Linked Questions
15 questions linked to/from Ah, why is there a bug in my program?
515
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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 ...
- 196k
234
votes
366
answers
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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 ...
- 210k
144
votes
566
answers
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Shortest infinite loop producing no output
Your task is to create the shortest infinite loop!
The point of this challenge is to create an infinite loop producing no output, unlike its possible duplicate. The reason to this is because the code ...
- 13.1k
145
votes
333
answers
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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 ...
- 2,416
111
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286
answers
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Output with the same length as the code
In this challenge, you should write a program or function which takes no input and prints or returns a string with the same number of bytes as the program itself. There are a few rules:
You may only ...
- 196k
103
votes
298
answers
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Create output twice the length of the code
The Challenge
Write a complete program that writes twice as many bytes to standard output as the length of the program.
Rules
The program must write ASCII characters to the standard output.
The ...
- 3,929
150
votes
160
answers
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I double the source, you double the output!
Your task, if you wish to accept it, is to write a program that outputs a positive integer (higher than 0). The tricky part is that if I duplicate your source code, the output must be double the ...
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57
votes
169
answers
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Output programming language name
Challenge:
In the programming language of your choice, take no input and output your programming language's name.
Fair enough, right?
Restrictions:
You can't use any character that is included in ...
- 3,062
32
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80
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4k
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52
votes
47
answers
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99 bugs in the code
99 bugs in the code
The adaption of "99 bottles of beer on the wall" for computer science where the bugs increase instead of the bottles decreasing is often re-posted around the internet. ...
- 708
33
votes
63
answers
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Integer Lists of Noah
Introduction:
I think we've all heard of it, but here a very brief summary: Noah gathered two of every species of animal on the planet, male and female, to save in his Ark during a great flood. The ...
- 123k
38
votes
53
answers
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(RGS 1/5) Binary multiples [duplicate]
A binary multiple of a positive integer k is a positive integer n such that n is written ...
- 14k
32
votes
51
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How many petals around the rose
How many petals around the rose
How many petals around the rose is a dice game you can play with your friends. Similar to "can I join the music box", there is a person that knows how the ...
- 14k
19
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56
answers
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Find the number of integers in the range from 1 to N that ends with 2
Task
As input you have:
a positive integer N
And you should output:
The number of integers in \$[1,N]\$ (an inclusive range) which end with the digit \$2\$ in ...
23
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36
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Reverse Bit Order of 32-bit Integers
Write the shortest code to reverse the bit order of a 32-bit integer.
Rules:
Input is assumed to be a valid integer or string equivalent if your language doesn't support numerical values (e.g. ...
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