Make a program that simulates the basic logic gates.
Input: An all-caps word followed by 2 1 digit binary numbers, separated by spaces, such as "OR 1 0". The gates OR, AND, NOR, NAND, XOR, and XNOR are needed.
Output: What the output of the entered logic gate would be given the two numbers: ei...
@quartata do you have any idea on how I could attempt hijack an Object-C msg/method call with LD_PRELOAD or something... hex editing not giving much success but given the weird messaging nature of ObjC not sure if possible
Scoring Chinese Hearts
card-games code-golf
Chinese Hearts, also known as Gong Zhu (拱猪, Chase the Pig), is a variance of Hearts game. It is a 4 player card game which aimed to earn higher points. You may read more about it on Wikipedia. This time, we want implement a program (full or function) ...
Qwixx KoTH
In this King of the Hill, our bots will be playing Qwixx. In Qwixx each player will try to get as many points by picking the sum of two dices and marking that number on your own scoresheet. The scoresheet has four rows with different colors (red, yellow, green, blue) with numbers rang...
There are tasks explicitly defined with Unicode. For example, Supreme Sum String
To correctly work with a unicode data, a script should be saved as UTF-16 or UTF-8 with BOM. Even if the script itself does not contain Unicode characters. At least for Powershell it is.
How to calculate the length...
Determine the length of a UTF-8 byte sequence given its first byte. The following table shows which ranges map to each possible length:
Range Length
--------- ------
0x00-0x7F 1
0xC2-0xDF 2
0xE0-0xEF 3
0xF0-0xF4 4
Notes on gaps in the table: 0x80-0xBF are continuation bytes, ...
Developing an application in c# to replace variables across strings.
Need suggestions how to do that very efficiently?
private string MyStrTr(string source, string frm, string to)
{
char[] input = source.ToCharArray();
bool[] replaced = new bool[input.Length];
for (i...
This question has been answered previously on all major computer languages. But can you do that in C++ ? The Tower of Hanoi (also called the Tower of Brahma or Lucas' Tower[1] and sometimes pluralized) is a mathematical game or puzzle. It consists of three rods and a number of disks of different ...
If you have ever had any exposure to Japanese or East Asian culture you will have surely encountered the Amidakuji game:
As Wikipedia explains, it is a type of lottery drawn on paper and used to randomly select a permutation of N items.
For example, it may be used to randomly assign a starti...
Let us define the "multiplicative deltas" of values \$[\; a_0 \cdots a_N \;]\$ as:
$$
[\; a_1 / a_0 \cdots a_{i+1} / a_i \cdots a_N / a_{N-1} \;]
$$
The reverse operation - namely "multiplicative undelta" - returns values such that the above operation results in the given values.
Example
Give...
You are given as input a target string
Starting with an empty string, you add characters to it, until your
new string is same as the target. You have two options to add
characters to a string:
You can append an arbitrary character to your new string, with
cost x
You can clone any substring o...
@AdmBorkBork It wouldn't surprise me if PPCG is dying, and I think the site software's to blame; the incentives are wrong, meaning that what the community would likely enjoy, and what the software pushes the community into, are different; and that in turn means it's easy to burn out
2
in particular, the incentives are very much in favour of quickly-written, low-effort answers, whereas some people prefer both creating and reading high-effort answers
well, it should be better than the SE software in most respects (although the fact that, as of last time I checked, it doesn't support logins of its own mean that I'm unlikely to use it); however, I'm concerned that it's too close to SE software and thus will make some of the same mistakes
as for TNB dying, in general SE chat is very annoying to idle because it can't "share" with other chat services, you need to give SE chat a tab of its own in a browser with JavaScript enabled
and if you're using an account with <20 rep (like I am) it gets even worse because then you can't log into chat and PPCG at the same time
over the last few days I've been idling TNB but in a non-JavaScript-supporting browser, by repeatedly refreshing the transcripts; that's much more convenient for me than logging in and joining the channel would be
The only other large channels I'm in are #fedora, which has basically no moderation, and #nethack, which seems to actually has less activity than #hardfought and is mostly a dump for Rodney livelogs.
@AdmBorkBork I concur, imo PPCG's decline started after WB 2017. At least temporarily, I've also lost interest in participating tbf, for reasons ranging from personal ones (first HS year etc.) to those I think the community has: the fact that we cannot do anything about the voting system, a painfully unhelpful Sandbox, decrease in challenge posting rates, silence in chat, regulars leaving etc. It's painful to see it this way so I completely lost incentive.
@ais523 IMO that's not most of the problem, since SEs software hasn't changed much in years and PPCG has been popular for years. I'd rather think it's either that most good challenges have been already made and the rules to make a good challenge becoming way too gigantic for a new user to make one first try & that the sandbox isn't forced.
Challenge
Your task is to encode an integer as a string of ASCII characters, then successfully decode it after said string has been randomly shuffled.
You will write two programs/functions, which will be referred to as Encoder and Decoder.
Encoder
Input: an integer \$n\$ in the range \$[0,2^...
in this particular case, I suspect that what's going on is that people think that the question's scoring criterion is broken, and are voting for the answer that "should" score best (also, it was rather more effort to golf than the better-scoring answer)
@ais523 I don't think that's too surprising. Personally, I would vote for a long answer that imposes arbitrary restrictions on itself that make the problem/solution more interesting (e.g. "vim, but only using normal mode"), but not a 5-byte golflang answer with no explanation.
(in that case both answers are interesting, but the longer one more so)
I don't think it's surprising either, but I think it's making a point I hadn't previously noted
incidentally, I've also realised that most of my answers to old questions go into the late answers queue (given that I've locked my account at 11 rep), which is giving them something of a competitive advantage over other peoples'; this seems like yet another Stack Exchange software exploit, although of course I don't get rep from it
@ais523 if voting should be done strictly by byte-count, why even have voting and not just give automatic points? And as it's automatic points, you need automatic checking, and that requires a list of allowed langs-- you've just made anagol
@ais523 As long as you're here (and not in IRC), it looks like Luxidream just died by eating a frost giant corpse in NH4 and it gor recorded as "a quick snack" (hardfought.org/userdata/L/Luxidream/nethack4/dumplog/…). How does that happen?
@ais523 do you think the strictness in requiring answers to be ranked 100% objectively (or at all) is detrimental to the site? (especially given the efforts at moving away from the traditional SE model, like not accepting answers)
@EriktheOutgolfer I actually think that's one of it's greatest strengths. An answer either works or it doesn't, and if input is inconvenient, it's inconvenient for everyone equally. No more quibbling about IO formats and whatnot
there are some questions (like this one or the Quest for Tetris) where the victory condition is more or less "bolted on", the hard part is writing the program at all
and in fact, in the linked question, the code-golf victory condition arguably made the answers worse/less interesting by encouraging brute force over cleverness
For example, I would have loved to answer this question yesterday. I wrote up an answer, and actually greatly enjoyed gofling it. But the IO was extremely inconvenient so I held off in hopes that it would be loosened later. And now I don't care to answer it since it's old
> And now I don't care to answer it since it's old
That's a big problem with the incentives on PPCG; if you submit an answer to an old question few people see it, so regardless of what your motivation is (fame, reputation, appreciation from others, etc.) it's fairly unsatisfying to see the answer ignored
Given a random coordinate (x,y), determine in which square (squares are referenced by their sidelength) it is (or the borders of which squares).
The squares are drawn in a counter clockwise direction, that is, the first square is drawn in the first quadrant, the one after is to the right, the ...
@dzaima Yeah, but if I knew that I would need to spend a couple of bytes on input parsing, then I wouldn't be quite as annoyed as I am wondering if it will allow something more convenient in the future. And especially right now since if I did post a valid answer, I'd be competing against a bunch of answers that take input in a more convenient format
@DJMcMayhem That's exactly the situation I'm in as well! And to be fair, I go through that all the time, not always due to I/O, but because I get there too late and people already started voting the FGITW into oblivion.
I'd like problems to just say "take two strings and an integer", or whatever, and have a wrapper generator for each language which generates a "take two strings and an integer" wrapper
@ais523 right, that is a thing here sadly, though I don't really see how to fix it, without deleting the "new questions" page (and making APIs impossible to replicate it)
@Mr.Xcoder Exactly. I greatly enjoyed coming up with an invalid 25 byte python answer that I'm really proud of (lambda l:[*{*l}][1:][-1:]), but answer challenges isn't nearly as enjoyable as golfing for the heck of it
@dzaima anagol hides answers on new questions; that would fix this problem, and also gives people an incentive to solve new problems even if other people have solved them (because there are no spoilers, so it's clear you solved them independently); however, this approach has problems of its own
@ais523 that'd 1) not allow ordering the arguments as you like 2) make it hard to have multiple program types (i.e. full program, function, REPL) 3) again, this
I can see a style of site working in which a question goes up, people spend a week or so answering, then there's a "big release" where all the answers are released at once (and people can still submit late answers, but with the recognition that they might not be appreciated as much); you'd have two queues, "new questions", "recently completed questions"
@DJMcMayhem I couldn't have illustrated my thoughts better myself! I enjoy golfing but... Lately, I've solved plenty of challenges but just denied to post the answer because I knew it was not going to get any attention, because one must scroll all the way to the bottom of the page to even see it...
@EriktheOutgolfer one idea I had is that you can only see answers (including the existence of answers) if a) the challenge is post-mortem, or b) you've already submitted a better answer
just because your answer is shorter, doesn't mean that the longer answers don't actually have something you didn't think of and can save you some bytes
Lua, 80 65 Bytes.
s = string c = s.char for i=1,26 do print(s.rep(c(64+i)..c((65+(i%26))),13)) end
With help from Leaky Nun
c=("").char for i=1,26 do print((c(64+i)..c(65+i%26)):rep(13))end
Lua is a pretty inefficent language in regards to handling of strings and such, so this is the best I...
@LeakyNun Hi, Leaky! I really don't have time for it anymore, plus I've lost incentive for golfing in general. My complaints have been expressed above :)
@ais523 2&3) also the input order being locked means even harder to compete between languages (as some might take implicit arguments differently, and some might just be unusable with bad input order), and I feel like competing between languages is fun too (golfing is about fun, right?)
@dzaima I consider "languages being unusable with bad input order" to be a very desirable property; many golfing languages used at PPCG aren't actually good for solving general problems because they're taking advantage of the fact that PPCG lets you freely reorder inputs
so if you want to be able to have a fair competition between languages, you don't want to allow languages to cheat via being able to fob off half the program on the input encoding
@quartata yeah, I got the method swizzling but unfortunately new versions of macOS don't allow DYLD_INSERT_LIBRARIES on signed apps :/ so I either unsign the app and it breaks with updates or I completely disable SIP but not portable :(
@dzaima out of interest, do you find Charcoal easier to write in the expanded form or the compressed form? the compressed form seems more natural to me somehow
Also: does anyone here happen to know how macOS app store/sparkle does updates? Do they do some sort of binary-delta update, is the entire App replaced?
@EriktheOutgolfer here's an SEDE query that finds all the questions and answers by my old account, date-sorted, with the title of the answer and/or of the question to which the answer was given
err, except that the name and SQL don't match each other because I changed the sort order :-D
@EriktheOutgolfer people only downvoted my answers when they were wrong, and I tried to delete incorrect answers (and typically fix them sometime later)
Ascii Table to UTF-8
When I write documentation, comments, etc. I love making ASCII tables. They usually end up looking pretty good, but I always feel that they could look even better - especially since UTF-8/Unicode includes the box drawing characters. However, these characters are very burdens...
Make a program that simulates the basic logic gates.
Input: An all-caps word followed by 2 1 digit binary numbers, separated by spaces, such as "OR 1 0". The gates OR, AND, NOR, NAND, XOR, and XNOR are needed.
Output: What the output of the entered logic gate would be given the two numbers: ei...
Scoring Chinese Hearts
card-games code-golf
Chinese Hearts, also known as Gong Zhu (拱猪, Chase the Pig), is a variance of Hearts game. It is a 4 player card game which aimed to earn higher points. You may read more about it on Wikipedia. This time, we want implement a program (full or function) ...
There are tasks explicitly defined with Unicode. For example, Supreme Sum String
To correctly work with a unicode data, a script should be saved as UTF-16 or UTF-8 with BOM. Even if the script itself does not contain Unicode characters. At least for Powershell it is.
How to calculate the length...
Determine the length of a UTF-8 byte sequence given its first byte. The following table shows which ranges map to each possible length:
Range Length
--------- ------
0x00-0x7F 1
0xC2-0xDF 2
0xE0-0xEF 3
0xF0-0xF4 4
Notes on gaps in the table: 0x80-0xBF are continuation bytes, ...
Developing an application in c# to replace variables across strings.
Need suggestions how to do that very efficiently?
private string MyStrTr(string source, string frm, string to)
{
char[] input = source.ToCharArray();
bool[] replaced = new bool[input.Length];
for (i...
If you have ever had any exposure to Japanese or East Asian culture you will have surely encountered the Amidakuji game:
As Wikipedia explains, it is a type of lottery drawn on paper and used to randomly select a permutation of N items.
For example, it may be used to randomly assign a starti...
Let us define the "multiplicative deltas" of values \$[\; a_0 \cdots a_N \;]\$ as:
$$
[\; a_1 / a_0 \cdots a_{i+1} / a_i \cdots a_N / a_{N-1} \;]
$$
The reverse operation - namely "multiplicative undelta" - returns values such that the above operation results in the given values.
Example
Give...
You are given as input a target string
Starting with an empty string, you add characters to it, until your
new string is same as the target. You have two options to add
characters to a string:
You can append an arbitrary character to your new string, with
cost x
You can clone any substring o...
Challenge
Your task is to encode an integer as a string of ASCII characters, then successfully decode it after said string has been randomly shuffled.
You will write two programs/functions, which will be referred to as Encoder and Decoder.
Encoder
Input: an integer \$n\$ in the range \$[0,2^...
Given a random coordinate (x,y), determine in which square (squares are referenced by their sidelength) it is (or the borders of which squares).
The squares are drawn in a counter clockwise direction, that is, the first square is drawn in the first quadrant, the one after is to the right, the ...
Lua, 80 65 Bytes.
s = string c = s.char for i=1,26 do print(s.rep(c(64+i)..c((65+(i%26))),13)) end
With help from Leaky Nun
c=("").char for i=1,26 do print((c(64+i)..c(65+i%26)):rep(13))end
Lua is a pretty inefficent language in regards to handling of strings and such, so this is the best I...
