The Nineteenth Byte

7:00 AM

Uh... nope. Sorry, wrong number.

Can anyone explain the point of a "two-factor authentication" where you enter the phone number that the code is sent to?

Zach Gates

@feersum A confirmation message is sent to the phone number for the user to enter on the site

feersum

@ZachGates You've missed the point completely.

Zach Gates

If you don't have the phone connected to the number (or a phone, period) you can't get in to the account

^

feersum

If I can enter an arbitrary phone number, this does nothing to verify that I am the original account owner.

Zach Gates

7:06 AM

Right, but the basis is that, because it's your account, you'll enter your number

feersum

And if I had some phone it didn't recognize, you think it would have gone oh haha you can't use that phone ?

lol now Google says: "Google is not affiliated with the contents of code.google.com or its owners."

isaacg

7:34 AM

Hey everybody, check out my new code golf challenge

zyabin101

isaacg makes challenges! \o/

Is it the first one?

New Main Posts

2

Q: Strongly Connected Components

Two distinct vertices in a directed graph are strongly connected if there is path in the graph from each to the other. A strongly connected component of the graph is a subset of the graph such that each pair of distinct vertices in the subset are strongly connected, and adding any more vertices t...

Zach Gates

color.method.ac

isaacg

@zyabin101 This is my 22nd

zyabin101

@isaacg \o/ ==> /\o/\ ==> __o__

Optimizer

7:48 AM

bat?

Quill

man

Optimizer

wonder woman saves the day

it should have been named "Don't Bother Batman and Superman. See Wonder Woman"

zyabin101

@Optimizer No, my happy smile just dropped its hands.

Optimizer

smiles have hands too?

zyabin101

@Optimizer At least the \o/ one.

ven

8:06 AM

@AlexA. please do :)

Highlight by arity :D. Though that's made very complex due to pfns

@isaacg btw, thanks for your patience :P

zyabin101

$ head /dev/urandom | tr -dc [:alnum:]
MlxRkZd5VJU159DsBfRUdN31ULQziWi8iCf1jABs3WPs8CcHfXMLJkHWBUE7bPmfK6qmh2pdYCUm6Pu
71ZaYVJT0Fqwd3WBboyjqVtbpvInbhUfkukCvsweQzKdA2VltkAhcH4bfTyBqUylCtG4nGK6E8FVavJ
OoIKsuYJodtsMX4rO7u3uOS7uNd11S0pWP0NYCjcqv8CUTehnXVaBhAHK68EsarmUpikE1IeVjYf350
6ZkDKsiQpJx9cBd1qmhfEv7G5Xv92C4XH59X9Qheoe35fhQtr68

Quick and dirty solution for /dev/urandom.

Because /dev/urandom shoots new lines at random, the amount of data received as result is random.

But I can feed the result to a file as much as I want and avoid newlines. :)

That is good for managing a random box, for example.

Optimizer

trrrr trrrrr

Zach Gates

8:24 AM

I think my site's coming along pretty well

ven

The PPCG tabs are starting to pile up... Ugh

xnor

@isaacg for the output format where each vertex is labeled by its component, is a matrix OK?

i.e., the first row is the label of vertex 1, the second row is the label of vertex 2, etc?

isaacg

That seems like a bit much, to me.

I'd say no.

xnor

if each label were a number, would a list of those numbers be ok?

i guess, are you looking for the labelling of vertices to be something like a dictionary?

Sherlock9

8:46 AM

@ven They can get messy. I just closed about a dozen of them

Fatalize

@ZachGates might be me but I find your histogram to look blurry

isaacg

@xnor A list of the numbers would be fine. Basically, I want there to be a straightforward mapping of graph node to label. Index in a list is straightforward enough, numbered column of a matrix isn't really.

feersum

@isaacg Can the graph have 0 vertices?

isaacg

Yes

zyabin101

Can the graph have one vertex?

xnor

8:57 AM

@isaacg let me check that I understand

we can output a list l of arbitrary objects so that l[i]==l[j] if and only if i and j are in the same connected component?

treating the vertex labels as numbers [0,...n-1]?

isaacg

Sure

Wait

Let me think about that.

feersum

hehe, that allows one to offload a lot of work to the function caller

isaacg

This sounds like it can be used to skip a lot of the work

xnor

of course i have a short strategy in mind that would use it :-)

isaacg

Yeah.

I think offloading the work into the labels is not good.

I think it should be a label can either be a single vertex, or it can be a sequential numbering, and that's it.

I'll update.

xnor

9:02 AM

ok, that should also take care of cheap outs like "hash the object"

isaacg

Yeah.

Will update.

Zach Gates

9:25 AM

@Fatalize Could you take a screenshot?

Anonymous

mysql> select Choice1, Choice2, Choice3 from Election;
+-------------------+-------------+--------------------------------+
| Choice1           | Choice2     | Choice3                        |
+-------------------+-------------+--------------------------------+
| Alex A.           | Doorknob    | Dennis                         |
| Conor O'Brien     | CoolestVeto | El'endia Starman               |
| Mego              | Alex A.     | Martin BÃ¼ttner                |
| Alex A.           | Doorknob    | Dennis                         |

Anonymous

You people think you're soooo funny

Anonymous

But you see, I know to sanitize my database inputs

Anonymous

What sort of casual do you people take me for? :P

zyabin101

> Dennis');DROP TABLE results;--

ಠ_ಠ

Anonymous

9:36 AM

It's not even the right table name lol

isaacg

@Mego What is this from?

zyabin101

Who did the SQL injection now? >:|

Anonymous

@isaacg ppcg-election-mego.c9users.io

3

Anonymous

@zyabin101 I have their IP address, but that means peanuts to me

zyabin101

Martin Bумttner, you say?

isaacg

9:38 AM

Martin BÃ¼ttner

Anonymous

Yeah the terminal I copied that from was set to Latin-1

Anonymous

But the text data is stored as UTF-8

zyabin101

@isaacg Shows up as Martin BУМttner on Mozilla Firefox 45.0.1 on Windows Vista. Obviously, the system and browser are in Russian.

Anonymous

It depends on your browser encoding

isaacg

My browser shows it as Latin-1, is what I was trying to say.

zyabin101

9:40 AM

@Mego ISO Cyrillic. ಠ_____ಠ

Anonymous

The terminal showed it as Latin-1. I pasted the Latin-1 text. If it shows as anything but Latin-1, blame your browser.

Anonymous

It should be UTF-8, but I haven't yet figured out how to change the terminal encoding in cloud9

zyabin101

@Firefox45.0 ಠ_ಠ

Optimizer

BÃ¼ttner

haha

zyabin101

@Dennis your userscript repo is long empty.

> Care to check out the GitHub Channel on YouTube while you wait?

Anonymous

9:45 AM

Yes yes ü in UTF-8 renders as Ã¼ in Latin-1. You people are about 30 hours too late for the jokes, and about 10 years too late for any humor on the subject

Optimizer

at least newer than your DB schema

Anonymous

That doesn't make any sense

Optimizer

why can't you change your db encoding to utf?

Anonymous

It is encoded in UTF-8

Anonymous

The terminal uses Latin-1, and there's no obvious way to change that

isaacg

9:53 AM

which terminal?

Anonymous

10:06 AM

bash in cloud9

Anonymous

It's a web interface to bash, so it's not mintty (which I could much more easily configure)

Sherlock9

@Mego Ah dang, I can't insert more than 3. I wanted to add all the mods I liked :P

Anonymous

@Sherlock9 Nope, only 3 post parameters are used

Sherlock9

Well, looking at the list now, I would only not select 3 of the nominees, but only because I haven't interacted with them very much yet

isaacg

@Mego What does echo $LANG print?

Anonymous

10:20 AM

@isaacg C, as expected

isaacg

You could try changing that

zyabin101

@isaacg My machine outputs ru. Apparently $LANG in every shell means system spoken language, not system programming language...

isaacg

Mine is en_US.UTF-8

Anonymous

@zyabin101 ru is shorthand for ISO-8859-5

Anonymous

(aka Latin/Cyrillic)

zyabin101

10:22 AM

@Mego O_O

Anonymous

No, you see, to fix Mercurial, you need to do this:

Anonymous

apt-get purge mercurial && apt-get install git

zyabin101

It looks like Mercurial talks in my language for both LANG=ru and LANG=ru.UTF-8. I think the Git shell defaults to UTF-8.

@Mego ಠ_ಠ

Also, I have Windows.

Anonymous

Well then you have bigger issues :)

zyabin101

@Mego ಠ_ಠ

Anonymous

10:28 AM

I've updated the polling site to allow for changing your vote - simply voting for a different, valid set of candidates will change your votes in the database. Errors also make a little more sense. Also muddyfish has been removed from the options since they withdrew.

zyabin101

Oliver Ni?

Anonymous

Yep, they just nominated 5 hours ago

Anonymous

Candidate score is just a number, and trying to get more out of it than that will not benefit you

Anonymous

Look at what candidates have done and said, not a semi-arbitrary number next to their name

Don Muesli

10:52 AM

code-golf badge! \o/

codegolf.stackexchange.com/help/badges/89/code-golf

zyabin101

@DonMuesli Great! Now you can use your newly obtained high-rep hammer to hamper duplicate questions!

Just one vote to close as duplicate activates the high-rep hammer and immediately marks the question as a dupe.

moves back to playing around with the OpenSTV distribution

I'm interested: @Dennis if I get two high-rep hammers by earning, say, both the gold code-golf badge, and the string badge, and then dupe close a question with both tags, which hammer gets used?

Sherlock9

@DonMuesli Congrats!

Don Muesli

@zyabin101 I know, but I'll use that with care (I think it makes more sense in StackOverflow, where tags are "thematic")

@Sherlock9 Thank you!

Sherlock9

@DonMuesli I just need another 125 good answers on code-golf and then I'll get it too :P

Don Muesli

The fun is in the path, not in the destination :-D

Sherlock9

11:04 AM

Fair enough :D

Don Muesli

@zyabin101 Both are used. The question is badly smashed :-P

Sherlock9

Hm, still, it will probably take me till next semester to get there, unless this semester gets too time-consuming

I have a question guys. Given a random 2-colorable image (this would essentially be a bunch of lines or squiggles crisscrossing a square, so this could be a vector image), could you write a program to color that image?

zyabin101

11:22 AM

@Mego when the results of your caucus will be released?

Optimizer

11:35 AM

@AlexA. meta.codegolf.stackexchange.com/a/8739/31414 is very nice!

Sherlock9

12:15 PM

@Sherlock9 The description isn't quite right. A bunch of lines or squiggles crossing the image and not stopping anywhere on the image. Hence, 2-colorable

New Main Posts

0

Q: A Hackers Finishing Touch! Destroy the evidence

Assume you've written a Virus/Trojan/Worm/... and hid it somewhere under a pile of codes in some system. You only need the code to run once, and you know that it will. What you need to do now, is to destroy the evidence without injuring the system any further! since your code is part of the syste...

code-golf

LegionMammal978

Chat meta-challenge: Try to find a user on some site named LegionMammal978 (that existed before this challenge was posted) which does have a non-blank picture.

Sp3000

I suppose that depends on what you mean by "picture"

tac

12:43 PM

codegolf.stackexchange.com/q/18028 has attracted a high number of very low quality answers from new users (albeit not recently). Protecting it may help, but many of the LQ answers have severe content or formatting issues, or lack of details/golfing effort from the answerer. Do I go through and calculate solutions' scores, and edit in the scores, or do I flag them all as VLQ, or do I not do anything about it?

LegionMammal978

@Sp3000 Profile picture

Sp3000

jailmc.com/home/m/31636964/article/3734629

^^ I dunno what that counts as

zyabin101

@Sp3000 Invalid. LegionMammal978 meant Stack Exchange site.

> EMCAScript

^ from ECMA Standard 262, first edition, June 1997

Sp3000

> on some site

zyabin101