The Nineteenth Byte

Phoenix

6:00 PM

Java reflection doesn't let you modify private fields, either.

HyperNeutrino

yes but I think that's because you override the integer cache spot that stores the value of 4 and modify it to 5

totallyhuman

Python 3.4.3 (default, Nov 17 2016, 01:08:31)
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> class DefinitelyAnInt(int):
...     pass
...
>>> DefinitelyAnInt.__add__ = DefinitelyAnInt.__mul__
>>> DefinitelyAnInt(6) + DefinitelyAnInt(7)
42
>>>

Phoenix

It throws IllegalAccessException

You can in C# tho

totallyhuman

there :P

Leaky Nun

@Phoenix I thought you can deprivatize the field

DJMcMayhem

6:01 PM

I would be amazed if someone did it in brain-flak

totallyhuman

wat

Phoenix

^^^ is example 1 out of 700 why Java reflection is terrible

Christopher

@DJMcMayhem I would be amazed if anyone did anything in brain-flak

Business Cat

Pretty sure it could be done in Jelly

Christopher

*anything useful

Leaky Nun

6:02 PM

@BusinessCat sure, just modify the +

Christopher

@BusinessCat Anything that python can do jelly can do :P

Business Cat

But I don't know enough about how the interpreter is set up to actually write it

totallyhuman

@Christopher but python can't do it

Leaky Nun

@Christopher it's probably easier in Jelly

HyperNeutrino

brb doing that

Christopher

6:02 PM

@totallyhuman you broke it all

Use python to redefine + as Leaky said

DJMcMayhem

@Christopher Hmph. I've done some useful stuffs

Christopher

@DJMcMayhem Did you write Windows 8?

DJMcMayhem

Like dis one

Christopher

Oh wait nvm windows 8 is not useful

DJMcMayhem

But I don't know if you can call anything on PPCG useful so...

totallyhuman

6:04 PM

“globals()['atoms']['+'].call=int.__mul__”ŒV

Christopher

@DJMcMayhem I mean I am here

:D

totallyhuman

i think that would work

Leaky Nun

tio.run/##y0rNyan8//9Rw5zEkvzc4mh1bfVYveTEnBzb/…

oops, ninja'd

HyperNeutrino

Well technically this is more accurate

Phoenix

@LeakyNun What does ; do?

HyperNeutrino

6:06 PM

concatenate

totallyhuman

but who gives a damn about accuracy in ppcg? o0

HyperNeutrino

but the eval becomes None

Leaky Nun

@Phoenix I don't know why it doesn't work without it

HyperNeutrino

so it doesn't matter

@LeakyNun I tried using no separator and using ð but neither worked.

totallyhuman

wait + isn't overloaded to add and concatenate?

Leaky Nun

6:07 PM

@totallyhuman yes but the latter is a side effect

totallyhuman

why?

Leaky Nun

you're supposed to use ; for concatenate

totallyhuman

oh

HyperNeutrino

>>> “abcd”+“efgh”
<<< aebfcgdh

totallyhuman

wat

HyperNeutrino

6:07 PM

interleaves

totallyhuman

cartesian sum?

HyperNeutrino

because strings are just lists of characters

Jelly doesn't have strings

Business Cat

Because it adds corresponding elements

Leaky Nun

it's a side effect.

it's an unintended feature.

Business Cat

It just so happens that + works with strings

Christopher

6:08 PM

Yeah in jelly everything is a bool

Leaky Nun

stop using it.

totallyhuman

so it is cartesian sum

@Christopher that's boolfuck

HyperNeutrino

>>> [1,2,3]+[4,5,6]
<<< [5, 7, 9]

so yes, vectorizing sum

Leaky Nun

@totallyhuman the internal representation is ["a","b","c","d"]+["e","f","g","h"]

Christopher

@totallyhuman Wait you join here after me then pass me in rep and then insult my esolang knowledge... Sheesh young people these days

Leaky Nun

6:09 PM

becomes ["ae","bf","cg","dh"]

which is very messy

totallyhuman

ye ik

Christopher

</humor>

totallyhuman

@Christopher how much older are you? :P

Christopher

@totallyhuman How old are you?

10?

HyperNeutrino

>>> “abcd”+“efgh”L
<<< 4

totallyhuman

6:09 PM

no :P

that's not allowed and my account'd be deleted

HyperNeutrino

*cough*

totallyhuman

your account was a weird case :P

HyperNeutrino

yes it was xD

Christopher

Well several of us knows each others name

HyperNeutrino

I was like literally almost 15

totallyhuman

6:10 PM

i'm 14 turning 15 in a few weeks

Christopher

@HyperNeutrino wait wat?

@totallyhuman Ha punk

HyperNeutrino

at the time

I'm already 15 now lol

Christopher

Bad hyper

HyperNeutrino

but there was misconception

Phoenix

I'm turning 16 on Tuesday

Christopher

6:11 PM

You guys are all young

I am the oldest XD

Phoenix

I'll have to actually learn to drive ;-;

@Christopher No. You aren't.

Business Cat

I'm probably the oldest...

DJMcMayhem

@Christopher Definitely not

Business Cat

Out of who's talking now

totallyhuman

>.>

DJMcMayhem

6:11 PM

@BusinessCat How old are you?

Business Cat

21

Christopher

I was the oldest out of those in the conversation

DJMcMayhem

@BusinessCat Ya got me there

Christopher

@DJMcMayhem You are wat 20?

DJMcMayhem

Almost

totallyhuman

6:12 PM

i'm pretty sure we have people over 21...

Phoenix

Dennis is married.

Business Cat

@totallyhuman Not talking atm though

HyperNeutrino

lol k so totallyhuman is 15- dj is 19 chris is ? phoenix is 16- I am 15

Xanderhall

I'm 24

HyperNeutrino

.o0

Phoenix

6:12 PM

I am not 16 yet

Xanderhall

Just to chime in

DJMcMayhem

@Christopher I'm am the oldest person who just sent this message right now

Christopher

@Phoenix Dennis has a child iirc

HyperNeutrino

@Phoenix "married" is not a number

@Christopher yes and she's around 4-5 by now probably

Leaky Nun

@Phoenix are you here?

Phoenix

6:13 PM

It implies significantly over 21

Or that would be weird.

DJMcMayhem

@Phoenix Not really

HyperNeutrino

@Phoenix 16 -

Christopher

@HyperNeutrino She? Kinda cool

DJMcMayhem

I know many people married at 19

HyperNeutrino

yes

totallyhuman

6:13 PM

Python 3.4.3 (default, Nov 17 2016, 01:08:31)
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> dennis is married
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'dennis' is not defined

Phoenix

Well, what do I know ¯\_(ツ)_/¯

Mr. Xcoder

I think I'm the youngest in the room now :(

DJMcMayhem

Well TBF that's still unusual

Christopher

@Mr.Xcoder 10?

Leaky Nun

@Phoenix R, 68 bytes: function(a)a[a==sapply(1:length(a),function(i)max(c(0,a,0)[i+0:2]))] tio.run/##K/qfpmCj@z@tNC@5JDM/…

DJMcMayhem

6:14 PM

It just isn't necessary to be significantly over 21 to be married

Leaky Nun

@Phoenix would you post it to main?

Mr. Xcoder

@Christopher My account would get deleted, no

Phoenix

@LeakyNun Sure

totallyhuman

@Christopher what is with your first guess being 10

Mr. Xcoder

~14

Phoenix

6:15 PM

Does "Extract Local Maximums" sound good?

Christopher

@totallyhuman Well I mean counting in base 12 so...

HyperNeutrino

Maxima

Phoenix

Really?

HyperNeutrino

@Christopher 12 is still too young for SE

DJMcMayhem

I guess that would make me 0x13 years old

HyperNeutrino

6:15 PM

I am 0xf years old :P

Leaky Nun

@Phoenix sure

HyperNeutrino

Only one year until my hexadecimal age is no longer 1 digit :(

DJMcMayhem

@LeakyNun If you don't mind me asking, how old are you?

totallyhuman

0xe then

Leaky Nun

@DJMcMayhem 1999/06/07, 18 years old and a month and 8 days

Christopher

6:16 PM

@DJMcMayhem Shrug

DJMcMayhem

o_O

Mr. Xcoder

I'm 12 years old in base 12.

totallyhuman

that was very specific

HyperNeutrino

yay leaky nun is now officially an adult :D

DJMcMayhem

I always thought you were older than me

HyperNeutrino

6:16 PM

unless the standard is different where you live

Leaky Nun

@HyperNeutrino yes I'm an adult

Poke

wait SE has age restrictions that actually get people banned?

Leaky Nun

@Poke yes

totallyhuman

pshh standards who needs those

Mr. Xcoder

@Poke Yep

Poke

6:16 PM

i thought everyone just lied about their age on the internet

3

DJMcMayhem

@Poke It's because it's illegal to store information from people < 13 in the US because of COPA

HyperNeutrino

@LeakyNun ok. i was thinking more so like you had already been an adult for longer than 1.whatever months

Leaky Nun

@DJMcMayhem you?

totallyhuman

@Poke POLITIFACT says: mostly true

Leaky Nun

@HyperNeutrino yes I have

HyperNeutrino

6:17 PM

oh ok

DJMcMayhem

@LeakyNun I'll be 20 in November.

Poke

yeah but who is actually divulging that they're <13

HyperNeutrino

what's the threshold?

Leaky Nun

@DJMcMayhem I see

Poke

that seems silly

HyperNeutrino

6:17 PM

@Poke me on chat that's why i got deleted

(except I was talking in past tense ><)

musicman523

CMC: Write the shortest program that prints your Stack Exchange password /s

2

Poke

._.

DJMcMayhem

My girlfriend just turned 20. That was kinda weird

Phoenix

@LeakyNun Possible dupe?

Christopher

The girlfriend part?

Mr. Xcoder

6:18 PM

@musicman523 <insert look of disapproval>

Leaky Nun

@musicman523 Pyth, 4 bytes: 1234

totallyhuman

@musicman523 print 'hunter2'

HyperNeutrino

@musicman523 print('[REDACTED]')

Peter Taylor

@musicman523 7'**

Leaky Nun

@Phoenix rip

musicman523

6:18 PM

@totallyhuman All I see is print '*******'

Phoenix

@musicman523 ಠ_ಠ

Business Cat

@musicman523 print("your Stack Exchange password")

Mr. Xcoder

@musicman523 Python: print('your Stack Exchange password')

musicman523

boooooo

Business Cat

Ninja'd

HyperNeutrino

6:19 PM

wait I just realized that my screen has a polarization cover on it

Mr. Xcoder

Ahhh

DJMcMayhem

@Christopher What?

Phoenix

@LeakyNun It's not the same thing, just similar.

totallyhuman

@HyperNeutrino took you a while..?

HyperNeutrino

yes ><

Phoenix

6:19 PM

I might post anyway and see what the community decides.

Christopher

@DJMcMayhem As in having a girlfriend is kinda weird XD

HyperNeutrino

because I usually don't use the not child computer section in the library

totallyhuman

uh

what?

Poke

@HyperNeutrino heuheu

DJMcMayhem

@Christopher Are you saying it is or asking me if it is? :P

HyperNeutrino

6:20 PM

the threshold for adult is 14

Christopher

@HyperNeutrino hehehe may want to clarify

Leaky Nun

@Phoenix because of how the first and the last elements are treated?

totallyhuman

@HyperNeutrino not in the terms you're speaking o0

HyperNeutrino

I mean for the library card to be accepted on this computer

Christopher

@DJMcMayhem It was a joke. Saying it was weird that you had a GF

Phoenix

6:20 PM

@LeakyNun Because it also consideres values lower than both adjacent.

Leaky Nun

@Phoenix right

Phoenix

Extremes, not just maxima.

HyperNeutrino

ok fine go ahead and star that so everyone thinks I'm an idiot

Christopher

RIP HyperNeutrino out of context stars

Leaky Nun

> extrememes

HyperNeutrino

6:21 PM

@Phoenix extreme memes?

Phoenix

Oops

New Sandboxed Posts

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 ...

HyperNeutrino

or if you're the person who made the music my school used

"stars wars"

Mr. Xcoder

@NewSandboxedPosts Feedback?

totallyhuman

how tricky would it be to parse the formulae on oeis

DJMcMayhem

6:23 PM

→ 8 stars moved to Trash

totallyhuman

bu-but... ok ;-;

Mr. Xcoder

@DJMcMayhem Oh, you can customise the text of n messages moved to Trash?!

HyperNeutrino

@DJMcMayhem I'm really tempted to star that because of the edited trash name but at the same time I feel like that's not a good idea under this situation

@Mr.Xcoder editing

DJMcMayhem

No, you can just edit them

Leaky Nun

@Mr.Xcoder it's just any other message

DJMcMayhem

6:24 PM

It posts a message on my behalf, so I can edit/delete for 2 minutes

Mr. Xcoder

Got it. Thanks.

totallyhuman

dear lord all of you got ninja'd

DJMcMayhem

Actually, I'm not sure if I can delete

Peter Taylor

@totallyhuman Which ones?

HyperNeutrino

wait so you can trash something and then delete it so nobody knows where it went :o

Mr. Xcoder

6:24 PM

@PeterTaylor All of them...

totallyhuman

^

DJMcMayhem

@HyperNeutrino Maybe, I'm not really sure. I could test it though

totallyhuman

or at least try on most of them

Leaky Nun

@HyperNeutrino let's begin with your message ;)

HyperNeutrino

I can go test on a room. I have to go visit that room now anyway.

DJMcMayhem

6:25 PM

→ 1 message moved to Sandbox

Peter Taylor

@Mr.Xcoder Ugh. People don't always follow the style guide, then there are formulae which aren't valid for the first one or two terms, there are cross-references to other sequences, ...

HyperNeutrino

@DJMcMayhem dangit

Peter Taylor

To pick a random sequence, A060654: a(n) = gcd(n, lcm(dd(n))), where dd(n) is the first difference of divisors (ordered by size)

totallyhuman

@PeterTaylor so basically you're saying that just don't even try

Leaky Nun

> max(NA,4,2)
[1] NA
> min(NA,4,2)
[1] NA

Peter Taylor

6:27 PM

You'd be better off trying to parse the Mathematica programs

Leaky Nun

so NA is both smaller and bigger than other numbers

totallyhuman

:c i wanted to make my library infinitely better

Wheat Wizard

@totallyhuman You could just have it pull from the b-files

Leaky Nun

@DJMcMayhem but you can move your move message to create an infinite tunnel

totallyhuman

@WheatWizard yes that's what i'm doing rn

but even those have limits

DJMcMayhem

6:28 PM

@LeakyNun Nope

Mr. Xcoder

CMC: Get the sum of all positive integers up to a positive integer n, without using the Gauss sum, n(n+1)/2

Leaky Nun

@DJMcMayhem ?

@Mr.Xcoder it's n+1...

Mr. Xcoder

Any built-ins are forbidden

totallyhuman

@Mr.Xcoder unobservable requirement

DJMcMayhem

Just a minute

Wheat Wizard

6:29 PM

@Mr.Xcoder Brain-Flak ({({}[()])}{})

Peter Taylor

@Mr.Xcoder ),1b (CJam)

Mr. Xcoder

@LeakyNun typo

totallyhuman

@Mr.Xcoder any builtin?

Christopher

Anyone here play Dota2?

Mr. Xcoder

@totallyhuman Yes any

Leaky Nun

6:29 PM

@Mr.Xcoder wrong ping?

Mr. Xcoder

@LeakyNun Yes

totallyhuman

well then i can't do anything in any language

:P

Leaky Nun

R function(n)sum(1:n)

Mr. Xcoder

sum is a built-in I think

Leaky Nun

@Mr.Xcoder it isn't a built-in that solves your problem

R function(n){s<-0;for(i in 1:n)s<-s+i;s}

Mr. Xcoder

6:30 PM

@LeakyNun Better

Leaky Nun

R f=function(n)if(n)n+f(n-1)else 0

Mr. Xcoder

Anyone willing to post an easy CMC (time for Pyth)?

musicman523

@Mr.Xcoder Including n or not?

Mr. Xcoder

@musicman523 Yes, including n.

Leaky Nun

@Mr.Xcoder solve your own challenge

musicman523

6:32 PM

@Mr.Xcoder lambda s:sum(range(n+1))

Leaky Nun

@musicman523 sum and range are built-ins

musicman523

oh I just saw the built ins forbidden message

Mr. Xcoder

@LeakyNun Ok, but please outgolf me after I finish.

Leaky Nun

@Mr.Xcoder sure

totallyhuman

hehe

HyperNeutrino

6:33 PM

2 new featured questions (or answers), you should go check them out :P

totallyhuman

dunno how to do either of them

:P

Mr. Xcoder

@LeakyNun Outgolf me (without using built-ins): VQ=+ZhN;Z

Leaky Nun

@Mr.Xcoder but what exactly are built-ins?

musicman523

f=lambda s,i=0:s>i and i+f(s,i+1)or s

Mr. Xcoder

=+ is not, but things like sum are. Loops and map are not built-ins.

Leaky Nun

6:35 PM

@Mr.Xcoder is + a built-in?

Mr. Xcoder

No

Leaky Nun

can you define built-in?

musicman523

@LeakyNun These are the problems I have with banning "built-ins"

Mr. Xcoder

@LeakyNun No.

Leaky Nun

@Mr.Xcoder VTC unclear

Mr. Xcoder

6:35 PM

Ok, forget that rule.

totallyhuman

just don't even try to ban builtins and let the community decide

HyperNeutrino

@Mr.Xcoder Jelly, 5 bytes: ẋµJ+/

Leaky Nun

@Mr.Xcoder .U+bZS

totallyhuman

@HyperNeutrino curses i should've tried jelly

HyperNeutrino

assuming I'm allowed to do generate range of the same length as input list

and reduce by addition

without the builtin restriction it's literally just RS (unless there's a builtin)

Mr. Xcoder

6:37 PM

@LeakyNun Without banning built-ins, I can do it in two bytes: sS

Leaky Nun

@Mr.Xcoder good

totallyhuman

RS- goddammit ninja'd

HyperNeutrino

lol

Mr. Xcoder

@LeakyNun Good enough? I mean, is there a one-byte built-in?

Leaky Nun

@Mr.Xcoder of course there isn't

totallyhuman

6:38 PM

,,, in a few minutes, 2 bytes: r#

Mr. Xcoder

Ok, I forgot Pyth is not Mathematica

HyperNeutrino

lol no builtin for sum yet

@Mr.Xcoder you have an excellent memory

Mr. Xcoder

@HyperNeutrino I know

totallyhuman

@HyperNeutrino which lang?

HyperNeutrino

,,,

or no builtin for range?

totallyhuman

6:39 PM

oh it has sum

HyperNeutrino

ok good

totallyhuman

it doesn't have range

@LeakyNun posted

(yet)

@Phoenix Wow.

6:39 PM

@Phoenix upvoted before you said it

musicman523

I'm thinking about writing a point-free golfing language

it's just so much effort

HyperNeutrino

dammit there's no sum in positron

New Main Posts

1

Q: Extract Local Maxima

Given an array of positive integers, output an array of all the elements that are greater than or equal to the two adjacent ones. The first and last element of the array are special cases, and must be greater than their one adjacent element. You may assume that the array contains at least two el...

totallyhuman

@HyperNeutrino what do you have in positron?

HyperNeutrino

nothing

Positron, 47 bytes: a=function{if$1then{return$1+a@($1-1)};return0}

totallyhuman

6:42 PM

i wanna make a practical language as well except everything i think of is pythonic

'cause i like python

@HyperNeutrino your code literally has no whitespace

HyperNeutrino

exactly

:P

(there's also no and operator... um...)

DJMcMayhem

@LeakyNun When I try it, it doesn't give an error or anything, it just silently fails and the messages stay in the same spot.

Leaky Nun

@DJMcMayhem alright

totallyhuman

@HyperNeutrino since a only takes a single argument, do you need to parenthesize $1-1?

Phoenix

Otherwise it would (a@$1)-1

HyperNeutrino

6:45 PM

yes

Phoenix

I think

HyperNeutrino

phoenix is right

totallyhuman

mm ok

makes sense

HyperNeutrino

if @ had lower precedence than - then bad things would happen

because then it would do return ($1 + a) @ ($1 - 1)

totallyhuman

o0

HyperNeutrino

6:47 PM

(since + and - have to have the same precedence)

Riker

@musicman523 foo, 9 bytes: "hunter2"

totallyhuman

@Riker i already made that joke :P

Phoenix

Is `hunter2' a reference to something?

Mr. Xcoder

Done it in Python :)

totallyhuman

@Phoenix bash around the bash

Riker

6:49 PM

@totallyhuman aw damnit

@Phoenix yes

bash.org/?244321

Phoenix

@LeakyNun Where's the Jelly and R answers? You already wrote them.

Leaky Nun

@Phoenix I don't want to feel like cheating

Mr. Xcoder

Anyone help golfing this?

1

A: Extract Local Maxima

Python 3, 84 bytes lambda l,k=[0]:[l[i]for i in range(len(l))if l[i]>=(k+l+k)[i]and l[i]>=(k+l+k)[i+2]] Try it online!

totallyhuman

@Mr.Xcoder enumerate might be shorter

Mr. Xcoder

Hmm, doing it now.

totallyhuman

6:53 PM

also recursion might be shorter too

Mr. Xcoder

@totallyhuman I don't like recursion xD

totallyhuman

me neither lol

but that's how everybody out-golfs me

Mr. Xcoder

@LeakyNun Thanks

Wheat Wizard

recursion is the best thing about python golfing

Business Cat

Recursion is awesome once you fully grasp how to use it

Wheat Wizard

6:54 PM

Thats why I really like golfing in Haskell.

HyperNeutrino

:o I got an answer to snowball koth

0

A: Snowball Fight KoTH!

Defender, Python Reloads when neither player has snowballs. If it has snowballs, it throws. If it doesn't have snowballs, but the opponent does, it ducks if it can, otherwise reloads. def get_move(turn, snowballs, opponent_snowballs, ducks, opponent_ducks, max_snowballs): if snowballs == op...