The Nineteenth Byte

@Calvin'sHobbies Aren't you the one that told me to stop referencing 90s songs? I took that to mean "stop referencing songs", not "make them older songs."

Anonymous

Hey Alex I'll accept you as my friend in spite of your wrongness in exchange for a chat refresh :P

Geobits

Yep, because friends are only good for what they can do for you :P

Alex A.

>__>

Anonymous

Yay ty

Anonymous

<3

Anonymous

4:25 AM

Now I really am a classy penguin

Calvin's Hobbies

@Mego I thought it was some sort of drone in midair at first fyi

Alex A.

I did too

Anonymous

@Calvin'sHobbies Penguin drone :P

Geobits

I recognized it right away >_>

Anonymous

It's hard to get a good avatar for the tiny box

Calvin's Hobbies

4:26 AM

I preferred the chubby fish reacher

Alex A.

Your adorable penguin was good for the tiny box

Anonymous

16x16 isn't much

Geobits

I dunno, I think mine looks pretty good at 16x16.

Alex A.

Yes. Better than that weird guy's face.

Geobits

Not much room for details, though.

@AlexA. Anything is better than a goose.

Alex A.

4:27 AM

...geese... that was a dark time for all of us

Anonymous

There, I changed it again

Geobits

That one looks nice.

Anonymous

Much better, since I checked how it looked at 16x16

Alex A.

10/10 very penguin

Anonymous

... it needs a monocle

Anonymous

4:29 AM

Nah too much effort

3

:O

Anonymous

@Geobits Not sure if adorable or horrifying

Alex A.

4:33 AM

@Geobits Looks like he's bleeding from the eye

Anonymous

^

Anonymous

On second thought, no monocle :P

Geobits

@AlexA. Yes, monocles will do that if you aren't careful...

Alex A.

@Calvin'sHobbies 10/10 would unicode again

Calvin's Hobbies

it's supposed to be an owl

ninjowl more like

Geobits

4:36 AM

The owl looks like he had too much [insert stimulant of choice here].

Crystal math

Mathamphibians

(src)

Anonymous

@Calvin'sHobbies Freddy Mercury pose, Michael Jackson hair...

Geobits

If ever something needed to be enshrined in unicode, that's it.

Anonymous

4:40 AM

Also he should be looking down

Calvin's Hobbies

Maybe he's hailing a cab

Alex A.

Fabulously

Anonymous

I mean cmon they didn't even try that hard

Anonymous

It's the wrong arm!

Calvin's Hobbies

4:41 AM

@Mego Has he never lifted his other arm up?

Thomas Kwa

How's this for a challenge: Output all positive integers in increasing order of the sum of their divisors.

Anonymous

@Calvin'sHobbies Not in the famous photo :P

Alex A.

> all positive integers

Calvin's Hobbies

@ThomasKwa Where do you start?

Alex A.

That's a lot

Geobits

4:42 AM

Travolta is also pretty famous for it. Maybe they took it from:

Thomas Kwa

@Calvin'sHobbies At 1, because its sum of divisors is 1, which is the smallest.

Geobits

Considering the platform shoes and all ;)

Anonymous

@ThomasKwa Too similar to codegolf.stackexchange.com/questions/64944/…

Anonymous

Why on earth is Travolta in Unicode and Freddie isn't?

Thomas Kwa

@Mego I disagree.

Geobits

4:44 AM

@Mego A very good question.

Thomas Kwa

If it is, I think a different "output all positive integers in increasing order of their something" question would work

Calvin's Hobbies

@ThomasKwa I think it could work

Anonymous

Take the prime factorization prod p_i^a_i

Anonymous

Evaluate the exponent, concatenate the factors

Anonymous

So 18 would be 29

Anonymous

4:46 AM

36 -> 49

Anonymous

26 -> 213

Anonymous

Primes and powers of primes map to themselves

Thomas Kwa

Hmm, that would be good

Anonymous

In case of tie, order by original value

Thomas Kwa

do you want to sandbox it or should I?

Anonymous

4:47 AM

Gopher it

Anonymous

2 sandboxed challenges at a time is enough for me

gopher

golpher

Cod golph

5:03 AM

@AlexA. Dosa is almost your only question :o

Alex A.

No, I have one other

26

Q: Fond Memories of Past Primes

Consider a prime number p, written in base 10. The memory of p is defined as the number of distinct primes strictly less than p that are contained as substrings of p. Challenge Given a non-negative integer n as input, find the smallest prime p such that p has memory n. That is, find the smalles...

Calvin's Hobbies

almost

Alex A.

Oh yeah

2 questions, 298 answers

>___>

Calvin's Hobbies

And they made you the mod >_>

;)

Alex A.

ಠ_ಠ

Hey, only 59 more upvotes away from the gold code golf badge.

Anonymous

5:09 AM

@AlexA. Really easy to get if you post good questions oh wait

Alex A.

:P

Calvin's Hobbies

no, answers only

Anonymous

Oh

Alex A.

Question votes don't count toward tag badges

Anonymous

Disregard that, then

Anonymous

5:10 AM

Really easy to get if you know more than one language

Alex A.

Haha

I know a couple.......... maybe just one

Anonymous

At this point I don't think I know Python anymore

Anonymous

Just Seriously

quintopia

for instance, if you know TI-BASIC, Seriously, and Joy?

WINNER

btw, is there a Joy-based golfing language?

Alex A.

No, but there's 600 different JavaScript-based golfing languages

quintopia

5:12 AM

true dat

Geobits

Meh. Even I'm almost halfway to a gold [code-golf], so knowing many languages isn't everything ;)

Alex A.

Everyone loves Java though.

Not as many people love Julia.

Geobits

Right. You don't need to know many, just the right ones :P

Alex A.

I get more votes on my APL answers than Julia or R (the languages I actually know well). Maybe I should go 100% APL.

Geobits

I tried APL once. Once.

quintopia

5:13 AM

how do you view progress on all badges?

Calvin's Hobbies

Can someone give me a (hopefully meaningful) string of text with no spaces that is a triangular number in length?

Anonymous

I looked at APL once

Anonymous

My eyes bled

Geobits

Maybe it would have gone better if the one time I tried it wasn't to break a cop.

Anonymous

@Calvin'sHobbies a

Sherlock9

5:14 AM

@Calvin'sHobbies monkey

quintopia

@Calvin'sHobbies meaningful

Calvin's Hobbies

@Mego I'm thinking longer..

Alex A.

@Geobits It's fun! Confusing at first but surprisingly sensible once you get used to it.

Anonymous

@Calvin'sHobbies That's what she said :(

Alex A.

I actually find APL far more readable than J.

Calvin's Hobbies

5:14 AM

Better

Alex A.

Faster

Geobits

@Calvin'sHobbies How big? I could probably do a sentence with the first few triangular numbers in order.

Thomas Kwa

@Mego Sandboxed the challenge v

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Count up by factor keys code-golf math TODO: Better title Information Let the factor key of a number n be the result of the following process: Compute the prime factorization of n: n = p1e1 * p2e2 * p3e3 * ... where all pi are prime, distinct and in increasing order. Compute each piei; cal...

Sherlock9

@Calvin'sHobbies welcome to the jungle @ 21 bytes

Calvin's Hobbies

5:16 AM

If it helps they'll be in this format:

  f
 a s
t e r

Anonymous

@ThomasKwa Only issue I can think of is a stopping condition would be nice

Thomas Kwa

are you writing triagony?

Anonymous

Like, for input n, print [1,n), sorted by factor key

Anonymous

But that might make it too easy

Geobits

thisrunofcharactersismeantohavealengththatcanbeexpressedasatriangularnumber.did‌itwork?youtellme,ican'tcountverywellokay?

Thomas Kwa

5:17 AM

How about "print all of the numbers with factor key < (or ≤) n"?

Alex A.

Where did you get 11 in the example?

2^3 = 8, 3^3 = 27, 5^1 = 11?

Thomas Kwa

I just wrote it by hand; it's probably wrong

Alex A.

The prime factorization is 2^3 * 3^3 * 11^1

So I should have said where did the 5 come from :P

Thomas Kwa

Okay, fixed

quintopia

btw, does "stealth ping" mean "using the 'link my next chat message as a reply to this' button"?

Anonymous

5:20 AM

@ThomasKwa You may find this helpful for generating test cases

Anonymous

@quintopia No, it means the thing linked in the pinned message

Calvin's Hobbies

@Geobits Is that printable ascii? Why are the byte and char counts different?

Anonymous

@Calvin'sHobbies zwsp?

Geobits

@Calvin'sHobbies Are they? I just pulled up a character counter and typed until I hit 120. If there are differences, it isn't intentional.

quintopia

@Mego the linked message explains literally nothing. if it's all sarcasm please let me know that I will not be breaking rules by using that functionality.

Geobits

5:23 AM

@quintopia No, using the button is fine. A stealth ping is something else, and you can't accidentally do it.

Calvin's Hobbies

^

Thomas Kwa

@Mego Thanks

Anonymous

@quintopia If you would like, I can tell you how to do it. Just be aware that doing it may subject you to a ban.

VoteToClose

@Mego "BoatToClose"?

Anonymous

If you want to learn, I don't mind if you stealth-ping me exactly once

Anonymous

5:23 AM

@VoteToClose GoatToClose is best

Calvin's Hobbies

@quintopia Using the reply button is a normal, perfectly allowed ping

Geobits

GoatToClothes

Anonymous

Stealth-pinging isn't something you do accidentally

Thomas Kwa

@Mego I bet @Calvin'sHobbies has his finger on the banhammer

Anonymous

@ThomasKwa He can banhammer?

Calvin's Hobbies

5:24 AM

I'm no mod

Alex A.

No

Calvin's Hobbies

Nor am I against stealth pings

Anonymous

Didn't think so

Thomas Kwa

Huh, Calvin isn't a mod

Geobits

I'm not against the concept of stealth pings. The fact that the sole reason people use them is to annoy others is the problem ;)

Thomas Kwa

5:25 AM

I don't know why I thought

Anonymous

It was previously stated that, if the pinged person isn't bothered by it, the pinger probably won't get a suspension

Anonymous

I don't mind people doing a stealth ping for the sake of learning how they work, but I can't imagine another valid reason

Anonymous

Best stealth ping: do a real ping and delete your message

Calvin's Hobbies

@quintopia This is a stealth ping to Mego and a normal ping to you.

Anonymous

@Calvin'sHobbies zomg mods ban him /s

3

quintopia

5:27 AM

Well if it's not something I'll need to actively avoid, I really don't need to know.

Calvin's Hobbies

@quintopia You can look at the message history to see how it's done -> chat.stackexchange.com/messages/25779715/history

Anonymous

I thought doing the full username without the @ also worked as a ping

Geobits

No, just saying Mego doesn't ping anyone.

Anonymous

Interesting

Geobits

@Meg should work, though :P

Anonymous

5:28 AM

@Geobits ಠ_ಠ

Anonymous

SE really needs a private messaging system

quintopia

hmm. what about Ar@megoddon!

guess it has to end in space

Sherlock9

Hello everyone

Geobits

@Mego Eww, I might have to quit SE if they did that.

Anonymous

So many more chat shenanigans could go on if people could private message to organize them

Geobits

5:30 AM

@quintopia You need at least the first three letters, too.

quintopia

that seems like an argument against them

Anonymous

@quintopia The ping has to be a prefix of the name at least 3 chars long

Sherlock9

How do you convert int to str in Pyth?

quintopia

by magic

` should do it

Geobits

You don't. You learn a better language >_>

Anonymous

5:32 AM

Like Seriously

Sherlock9

@Geobits ಠ_ಠ

Anonymous

$ is str in Seriously

Sherlock9

Well, obviously, but later

VoteToClose

@Geobits @Sherlock9 Like Vitsy!

TanMath

Hey all!

VoteToClose

5:44 AM

ಠ_ಠ It happened again.

@TanMath Hi!

TanMath

why all the downvotes?!

VoteToClose

On what?

Calvin's Hobbies

Who's ready to be the fgitw?

TanMath

my sandboxed post!

5 hours ago, by TanMath

0

A: Sandbox for Proposed Challenges

Determine if a number is a square palindromic number Just some time ago, I was looking at my user number, 10401, and realized it is a palindromic number with only squares. So now, I want to find many more number like this, and you can help me by writing s program that detects whether or not a nu...

VoteToClose

You need to add more of an explanation. Plus, you're stating it wrong - those numbers aren't square palindromes - they're concatenations of single digit squares that form a palindrome.

Thomas Kwa

5:55 AM

^

There's also no reason to have the bonus.

Calvin's Hobbies

Thanks for the triangle texts @Geobits and co

TanMath

@ThomasKwa ok.. I was going to change it so it is not specific to just my account.

Anonymous

@Calvin'sHobbies me

VoteToClose

@TanMath 1491 is not a palindrome.

TanMath

@VoteToClose ok...is there an OEIS page for this?

Anonymous

5:57 AM

@TanMath If only OEIS had a search feature...

TanMath

@VoteToClose 1 is a square, 49 is a square, so it is a square palindrome

@Mego oh the sarcasm!

VoteToClose

No, it's not. That's like claiming 49 is a palindrome.

Anonymous

@TanMath Do you understand what "palindrome" means?

Calvin's Hobbies

@TanMath 1491 != 1941

VoteToClose

If you can cut that number in half lengthwise, reverse half of it, and have the same number, then you can say that. Otherwise, no.

14941 is a "square palindrome", though.

Calvin's Hobbies

5:59 AM

Same with 2525

and 125251

TanMath

^ all those are messed up?

VoteToClose

^ These aren't palindromes, unless you change base.

Anonymous

@VoteToClose Or just get the same thing when reversing it, which is way simpler

VoteToClose

Palindromes must be reflective no matter what you say.

Calvin's Hobbies

@VoteToClose I guess he means that 1 25 25 1 is a kind of "palindrome". Same with 1 49 1. It is confusing though

VoteToClose

6:00 AM

But they're not.

Also, are single-digit palindromes approved?

Anonymous

@TanMath Is it supposed to be that, if you split the number into a list of perfect squares, it's palindromic?

VoteToClose

^ Is that right?

TanMath

@Mego yes!

Anonymous

Then say that in the sandboxed post

VoteToClose

Then all you have to do is list out primes. o-o

Calvin's Hobbies

6:01 AM

@VoteToClose Like the list [1, 25, 25, 1] is a palindrome, so to speak. But yeah, calling them palindromic numbers is wrong

TanMath

maybe then I make two seperate challenges!

or would they be too similar

Please don't.

why not?

Try for one first

^

Anonymous

6:03 AM

^

^

ಠ_ಠ

hehehe

2

Q: Triangulating Text

Write a program or function that takes in a string guaranteed to only contain printable ASCII characters except for space, and to be a positive triangular number (1, 3, 6, 10, 15, ...) in length. Print or return the same string, but shaped into a triangle using spaces. Some examples will best sh...

code-golf string ascii-art arithmetic sequence

xsot

^ That looks very familiar..

Calvin's Hobbies

6:08 AM

possibly, maybe a dupe

xsot

I remember now: golf.shinh.org/p.rb?char+pyramid

TanMath

It is fixed now, tell me what you think!

TanMath

6:26 AM

also, i have an idea for another challenge!

VoteToClose

@GamrCorps You need to add an explanation of how to install the filter for Mac as well. ;P

TanMath

write the shortest search engine

VoteToClose

Wait. That was browser, not search engine.

Calvin's Hobbies

Dupe pretty sure

VoteToClose

Can you write a search engine though?

Or do you just make a filter for google?

Because a search engine would need a repository.

TanMath

6:32 AM

well, let us say we just search one html file that I write up. You implement a simplex crawler, indexer, and search function without builitins to do the job

@VoteToClose no, just one file is fine

TanMath

6:50 AM

would this code work for the polygon challenge?:

import cv2
import numpy as np
img = cv2.imread('dave.jpg')
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
edges = cv2.Canny(gray,50,150,apertureSize = 3)
lines = cv2.HoughLines(edges,1,np.pi/180,200)
n=0
for i in lines[0]:
    n+=0
print n

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