Linked Questions

419
votes
756answers
126k views

“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 ...
508
votes
229answers
112k 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 ...
195
votes
289answers
45k 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 ...
121
votes
269answers
26k 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 ...
223
votes
75answers
74k 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 ...
191
votes
78answers
34k 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 ...
65
votes
203answers
19k 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), ...
75
votes
68answers
19k 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...
146
votes
25answers
18k 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 ...
43
votes
66answers
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. ...
74
votes
37answers
12k views

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-...
54
votes
31answers
23k views

Create a memory leak, without any fork bombs [closed]

Your task is to create a memory leak. This is a program that uses loads of memory, until the computer runs out and has to do some swapping to save itself from running out. The only way that the memory ...
64
votes
36answers
11k views

Enlarge ASCII art

In this challenge, you must take multiline ASCII art as input, such as: ...
55
votes
34answers
7k 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 ...
20
votes
25answers
3k views

Write an interpreter for *

The task is simple. Write an interpreter for the language *. Here's a bigger link to the wiki. There are only three valid * programs: * Prints "Hello World" <...

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