The Nineteenth Byte

Adám

5:00 PM

@Neil One.

HyperNeutrino

Proton: n=>"\n".join("Happy birthday "+(_-3?"to you":"dear "+n)for _:1..5)+"."

AdmBorkBork

@Adám PowerShell, 70 bytes

HyperNeutrino

@AdmBorkBork hey cool a tie

NieDzejkob

@Adám How bad is t='to you';print('Happy birthday %s\n'*4%(t,t,'dear '+input(),t)) (65 bytes) in Python 3?

Pavel

@Adám Try it online!

Mr. Xcoder

5:05 PM

@NieDzejkob missing period. Try adding a +'.'

Neil

@Adám Charcoal, no leading newline, 41 bytes: ≔to youηＥ⟦ηη⁺dear θ⁺η.⟧⁺”↓$`‖{+≧¶LωＦ⌀”ι

NieDzejkob

@Mr.Xcoder fixed for 69 bytes

HyperNeutrino

Proton 69 bytes, stolen from NieDzejkob: print("Happy birthday %s\n"*4%((t="to you"),t,"dear "+input(),t+".")) :P :P

Conor O'Brien

@Adám Stacked, 56 bytes: voila

AdmBorkBork

@HyperNeutrino Now 64 bytes

HyperNeutrino

5:06 PM

68: t="to you"print("Happy birthday %s\n"*4%(t,t,"dear "+input(),t+"."))

Marcus Andrews

Is there a shorter way to take a list of space-delimited integers and print the ascii-coverted phrase?

gets.split(" ").each{|x| print x.to_i.chr}

HyperNeutrino

@AdmBorkBork 59: n=>"Happy birthday %s\n"*4%((t="to you"),t,"dear "+n,t+".")

Pavel

@Adám can we take input with two leading newlines?

HyperNeutrino

@MarcusAndrews I don't think so, other than the extra space (I think)

AdmBorkBork

@HyperNeutrino Congrats, I think 64 is shortest that I can come up with

HyperNeutrino

5:10 PM

yay

AdmBorkBork

;-)

Conor O'Brien

@MarcusAndrews 31 bytes

DJMcMayhem

Now someone should do it in brain-flak :P

Marcus Andrews

i see

is gets the quickest way to get and discard input?

Conor O'Brien

I believe so

(keep in mind $< holds all stdin)

Pavel

5:13 PM

$< is shorthand for ARGF

Conor O'Brien

@DJMcMayhem is there a text generator for brain-flak?

DJMcMayhem

@ConorO'Brien No, mostly because it would be crazy hard to make it efficient. However, there is brain-flak.github.io/integer and asciitable.com

Conor O'Brien

that sounds like a challenge

I accept

DJMcMayhem

Which? Doing the happy birthday challenge, or making a text generator?

Conor O'Brien

the text generator

AdmBorkBork

5:16 PM

@HyperNeutrino No, wait, 60 bytes

HyperNeutrino

ooh nice

Pavel

@DJMcMayhem 0/10 doesn't support 0.

DJMcMayhem

Woah, you're right

I didn't know that

Then again, I didn't write it. IIRC @ASCII-only did

Marcus Andrews

is there a way in Ruby to print the missing digit from a concatenation of 9 digits 1-9?

AdmBorkBork

@HyperNeutrino Yuss, 59 bytes

Marcus Andrews

5:17 PM

i.e. 3265?47198

bad example

3265?7198 output 4

HyperNeutrino

ooh nice

impressive since proton is inherently meant to be golfier ._.

AdmBorkBork

KC can be a strong suit in PowerShell if there's lots of repetition.

Marcus Andrews

or is there a ruby way to take an integer n, followed by n lines, print "true" if the line is a palindrome, else "false"

right now I do
for i in' '*int(input()):w=input();print(["false","true"][w==w[::-1]])

Conor O'Brien

to take n lines of input try n.times{gets}

Marcus Andrews

gets.to_i.times{w=gets.chomp;p w==w.reverse}

is how I do it in ruby

any way to do it even shorter than this?

HyperNeutrino

5:27 PM

I had gets.to_i.times{s=gets.chomp;p s==s.reverse}

lol that's exactly the same

Pavel

If there wasn't that first line you could just use the -p flag which was built for this exact purpose. ruby -pe '$_.chop!;$_=$_==$_.reverse'

Marcus Andrews

mm

Pavel

@HyperNeutrino @MarcusAndrews chop is shorter than chomp if you know there's a newline.

HyperNeutrino

oh ok

Marcus Andrews

mm looks like not always in my case

but good to know -- thanks

Pavel

5:32 PM

@MarcusAndrews It removes the last char, if you don't know that there's a newline it doesn't work.

irb(main):019:0> "foo\n".chop
=> "foo"
irb(main):020:0> "foo".chop
=> "fo"

DJMcMayhem

@ConorO'Brien If you're serious about doing this, one really important trick is relevant. If you wanted to print "ABC", the naive approach is to do (push_A), (push_B), (push_C). The important trick is that push_A also returns the value of A, so you could instead do ((push_A)()), to push A and B, and then (((push_A)())()) to push A, B, and C

Does that make sense?

Marcus Andrews

how about this one:

n = count of numbers to follow
list of numbers like 45 67 3 109 etc etc

print number of increasing steps and number of decreasing steps

Pavel

@DJMcMayhem BRB making brain-flak text generator challenge

Marcus Andrews

e.g.
5
4 7 2 3 7
output 3 1 (because there are 3 increases and 1 decrease)

my python2 approach is 94 bytes, can anyone beat?

Pavel

I'm thinking fastest-code.

DJMcMayhem

5:40 PM

Not meta-golf?

Adám

@Pavel Uh, ok.

Conor O'Brien

@DJMcMayhem yeah it does. I can do this pretty easily I think

is there code available for getting the constant?

HyperNeutrino

I just got 100 but definitely golfable

DJMcMayhem

@ConorO'Brien github.com/Brain-Flak/integer

HyperNeutrino

96

Marcus Andrews

5:43 PM

down to 91 on mine

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Triangle Clock Imagine a twelve-hour analogue clock (with a second hand). The hour, minute and second hands have lengths of h, m and s respectively. Given angles a and b (in degrees), what will be the time after midnight when the midpoints of the hands first form a triangle whose angles include...

Pavel

@Adám $_="Happy birthday #{$_.empty?||!$_ ?"to you#{$_?'':?.}":$_}" with -p.

DJMcMayhem

@ConorO'Brien feature-request Can you make it so that you can toggle whether or not it uses []? Because if you assume the stack starts empty, (or some particular size) then you can save tons of bytes. But you can't always guarantee that the input size is known/constant, so being able to toggle that off would be awesome

BTW, I'd be happy to host it on brain-flak.github.io

HyperNeutrino

back to 100 because of incorrect thing

down to 97 again

is I/O format strict?

New Main Posts

0

Q: Bobby's Booby-Trapped Safe

Bobby's booby-trapped safe requires an n-digit code to unlock it. Alex has a probe which can test combinations without typing them onto the safe. The probe responds Fail if no individual digit is correct. Otherwise it responds Close, including when all digits are correct. For example, when n=3, i...

Conor O'Brien

5:47 PM

@DJMcMayhem does the current method use []?

DJMcMayhem

@ConorO'Brien No because that concept doesn't work for pushing individual values, only multiple values

Or pushing an individual value with a specific stackheight

Conor O'Brien

ah, I see

Pavel

@Pavel s/\.empty\?/==?\n/

Conor O'Brien

I'm thinking about encoding the deltas as the solution using the same "core" method I used for my bf generator

HyperNeutrino

@MarcusAndrews What does your code give for 4 7 2 2 7

110 bytes now

Marcus Andrews

5:55 PM

2 2

i don't believe you'll get two in a row that are the same

HyperNeutrino

oh ok

but that would have been incorrect for your solution in that case but ¯\_(ツ)_/¯

Marcus Andrews

my code just checks for what's higher

and subtracts from n

HyperNeutrino

ok

my old solution gave 3 1 because it checked for what's lower :P

Marcus Andrews

ahh

HyperNeutrino

can I see what your solution is?

Marcus Andrews

5:57 PM

n=input()-1
V=map(int,raw_input().split())
h=sum(V[i+1]>V[i]for i in range(n))
print h,n-h

HyperNeutrino

ah ok

I had this

g=input()
k=map(int,raw_input().split())
s=sum(x<y for x,y in zip(k,k[1:]))
print s,g+~s

(I just golfed it down again after realizing that the print statement behaves differently than how I expected)

Marcus Andrews

ah

HyperNeutrino

for the solution that accounts for equal adjacent numbers:

g=input()
k=map(int,raw_input().split())
c=[cmp(0,x-y)for x,y in zip(k,k[1:])].count
print c(1),c(-1)

DJMcMayhem

Doesn't Jelly have a prefixes monad?

I could have sworn it had that, or something similar, but I can't find it

Mr. Xcoder

@DJMcMayhem It has Ƥ (a quick)

If you want plain prefixes, you could do ¹Ƥ

DJMcMayhem

6:07 PM

Jelly, 3 bytes: ⁸ƤY

The CMC is gone, but I'm gonna answer it anyway

Mr. Xcoder

The answer is invalid nonetheless. You add elements instead of removing the first

DJMcMayhem

Not true. It just prints them in the wrong order :P

Mr. Xcoder

@DJMcMayhem You can fix that nearly for free: ⁸ÐƤY

DJMcMayhem

Oooooh

Suffixes

Cool

HyperNeutrino

Proton: f=a=>a?[a]+f(a[1to]):[a]

Proton: f=a=>[a]+(a?f(a[1to]):a)

same length lol

could be -1 byte if Proton worked properly

DJMcMayhem

6:14 PM

What would that be?

HyperNeutrino

f=a=>[a]+(a&&f(a[1to]))

Neil

6:29 PM

@Adám Managed to get it down to 38 bytes: Ｇ↑⁴→²¹↓⁴”↓$2I|÷»¿%✳⁺v→↧³J”→↖.Ｐ← raedθ

Riker

@HyperNeutrino is && broken?

@cairdcoinheringaahing LOL, check the console after loading the page

it raises an "error" that says you have not disabled javascript

HyperNeutrino

@Riker probably

Adám

Pill reports when it’s ingested in patients who may have delusions of being spied on.

Marcus Andrews

Is there a shorter way to remove the most significant bit from a bunch of numbers?

e.g.
gets.to_i.times{n=gets.to_i;p n^1<<n.to_s(2).size-1}

Adám

@MarcusAndrews negate them?

Marcus Andrews

6:41 PM

?

Riker

try using binary negation I think he means

Marcus Andrews

Is there a shortcut for that in ruby? I don't think negation alone will do it

Anonymous

Are you trying to toggle the MSB or the highest set bit?

Marcus Andrews

I'm trying to remove the highest bit set

e.g. 500 -> 244

for n numbers (hence my gets.to_i thing)

Adám

@MarcusAndrews Actually a very nice challenge. Will you main it?

Marcus Andrews

6:43 PM

Dunno what that means

Adám

@MarcusAndrews Will you post it as a code golf challenge on PPCG?

Marcus Andrews

oh, sure, but I don't know the formatting yet -- is there a template?

for how you're supposed to post a main

Riker

it's not too hard

HyperNeutrino

all challenges look different so there's not really a template

Riker

just give a little explanation, then some test cases

Adám

6:44 PM

@MarcusAndrews I can write it up for you, and then give you my draft.

DJMcMayhem

@MarcusAndrews How about n^1<<Math.log2(n) ?

Marcus Andrews

if you're writing it you can probably main it rather than me passing yours off as my own

Adám

@MarcusAndrews It was your idea.

Riker

###Input###
Input explanation
###Output
Output explanation

###Test Cases###
    test -> test
    test -> test

###Other Rules

Anonymous

@MarcusAndrews Python: print(int(input()).bit_length()-1)

Riker

6:45 PM

@MarcusAndrews ^^, with a little blurb about the explanation on top

NieDzejkob

Is it possible to get notified of new answers on a specific challenge?

Riker

@NieDzejkob don't think so unless you're the owner

then it's automatitc

Anonymous

@Riker Automatic and sleep-disrupting :P

NieDzejkob

maybe something like a chatroom with just that answer's feed? Can you get notified of all messeges in a chatroom?

Riker

@Mego lol

@NieDzejkob all answers? yes you can

make a chat, find the question's RSS feed link, set it into feeds

Anonymous

6:47 PM

Oh wait that just prints the bit, I'm a doofus

NieDzejkob

How do you get notified of all messages in a chatroom, then?

Riker

@NieDzejkob what do you mean?

comments too? not possible iirc

Mr. Xcoder

@Mego x.bit_length()-1 -> len(bin(x))-3

Riker

how do you get notified when somebody posts a message in chat? not possible

HyperNeutrino

click the speaker icon in the top left of the sidebar and select "all my rooms"? idk

someone post a message that doesn't ping me

Riker

6:49 PM

ok

HyperNeutrino

yay it made a sound

Marcus Andrews

looks like len(bin(n))-2 is a little shorter than n.bit_length()

aaaand Xcoder beat me to it

Anonymous

Yep, so 40 bytes: n=int(input());print(n^1<<len(bin(n))-3)

NieDzejkob

@HyperNeutrino not sound notifications, the ones like when there's an answer to your question or a chat reply and you have the room closed

HyperNeutrino

oh ok

Riker

6:50 PM

@NieDzejkob that's not possible

@NieDzejkob if it's your question? automatically left in your inbox

HyperNeutrino

that would be really annoying to get like 1000 notifications overnight but no that's not a thing

Riker

you can set your inbox to email you if it hasn't been read in 30 min/1h/6h/1 day/etc. iirc

@NieDzejkob yeah, it's not possible if it's not your question

Marcus Andrews

surprised there isn't a builtin func for msb stuff

Riker

just searched meta

NieDzejkob

@HyperNeutrino not likely on the OEIS challenge

HyperNeutrino

6:52 PM

oh I thought you were talking about chat

you might be able to do some feed magic but idk

Riker

well, RSS feed readers can do it, but it's not gonna work with your SE inbox

HyperNeutrino

unless you make a thing read the RSS feed for OEIS challenge and then feed it back into chat along with an added ping to your username

Riker

oh true

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Lines per file Can't believe it was not questioned yet. I want the shortest script you can supply to take on all files on a directory and output a list in the format file number_of_lines Every possibility should be accounted as a valid line terminator: - <CR> - <LF> - <CR><LF> - <LF><CR> ...

Riker

@NewSandboxedPosts dupe

Marcus Andrews

7:00 PM

0

Q: Clearing the most significant bit from an integer

Input The input is a single integer n Output The output isn with its most significant bit set to 0. Test Cases 1 -> 0 2 -> 0 10 -> 2 16 -> 0 100 -> 36 267 -> 11 350 -> 94 500 -> 244 For example: 350 in binary is 101011110. Setting its most significant bit (i.e. the leftmost 1 bit) to 0 tur...

code-golf code-challenge bitwise

yes/no/change anything?

New Main Posts

CMC: Give New Main Posts a hug

HyperNeutrino

@MarcusAndrews lol you beat NMP by like 10 seconds but nice job :) see my comment

Adám

@MarcusAndrews Take a list!

Marcus Andrews

space-delimited? newline?

n first?

not sure what the usual format is

Adám

@MarcusAndrews Any format.

Riker

7:02 PM

NMP was pretty quick this time huh

also, I wonder how bad the spam would be if somebody fed all new SO questions into a chat

HyperNeutrino

@Adám Too late to change it now ;) sorry but it would've made the Jelly solution 1 byte longer and that cannot be tolerated

;)

Marcus Andrews

ok I made it into a list format

is it acceptable / better now?

Riker

I personally think it's better as the old format but that might be just me

Anonymous

@MarcusAndrews Don't do that.

HyperNeutrino

no, there are answer now so you can't make significant changes anymore

especially since it doesn't add anything to the challenge, you just have to split by newline (cumbersome I/O also is bad) and then map

Riker

7:05 PM

what hcallenge? his?

Anonymous

I rolled it back

Marcus Andrews

this is why I didn't want to post it >.>

Riker

yeah, no, @MarcusAndrews he meant "take the input as a list"

Marcus Andrews

I'm not familiar with the standards here

HyperNeutrino

you'll get used to it eventually :) also BTW I think the downvote on your question was automated, FYI

Riker

7:07 PM

@MarcusAndrews generally, leave your challenge the same in terms of what must be done

i.e. single integer input should stay, as it started like that

Marcus Andrews

I just think it's weird to ask me to post a challenge, not give all the details, then say some other format would be more fun, and then flog me in the post for not adhering to said nonmentioned standards

>:O

Riker

you can change that if no answers have shown up but it's generally a good idea to leave it

Marcus Andrews

i'm only half-seriously pissed at that

Riker

@MarcusAndrews yeah, Adam was just thinking what may be fun

:(

Marcus Andrews

Please let me know next time

Riker

7:08 PM

will do

Anonymous

@MarcusAndrews The suggestion was for you to post the challenge to main that you had posted to chat. Adam said that a list of integers would be fun, probably because of his obsession with APL :P

Anonymous

That in no way means "oh I had better change the challenge drastically to meet that suggestion, existing solutions be damned"

Adám

@MarcusAndrews Sorry about that. As you made it clear that you were new to the game, we should all have directed you to the sandbox.

Marcus Andrews

at any rate -- wow those codegolfs came in fast after posting it

did not expect that, lol

Anonymous

@MarcusAndrews That's pretty normal

Riker

7:13 PM

particularly for simple, if not easy challenges

Adám

@Mego Yup.

AdmBorkBork

That feeling when your code is 3x as long as Python or JavaScript. Feelsbadman.

HyperNeutrino

I should stop posting answers

yeah I'm going to stop for now lol

orlp

7:29 PM

believe it or not

but the challenge regarding binary XOR of rational numbers led me to this integral

this integral

wolfram alpha doesn't realize it's an exact 65/252

doing numerical integration instead

New Sandboxed Posts

7:42 PM

0

A: Sandbox for Proposed Challenges

Is my barcode valid? An EAN-8 barcode includes 7 digits of information and an 8th checksum digit. The checksum is calculated by multiplying the digits by 3 and 1 alternately, adding the results, and subtracting from the next multiple of 10. For example, given the digits 2103498: Digit: ...

FlipTack

for the first time ever I'm at the top of some kind of leaderboard...

then again, it's only tuesday.

caird coinheringaahing

8:02 PM

@NewSandboxedPosts Hey, I called dibs on that! :P

HyperNeutrino

how does the leaderboard work

I'm in #87 at +10 week rep but I've gotten +80 today ಠ_ಠ

Mr. Xcoder

@HyperNeutrino I have gotten ~~+120~~ +130 today but +55 shows on the leaderboard ಠ_ಠ

HyperNeutrino

lol

caird coinheringaahing

shouldiblamecaching.com

Mr. Xcoder

ಠ_ಠ Yes we should!

Poll: How much should I wait until I award Leaky the bounty? I wanted to attract attention on it, but it didn't receive any vote today

HyperNeutrino

8:12 PM

award it at the end of the bounty period

caird coinheringaahing

@Mr.Xcoder Wait til the bounty period

ninja'd :/

HyperNeutrino

also, question for the Clear MSB challenge: if I do it in minecraft, how should I do I/O? taking it as binary representation through levers seems like cheating considering it's about binary stuff... :P

Mr. Xcoder

ok, agreed (by the way, I might have delayed replies because my wifi sucks)!

And although Erik has already done this a couple of weeks ago, I sent another mail to shinh asking them to add Jelly to Anagol

caird coinheringaahing

@Mr.Xcoder I doubt that they will, given that it's for golfing :P

Mr. Xcoder

huh?

caird coinheringaahing

8:16 PM

Doesn't anarchy golf only (currently) do "proper" languages, such as Python and Ruby?

Mr. Xcoder

@cairdcoinheringaahing pff, no, it has Hexagony, GS2, Fish (><>)

caird coinheringaahing

@Mr.Xcoder In that case, definitely get Jelly there :P

Mr. Xcoder

(not to mention Labyrinth and Aheui)

HyperNeutrino

fish is not really much of a golfing language IMO

Mr. Xcoder

No but it's not practical either

HyperNeutrino

8:18 PM

true

FlipTack

and hexagony is definitely not...

Mr. Xcoder

We should get 05AB1E there too :p /joke

DJMcMayhem

What about brain-flak? I've thought about getting that on anagolf for a while

FlipTack

some kind of integration with TIO to allow any language on there would be neat...

Poke

@DJMcMayhem the whole day?

caird coinheringaahing

8:32 PM

@DJMcMayhem o/ Happy birthday!

FlipTack

long live DrMcMoylex :P

Marcus Andrews

how about this challenge: given two words of equal length, change one into the other one letter at a time iteratively from left to right

(no duplicates)

caird coinheringaahing

@FlipTack Who's DrMcMoylex?

HyperNeutrino

this minecraft thing is harder than I thought ._.

FlipTack

@cairdcoinheringaahing An old joke from the string interleaving challenge, trichoplax + DJMcMayhem = DrMcMoylex

he then changed his name to that for a few months

HyperNeutrino

8:35 PM

@MarcusAndrews what do you mean by "no duplicates"?

Marcus Andrews

e.g. inputs abcd race

output:
abcd
rbcd
racd
race

DJMcMayhem

@Poke At least the first 17 hours of it

Marcus Andrews

if you simply changed iteratively without eliminating duplicates you'd have racd twice since you're changing c to c

(not needed)

Poke

@DJMcMayhem Well now don't be too greedy. Share some day with the rest of us.

HyperNeutrino

@MarcusAndrews oh ok makes sense

FlipTack

8:36 PM

haha there we go, he's back to McMoylex

DrMcMoylex

@cairdcoinheringaahing Tis I

AdmBorkBork

@DrMcMoylex Your avatar looks exactly the same as DJMcMayhem's :p

DrMcMoylex

Just a coincidence

Marcus Andrews

I'm at 113 python3

caird coinheringaahing

@DrMcMoylex Are you one of DJMcMayhem's socks?

DrMcMoylex

8:39 PM

@cairdcoinheringaahing I'm his left sock

caird coinheringaahing

@DrMcMoylex So is DrGreenEggsAndHam (I think) his right one?

DrMcMoylex

It's actually DrGreenEggsAndHamDJ XD

caird coinheringaahing

ಠ_ಠ

ATaco

The evil DOCTOR MCMOYLEX has arrisen!

AdmBorkBork

@MarcusAndrews I've got 82 in PowerShell, taking input as a char-array

muddyfish

8:40 PM

I have no socks D;

caird coinheringaahing

Most people change their age on their birthday, DJ changes his name :P

Marcus Andrews

108 python3

Conor O'Brien

@DrMcMoylex what happened to DrHamJam

Marcus Andrews

97

AdmBorkBork

71 in PS

Try it online!

FlipTack

8:50 PM

@cairdcoinheringaahing holy crap, I just looked at your profile, you're spewing out languages like there's no tomorrow

DrMcMoylex

@ConorO'Brien I changed my name I guess

On Arqade, I'm still @geoham

Conor O'Brien

lol

Eric Tressler

@DrMcMoylex happy birthday

DrMcMoylex

Thanks! :)

HyperNeutrino

I posted a challenge that may have "practical" purposes in certain situations :D (just kidding, it's not really practical, but probably the most "practical" I've posted so far :P)

New Main Posts

8:59 PM

0

Q: Minecraft Inventory Management

Minecraft inventory management is hard. You have 17 diamonds, but you need 7 to craft an enchantment table, a pickaxe, and a sword. Do you pick them up and right click 7 times? Or do you left click once and right click twice and take the 7 left? It's so confusing! for those of you who are now co...

code-golf game

Adám

@MarcusAndrews APL (Dyalog), 24 bytes ∪(e,,\⍞),¨⌽(e←⊂⍬),⌽¨,\⌽⍞

Riker

github ceases to use git

@DrMcMoylex wut, you're back to moylex?

oh, sock

Conor O'Brien

woow

DrMcMoylex

@Riker If it was a sock, why am I still RO?

Riker

oh, not a sock?

I scrolled really far and found

25 mins ago, by DrMcMoylex

@cairdcoinheringaahing I'm his left sock

dzaima

9:06 PM

@MarcusAndrews SOGL, 11 bytes: {⁴;ēI1ž_}⁰║

Marcus Andrews

nice

AdmBorkBork

@Riker That's satire. Has to be, given some of the other articles (SpaceX Lands Man on the Sun, etc.) and their About page.

Pavel

@AdmBorkBork Well of course it is

AdmBorkBork

Given the prevalence of "online journalism" one can never be too sure.

caird coinheringaahing

@FlipTack Only 6 of them are usable/on TIO though :P

Well, one is usable, but not on TIO

AdmBorkBork

9:21 PM

CMC: One-liner sed date string to unixtime code-golf

Adám

@AdmBorkBork -1 for being language specific.

AdmBorkBork

I'll tag it tips so that it's okay to be language specific :p

New Main Posts

-1

Q: Soldiers, Mages & Calvary!

Here is logic-math puzzle, i wrecked my brain on solving it :) Consider simple game: Soldiers beat calvary; mages beat soldiers; calvary beat mages; We scouted out enemy and now know enemy number of each kind of troops: Es, Em, Ec; We have limited amount of each troop type: Ps, Pm, Pc; We ha...

programming-puzzle

Conor O'Brien

9:46 PM

@DrMcMoylex I got 244 bytes HW here through the generator. I haven't implemented any coring but rather I am trivially adding/subtracting

FlipTack

Challenge accepted

DrMcMoylex

@ConorO'Brien Coring?

Marcus Andrews

shorter way to output the first n terms of an arithmetic sequence given common difference r? (where r >= 0) ?

current approach:

n,r=gets.split.map(&:to_i)
s=""
n.times{|i|s+=(i*r).to_s+" "}
puts s.strip()

FlipTack

Thought this title was a typo, but did some research and found that in the US it's actually normal to write travelling with one L

TIL I guess

Pavel

@MarcusAndrews The arithmetic sequence starts at 0?

Marcus Andrews

9:57 PM

yes

5 2 -> 0 2 4 6 8, 3 0 -> 0 0 0

Conor O'Brien

@DrMcMoylex sorry, my own name lol. no idea if it will work in brainflak, but basically I separate the text into identifiable clusters (e.g. uppercase and lowercase) and modify characters respective from those cores. I feel like for brain-flak's case, I'll only be able to use two cores (one for each stack) but I'll have to review the language

Marcus Andrews

shorter:
n,r=gets.split.map(&:to_i)
puts n.times.map{|i|i*r}*" "

(55 bytes)

Pavel

n,r=gets.split.mape(&:to_i)
(0..n).each{|i|$><<"#{i*r} "}

DrMcMoylex

@ConorO'Brien Huh. Could you give an example? What would using that technique give for something like... uhm idk how about "AbcD"?

Riker

@AdmBorkBork well yeah, it's pretty clear satire

funny though

Pavel

10:00 PM

That's actually a bit longer

Riker

TIL the onion has a horoscope section

> You will die alone, unmourned, and unloved, but because you do it on live television, you’ll still manage to be considered a success.

Marcus Andrews

54 if I remove the ()
n,r=gets.split.map &:to_i
puts n.times.map{|i|i*r}*" "

HyperNeutrino

10:16 PM

@MarcusAndrews can you remove the spaces around &:?

DrMcMoylex

@HyperNeutrino Sure, but then it doesn't matter whether you grab items efficiently or not if you're gonna die either way

HyperNeutrino

well if you stored them in a chest you keep them :P

> You tend to think of yourself as a big, neurotic mess, but don’t sell yourself short. You’re also a big, psychotic mess on top of it all.

hey look a horoscope that's actually correct

Riker

> Don’t worry: You’re more than just a collection of annoying, loosely bundled neuroses. There are some tightly wound and dangerous psychoses in there, too.

sensing a theme here

Marcus Andrews

Yeah I believe so

oh, spaces, no

just the parens

so i save a char

Pavel

@HyperNeutrino No because then it gets parsed as the bitwise AND operator

HyperNeutrino

10:22 PM

oh rip

Adám

10:33 PM

@MarcusAndrews sounds like a code golf poem.

Marcus Andrews

XD

Marcus Andrews

11:25 PM

is there a skip-if-error thing in ruby at all?

i have another challenge, iterating over radixes 2-16 and outputting a number in that base if it can be converted as such (printing both the radix and the converted number)

x=input()
for i in range(2,17):
 try:k=int(x,i);print(i,k)
 except:1

shorter:
x=input()
for i in range(2,17):
 try:print(i,int(x,i))
 except:1

Marcus Andrews

11:45 PM

what was that shortcut for n+1 again?

-~n?

is there a quicker way to do triangle number n*(n+1)/2 other than n*-~n/2?

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