The Nineteenth Byte

New Main Posts

09:02

0

SageMath is an open-source mathematics software system, built on Python 2. Its extensive math library support makes it a strong choice for golfing in math-based challenges. What tips do you have for golfing in SageMath? One tip per answer, please. Tips should be specifically for SageMath, and no...

Destructible Watermelon

should we make a core war room?

Anonymous

I've committed and pushed the initial, barely-cleaned-up-from-four-years-ago version of my C++ duck typing library. C++ nerds may find it interesting and/or horrifying.

betseg

@Mego i googled i dont understand, wat iz

Beta Decay

09:19

@MartinEnder I've added a few more clarifications and test cases

5

A: Sandbox for Proposed Challenges

The HexaGolf Series code-golf ascii-art hexagonal-grid This will be a series of challenges based upon ASCII hexagons. HexaGolf: Wordagons - Posted HexaGolf: Rotatagons - Posted HexaGolf: Validagons Challenge Given an ASCII art shape, you must find out whether the shape is a regular h...

@betseg Is that Turkish challenge difficult or not? I might give it a go

betseg

@BetaDecay i dunno, looks easy if your lang likes strings tho

Beta Decay

I see. Python it is

betseg

That vowel harmony rules tho

zyabin101

@betseg Duck typing is when a lang bases on the contents of the variable to choose its type, and the variable is not restricted.

Today, it's now some kind of a "Penguin Club" out there.

Penguins. Penguins everywhere on the desktop that's not been unencumbered by the browser/modem windows.

betseg

@zyabin101 ~~AAAAA CYRILLIC~~

zyabin101

09:34

I'm using a Russian system.

Oh noes, now they are too quick.

Now there's a small chance of Santa penguins spawning, I'm a-fraid.

Now there's one, but very slow.

@DestructibleWatermelon I'm interested in the topic, I think we should.

Destructible Watermelon

kk lets do that

zyabin101

Let me do that.

(Don't worry, I'll add you as an owner.)

Destructible Watermelon

whoops, I accidentally already did...

sh**

wat do now

zyabin101

Thanks.

I'll neither talk in here, nor talk...

Destructible Watermelon

...

zyabin101

09:44

Seems I'll still do discourse about Core War in TNB or the chat Sandbox... ;_;

Destructible Watermelon

why not in the core war room?

Martin Ender

@BetaDecay I feel like the rule of internal spaces being optional really messes everything up, especially since space are valid characters for internal hex cells as well.

zyabin101

1 min ago, by zyabin101

I'll neither talk in here, nor talk...

Martin Ender

I'd ditch that and just require things to be laid out on the staggered grid as usual.

Destructible Watermelon

@zyabin101 I don't understand what that means...

Would you like t see my crappy warrior?

Beta Decay

09:47

@MartinEnder Oh, alright, that's easier

Destructible Watermelon

hmmmmm, I need to add attack detectors to this, then it will be great!

OH THAT'S WHY MY CODE WAS FAILING!

zyabin101

Okay, so I'm building a so called "web of guys" that I'm gonna use in my thoughts chat room (if I ever get 1000 rep to build one). Destructible Watermelon, you're the second in that web.

zyabin101

10:13

There's a Sense HAT emulator now. It's cool.

I registered on Trinket, but it put some spam trinkets in my profile.

Thanks. :I

Destructible Watermelon

@zyabin101 not sure what that means... is it good?

zyabin101

Yup, because those in the web of guys can chat in my thought room.

Destructible Watermelon

yay

zyabin101

Here, my first trinket.

Destructible Watermelon

that's odd... the space between each copy of the code increases...

zyabin101

10:26

I like it how Trinket displays a preview of my trinket. :3

When it's command line :)

My first blocks trinket.

Trinket is probably the first service where you can program Python with blocks.

Stewie Griffin

I can't find a single challenge where the task is simply to reverse a string. An I missing one?

Never mind, found one

Emigna

10:42

That score...

Stewie Griffin

@Emigna It's quite good if you take the absolute value...

Emigna

True

Stewie Griffin

Well, it's actually not the same, since it [1, 2, 'Hello'] should become ['Hello', 2, 1], not ]'olleH' ,2 ,1[...

Still trivial in most languages though,,,

Emigna

Same as that challenge it will be most interesting in esolangs.

But it might be close enough to be considered a dupe, or a trivial change to an existing challenge

Stewie Griffin

@Emigna Or simply just "This isn't even a challenge".

Emigna

10:49

Or that, yes

Stewie Griffin

I bet I could get my first answer in Jelly, Pyth, cJam, APL +++, even though I've never even seen the documentation of those langs. (Of course, I wouldn't have the time to actually answer before someone else posted a bunch of answers, but I could have).

Destructible Watermelon

ok, found the bug

Emigna

It is actually slightly wonky in 05AB1E since input gets auto-evaled as a list for that test case

still only a couple of bytes though

TùxCräftîñg

mmomormornmornimorninmorning

Emigna

good afternoon

zyabin101

10:55

@TùxCräftîñg gninromninrominromnromromomm

Stewie Griffin

@Emigna I kind of want to create it though, for the same reasons we have these (heavily upvoted) challenges: A simple cat program, "Hello, World!", Primality testing etc.

TùxCräftîñg

-2

A: Tips for golfing in Python

Consider using Sage instead It is more or less a Python extension and thus a lot that works in Python also works in Sage. The benefits: Equivalents or near-equivalents of certain functions are implemented by default, in particular I am almost certain that you never have to import math. There a...

.... no

Emigna

@StewieGriffin It is nice that this site has a mix of simple and more advanced challenges. That lets more people have a go at it. Simple challenges can easily get 50+ submissions while harder ones usually only get a few.

As long as you design the challenge to be inclusive, it should be okay

Seems like that was the issue people had with the 1-d one

So simple most languages can do it, but too strict I/O format excluding more interesting languages

Destructible Watermelon

hi tux!

I realised my reverse imp had accidentally been a bomber, but I'm fixing it up now

also, I made a two line bot that beats your bot :P

mov 2,3
jmp -1,>-1

TùxCräftîñg

whatbot?

smartbot or evil?

Destructible Watermelon

11:04

smartbot

TùxCräftîñg

wat

Destructible Watermelon

also I haven't seen evil

gimme

TùxCräftîñg

;redcode-94b
;assert 1
;name evil
;kill evil
;author tuxcrafting
;strategy replicator
;date 2016-Sep-08
;version 1

start	mov 0, unnamed
	add.a #1, -1
	add.ab #1, -2
	seq.i *start, unnamed
	jmp start
	spl unnamed
loop	jmn attack, @ptr
fatck	add #10, ptr
	jmp loop
attack	mov ptr, @ptr
	jmp fatck
ptr	dat #0
unnamed	end

a simple replicator

Destructible Watermelon

my bots bugging right now, so I'll get on to beating that one soon

TùxCräftîñg

i am sure it can be optimized

Destructible Watermelon

11:08

lets rumble!

I made a bot that copies it's code, but I'm not good at it and it's real big

also it still beats your because of the bomber

two liner also beats your bot...

the bomber win 76, you won 24

hue

TùxCräftîñg

y u borked smartbot ;_;

Destructible Watermelon

I really need to increase the efficiency of the main program...

two liner beats evil...

I though replicators were paper and bombers were rock....

I guess rock beat paper this time...

without the bomber part, let's see the score...

evil wins 93

also you need to stop shooting yourself

TùxCräftîñg

to stop bots to bomb itself, it would need to keep track of the current bot position and desactivate the scanner when needed

but it would be hard

Destructible Watermelon

no, it should just need to make the scanner swap with a bomber when it finds a bot

protip

TùxCräftîñg

one day i created a scanner injecting a imp when it find a enemy

Destructible Watermelon

11:15

I don't know, what is the point of a scanner when you could just replace the scan with bombs

TùxCräftîñg

it dont ended very well

Destructible Watermelon

@TùxCräftîñg that would be really easy...

in fact I thought of that

TùxCräftîñg

the entire core was full of imp

Destructible Watermelon

this is why you put a process that just places data behind the code

Stewie Griffin

@Emigna I've tried adding it to the Sandbox. I'm curious how it will be received, since it's quite simple in a bunch if languages.

Emigna

11:21

Good call. The sandbox should hopefully give some input into possible reception.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Reverse a string There are a number of "do this and that" with a string or array, but not a single challenge where the task is simply to return the reversed string. This challenge follows in the footsteps of: Hello, World! Simple cat program Is this number a prime The challenge is simply: T...

Destructible Watermelon

hooray it's no longer immediately dying!

hooray its working now!

I have no idea how but suddenly my program bombed your program

what

that's not even in the program...

aw yes, my plan worked!

wait i died anyway ._.

TùxCräftîñg

;redcode-94b
;assert 1
;name evil
;kill evil
;author tuxcrafting
;strategy replicator
;date 2016-Sep-08
;version 2

END	equ 10

start	mov 0, END
	sne.i @start, magic
	jmp end_
	add.a #1, start
	add.ab #1, start
	jmp start
end_	spl END-6
magic	dat #666

Destructible Watermelon

is this an improvement?

TùxCräftîñg

now it dont attack: it's simply a replicator

but it's quicker and more hard to kill

Destructible Watermelon

11:32

error

TùxCräftîñg

?

Destructible Watermelon

improper placement of equ, of END, of END

TùxCräftîñg

ah

Destructible Watermelon

fix up pls

Stewie Griffin

@Emigna I was a (obviously) a dupe :/ Just couldn't find it.

TùxCräftîñg

11:33

;redcode-94b
;assert 1
;name evil
;kill evil
;author tuxcrafting
;strategy replicator
;date 2016-Sep-08
;version 2

CEND	equ 10

start	mov 0, CEND
	sne.i @start, magic
	jmp end_
	add.a #1, start
	add.ab #1, start
	jmp start
end_	jmp CEND-6
magic	dat #666

fixed

Emigna

@StewieGriffin Yeah, I didn't find it my search either. Peter is a beast at finding dupes!

Destructible Watermelon

gotcha! I won one, but now lets play 100

Stewie Griffin

@Emigna Peter, the dupe eater!

TùxCräftîñg

evil can draw or lose

Destructible Watermelon

@TùxCräftîñg, it gets destroyed by reverse imp

Also two liner won all matches against that one

oh wait that was my bot ._.

two liners a bit better than your bot in a fight, but always destroys mine ._.

I really need to implement a dodge thing

TùxCräftîñg

11:38

;redcode-94b
;assert 1
;name evil
;kill evil
;author tuxcrafting
;strategy replicator
;date 2016-Sep-08
;version 2

CEND	equ 10

start	mov 0, CEND
	sne.i @start, magic
	jmp end_
	add.a #1, start
	add.ab #1, start
	jmp start
end_	spl CEND-6
	jmp 0
magic	dat #666

Destructible Watermelon

change?

TùxCräftîñg

revised: now it's very hard to kill

Destructible Watermelon

"hard to kill"

I'll tell you whats hard to kill

actual replicators

TùxCräftîñg

but due to the high number of thread spawned, it draw near everytime

now it get stuck in a inifinite loop after replicating itself

Destructible Watermelon

wow, good job

TùxCräftîñg

11:40

so if the main ip is killed, it's needed to destroy every copy to kill it

and if evil is rewritten by a imp, 60 imps generated

Destructible Watermelon

lets see if it can actually beat two liner?

oooh, my bot won better that time, instead of your bot, I guess one of those two events was a fluke

wait, I was accidentally using old version ._.

also, not near everytime with my bot, anyway

two liner, go!

two liner destroys your bot still

you need to move faster

TùxCräftîñg

after ~4 copies, evil is really slow because of the high number of threads spawned

Rizze

hi

TùxCräftîñg

the bot is more quick if you remove the jmp start at the end

@Rizze hi

Rizze

anyone can suggest me an easy codegolf challenge?

Destructible Watermelon

11:46

wait, if it just loops, how does it win more times?

I need to improve my bot...

TùxCräftîñg

because now the only way to kill it is to destroy every copy

Destructible Watermelon

but then it still dies, it just draws instead of losing, how does it win more now? because it moves slower? O.o

Emigna

@Rizze Any special type of challenge you're looking for? Depending on your chosen language, difficulty can differ. A good bet is usually to check the list of challenges for questions with a lot of answers.

Rizze

@Emigna I know HTML, CSS and JS.

Emigna

@Rizze JS should able to complete most challenges so that should be okay. JS is usually one of the first languages that get an answer in a new challenge thought, as many people know it.

Destructible Watermelon

11:50

how did you kill me when you are just jumping...

TùxCräftîñg

because it's evil

Destructible Watermelon

but, but how?

TùxCräftîñg

jmp 0

Rizze

@Emigna Do you know a good language to study?

TùxCräftîñg

ruby/python

and assembly

Destructible Watermelon

11:51

exactly, how does that kill me?

flawr

@Rizze Haskell

TùxCräftîñg

^

Emigna

@Rizze: codegolf.stackexchange.com/q/92585/47066 doesn't have an answer in JS yet and should be pretty easy

TùxCräftîñg

@DestructibleWatermelon because since a tick take wayyyyy longuer, it draw really quickly

Rizze

@flawr Does it work on linux?

Destructible Watermelon

11:52

BUT HOW IS IT WINNING!!!!!!

I'M NOT TALKING ABOUT DRAWS, HOW IS IT KILLING MY BOT WITHOUT DOING ANYTHING?

flawr

@Rizze Sure!

TùxCräftîñg

wat

it wins??????

Rizze

Have you aguide for haskell? @flawr

Destructible Watermelon

YES

IT WINS A LOT MORE THAN THE PREVIOUS ONE

TùxCräftîñg

WATWATWATWAT

Destructible Watermelon

11:53

SOMEHOW MOVING SLOWER HELPS IT

TùxCräftîñg

@Rizze haskell.org/tutorial

flawr

@Rizze haskell.org/platform

Destructible Watermelon

THAT WAS MY REACTION TOO

Rizze

thanks

flawr

@Rizze learnyouahaskell.com

TùxCräftîñg

11:54

> This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License because I couldn't find a license with an even longer name.

hahaha

i know why it wins:

Destructible Watermelon

AHAHAH I HAVE YOUR BOT BEAT NOW!!!!

TùxCräftîñg

you bot kill itself

so evil win

Destructible Watermelon

NO, it does not kill itself, but I figured it out now

TùxCräftîñg

@DestructibleWatermelon °Д°

Destructible Watermelon

I added a longer attack range

well, I think its beat

lets see

yup, I got it beat

lets see again

Rizze

11:57

@Emigna I don't understand how the input/output of the challenge works if I can be honest.

Destructible Watermelon

now I just need to protect from bomber

out of 1000, evil got one win, I won 548

evil is great at draw

Rizze

"The program then puts out Either 'Y' or 'N', Which determines weather or not the given animal is allowed onto the ark."

How the program understand that?

Emigna

@Rizze As I understand it, the program takes as input a list of pairs of [Animal, gender]. Then for each outputs whether or not it is allowed. Only 1 animal of each gender is allowed.

zyabin101

> It's not just you! inference.phy.cam.ac.uk looks down from here.

aaaaagh

Emigna

The program can also take input from user instead of a list

Destructible Watermelon

12:01

zyabin, do you have a core war warrior?

Rizze

ahhh

@Emigna I understood, thanks.

TùxCräftîñg

@DestructibleWatermelon yes

Emigna

Great :)

Destructible Watermelon

@TùxCräftîñg You'll need to make a new improvement to beat my bot now

;name revimp
;author Destructible Watermelon

spl bomber
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
mov 13,-15
sne 12, 10
jmp 3
mov 8, >8
jmp -3
mov 5,-2
mov 6,5
mov 2,-5
jmp -7
jmp -42
mov -5, >8
dat #-77
dat #-77
dat #-38
bomber:djn 0,2
jmp 2
dat #2000
mov -5,-6
mov 3,-16
mov 3,-16
jmp -32
jmp 3
mov 8, >8

sorry about length, I'm no good at self replicators

TùxCräftîñg

what the lolz is that

Destructible Watermelon

12:02

bad self replicator

TùxCräftîñg

look at evil

it's a simple replicator

Destructible Watermelon

also one that beats your bot

hue

TùxCräftîñg

and pretty quick

Destructible Watermelon

not quick, its slow now...

my bot is faster

also it was easier to tack on the attack

TùxCräftîñg

it's because it fork itself

but without it it's a quick replicator

and if it's easy to kill it's because it dont defend/attack

Destructible Watermelon

12:04

I like to imagine my bot impaling your bot with a spear when it finds it from the graphics

Rizze

function test(a, b, c, d) {if(a+b===c+d){return "N"}else{return "Y"}}

2

Q: Noah's (upgraded) ark

As preparation for the nth Exodus, Noah decides to write a program that will decide If he will let animals on his ark. However, Noah wants to go back to grass roots. Thus he decides that the program should be as small and as simple as possible. GOAL: Recreate the Contrabulous Choosematron, in ...

code-golf permutations

Is ok my code?

Emigna

That doesn't look like it completes the task

TùxCräftîñg

Destructible Watermelon

two liner beats your bot when slightly modified

Rizze

@Emigna why?

Emigna

12:08

I may be misunderstanding, but do you take into account several animal inputs of varying gender and output Y/N for each?

Qwerp-Derp

Hello peeps!

Rizze

If I take 2 time the same string and boolean, It returns false.

wait

i've an idea

Emigna

"female monkey" -> Y, "female monkey" -> N, "male monkey" -> Y, "female snake" -> Y

Rizze

Ye

Emigna

it should either take a list as input or ask the user to repeatedly input a string (I think)

Rizze

12:09

oh wait

Qwerp-Derp

Argh I don't understand why people post SO questions here

Destructible Watermelon

zyabin101

@Qwerp-Derp Hello peep!

Qwerp-Derp

Allo allo

zyabin101

Allo allo

Destructible Watermelon

12:12

it looks more like impalement when its actually moving

Qwerp-Derp

Ummm

I might want to do some challenges with LC

Destructible Watermelon

that is great out of context quote

I might see what happens when the second thread is removed

Qwerp-Derp

So the only valid chars in Woefully are | and <space>?

zyabin101

@Qwerp-Derp Yeah.

Qwerp-Derp

Wow

Destructible Watermelon

12:15

newline

zyabin101

Else, the program will return confuse :(

^^

Destructible Watermelon

also there is a bug in interpreter I have to fix :(

concerning line wrapping

Qwerp-Derp

I kinda want to include a builtin that detects the length of a binary string in LC

What should the char (or chars) be?

Destructible Watermelon

@TùxCräftîñg it turns out the draws were because my bot was a little slow

Qwerp-Derp

I'm thinking #

betseg

12:18

Hai

Destructible Watermelon

@betseg have you played core war?

betseg

@DestructibleWatermelon nope

Destructible Watermelon

;name SOME DAYS YOU JUST CAN'T GET RID OF A BOMB
mov 2,-1
jmp -1,<-1

@betseg you should

betseg

@DestructibleWatermelon k

Destructible Watermelon

there is the bot that beats tux' bot and my bot.

betseg

12:20

I'm in lightrail train thing ill play when i go home

TùxCräftîñg

@DestructibleWatermelon what bot? evil or smartbot?

Destructible Watermelon

both

also I might check it does beat my bot

TùxCräftîñg

o________________________o

Destructible Watermelon

mine can beat that one, can't beat the original one though

;name SOME DAYS YOU JUST CAN'T GET RID OF A BOMB
mov 2,3
jmp -1,>-1

I need to make bot better, maybe start again...

with better self replicator

TùxCräftîñg

;redcode-94b
;assert 1
;name watimp
;kill watimp
;author tuxcrafting
;strategy relly slow imp
;date 2016-Sep-08
;version 1

	spl 0
	mov 1, 5
	mov 1, 5
	mov 1, 5
	mov 1, 5
	mov 0, 5

implance + spl 0 = ???

Destructible Watermelon

12:24

you know that you can just

spl 0
mov 0,1

TùxCräftîñg

yes

but this go a bit further

Destructible Watermelon

looks like a draw, here

TùxCräftîñg

it never lose, it never win, it always draw

Destructible Watermelon

lets play many

it won...

wat

TùxCräftîñg

ಠ_ಠ

betseg

12:27

Guys y u no golf a rubik's cube

TùxCräftîñg

becuz rubiks iz hard

betseg

@TùxCräftîñg 4 pipul did hard things updoot em all

TùxCräftîñg

Telescopes let you see the past; FTL lets you visit the future. — iAdjunct Feb 13 at 15:14

TùxCräftîñg

12:51

Object#silence

zyabin101

@TùxCräftîñg Object#silence.willFall()

betseg

So silent here

Lemme say that

I use tabs and emacs

TùxCräftîñg

3

A: Spell out the Revu'a

Brainfuck, 40 bytes My console doesn't support Right-to-Left characters, but I don't think it will work :c ++++++++++>,[>,]<[<]>[[<+>-]<[<]>[.>]>] Ungolfed: ++++++++++> # Store 10 (Newline) ,[>,] # Store input <[<]> # Goto first character [ # While next character [<+>...

the comments ._.

quartata

I had a horrible nightmare that I only had 21 rep on PPCG

TùxCräftîñg

@betseg WATWATWATWAT

@betseg ಠ______________________________________________________ಠ

quartata

12:59

OK phew all my green Internet points are still there

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