The Nineteenth Byte - 2016-09-15 (page 6 of 6)

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9:00 PM

Does anyone here know much about boost::python?

El'endia Starman

@orlp Woah what really? Only 15 colors? Nawww...

Color golfing turns out some really nice stuff.

@El'endiaStarman that's what imagemagick told me

it's a bit weird it's 15 and not 16 though...

El'endia Starman

That's incredible.

This just happened:
(Future) Mother in law: C6H12O6 what is it?
Me: Sugar, glucose.
Her: Just checking.
.....
Me: That was really random, y'know.
Her: I was just making sure you knew your biology and chemistry.

She's actually interpreting (ASL) for a biology class as part of her job, so...

Haha, someone really cares about their chemistry

@El'endiaStarman How far in the future?

El'endia Starman

9:09 PM

@DJMcMayhem Don't know yet. Both my fiancée and I have to/want to get jobs (check!) and build up a budget before we start planning for the wedding.

@El'endiaStarman C6H12O6 is ambiguous

there is more than one structure for the molecule

one of them is glucose

El'endia Starman

The other is cellulose, right?

I'm not certain if other arrangements are stable, but they are imaginable

1

A: StringgnirtSStringgnirtSStringgnirtS

Vim + coreutils, 32 keystrokes You can never have too many Vim answers. qqYv:!rev Pjq@=len(@") @q2dkv{gJ Explanation qq " Start recording macro Y " Yank (copy) line v:!rev<CR> " Reverse line with coreutils rev command Pj " Paste yanked line th...

@El'endiaStarman you have two fiance'es?

9:12 PM

Outgolfed on my own challenge in my favorite golfing language...

CH3CH(CH3)CHO, anyone?

> You can never have too many Vim answers.

The molecular formula C6H12O6 (molar mass: 180.16 g/mol, exact mass: 180.063388) may refer to: Aldohexose: Allose Altrose Galactose Glucose Gulose Idose Mannose Talose Ketohexose: Fructose Psicose Sorbose Tagatose Inositols == References... ==

[citation-needed]

@El'endiaStarman I don't know

9:12 PM

Ugh

all I know is that there are multiple possible arrangements

El'endia Starman

@ConorO'Brien No, why would you think that? o.O

>_>

oh

I am an idiot

@quartata sweet!

I ready as "both my fiance" >_<

9:13 PM

@mbomb007 hehe

molecular formulas are rarely unambiguous

That's one of the few molecules I have memorized

El'endia Starman

Well, sugar/glucose was the first one that came to mind, and I presume it's the most common variant of C6H12O6 too.

(even if we follow the rule of valence electrons, which can be violated with unstable compounds)

@ConorO'Brien that's 'cuz Starman here used mod-ninja editing skillz to edit it to be correct after you read it :P

9:14 PM

@El'endiaStarman well, you have failed my test :P

ah

be glad I'm not your future mother in law

@ConorO'Brien Don't mod the ticks.

El'endia Starman

@orlp Oh, I am. ;)

@mbomb007 yeah, those are calibrated

El'endia Starman

9:15 PM

@mbomb007 Yeah, they're bad enough already, what with lyme disease and all...

They'll remove your blood.

These both sound like good reasons to mod the ticks.

i hate ticks

ok bye

@El'endiaStarman if anyone wishes to marry my children

they must pass the test

and prove themselves as great code golfers

my grand children shall not be dirty byte wasters!

TùxCräftîñg

2

Q: palindrome detection palindrome

Write a function with a single string parameter and a boolean return value. The function should return true iff the string is a palindrome character-wise. Alternatively, write a program that reads a string from standard input and writes 1/0 to standard output depending on whether the string is p...

popularity-contest string

haha it's a duplicate of an off-topic question

9:20 PM

s/a off/an off/

Mini-challenge: decode this Internet Oracle oracularity. XD

TùxCräftîñg

} The Oracle, having seen this kind of question before, says it stinks.
}
} You owe the Oracle a Clown Format to replace the MIME format I often
} see.

btw XD

Is there a reason why 50% of all youtubers use yellow in their thumbnails?

citation-needed

TùxCräftîñg

not-in-france

El'endia Starman

9:24 PM

@flawr I dunno, since of all the ones I'm subscribed to, something like two or three have yellow in their channel avatar.

And I'm subscribed to a couple dozen YouTubers.

@flawr If count only PPCG YouTube channel keepers, citation-needed

678?

I have like 20

TùxCräftîñg

The Block

Hangin' with Marky. Please be nice to him, his kill queue is a...

o_o zalgo is no longer 10 messages behind

@DJMcMayhem what ?

TùxCräftîñg

in The Block, 16 secs ago, by Zalgo

@TùxCräftîñg if the snowfall was falling at say, 10 ft/hour at t=0 and 7 ft/hour at t=1, etc.

huh

9:35 PM

oh, that was from me and tricho's conversation about calculus

TùxCräftîñg

ah

0

Q: Tennis Tournament Multimatch elimination

I was asked this question in one of the interviews. A tennis tournament starts with 117 players and each players gets eliminated after losing 3 matches. What is the minimum number of matches played when 4 players are left. I was unable to provide solution to this. It could be helpful if someone ...

programming-puzzle

user image

citation-provided

El'endia Starman

.......very nice. :P

TùxCräftîñg

plz lowres i cant see it

El'endia Starman

9:41 PM

(For those who can't/don't see it, the left engine (from our perspective) has "Citation" on the side.)

xD

TùxCräftîñg

github.com/tuxcrafting/dialpha

@El'endiaStarman Didn't even see that, nice=)

    let i = 0;
    for (let c of bytecode) {
        this.bytecode[i++] = c.charCodeAt(0);
    }

TùxCräftîñg

and?

9:45 PM

just do for(let i = 0; i < bytecode.length; i++){...} maybe?

@TùxCräftîñg I'd try writing the CRC check sum for a string to the output buffer, but

TùxCräftîñg

@ConorO'Brien Y U i++ ಠ_ಠ

++i is better in for loops

there's... literally no difference

and you use i++ as well >_<

TùxCräftîñg

i++ create a copy of the variable, ++i directly increment it

@TùxCräftîñg It's optimized out in literally everything now

9:46 PM

user image

another-citation

@TùxCräftîñg uhh I've never heard of this.

TùxCräftîñg

++i increment i and return it, i++ return i and increment it

That's because it isn't true any more.

It was in C

@TùxCräftîñg there is no new variable tho.

How are the chars outside ASCII printables (20..7E) output?

9:48 PM

460

Q: What is the difference between ++i and i++

In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop?

c for-loop post-increment pre-increment

> In C

we're talking about JS :P

It also applies to other languages, doesn't it?

idk, but this kind of clinches it :P

TùxCräftîñg

with i++, GCC do weird things with the stack, but with ++i the variable is directly incremented

Even in C it should be optimized out unless you're purposely compiling unoptimized IIRC.

9:50 PM

How is ++i++ ?

TùxCräftîñg

@flawr syntax error

i++i

@flawr That works in MATL :-P

TùxCräftîñg

syntax error

@LuisMendo :)

@TùxCräftîñg i+++i

TùxCräftîñg

9:51 PM

if you want an undefined behavior, ^

@flawr = (i++) + i I think

TùxCräftîñg

with some compilers, it might be i + (++i)

@LuisMendo I wrote a MATL answer today!=)

@ConorO'Brien repl.it/Dakt/1

@flawr Saw (and upvoted)! :-)

9:52 PM

@TùxCräftîñg I kinda doubt that, since I'd think that lexers would use a greedy algorithm

@LuisMendo One of the few things I can actually do in Matl=)

@Adnan great? Ik what it does :p

@flawr Haha. You know a lot of Matlab. It would be quite easy for you

@LuisMendo if I'd put some effort in=)

@flawr You changed your avatar! Or its perspective anyway

9:54 PM

oh, that's tru

Now it's even more fearsome

@LuisMendo but, you have to admit, the bowtie is classy AF

@TùxCräftîñg also, you might want to use [a, b] = this.stack.splice(-2)--it's cleaner

@flawr Oh. Sheer fear prevented me from noticing that

TùxCräftîñg

oh thx

9:56 PM

^^

xD

@LuisMendo Out of curiosity, how long did it take you to make that wonderful documentation for MATL?

@ConorO'Brien Oh. I don't know exactly. (And thanks!) I did it at the same time as the language. About three months for both, not full-time of course. And naturally it's been gradually evolving since

that's pretty cool. Smart idea doing docs with the language :P

Hi

hiya

TùxCräftîñg

iH

10:02 PM

@ConorO'Brien I tend to be verbose like Java when writing about how things work :-P There are good and bad sides to that

TùxCräftîñg

pushed dialpha

it's good to be verbose for docs

@ConorO'Brien I think that way too. But then, the result is a large document that can detract some...

Is it just me or is Ubuntu's US mirror getting pounded?

I'm getting 200KB/S from them, should be far more

@LuisMendo this is true as well

10:14 PM

Does anyone here have experience with MIDI?

@quartata a bit

So I'm using a library to parse a MIDI file into the messages

And I don't see where the duration is stored

I see the note_on and note_off messages

@quartata there is no duration

But how does something reading the file know how much time is between the messages?

@orlp How does it work then?

each midi event should have a passed amount of ticks, no?

10:15 PM

Oh, msg.time. Woops.

Yeah, that was it.

OK, that makes sense now... :P

github.com/orlp/augmented-composition/blob/master/midi.py

a tiny midi generator I've written

Interesting thanks

onestop.midi

@quartata do you know how to get the imaginary and real parts of a number in J?

with magic

Night. C u tomorrow.

TùxCräftîñg

10:27 PM

the bytecode of

push8 0
"Hello, World!"
:loop
dup
jiz end
putc
jmp loop
:end
flush
halt

cant be base64ed ಠ_ಠ

@TùxCräftîñg wat why

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

A slice of Pi code-golf kolmongorov-complexity ascii-art pi Write a program or function that prints or outputs this exact text: ()()()()()() |\3.1415926| |:\53589793| \::\2384626| \::\433832| \::\79502| \::\8841| \::\971| \::\69| \::\3| \__\| Your program must tak...

TùxCräftîñg

wait i am stupid

it's not jmp it's jump

the base64 is 2voBAAEhAWQBbAFyAW8BVwEgASwBbwFsAWwBZQFIBQ8qAAAAHgseAAAAHwA=

Jul 24 at 20:10, by TùxCräftîñg

1

A: Can Mario go to the end of this map

C, 241 bytes Try it on ideone, with test cases... Which throws a runtime error:( On my phone it looks like this: i,j,k,x,y;f(v,l,h)char**v;{for(i=0;i<h;i++)for(j=0;j<l;)if(v[i][j++]=='S')x=i,y=j-1;for(;y<l,x<h;){a:if(v[x+1][y]!='=')x++;else{if(v[x][y]=='E')return 0;if(v[x][y+1]=='=')for(k=0;k<...

user image

10:32 PM

^^Ohmigod you said that @TùxCräftîñg

TùxCräftîñg

i said what?

Wait, you are coding on mobile ಠ_ಠ — TùxCräftîñg Jul 24 at 20:10

> this guy program with cppdroid ಠ_ಠ

TùxCräftîñg

the only comment where is used ಠ_ಠ

ΛεγίωνΜάμμαλϠΟΗʹ

$ unzip -p "CSharp Language Specification.docx" docProps/core.xml|xml-fmt
<cp:coreProperties xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<dc:title>
	C# Language Specification
	</dc:title>
	<dc:creator>
	</dc:creator>
	<cp:lastModifiedBy>
	</cp:lastModifiedBy>
	<cp:revision>

@TùxCräftîñg what language is that?

TùxCräftîñg

10:34 PM

Dialpha assembly

@TùxCräftîñg it's from chat

TùxCräftîñg

github.com/tuxcrafting/dialpha

ΛεγίωνΜάμμαλϠΟΗʹ

Weird, some Microsoft employee must've last printed the specification sometime in October 2000

MS Word document format conversion must be pretty thorough

TùxCräftîñg

0

A: "Hello, World!"

Dialpha bytecode, 44 bytes Bytecode in Base64: 2voBAAEhAWQBbAFyAW8BVwEgASwBbwFsAWwBZQFIBQ8qAAAAHgseAAAAHwA= Assembly code: push8 0 "Hello, World!" :loop dup jiz end putc jump loop :end flush halt

El'endia Starman

10:49 PM

@TùxCräftîñg I think you dropped a there.

TùxCräftîñg

nope, i meant the only comment where i used ಠ_ಠ

CMC (to make into real challenge): Given a list of positive decimal integers, output the largest one with the fewest digits. e.g. [23, 56, 100, 340] -> 56

Also, is that a dupe?

I'm unsure how I feel about "dialpha bytecode" scoring. IIRC, there was a highly voted thing somewhere that said we should be counting the language it's programmed in (as in what you type), not the output of some script/assembler ran afterward.

TùxCräftîñg

most x86 submissions count the machine code

That doesn't mean I agree with it. I've downvoted them before.

10:55 PM

@HelkaHomba why not sum the digits, too? :)

[23, 56, 100, 340] -> 11

:/ there's no need to tack "sum the digits" at the end of the challenge...

CMC: pick a random challenge and tack "sum the digits" to the end.

@Sp3000 I know, I wasn't being serious :P

If we were going to sum the digits, I'd be suggesting you factorialize the number and then find the result's prime factors while you were at it.

Sorry, sarcasm doesn't transmit well over the intertubes, must have been sarcasm static

mod 10000007

11:04 PM

@HelkaHomba CJam: {${s,~}$W=}, -1 byte if input array is pre-sorted. No idea about dupe

CMC for S.I.L.O.S plz

TùxCräftîñg

Write a optimizing Objective-C compiler fastest-code

-1 too language specific for no good reason ;)

TùxCräftîñg

'night

night

11:20 PM

night

Cya

can confirm: is night

I'm showing a contradiction.

11:40 PM

¯\_(ツ)_/¯

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@PhiNotPi can confirm: is day outside for me why is your sky buggy

@Doorknob, @quartata, (hopefully @DJMcMayhem)

user image

11:55 PM

@EᴀsᴛᴇʀʟʏIʀᴋ Found relevant note in issue tracker:

WONTFIX: For load balancing purposes, rendering had to be split into chunks. Different chunks will render day/night cycle at different times. Separated users into chunk by region to reduce latency.

Eᴀsᴛᴇʀʟʏ Iʀᴋ

hm, did you try turning it off and on again?

Tried that once, a few billion years back. It wasn't pretty.

Eᴀsᴛᴇʀʟʏ Iʀᴋ

yeah, users don't seem to like forced reboots or 500 errors

bug report: everyone in the media has forgotten about the daylight cycle. Please investigate.

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Sep '1615

The Nineteenth Byte

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