/z/fwA

Christopher

@programmer5000 About to say that also

@Dennis tio is broken

Mr. Xcoder

It is. You have to try it a couple of times to get it working

Christopher

11:56 PM

server is down but webpage is up

Mr. Xcoder

@Christopher He already knows

We've had a discussion on this a couple of hours ago

Back-end stuff

Christopher

Ah. Anyone want to teach me how to python quine?

programmer5000

@musicman523 fixed.

Christopher

I can't quine at all

(but don't want to wine)

programmer5000

I can't quine either.

Mr. Xcoder

11:58 PM

Nor do I

Bye!

programmer5000

Only Dennis can quine. Everyone else just copies him.

Christopher

@programmer5000 Nice try starbait :P

Dennis

@Christopher Fixed.

musicman523

@Christopher a Python quine from an old answer

Christopher

@Dennis That was fast

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