The Nineteenth Byte

R. Kap

5:00 AM

@LeakyNun How are you going to do this in 9 bytes? There can't possibly be any formula for this...

Leaky Nun

@R.Kap jelly.tryitonline.net/…

R. Kap

@LeakyNun Not correct for the test case [60, -210, -60, 180, 400, -400], [250, -150].

Output should be 11, not 15.

Leaky Nun

@R.Kap is 300x200 same as 200x300?

R. Kap

@LeakyNun Yeah.

New Main Posts

1

Q: Alphabet triangle

You are to print this exact text: A ABA ABCBA ABCDCBA ABCDEDCBA ABCDEFEDCBA ABCDEFGFEDCBA ABCDEFGHGFEDCBA ABCDEFGHIHGFEDCBA ABCDEFGHIJIHGFEDCBA ABCDEFGHIJKJIHGFEDCBA ABCDEFGHIJKLKJIHGFEDCBA ABCDEFGHIJKLMLKJIHGFEDCBA ABCDEFGHIJKLMNMLKJIHGFEDCBA ABCDEFGHIJKLMNONMLKJIHGFEDCBA ABCDEFGHIJKLMNOPONMLKJ...

Leaky Nun

5:03 AM

@R.Kap i count 12

R. Kap

@LeakyNun Well, I counted 11.

Leaky Nun

@R.Kap

[[190, 400], [150, 400], [120, 400], [220, 400], [340, 400], [270, 400], [240, 400], [400, 460], [390, 400], [400, 580], [400, 610], [400, 800]]

The dimensions of my 12 rectangles

by the way, 13 byte solution jelly.tryitonline.net/…

@R.Kap

Will there be repeated lines, e.g. [-250,-250],[10,20]? — Leaky Nun 8 secs ago

R. Kap

@LeakyNun No, there will not be repeated lines in the input arrays.

Leaky Nun

@R.Kap instead of saying to me, add it there

@R.Kap not in the comments, in the question

R. Kap

@LeakyNun I did.

Leaky Nun

5:11 AM

@R.Kap alright

R. Kap

@LeakyNun By the way, you are correct. There are 12 unique triangles. I missed one.

Leaky Nun

@R.Kap are you going to post it?

R. Kap

@LeakyNun Yeah, I'm just about to.

miles

@LeakyNun I don't understand ;` but I found Ṗ;Ṛ¶ØAḣJÇ€Çj⁷` albeit too slowly since both of you already posted

Leaky Nun

@miles it is `;\` halp borked

miles

5:16 AM

typos

:P

Leaky Nun

cumulative reduce

miles

I know i mistyped too

Leaky Nun

it is like / but keeps every result

miles

oo yes

R. Kap

@LeakyNun It's posted.

0

Q: Count the Unique Rectangles!

In my last challenge, you were asked to find all rectangles given a m x n grid of them. However, it turned out to be very trivial as there actually was a mathematical formula I did not even know about to solve the problem! So now, for a little bit more of a challenge, how about calculating the nu...

code-golf math

miles

5:17 AM

Jelly is like APL, the links automatically reduce over the prefix

I keep thinking J without the auto reduce

I give up on editing that

Leaky Nun

alright

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Building a math trick code-golfmath There's a neat math trick that runs as follows: Ask a friend to pick a number from 1 to 105 (inclusive). Tell them to divide that number by 3 and tell you what the remainder is. We'll call this x Then, ask them to divide their number by 5 and tell you wha...

Leaky Nun

@Sherlock9 do my challenge

Sherlock9

I'm not sure how, and I'm working on other stuff before I have to leave today

New Main Posts

0

Q: Count the Unique Rectangles!

In my last challenge, you were asked to find all rectangles given a m x n grid of them. However, it turned out to be very trivial as there actually was a mathematical formula I did not even know about to solve the problem! So now, for a little bit more of a challenge, how about calculating the nu...

code-golf math

miles

5:31 AM

;\

!!

@LeakyNun enclose in double backticks

Dr Green Eggs and Iron Man

5:51 AM

Does anyone in here know MATL?

Martin Ender

@NathanMerrill that is crazy and amazing. Thank you! :)

Destructible Watermelon

HELLO

zyabin101

6:09 AM

Hello

Destructible Watermelon

Could someone else please enter this challenge so I have some competition:

12

Q: Leo's Pokerface

Pokerface Introduction Leo enjoys playing poker, but his job at Tech Inc. is too demanding for him to learn how to play well. Leo, being a computer scientist, is not discouraged. He decides to take more time than it would have taken to just learn poker, and use it to write a poker bot to help h...

king-of-the-hill card-games

Dr Green Eggs and Iron Man

@Doorknob Do you think this answer is valid?

4

A: Create and write to a file

Vim, 15 + 1 == 16 bytes iHello World<esc>ZZ +1 byte for launching this with vim f. Additionally, this version works to: iHello World<C-o>ZZ If launching vim like this is not allowed, there is also: Vim, 18 bytes iHello World<esc>:w f<cr> Side note: this is a polyglot. The same thing wor...

miles

@Dennis I can't seem to get output when using a negative arg for range, ie -1R doesn't give [-1, 0, 1]

Doorknob

@DrGreenEggsandIronMan I suppose you should add two bytes instead of one because of the space before the filename. But other than that, sure, the extra argument can be treated as a command line flag.

Dr Green Eggs and Iron Man

6:26 AM

OK cool. Are you sure the space counts? I've seen perl -p count as +1 byte.

Doorknob

Right, because perl -pe 'foo' is one longer than perl -e 'foo'.

Dr Green Eggs and Iron Man

Wait huh? I don't know anything about perl, but how is perl -e 'foo' not extra?

Doorknob

-e executes the code that is provided as the following command line argument. It's a very typical way of running Perl code (especially considering Perl's nature as a command line tool).

Dr Green Eggs and Iron Man

Hmm. I can't find anything relevant on meta about scoring command line flags.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Write a VIC cipher decoder You've received a coded message from your ally that you know is encoded with the VIC cipher. As you know that the VIC cipher is notoriously convoluted, you want to write a program that will decode the VIC cipher but is small enough to hide from the enemy if you are cap...

Doorknob

6:33 AM

19

Q: On "interactive" answers and other special conditions

Interactive languages (and related issues) have afflicted me with a bunch of gripes regarding character count and program testing. Clarifying these should help coders in other languages like Mathematica and dc with similar issues. (And will also shut me up about it!) How much action on the user...

discussion characters clarification user-interface

super old though

Dr Green Eggs and Iron Man

Ok, thanks. I've updated the byte count.

Dennis

6:49 AM

@miles R lists all positive integers up to its argument, so it returns an empty array in this case. 1ŒR and -ŒR both return -1, 0, 1.

miles

@Dennis Ah I see, so is the note for R on the atom page outdated?

Destructible Watermelon

I have some competition in pokerface >:) They will be destroyed!

Dennis

@miles Oh, it still says that? That's how R behaved initially, but 0R being non-empty created a lot of edge cases... Will fix.

miles

ok no problem

@Dennis well I ended up with ŒRAạ¶26ÇÇ€‘ịØAj⁷ at 16 bytes for that problem but it was fun

R. Kap

7:06 AM

Anyone else want to try and answer my challenge?

0

Q: Count the Unique Rectangles!

In my last challenge, you were asked to find all rectangles given a m x n grid of them. However, it turned out to be very trivial as there actually was a mathematical formula I did not even know about to solve the problem! So now, for a little bit more of a challenge, how about calculating the nu...

code-golf math

Martin Ender

@Zgarb just taking a quick glance at the source it seems that github.com/iatorm/jellyfish/blob/master/vocab.py#L269 should have been @defun_binary?

R. Kap

@MartinEnder Hey! Congrats on 100k reputation! :D

Martin Ender

thanks :)

Dr Green Eggs and Iron Man

Let's make sure we incessantly congratulate @MartinEnder for the next 6-8 weeks.

:P

R. Kap

Well, I finally reached 2,000 today. Yay for me! :)

Dr Green Eggs and Iron Man

7:09 AM

Congrats!

R. Kap

I now have access to moderator tools.

That's cool

Dennis

@miles Certainly an interesting approach.

Dr Green Eggs and Iron Man

Oh shoot, that's not my terminal. >_>

Dennis

:D

Quill

Apple is speaking at a public security conference for the first time in ~5 years. congrats @radian! https://bgr.com/2016/08/01/ios-10-security-blackhat-hacker-conference-2016/ #BHUSA

Tweeted by bcrypt on August 1, 2016 at 9:14 PM

Cᴏɴᴏʀ O'Bʀɪᴇɴ

7:34 AM

tfw you are chatting on anofher service, make a typo, press up, and nothing happens. -.-

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