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status-completed I've just converted posts in the Challenges category over to a new Challenge post type that awards more reputation per upvote, starting now. Retroactive reputation changes are bei...
Get ready for a comparatively dry question - this is intended to be one of the "the"s of the code-golfing dictionary. Create a program which inputs a base 10 non-negative whole number (without lea...
This sounds like a great idea to me. To summarize how we can move forward on this: For the Codidact Team Create a new meta tag (defaults? name pending) that is one of the options for the requir...
Python 2, 76 bytes i=27 while~i:print' '*i+' '.join(`min(i,j,27-i-j)`for j in range(28-i));i-=1 Try it online! Computes the digit in row i from the bottom, position j as min(i,j,27-i-j). F...
As we have set up communities here on the Codidact network we've been appointing temporary moderators. Ultimately, of course, we want each community to choose its own moderators; we've been doing ...
The Sandbox is intended to be a place for feedback, right? If I lost rep because my sandboxed idea wasn't good, I'd be pretty angry about that. Don't have the Sandbox modify reputation; instead us...
Challenge Cause the currently running program to receive the SIGSEGV signal (on Linux or other *nix systems) as fast as possible. What it does with the signal doesn't matter as long as it receives...
Ahead, 3 bytes SW@ S Slurp entire input to stack W Write entire stack @ End Try it online!
As we start on building a new community here together, we're bound to find some sticking points. Those might be bugs, new features you need, things you need support with... whatever they are, the C...
PHP, 13 bytes Hello, World! PHP by default prints all source to output until it encounters <? or <?php.
Over on codegolf.stackexchange.com, we have numerous meta posts outlining loopholes answers can't break, validity of output/input methods and other rule-type posts. Some examples: https://cod...
Japt, 11 10 bytes >0©ÒßUÉ/°T Try it >0©ÒßUÉ/°T :Implicit input of integer U >0 :Greater than 0? © :Logical AND with Ò :Negate the bitwise ...
C (gcc), 113 Bytes i;main(){while(i++<100){char*h[]={"%d "," "},**p=h;i%3||(*p++="Fizz%2$s");i%5||(*p="Buzz ");printf(*h,i,h[1]);}} This compiles with several warnings, but no errors. Here'...
The profile link is only relevant for claiming imported content at the moment. When we import content from SE, linking profiles allows us to give users the option of claiming their posts - thus lic...
Given a non-ragged array (an array where all sub-arrays at a particular level have the same length) of non-negative integers, answer its shape, that is, the length along every dimension. You may as...
JavaScript, 25 24 bytes -1 byte thanks to @Arnauld f=([a,...b])=>a?f(b)+a:b Try it online!
Cat Quines Quines that simply output the source code due to some sort of implicit I/O, such as 1 in many languages.
In languages without STDIN (eg ///) programs may input through insertion into the source code Also applies to cellular automata, in which the most natural way of taking input is specifying some sp...
Language + libraries count as a separate language In the header of your entry, you should have something like this: C (clang) + <libraries>, <byte count> You do not need to inclu...
Regexes may output via the list of matched strings (capture group 0)
Multiple URL shorteners in a web-based challenge In challenges which require fetching data from the Internet, URL shorteners can be problematic. This is because: shorteners made after the cha...
It's the opposite of code golf. Code bowling is essentially a challenge where you try to write the longest code possible, as opposed to the shortest code. Now, this format comes with many issues, ...
About King of the Hill King of the Hill (KoTH) is a relatively straightforward concept: Entrants create bots; bots compete against each other. Making a KoTH challenge The exact details of the co...
C (gcc), 34 bytes f(char*s){*s&&f(s+1)^putchar(*s);} Try it online! Alternative: C (gcc), 35 bytes f(s){read(0,&s,1)&&f()^putchar(s);} Try it online! Alternative ...
A rewrite of this SE question with a simpler input format and guidelines. Challenge Deadfish uses a single accumulator, on which all commands are to be performed. It has the following commands: ...
