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El'endia Starman
El'endia Starman
12:00 AM
@DrGreenEggsandIronMan I once did on Christianity.SE.
 
Nathan Merrill
Nathan Merrill
if I were doing the challenge, I'd totally include a test case with 1000s of lines, and put a time limit
 
El'endia Starman
El'endia Starman
in The Upper Room, Feb 3 '15 at 3:07, by El'endia Starman
WHOOHOO 500 consecutive days on the main site! :D
That streak was broken 11 days later.
 
Downgoat
Downgoat
@El'endiaStarman :(
 
Mᴀʀs Uʟᴛᴏʀ
Mᴀʀs Uʟᴛᴏʀ
then it's something like triangular number squared - columns * dupe rows - rows * dupe columns + dupe rows * dupe columns?
 
El'endia Starman
El'endia Starman
 
Mᴀʀs Uʟᴛᴏʀ
Mᴀʀs Uʟᴛᴏʀ
12:02 AM
@NathanMerrill is there even any fast way to find duplicates
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@El'endiaStarman nice. I'm at 208 rn, which is my record.
Also, awesome chatroom name. :)
 
El'endia Starman
El'endia Starman
Thanks. :D
 
Nathan Merrill
Nathan Merrill
actually, finding duplicates isn't the solution
 
Mᴀʀs Uʟᴛᴏʀ
Mᴀʀs Uʟᴛᴏʀ
how can you do the challenge without enumerating anything
 
Nathan Merrill
Nathan Merrill
I think you calculate the number of unique distances for each of the axises
 
Mᴀʀs Uʟᴛᴏʀ
Mᴀʀs Uʟᴛᴏʀ
12:05 AM
yeah, that's not fast enough either
 
Nathan Merrill
Nathan Merrill
hmmm, nevermind
 
Helka Homba
Helka Homba
axes
 
LegionMammal978
LegionMammal978
It would be higher if I didn't go camping so often
 
Nathan Merrill
Nathan Merrill
I don't want to be talking about lumberjacks
2
 
Helka Homba
Helka Homba
 
Nathan Merrill
Nathan Merrill
12:08 AM
I refuse your prescriptivism
 
Helka Homba
Helka Homba
@NathanMerrill 🍪
 
Nathan Merrill
Nathan Merrill
er, I can't tell what that is
my ppi is too high
 
Helka Homba
Helka Homba
You may want to get yourself checked...
 
El'endia Starman
El'endia Starman
@NathanMerrill It's a cookie. For using a rare word, I think.
 
Helka Homba
Helka Homba
ding ding ding
 
Nathan Merrill
Nathan Merrill
12:12 AM
lol
I just saw a bunch of dots, and didn't realize they were chips
anyways, I can't find any literature on counting the number of unique differences between integers
in other news, I realized that we haven't had a good stock KoTH game
(the previous two have both been closed)
 
quartata
quartata
12:27 AM
@DrGreenEggsandIronMan I'm at 318 currently
 
Alex A.
Alex A.
@DrGreenEggsandIronMan I had 540 or so but I missed a day the other day because I was too busy and it reset ;-;
 
El'endia Starman
El'endia Starman
@NathanMerrill Stock? As in finances?
 
Doorknob
Doorknob
I still have 352 somehow even though I thought I missed several days
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@AlexA. aww. Sad day.
 
Nathan Merrill
Nathan Merrill
@El'endiaStarman yeah.
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
12:34 AM
I'm really worried I might miss one or two since I'm going out of town soon.
 
Nathan Merrill
Nathan Merrill
its turning out similar to one of my previous challenges
but its simpler, and hopefully, will get more participation
(I really liked it, but it only got a couple of submissions
18
Q: Traders to the Death

Nathan MerrillYou are a foreign trader, hoping to make a profit. There are 5 goods people wish to trade: Apricots, Boars, Canaries, Daffodils, and Earwigs. Starting in the winter, you need to decide what to produce. Then, in the fall, you travel and spend your days trading for a profit. Gameplay You start...

king-of-the-hill
that one ^
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
@El'endiaStarman I just completed PE 59. It was a pleasant surprise :)
 
El'endia Starman
El'endia Starman
@CᴏɴᴏʀO'Bʀɪᴇɴ Nice. :D
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
> Your email adress. It is required for account-verification. Email addresses do not start with a www. or a http://. That is only websites. Your email will not work if you include either mistakingly!
._. this must be a large problem to point it out
 
Downgoat
Downgoat
@DrGreenEggsandIronMan just levae your compiuter on and write script to refresh page every 5 seconds :P
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
12:44 AM
a la kitchen timer
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@Downgoat Ooh. That's a ridiculous idea, but I might actually try something like that
I'm also trying to get fanatic on ppcg.meta and Vi.se
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
@Sherlock9 I gave up on my former approach--am now using comic fury for comic hosting. Expect some soon! cergos. (@flawr, I think you were also interested.)
 
R. Kap
R. Kap
Now what do you guys think of my proposed challenge?
0
A: Sandbox for Proposed Challenges

R. KapHow Many Rectangles in the Grid? code-golf Consider this 3 x 3 grid of rectangles: How many unique rectangles are here? Well, counting visually, we can see that there are 36 unique rectangles, including the entire plane itself, which are all represented with arrows in the image below: wher...

 
Nathan Merrill
Nathan Merrill
@R.Kap better. Because you are simply indicating the number of columns/rows, you don't need to include the word "unique" (and it is confusing that way)
 
R. Kap
R. Kap
@NathanMerrill All right. I got rid of "unique".
 
Nathan Merrill
Nathan Merrill
12:56 AM
@R.Kap also, add oeis.org/A096948
 
R. Kap
R. Kap
@NathanMerrill Added.
 
Nathan Merrill
Nathan Merrill
looks good to me
 
R. Kap
R. Kap
@NathanMerrill Yay! \o/
@NathanMerrill Also, if you have the time, could you see if there are any questions currently on PPCG that my proposed challenge could be marked as a duplicate of if it was posted on the main site? I would really appreciate it.
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
1:14 AM
Does this seem like a terrible font for the text of comics in a webcomic?
 
Helka Homba
Helka Homba
sorta
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
yeah
I just realized that :/
maybe I should just use Open Sans
should I just write out the letters by hand (mouse) or type it?
 
quartata
quartata
What are you doing this in?
Are you inking by hand?
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
sumopaint, or any free software
@quartata online
 
quartata
quartata
You could do the speech balloons and lettering separately on paper and scan it. Hand lettering is pretty much impossible by mouse and nearly impossible with a tablet
 
Cᴏɴᴏʀ O'Bʀɪᴇɴ
Cᴏɴᴏʀ O'Bʀɪᴇɴ
1:29 AM
that's messy :/
 
quartata
quartata
Not really?
 
Nathan Merrill
Nathan Merrill
Hey, terminology. If I am offering to exchange A for B, then "A for B" is the offer. "B" is the desired payment, but A is the ____ payment?
 
El'endia Starman
El'endia Starman
@NathanMerrill Like, I'll give you apples if you give me bananas?
 
quartata
quartata
1:45 AM
@AlexA. pl took me longer to make than it took Mozilla to make JS
That's mostly because I'm incompetent
I swear, someone at Valve must have an enum fetish
 
Alex A.
Alex A.
@quartata ?
 
Leaky Nun
Leaky Nun
2:00 AM
 
quartata
quartata
@AlexA. You haven't experienced life yet until you've found yourself calling a method that takes four non optional enum values whose behaviors overlap
 
Leaky Nun
Leaky Nun
The name of the function Y< is interesting
 
Alex A.
Alex A.
@quartata Hah what ok
 
Nathan Merrill
Nathan Merrill
@El'endiaStarman yes. What's the term for apples?
 
Alex A.
Alex A.
...Apples?
 
xnor
xnor
2:04 AM
@R.Kap i think the rectangles and the diagram with the arrows are confusing; it would be much clearer with a grid of squares
 
Eᴀsᴛᴇʀʟʏ Iʀᴋ
Eᴀsᴛᴇʀʟʏ Iʀᴋ
lel
 
xnor
xnor
@R.Kap actually, i don't understand the problem. why does [2,2] give 36?
 
Leaky Nun
Leaky Nun
@xnor I believe he meant [3,3]
Any way, the formula is just [m,n] -> m(m+1)n(n+1)/4 (Yes I'm fun at parties)
 
xnor
xnor
@LeakyNun i thought the same but then [6,7] -> 550 is a mistake?
 
Leaky Nun
Leaky Nun
@xnor he may as well have miscounted [6,7] seeing that he doesn't even know that this challenge is that trivial
he may have counted it by hand
 
xnor
xnor
2:11 AM
i see
yes, that's definitely trivial
though i think the python shortcut n*~n*m*~m/4 is cute
 
Leaky Nun
Leaky Nun
@xnor wow, nice
 
Helka Homba
Helka Homba
@AlexA. Where have you been :O
 
Alex A.
Alex A.
Guatemala
 
Helka Homba
Helka Homba
It may please you to know that Bernie has no pants on fire
 
Alex A.
Alex A.
Plot twist: I knew that all along ;)
 
Daniel M.
Daniel M.
2:22 AM
Challenge incoming...
 
El'endia Starman
El'endia Starman
@LeakyNun A couple of us figured it out in chat. He may have missed that conversation.
 
Leaky Nun
Leaky Nun
@El'endiaStarman alright
 
New Main Posts
New Main Posts
1
Q: I misspelled my domayn name

Daniel M.According to Alexa rankings, the top 10 websites are: google.com youtube.com facebook.com baidu.com yahoo.com wikipedia.org amazon.com twitter.com qq.com google.co.in Being the top 10 visited websites, these are probably also the top 10 misspelled websites [Citation Needed]. Your task Your g...

code-golf string
 
Helka Homba
Helka Homba
@NewMainPosts No, you're just George R. R. Martin
 
Anonymous
I got married yesterday. 10/10 would recommend, 0/10 would not do again.
17
 
Helka Homba
Helka Homba
2:29 AM
@Mego Congrats!
 
Anonymous
Thanks :D
 
Anonymous
@Dennis TIO suggestion: allowing users to pick a specific version of the language, for languages with reasonable versioning schemes
 
Helka Homba
Helka Homba
You'll need to add a wedding band to your fin in your avatar
6
 
El'endia Starman
El'endia Starman
@Mego Congratulations! :D
And agreed. ^^
 
Anonymous
I'll attempt it
 
El'endia Starman
El'endia Starman
2:32 AM
So that's two people who have gotten married in the time since I joined PPCG.
 
Daniel M.
Daniel M.
Congrats!
 
Nathan Merrill
Nathan Merrill
@El'endiaStarman am I the second?
 
Anonymous
@NathanMerrill Me and Martin. You got married?
 
Nathan Merrill
Nathan Merrill
oh, yeah, Martin
yeah. It's been a while (last June), so I didn't think it was me, but I couldn't think of anybody else
 
Dennis
Dennis
There was somebody else. Lemme search.
Sorry, was afk getting married. — histocrat Sep 7 '15 at 14:03
 
quartata
quartata
2:40 AM
primo too I thought
 
miles
miles
@Mego congrats
 
Dennis
Dennis
@Mego That's harder than it sounds. Curating the list of versions manually for each language is impractical, and I can't think of a better way.
Also, congrats!
 
Anonymous
@Dennis For languages that use package managers, it'd be pretty simple. For others, version control commits could be used.
 
Dennis
Dennis
Getting married was the most rushed and best decision I ever made.
 
Nathan Merrill
Nathan Merrill
so, before each TIO request, the server would do a git checkout?
 
El'endia Starman
El'endia Starman
2:43 AM
@NathanMerrill Looks like my first chat message was in September last year, so yeah, you got married before I really joined.
September 16, to be precise, which means its after histocrat's too.
 
Nathan Merrill
Nathan Merrill
ah. I checked your PPCG join date
 
Anonymous
@NathanMerrill Yeah that could be an issue on the server
 
quartata
quartata
I presume it would cache versions...
 
Anonymous
@quartata RIP the server's storage capacity
 
Anonymous
Also thanks for all the congratulations from everyone :)
 
Nathan Merrill
Nathan Merrill
2:45 AM
oh, you could do primitive versioning if the git commit message starts with a version number
but that feels hackish
 
quartata
quartata
or GH releases
 
El'endia Starman
El'endia Starman
@NathanMerrill Yeah, I "joined" to upvote questions and answers. My first post on PPCG was technically August 3, 2015, but I didn't really start participating until September 16 (first question) and 18 (second answer).
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
Congrats @Mego!
 
Leaky Nun
Leaky Nun
New challenge in 10 minutes \o/
 
quartata
quartata
^^
 
Nathan Merrill
Nathan Merrill
2:49 AM
oh, does ^^ mean to skip two messages up?
hmmm, this has a hinting of a new language
 
El'endia Starman
El'endia Starman
@NathanMerrill I may have started that.
 
Nathan Merrill
Nathan Merrill
@El'endiaStarman did you ever come up with a term? If I'm offering 5 apples for 4 oranges, then "5 apples" is my ____?
 
El'endia Starman
El'endia Starman
@NathanMerrill product or offer?
Commodity, maybe?
 
Nathan Merrill
Nathan Merrill
offer doesn't work, because its the term I'm using for the entire transaction
 
Leaky Nun
Leaky Nun
0
Q: Determine the position of a non-negative number in the infinite spiral

Leaky NunDefinition The infinite spiral used in this question has 0 on the position (0,0), and continues like this: 16-15-14-13-12 | | 17 4--3--2 11 | | | | 18 5 0--1 10 | | | 19 6--7--8--9 | 20--21... It is to be interpreted as a Cartesian plane. For example, 1 is on ...

code-golf number
 
Nathan Merrill
Nathan Merrill
2:54 AM
and the other two terms don't indicate that its the product I'm giving
(as opposed to taking (or desiring)
 
quartata
quartata
Item given and item received?
 
Nathan Merrill
Nathan Merrill
getItemGiven()?
 
El'endia Starman
El'endia Starman
[opens up thesaurus.com]
 
Nathan Merrill
Nathan Merrill
I've been looking for synonyms for offer to no avail :/
 
El'endia Starman
El'endia Starman
Is this specifically for a barter system?
 
Nathan Merrill
Nathan Merrill
2:56 AM
yes
 
El'endia Starman
El'endia Starman
What about goods?
 
quartata
quartata
Product and payment?
 
Nathan Merrill
Nathan Merrill
hmmm, I like payment
 
Helka Homba
Helka Homba
tit and tat
 
Nathan Merrill
Nathan Merrill
lol
maybe "Transaction", "Offer", and "Payment"
 
New Main Posts
New Main Posts
2:58 AM
0
Q: Determine the position of a non-negative number in the infinite spiral

Leaky NunDefinition The infinite spiral used in this question has 0 on the position (0,0), and continues like this: 16-15-14-13-12 | | 17 4--3--2 11 | | | | 18 5 0--1 10 | | | 19 6--7--8--9 | 20--21... It is to be interpreted as a Cartesian plane. For example, 1 is on ...

code-golf number
 
Alex A.
Alex A.
@Mego Hey, congratulations!
 
El'endia Starman
El'endia Starman
@NathanMerrill Yeah, that'd work.
 
Anonymous
@HelkaHomba Done(ish)
 
El'endia Starman
El'endia Starman
@Mego I see it. Very nice.
 
R. Kap
R. Kap
@xnor Because a 2 by 2 grid of rectangles results in a total of 36 different rectangles if you look really carefully.
@xnor Well, I tried doing that, but it is even more confusing as creating those squares would resulting in many overlapping ones, hiding ones that are supposed to obviously be there.
@xnor Oh, sorry. That was a typo. Disregard my previous reply.
 
Helka Homba
Helka Homba
3:11 AM
Anybody want to play Minecraft minigames?
 
Quill
Quill
Congrats @Mego
I see alex is here too :)
 
Helka Homba
Helka Homba
@DrGreenEggsandIronMan ^^^^^^^
 
Quill
Quill
(removed)
 
Alex A.
Alex A.
@Quill o/
 
orlp
orlp
 
Doorknob
Doorknob
3:33 AM
@Mego Congratulations! :)
 
orlp
orlp
@Mego My condolences.
 
uoɥʇʎPʎzɐɹC
uoɥʇʎPʎzɐɹC
Hey, can anybody crack this code?
!@#^@#((^@@$^@#
cryptic hint: leopard, bases
 
El'endia Starman
El'endia Starman
I'm having so much fun with my TNB data explorer right now. :P
Also, I've accidentally started teaching myself more SQL. :P
 
Leaky Nun
Leaky Nun
@uoɥʇʎPʎzɐɹC potato
walks out like a boss
 
quartata
quartata
3:49 AM
@uoɥʇʎPʎzɐɹC Clearly HH related
 
Doorknob
Doorknob
Some people sang this thing for the talent show at the math camp I'm at. It was glorious.
 
quartata
quartata
unused lavatory is the same length so I'm guessing that
You took the codes mod 6 or something I presume
Akthough you must have permuted it since unu couldn't map to !@#
 
orlp
orlp
is there a better way to get the real/imaginary parts of a complex in Python than (c.real,c.imag)?
 
El'endia Starman
El'endia Starman
@orlp I just tried using modulo, and it errors, so I don't think so.
 
Leaky Nun
Leaky Nun
@orlp define better
 
orlp
orlp
3:57 AM
@LeakyNun shorter
@LeakyNun see also my comment on your challenge :)
 
Leaky Nun
Leaky Nun
@orlp replied
 
orlp
orlp
@LeakyNun what about (5.0, -3.0)?
. is not a digit
 
Leaky Nun
Leaky Nun
@orlp does it match the regex?
 
orlp
orlp
no, because it sees that as 4 numbers
unless \d contains .
which I don't know
 
Leaky Nun
Leaky Nun
@orlp then that's a no
 
orlp
orlp
4:00 AM
well
it entirely depends on \d
 
Leaky Nun
Leaky Nun
@orlp AFAIK no implementations of \d contain the dot
 
orlp
orlp
"The format of the position consists of two numbers separated by any non-empty string that contains no digits."
I'd argue that 5.0, -3.0 is two numbers separate by a non-empty string that contains no digits
your regex just has a flawed concept of what a number is :)
 
Leaky Nun
Leaky Nun
@orlp you win
 
Dennis
Dennis
I have a 17 byte version that returns complex numbers, but 0, 1, -1, 1j, -1j, etc. are not displayed properly. ._.
 
Anonymous
@orlp That's the shortest way AFAIK
 
orlp
orlp
4:06 AM
so what's a good check to see if a number is of the form floor(n*n/4)
 
Anonymous
x in[int(n*n/4)for n in range(x)]
 
orlp
orlp
eww
 
Anonymous
Actually I'm not even sure if that works
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
Help me please
My (good) post got closed
I can link it
 
Leaky Nun
Leaky Nun
@Mego n*n>>2
 
Anonymous
4:10 AM
@LeakyNun Not the same thing
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
Also, check out my recent answer. It's cool.
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@HelkaHomba That's way too many carets, haha.
 
Leaky Nun
Leaky Nun
@Dennis How should I say it?
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
I can post it in the chatroom: a=('A'..'Z').to_a;l=a.length;l.times {l.times {|i|$><<a[i]};a.rotate!;puts}
 
Anonymous
@DmitryKudriavtsev It got closed because we already have another basically identical challenge.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
4:11 AM
No
The REPL one
 
Leaky Nun
Leaky Nun
@Mego range(x+2)
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@HelkaHomba Actually, I'd love to play MC minigames, but I'm on vacation without a computer right now, so I don't think I can.
 
Dennis
Dennis
@LeakyNun I don't know. Unless you require the output to be a string, that regex idea if flawed. Personally, I'm a fan of allowing any sensible output format.
 
Leaky Nun
Leaky Nun
@Dennis editado
 
orlp
orlp
I have an answer
but am not happy with it
until I get this check right
I feel really stupid right now
there must be an easy check to see if a number is of the form floor(n*n/4)
 
Dennis
Dennis
4:18 AM
@LeakyNun \o/
 
Leaky Nun
Leaky Nun
@Dennis eh, 1j
 
Dennis
Dennis
That's how Python stylizes the complex number (0, 1).
 
Leaky Nun
Leaky Nun
@Dennis Is actually.TIO up to date?
 
Dennis
Dennis
>>> 0+1j
1j
 
orlp
orlp
that's how my output will look as well
 
Dennis
Dennis
4:21 AM
@LeakyNun Not sure. Mego usually pings me when there's something to pull.
 
orlp
orlp
basically this is my ungolfed answer right now 
n = 50
q=2
d=1
c=0
for i in range(n):
    if i==q*q//4:
        d *= 1j
        q += 1
    c+=d
but I want to get rid of q
 
R. Kap
R. Kap
@xnor Is it easier to understand now?
1
A: Sandbox for Proposed Challenges

R. KapHow Many Rectangles in the Grid? code-golf Consider this 3 x 3 grid of rectangles: How many rectangles are there? Well, counting visually, we can see that there are 36 rectangles, including the entire plane itself, which are all shown in the animated GIF below: The Task The counting of re...

Anymore feedback anyone?
 
El'endia Starman
El'endia Starman
I like the animated gif. It's like the perfect way to show all the rectangles.
 
orlp
orlp
ok
so checking a number is of the form floor(n*n/4) = x
is equivalent to checking x*4 = (n*n) - (n*n)%4
 
R. Kap
R. Kap
@El'endiaStarman I also wanted to do one for a 4 by 4 grid, but who would want to watch a 100 frame GIF showcasing rectangles?
 
El'endia Starman
El'endia Starman
4:26 AM
@R.Kap Haha, yeah, you don't need the 4x4 grid at all.
 
R. Kap
R. Kap
I feel like a 3 by 3 example is sufficient.
 
Leaky Nun
Leaky Nun
@R.Kap Include the formula
 
El'endia Starman
El'endia Starman
@LeakyNun It's on the OEIS page.
 
Helka Homba
Helka Homba
@LeakyNun Nah. Let people work it out for themselves
 
Leaky Nun
Leaky Nun
@El'endiaStarman alright
@HelkaHomba noted
 
Nathan Merrill
Nathan Merrill
4:31 AM
anybody want to make the "how many rectangles with unique dimensions" challenge?
or simply the "given a list of integers, count the number of unique ranges"
 
Leaky Nun
Leaky Nun
@NathanMerrill I don't get it
 
Nathan Merrill
Nathan Merrill
also, pretty GIF
 
Leaky Nun
Leaky Nun
@Mego Do you have any intention to include extended commands?
 
Nathan Merrill
Nathan Merrill
@LeakyNun with the numbers [1,2,3,5], you have 4 possible ranges. 1->(1,2), 2->(1-3),3->(2->5),4->(1->5)
 
Leaky Nun
Leaky Nun
@NathanMerrill Eh, I doubt if that is how the word "range" is used
 
Nathan Merrill
Nathan Merrill
4:35 AM
When googling for any literature, I tried "range", "difference", and "distance"
 
Leaky Nun
Leaky Nun
I would like to see an MATL answer because MATL has a built-in spiral (1Y4)
 
Nathan Merrill
Nathan Merrill
so take your pick :)
 
orlp
orlp
what is the golfiest way in Python to ceil a number?
 
Leaky Nun
Leaky Nun
@NathanMerrill like this
 
Anonymous
@LeakyNun In the future. They're not very high on the priority list
 
Nathan Merrill
Nathan Merrill
4:36 AM
@LeakyNun yeah, but I'd be interested in efficient solutions (if its possible)
yours (I'm guessing) is O(n^2)
 
Anonymous
0x03-0x06 (the suit symbols) will probably end up being the prefixes for two-byte commands
 
Leaky Nun
Leaky Nun
@Mego nice
@NathanMerrill yes
 
Quill
Quill
@orlp -(-a//b)
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
so... yeah. a=('A'..'Z').to_a;l=a.length;l.times {l.times {|i|$><<a[i]};a.rotate!;puts}
Dammit
wrong paste
 
Nathan Merrill
Nathan Merrill
obviously O(n) is lower bound (and I'm not sure if its achievable), but I'd bet there's a O(n*log(N)) solution
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
4:38 AM
I need undelete votes and reopen votes.
 
Leaky Nun
Leaky Nun
@DmitryKudriavtsev You need to write better challenges.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
>tfw ooh burn
That challenge is good.
 
Anonymous
@LeakyNun I haven't committed anything since the last time I asked Dennis to pull, so yes, it's up-to-date. I've been a little busy getting married to do much work on the language :)
 
Leaky Nun
Leaky Nun
@Mego It's alright, I thought 0xD8 was broken.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
@LeakyNun What do you find "bad" about that challenge?
 
Nathan Merrill
Nathan Merrill
4:41 AM
@DmitryKudriavtsev the broad part of the challenge is "It should support executing single commands and evaluating expressions, but supporting more complex constructs is not required"
 
Leaky Nun
Leaky Nun
@Mego Will you be overloading atoms with their inputs in reversed order if their inputs are of different types?
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
nd?
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
@DmitryKudriavtsev It's unclear
 
Leaky Nun
Leaky Nun
@DmitryKudriavtsev pretty much what Nathan and Dr Green Eggs said
 
Nathan Merrill
Nathan Merrill
what is a "single command" and what is a "complex construct"
 
Anonymous
4:42 AM
It is a little broken - it's supposed to push a list, not each individual sublist. I messed it up, though, and haven't had time to fix it.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
unclear?
 
orlp
orlp
@Quill yeah just re-discovered that as well
 
Anonymous
@LeakyNun If it makes sense to. Some commands would make sense to be commutative.
 
Leaky Nun
Leaky Nun
@Mego e.g. 0xD8
 
Nathan Merrill
Nathan Merrill
@DmitryKudriavtsev I think we intuitively understand what you want, but unfortunately, we have to get specific with things, otherwise people will take shortcuts to golf it down more
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
4:43 AM
@NathanMerrill Like what?
 
Nathan Merrill
Nathan Merrill
well, define exactly what a "REPL" is
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
There is only one way to implement this in most languages and it is the right way.
 
Anonymous
@LeakyNun Exactly. + makes sense to be commutative, but j could be non-commutative and not cause much confusion.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
Ruby: loop{puts eval gets}
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
Here's more concrete thoughts. 1. "Extra credit" is never a good idea for code golf 2. It's either boring and trivial, or extremely difficult depending on the language.
 
Nathan Merrill
Nathan Merrill
4:44 AM
@DmitryKudriavtsev right, but what if my language doesn't have such constructs?
 
Leaky Nun
Leaky Nun
@Mego so will you?
 
Anonymous
@LeakyNun Eventually
 
Nathan Merrill
Nathan Merrill
what if I only accept addition
so, if you type in "4+5", it'll work, but anything more complex, it won't
 
Downgoat
Downgoat
@Mego Congratulations!
 
Nathan Merrill
Nathan Merrill
is that valid?
 
xnor
xnor
4:44 AM
@R.Kap the presentation is great, but the challenge is totally trivial because there's a formula
n*(n+1)*m*(m+1)/4
Leaky Nun pointed it out earlier
 
Anonymous
@Downgoat Thanks :)
 
Nathan Merrill
Nathan Merrill
@R.Kap I'd totally do a part 2, where you ask for the number of rectangles with unique dimensions
 
Dennis
Dennis
@DmitryKudriavtsev We had that discussion before. In this current form, the question is underspecified and thus too unclear for PPCG. Undeletion and reopen votes wouldn't help; the question just would get closed again. If you specify it properly, you can flag it for moderator attention so it can get undeleted.
 
Leaky Nun
Leaky Nun
@Mego Would it be better to do 5²u instead of 5Pτ?
better in terms of intuitiveness
 
Anonymous
Eh. If there are multiple representations, I just go with whichever I thought of first.
 
Nathan Merrill
Nathan Merrill
4:47 AM
er, I didn't realize you can edit deleted answers/questions
 
Sherlock9
Sherlock9
Hey all
 
Nathan Merrill
Nathan Merrill
or is that only a limitation if you didn't post it?
 
Dennis
Dennis
As long as you can find it, you can edit it.
 
Nathan Merrill
Nathan Merrill
@Sherlock9 hey!
@Dennis for both questions and answers?
oh, its comments I'm thinking of
ignore me :)
 
Dr Green Eggs and Iron Man
Dr Green Eggs and Iron Man
Comments can't really be edited either way
 
Anonymous
4:48 AM
@NathanMerrill Yep, comments can't be edited once deleted because they get completely destroyed, not just tagged as "deleted"
 
Leaky Nun
Leaky Nun
@Mego \o/
 
Nathan Merrill
Nathan Merrill
I was thinking you can't add comments after a post is deleted
not that you could restore deleted comments :)
 
Dennis
Dennis
@Mego Not true.
 
Leaky Nun
Leaky Nun
@Downgoat Are you planning to use Cheddar on my new challenge?
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
@Dennis How can I improve it?
Also, Scratch is god for code golf.
good* but it works either way
 
Sherlock9
Sherlock9
4:51 AM
@LeakyNun You always say "my new challenge" but you post so much that I never know what your newest challenge is?
 
Leaky Nun
Leaky Nun
@Sherlock9 I thought you can see on the main site
 
Nathan Merrill
Nathan Merrill
lol
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
So THAT's how you get so much rep.
 
Sherlock9
Sherlock9
Can you start saying things like "my newest challenge at this link" or "my newest Wolstenhome challenge"
 
Zwei
Zwei
I can't recall how scratch is scored, but I also can't recall it ever outgolfing any actual golfing langs
 
Leaky Nun
Leaky Nun
4:52 AM
@Sherlock9 It's literally the first challenge here
 
Sherlock9
Sherlock9
But I rarely check the main site. Most of the time, I'm already on a challenge or I'm chatting here with you!
 
Leaky Nun
Leaky Nun
@Sherlock9 alright
 
Anonymous
@LeakyNun By our powers combined, we've managed to halve the length of the solution!
 
Leaky Nun
Leaky Nun
@Mego nice
 
Dennis
Dennis
in Discussion between Dmitry Kudriavtsev and Dennis, Jul 23 at 2:03, by Dennis
As I've said before, a reference implementation cannot be a replacement of a spec. Porting your Ruby code to some languages might be rather straightforward, although there could be subtle differences. In other languages, there is no way to do exactly the same because they are too different. If the task is impossible in some languages, that's fine, but you still need a specification (by capabilities, not a white- or blacklist) that tells us in which languages it is impossible.
 
Leaky Nun
Leaky Nun
4:53 AM
@Mego Can't you use 5²u instead of 5Pτ?
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
@Dennis I DID say that:
 
Leaky Nun
Leaky Nun
@Mego It would be better if you write 26 13 in the score of your answer
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
> This challenge is only feasible in scripting languages such as Ruby and Python, not compiled languages such as C++.
 
Zwei
Zwei
I remember essentially solving that spiral problem in reverse for project euler
 
Anonymous
@LeakyNun While it can be used, it offers no benefit over the current representation. Like I mentioned earlier, I use 5Pτ because that's the representation I thought of first.
 
Dennis
Dennis
4:55 AM
@DmitryKudriavtsev That's not a spec. I'm also not convinced that it's true. Many compiled languages also have a REPL.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
Huh?
 
Zwei
Zwei
and you could create a brainf*** repl in C++, couldn't you?
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
What are those?
 
Leaky Nun
Leaky Nun
@Mego Eh, benefit depends only on the point of view
 
Sherlock9
Sherlock9
Then the challenge isn't exactly the best idea. Writing challenges specific to a language or a set of languages is too restrictive around here
REPL = read, eval, print loop
 
Anonymous
4:56 AM
@LeakyNun I generally do not post crossed-out old scores in my answer headers. If someone is interested in the golfing process, they can look at the edit history and see the previous scores there.
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
@Zwei
> The interpreter should interpret the language it is written in.
 
Leaky Nun
Leaky Nun
@Mego noted
 
Zwei
Zwei
oh
 
Anonymous
@LeakyNun Objectively, the benefit would be shorter code. Since it's the same length, there's no reason for me to prefer one over the other.
 
Zwei
Zwei
I saw the challenge earlier before that part was edited in
 
Leaky Nun
Leaky Nun
4:56 AM
@Mego noted
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
It was edited to address the close votes.
Clearly that did nothing.
 
Zwei
Zwei
I haven't written a challenge before, mainly because I can't come up with non-trivial challenge ideas, but have you even tried running your challenge through the sandbox?
 
Nathan Merrill
Nathan Merrill
@Zwei the pain of coming up with non-triviality
I feel you :)
 
Dmitry Kudriavtsev
Dmitry Kudriavtsev
@Zwei Sandbox?
I have an idea for a non-trivial challenge!
 
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