The Nineteenth Byte

12:07 AM

@Downgoat use bash

@Downgoat Yes (TIO compiler flags)

This is essentially a bucket sort, right? So it fails if the input doesn't fall in the range of the hash table size? Can that happen? — Jakob 6 mins ago

trichoplax

@totallyhuman Please don't draw attention to old conversations that set a poor example now that we're aiming for low noise.

totallyhuman

@trichoplax oh I'm sorry I didn't realize

I found it funny

trichoplax

It would be considered noise by today's standards

totallyhuman

Can somebody explain that comment to me?

@trichoplax alright I'll avoid that

trichoplax

12:09 AM

Great :)

totallyhuman

I dunno what bucket sort or hash table mean

2EZ 4RTZ

Fun fact! I hate SO with a passion!

totallyhuman

@2EZ4RTZ yay

ASCII-only

@totallyhuman pls do data structures course first.

trichoplax

Bucket sort

Bucket sort, or bin sort, is a sorting algorithm that works by distributing the elements of an array into a number of buckets. Each bucket is then sorted individually, either using a different sorting algorithm, or by recursively applying the bucket sorting algorithm. It is a distribution sort, and is a cousin of radix sort in the most to least significant digit flavour. Bucket sort is a generalization of pigeonhole sort. Bucket sort can be implemented with comparisons and therefore can also be considered a comparison sort algorithm. The computational complexity estimates involve the number of...

totallyhuman

12:10 AM

@ASCII-only no

:P

ASCII-only

@totallyhuman ... then at least use Google...

totallyhuman

TNB is usually much better at explaining stuff like this :P

ASCII-only

@totallyhuman No, Wikipedia is almost always better

totallyhuman

@trichoplax ok I don't see how my answer is using that algorithm

@ASCII-only Wikipedia can get extremely technical

ASCII-only

@totallyhuman Simple English Wikipedia is also a thing

trichoplax

12:12 AM

I haven't seen the answer. If it's not using bucket sort you can just tell the commenter this

totallyhuman

lambda l:{*range(min(l),max(l)+1)}&l

ASCII-only

I guess it doesn't have this article though

totallyhuman

@trichoplax I just wanna confirm what they're asking so I can answer their questions

Wheat Wizard

@totallyhuman Thats not really a bucket sort

trichoplax

@totallyhuman Does that depend on the set being sorted?

totallyhuman

12:15 AM

@trichoplax no

ATaco

CMC: Bucket sort a list of Integers, the sorting method of the buckets can be anything.

ASCII-only

@ATaco RProgN1 quine pls

@ATaco with duplicates?

ATaco

@ASCII-only No, they're not important to the challenge.

@ASCII-only Makin' me do all the work 😆

ASCII-only

@ATaco But it's too different from v2 >_>

trichoplax

@totallyhuman I'm lost. Is that bitwise AND of a set and a list?

totallyhuman

12:18 AM

@trichoplax for sets, and is overridden to set intersection

ATaco

@ASCII-only "%q ] F" ] F

Doesn't look at all different to me :P

ASCII-only

@trichoplax He takes input as a set

trichoplax

@totallyhuman Ah I see. And the list l will be automatically converted to a set for intersection with a set?

ASCII-only

@trichoplax No

trichoplax

Oh input is a set - I should have read the answer rather than just the code here - sorry

ASCII-only

12:19 AM

@ATaco Yep looks totally identical :P

ATaco

Well, that quine works as is in RProgN2.

ASCII-only

@ATaco :/ the spaces are needed whyyy

ATaco

Proof

@ASCII-only Because I am a horrible taco.

totallyhuman

0/10 won't eat again

Wheat Wizard

I got socratic! :)

10

ATaco

12:21 AM

"%q ] format" ] format also works.

trichoplax

> You must explain/list what sort method you used

totallyhuman

... Ok fine it doesn't work apparently, dunno how that works

Wait I got downvoted, c'mon I'm about to fix it

Riker

@WheatWizard nice!

trichoplax

You can always delete while fixing to avoid downvotes

ATaco

IiIgXSBkZWNvZGU2NCAu"" ] decode64 . was the first quine I wrote for it.

totallyhuman

12:24 AM

How do you even do that?

How do you find a string that decodes into itself and the extra code?

ASCII-only

@totallyhuman What????

@ATaco :/

ATaco

@totallyhuman '"" ] decode64 .' encode64

ASCII-only

@totallyhuman ^ It doesn't

Wheat Wizard

@totallyhuman You answer didn't work because sets are not inherently ordered. The order you see when they output is based on a number of complex factors. I could explain if you would like.

ATaco

It's the base64 of the right half, so I duplicate it, decode it, append it.

totallyhuman

12:32 AM

...wow i'm getting a lot of stupidity rewards lol

thanks for explaining guys

ASCII-only

@totallyhuman -1 byte :P

totallyhuman

...that's a different approach

there are much shorter approaches

:P

ASCII-only

Wait Sherlock9 already did that one last year

Riker

@flawr r/DnDGreentext is amazing

particularly by all-time top

totallyhuman

just for fun, CMP: what is your idea for a logo for a golflang called neon

ASCII-only

12:44 AM

@totallyhuman Neon lights spelling out neon

totallyhuman

where's the golf part? :P

2EZ 4RTZ

How can i add text to the end of a ( *char) string?

In C

New Main Posts

1

Q: FORTY TWO? SIX? NINE? Understand these and much more!

Given the written, spelled-out representation of an integer from 1 to 10^15-1 inclusive, convert it to an actual integer in decimal. Input Format The input will always be a string of groups, where each group is composed only of letters and spaces(). The groups are separated by commas. You may...

ASCII-only

Help

Wheat Wizard

@2EZ4RTZ Do you know the length of the char*?

ASCII-only

12:51 AM

@totallyhuman What kind of golfing language has a logo related to golfing

Wheat Wizard

@ASCII-only Adding a space to the front seems to make it a quine.

totallyhuman

@ASCII-only ಠ_ಠ

ASCII-only

@WheatWizard Oh yeah thanks lol

ppperry

@NewMainPosts Well, another duplicate question. Why am I not suprised

2EZ 4RTZ

@WheatWizard 160 bytes

Wheat Wizard

12:55 AM

@2EZ4RTZ Just use the string class instead of a char*

2EZ 4RTZ

Right now the code uses putchar

@WheatWizard All my other code uses char*

Wheat Wizard

Thats probably a bad idea

2EZ 4RTZ

void f(char*s){char c,i=0,j=0;while(c=*(s++)){putchar(c);if(c==' ')++i;if((j<4&&i==7)||(j>=4&&i==6)){i=0;++j;putchar('\n');}}}

is the code I need to save output to a char*

See my problem

@WheatWizard ideas?

Wheat Wizard

My idea is to use a string instead

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Can I Settle Down? In The Settlers of Catan board game, there are five resource types: Brick, Log, Ore, Wheat, and Sheep. Building a settlement costs a Brick, a Log, a Wheat, and a Sheep. However, you can also trade in four identical resources to get a resource of a different type. For instance,...

2EZ 4RTZ

1:02 AM

@WheatWizard You don't understand. I have thousands of lines of code needing it to be a char pointer.

Wheat Wizard

Why?

2EZ 4RTZ

Because they all are char pointers

Wheat Wizard

I don't have any help to offer further than use strings instead.

2EZ 4RTZ

Hmm

@WheatWizard how would I add text to a string? += is not a C thing

Wheat Wizard

a = a + b

tbh I don't know C I'm just pretending its C++ for the most part.

2EZ 4RTZ

1:06 AM

Yeah that doesn't work. THIS IS SO ANNOYING

I HATE C

SO MUCH

totallyhuman

find somebody else who did the same thing in another language :P

ASCII-only

@2EZ4RTZ ...

it's called strcpy

short for string copy...

but really you should probably malloc space for a new string and copy both there

ppperry

or just realloc the old string?

ASCII-only

@2EZ4RTZ ... this is why you don't copy code and have no idea how it works

or that ^^

2EZ 4RTZ

@ASCII-only I know how it works but don't know some of the ins/outs of copying strings

ASCII-only

1:12 AM

@2EZ4RTZ then please google tyvm

totallyhuman

@ASCII-only why are you so against asking for code advice in TNB :P

ASCII-only

@totallyhuman I'm not?

totallyhuman

then why do you keep asking to google

ASCII-only

I'm against "halp gimme teh codez"

it clearly shows no research effort like the majority of SO questions >_>

2EZ 4RTZ

I asked about adding text to a string

I have spent quite a while on this and keep getting errors

Mainly because of bad SO questions :P

Gah

everything results in seg fault

totallyhuman

1:16 AM

it's C what do you expect

ASCII-only

@2EZ4RTZ ... you haven't tried realloc have you

ATaco

MaybeLater now has an Esolangs.org Page

ASCII-only

@ATaco 0/10 has space

2EZ 4RTZ

@ASCII-only I am not concerned about that yet

I really don't care about taking up an extra 200 bytes of memory

ATaco

Space is arbitrary and I don't care about it.

2EZ 4RTZ

1:18 AM

(I understand that is a bad practice but it is just for a challenge)

ASCII-only

@2EZ4RTZ and this is exactly why it's segfaulting

2EZ 4RTZ

@ASCII-only oh

well

ASCII-only

if you don't have the space, you're probably overwriting other important things

New Main Posts

0

Q: Python read numbers until 0 entered then find mean, sum, min and max number

I have an assignment in which I have to do the above with anyone language I would like. (background in java) I am trying to learn python and thought this wouldn't be too hard to implement. I just want pointers on how to structure this as I'm not sure of effective ways of coding in python. My idea...

python

2EZ 4RTZ

I should have the space...

hmmm

ASCII-only

1:19 AM

@2EZ4RTZ no?

Unless you mean the string is allocated with a really long length already

2EZ 4RTZ

@ASCII-only hmmm

@ASCII-only well allocate all memory should fix it :D (joking)

ASCII-only

@2EZ4RTZ >_>

>_> why did you even use c if you don't know how it works

2EZ 4RTZ

Because of have 99.999999% of the program already

ATaco

@NewMainPosts Is just like, 5 challenges mixed together, (And it's forcing you to use Python) :(

totallyhuman

@NewMainPosts somebody pls help them out with comment

2EZ 4RTZ

1:22 AM

@ASCII-only I also have a cold so most logical thinking parts of my brain are just ded (and the rest of my brain too)

ASCII-only

> I have an assignment

<- writing quines with the flu

2EZ 4RTZ

That is just a bad idea

ASCII-only

no it isn't

2EZ 4RTZ

Here is what sucks. I have the ouput that I need but the output is to STDOUT and I can't get the output to STDOUT to be saved to a char *

ASCII-only

@2EZ4RTZ huhwhat

2EZ 4RTZ

1:28 AM

@ASCII-only nvm got help

ASCII-only

@2EZ4RTZ i don't even understand

@2EZ4RTZ if you have the output then why not print it :P

2EZ 4RTZ

@ASCII-only because it is not the output. It is the formatted version of input that I pass to another function

ASCII-only

> I have the ouput that I need

ATaco

@ASCII-only I wrote the Forte quine if you need it :D

ASCII-only

pls give ty

2EZ 4RTZ

1:35 AM

@ASCII-only the function gives the result I want but it goes to STDOUT not a char *

ATaco

@ASCII-only Boop

2EZ 4RTZ

@ATaco I remember that!

ATaco

Yeah! That was a fun one to write!

2EZ 4RTZ

I was trying to do it at the same time

And I was sad and failed :P

ATaco

Plus, I got a bounty for it! :D

I had the advantage, Quines are my Forté

Also, I don't have a quine for MaybeLater yet.

ASCII-only

1:40 AM

:/

2EZ 4RTZ

@ASCII-only I have my program. Everything works but the newlines are supposed to be added but they are never added. Even though the code section that has the newlines being added is run.

toString[num]='\n' is not working but toString[num]=c does

totallyhuman

@ATaco do you have printf or string.format or the like?

2EZ 4RTZ

Any idea why even if both are run it doesn't work?

ATaco

Nope, no way to do the %q trick.

Anonymous

4

Q: redirect output from stdout to a string?

in C i want to redirect the output of a process from stdout to write to a "shared memory segment" which can be thought of as a char array or a string with a pointer i know that there is dup2 but it takes file discriptors as argument not a pointer to an array. is there any way to redirect it to a...

c redirect stdout

totallyhuman

1:42 AM

damn

Anonymous

Please make an attempt to research questions before asking them

ATaco

@ASCII-only TacO Quine

2EZ 4RTZ

@Mego it goes on for pages

Anonymous

But that was the first Google result for "C redirect stdout to string"

ASCII-only

I need help golfing this Boo quine

2EZ 4RTZ

1:44 AM

@Mego I actually looked at it but it wasn't working. I may have typed it wrong but will try once more

totallyhuman

string monads?

2EZ 4RTZ

@Mego yeah I am using char pointers

ASCII-only

@2EZ4RTZ c has no strings btw

2EZ 4RTZ

@ASCII-only yes they are char arrarys

ATaco

C has no arrays.

2EZ 4RTZ

1:51 AM

The two outputs literally get the same input

Right after each other

ATaco

Not really, anyway.

ASCII-only

@2EZ4RTZ pls pastebin

@2EZ4RTZ because they are clearly not getting the same input

2EZ 4RTZ

void f(char*s,char*toString){char c,i=0,j=0;while(c=*(s++)){ int num=0;toString[num]=c; putchar(c);if(c==' ')++i;if((j<4&&i==7)||(j>=4&&i==6)){i=0;++j;toString[num]='\n'qa;putchar('\n');num++;} num++;}}

@ASCII-only there. All one line

the two items are toString and putchar.

ASCII-only

hang on gtg for a while

@2EZ4RTZ qa???

2EZ 4RTZ

@ASCII-only typo but still didn't fix

    char * sting;
sting = malloc(200);
    f(str,sting);
    printf(sting);

That is me running it. I gtg (bed) because school.

Anonymous

2:05 AM

@ATaco char response[] = "That's blatantly false.";

Anonymous

@2EZ4RTZ Then I think the problem is that you have a poor understanding of C.

New Meta Posts

-1

Q: About my chat suspension

Over a month ago, my chat account was suspended for various reasons, most of which being that I was not thinking things through and annoying other chat users. According to the mods, the final touch was when I posted a rickroll link. I've thought things over for a while and I believe that I can r...

support chat suspension

ASCII-only

@2EZ4RTZ can't read pls don't golf

ATaco

2:21 AM

@Mego That array is just a disguised pointer.

ASCII-only

@ATaco Still an array

ATaco

Traditionally, Arrays of size 5 don't let you index 6.

Then again, it's much faster not to think about it.

ASCII-only

@ATaco Well of course but C is meant to be fast not safe

ATaco

Lies made for the convenience of the programmer!

Not that that's a bad thing.

Of course, int foo[5]; is much easier than int* foo = malloc(sizeof(int)*5); (Or int* foo = (int*)malloc(sizeof(int)*5); in C++98)

But on the flipside for(char* str=foo; char c = *str; str++){} feels just a bit nicer to me than for(int i=0; i<(however you get the size of the array idk im new at c); char c = foo[i++]){}

ASCII-only

2:42 AM

CMC: copy quines from here to here if they don't exist yet

ATaco

@ASCII-only That Jelly quine doesn't look expendable.

That is to say, that that quine cannot be modified to do anything else whilst still being a quine.

ASCII-only

:/ no it isn't

crap

and this one is payload capable but errors

ATaco

I think errors are fine, but it's up to you.

Keep in mind I'm incredibly baised because I want to see RProgN2 hold the Quine Crown at all costs.

Anonymous

3:08 AM

@ATaco There's a considerable difference between the two. The first is statically allocated on the stack. Yes, it's possible to use an array variable as a pointer to the first element thanks to pointer decay, but arrays are not "just pointers".

ASCII-only

Yay malbolge quine just made the quine markdown file like 10x bigger

Anonymous

A significant difference comes from the fact that array elements are guaranteed to be contiguous in memory, so pointer arithmetic within the bounds of the array is defined behavior.

ATaco

That's rather interesting and not immediately apparent, i'm still tripping over pointer decay.

Anonymous

@ATaco You haven't seen anything yet

ATaco

3:24 AM

Oh god I forgot indexing is two way

Anonymous

a[b] is equivalent to *(a+b) thanks to pointer decay. Commutativity of addition means that *(b+a) is also equivalent. Since the syntax translation isn't strict, b[a] is also valid.

Anonymous

C++ shut that down :P

ATaco

Hacked it together in Lua :D

Conor O'Brien

I've found basically the best language ever: D, it's like C++ done right

ATaco

Sadly parenthesis are needed, Because Lua assumes that no sane person would ever index a Number.

> /+ +/ comments

> Done right

:P

Conor O'Brien

3:28 AM

wait what is that

I just found this language like an hour ago >.>

oh I see. that's odd. at least /* */ works

Pavel

4:12 AM

@ATaco I think it's fair to say that that's one of the assumptions that Lua actually did get right.

Downgoat

4:27 AM

... why are we still upvoting built-ins

Pavel

Because mathematica

ATaco

Because people still find it quaint when we have one.

Downgoat

5:08 AM

omg there's a non-profit that lets you buy a goat for people in need

ATaco

6:03 AM

I'm hacking together an anyfix variant of RProgN

ATaco

7:13 AM

APN now exists, still very much so WIP.

Wheat Wizard

7:54 AM

@EriktheOutgolfer Your code seems to work for [6,2] as far as I can tell. What was the issue?

Erik the Outgolfer

@WheatWizard I fixed it now

Wheat Wizard

Ok but your old code seemed to work anyway

Erik the Outgolfer

it returned [1, 1, 1, 1, 1, 1, 1, 1] instead of [3, 3, 1, 1]

Wheat Wizard

Oh I see

my version is even older still

you must have introduced the error when you golfed it down

Erik the Outgolfer

I think so

anyways I fixed it and it's still the same size but now it's a full program

Wheat Wizard

7:59 AM

I'm excited for the explanation

Erik the Outgolfer

@WheatWizard ooh

42-byte jelly program doesn't have easy explanation lol but I'll try when I have time

ASCII-only

8:19 AM

@ATaco what even

@ATaco :/ unprintables

RIP SPL will have like a 4MB quine

@EriktheOutgolfer Are you online

Oh @Mayube idea: set up hackmd with no max note length limit on the server :P

Also can someone unfreeze the Charcoal room

Adám

8:36 AM

Would it be interesting to have a challenge to merge a list of (non-conflicting) objects? E.g. [{"Val":1,"demo":{"Greeting":"hello","target":"World"}},{"answer":42,"demo":{"t‌ime":"now"}}] gives {"Val":1,"answer":42,"demo":{"Greeting":"hello","target":"World","time":"now"}}‌

Erik the Outgolfer

8:55 AM

@ASCII-only I am now

@Adám and what about conflicting objects?

e.g. [{1:{2:3}},{1:{2:4}}]

we may assume there aren't any?

Adám

@EriktheOutgolfer non-conflicting

Erik the Outgolfer

that's why I asked

Adám

@EriktheOutgolfer Uh, I wrote "non-conflicting", didn't I?

Erik the Outgolfer

well, on its own it's a little bit unclear if the input will ever conflict though

and if it will, how to handle it

Adám

@EriktheOutgolfer Is merge a list of (non-conflicting) objects unclear‽

Erik the Outgolfer

9:02 AM

nvm

ASCII-only

9:22 AM

@EriktheOutgolfer ok so I still have no idea what sum should do for strings (and product too)

Erik the Outgolfer

sum and product their codepoints?

ASCII-only

:/ would that ever be useful

Anonymous

@ASCII-only I still say nothing

Erik the Outgolfer

@ASCII-only or sum its digits?

ASCII-only

@EriktheOutgolfer Oh yeah good idea autocast

Erik the Outgolfer

9:25 AM

e.g. 991==x*(){}//500192is2o4 = 9 + 9 + 1 + 5 + 0 + 0 + 1 + 9 + 2 + 2 + 4 = 42

ASCII-only

what just happened

Erik the Outgolfer

what?

ASCII-only

991==x*(){}//500192is2o4 = 9 + 9 + 1 + 5 + 0 + 0 + 1 + 9 + 2 + 2 + 4 = 42

Erik the Outgolfer

yeah that's what I typed

ASCII-only

i have no idea what it's supposed to mean >_>

Oh wait hang on

Erik the Outgolfer

9:27 AM

take its digits and sum them

ooh better idea

ASCII-only

:/ would that ever be useful

Erik the Outgolfer

sum its numbers

ASCII-only

@EriktheOutgolfer Hmm, I'd say sum digits if the string is only digits

Anonymous

@ASCII-only "good idea" and "autocast" don't go together

5

Erik the Outgolfer

e.g. 10=20//44:5'555\-33 = 10 + 20 + 44 + 5 + 555 - 33 = 601

Anonymous

9:29 AM

Do you want PHP? Because that's how you get PHP.

Erik the Outgolfer

true

ASCII-only

@Mego but... golfing languages have to make some pretty big sacrifices

Also what should increment/decrement/halve/double do for strings

Erik the Outgolfer

maybe overload a bit?

ASCII-only

?

Erik the Outgolfer

like, something doing different stuff for numbers and strings for example

ASCII-only

9:35 AM

@EriktheOutgolfer I know that, of course they should but I'm asking what the overloads should do

Erik the Outgolfer

well, for example Subtract/Minus can be "negative filter" for str and lst

e.g. ⁻abcdefg¦eggs mc laren -> bdf

Emigna

@ASCII-only Halve = cut in 2 equal sized pieces. Double = duplicate/bifurcate/palendromize. All commands could also work on codepoints for strings, but that might be a bit too situational

Increment could be useful on codepoints, but probably never halve/double

Erik the Outgolfer

@Emigna "bifurcate" and "duplicate" can't be things in charcoal

it's not stack-based

Emigna

Ah yeah, true

Erik the Outgolfer

also if there had to be a duplicate command why restrict it to strings?

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