For challenges that involve the physical layout or physical manipulation of source-code.
8
votes
4answers
712 views
Anagramming Code
Let's try this again.
The object of this contest is to make two pieces of code that are anagrams of each other (the two must contain the same bytes in a different order), and they will do the ...
1
vote
3answers
149 views
Writing Phrases with Code [closed]
This is my first contest, so please tell me what I can do to improve.
The object of this contest is to write program lines in your language of choice that are both valid code and self-descriptive in ...
23
votes
5answers
2k views
Radioactive Quines
A radioactive quine is a quine-like program that has an even number of characters and, when run, outputs itself with exactly half of its characters removed.
The output itself may be a radioactive ...
15
votes
6answers
1k views
Run the Nth characters to get N
Write the shortest program possible such that when you combine the first character and every Nth character after it into a new program, the output is N. This must work for N = 1, 2, ..., 16.
Another ...
25
votes
6answers
2k views
Code that runs the Game of Life on itself
Write two rectangular blocks of code, each w characters wide and h characters tall, that implement Conway's Game of Life when arranged in a grid. (w and h may be any positive integers)
For example, ...
22
votes
23answers
3k views
Program your favorite phrase
Pick a quote or phrase that is exactly 5 words long, such as Programming puzzles and code golf!.
Write a program that, when appended to itself n times, outputs the first n + 1 words of your phrase in ...
34
votes
13answers
5k views
Make a code square with your favorite word
Pick your favorite 6 letter common English word that has no repeated letters, such as wombat.
Write a program in an N×N grid of characters without comments such that each row and column contains all ...
40
votes
18answers
5k views
Write a Rectangular Program that Outputs the Number of Times it was Rotated
The title says it all. Your goal is to write a program that forms a w×h rectangle of characters that can be rotated and re-run to output the number of 90° Counter-Clockwise (CCW) rotations that have ...
6
votes
2answers
653 views
Let us create a sonnet quine!
There are programs that will output its source code to standard output and do nothing else. They also access no external output. This type of program is known as a quine, and is a common code ...
92
votes
39answers
12k views
Write a program that always outputs “2012” - even if it's modified!
This idea is not mine, though I don't know where it originated. I once met it in a programming contest very long ago (1998, if I remember correctly). The task is to write a program in your favorite ...
