Linked Questions
23 questions linked to/from Shortest infinite loop producing no output
515
votes
969
answers
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"Hello, World!"
So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with hello-world, and counting). While this is not the most ...
550
votes
241
answers
134k
views
Showcase of Languages
Notes
This thread is open and unlocked only because the community decided to make an exception. Please do not use this question as evidence that you can ask similar questions here. Please do not ...
234
votes
366
answers
65k
views
Is this number a prime?
Believe it or not, we do not yet have a code golf challenge for a simple primality test. While it may not be the most interesting challenge, particularly for "usual" languages, it can be nontrivial in ...
172
votes
488
answers
35k
views
Implement a Truth-Machine
A truth-machine (credits goes to this guy for coming up with it) is a very simple program designed to demonstrate the I/O and control flow of a language. Here's what a truth-machine does:
Gets a ...
145
votes
333
answers
31k
views
Shortest code to produce infinite output
Write the shortest code you can that produces an infinite output.
That's all. You code will only be disqualified if it stops producing output at some point. As always in code golf, the shortest code ...
251
votes
82
answers
82k
views
Code that will only execute once
Goal
The goal of this challenge is to write code that will execute once and only once. This means basically that it damages the program, script, or environment in some way. If rebooting the system ...
219
votes
89
answers
39k
views
Make your language unusable
Try to write some code in your language and make it not satisfying our criteria of being a programming language any more.
A language satisfies our criteria (simplified version for this challenge) of ...
78
votes
261
answers
25k
views
Is this even or odd?
Note: There is not been a vanilla parity test challenge yet (There is a C/C++ one but that disallows the ability to use languages other than C/C++, and other non-vanilla ones are mostly closed too), ...
54
votes
198
answers
14k
views
Scream very loudly
Write a script that outputs A to stdout infinitely.
There should be no newlines or separators between the characters.
Standard loopholes apply.
This is code-golf. ...
77
votes
68
answers
23k
views
Shortest program that throws StackOverflow Error [closed]
Write a program that throws a StackOverflow Error or the equivalent in the language used. For example, in java, the program should throw java.lang.StackOverflowError...
154
votes
28
answers
20k
views
Shortest Code to Legitimately Slack Off
I'm a developer, and I don't feel like doing my work. I know from XKCD that the best excuse for slacking off is that your code's compiling. Because of this, I think I need some code that will compile ...
51
votes
71
answers
10k
views
Shortest program that continuously allocates memory
Write a program which runs forever and allocates more and more memory on the heap the longer it runs, at least until you reach the limit of the operating system on the amount of memory that can be ...
82
votes
41
answers
12k
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Non-discriminating Programming
We say a string is non-discriminating if each of the string's characters appears the same number of times and at least twice.
Examples
"aa!1 1 !a !1" is non-...
46
votes
71
answers
5k
views
Blinking twelve
Many electronic devices, specially old ones, will show a blinking 12:00 when the time has not been set. The purpose of this challenge is to recreate this.
...
70
votes
43
answers
11k
views
Tips for golfing in Bash
What general tips do you have for golfing in Bash? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Bash (e.g. "remove comments" is not ...