Questions tagged [quine]
A quine is a program which produces its source as output. This tag indicates that the challenge is related to quines.
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Fewest Instructions for Mihály Quine
https://mihaly.barasz.com/compressed-loop/game.html
You have a simple, line-oriented “compression” language. The language works as follows:
The document must start with the ...
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Print my submission entry [duplicate]
Your program should print the following:
**Language, XXX bytes**
```
CODE
```
or its equivalent. XXX should be substituted by ...
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Cell`s Life #1: Simulate a plant cell
What am I?
As a plant cell, your program/function/etc. must undergo photosynthesis:
When the input is 6CO2+6H2O+light in any order, output ...
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Longest irreducible quine
Write an irreducible proper quine, i.e. a program that prints its own source code, which can't be reduced by removing characters to a shorter program with the same constraints.
Eg. the python quine:
<...
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Write a Web server quine
Write a program that accepts HTTP requests on any port of your choice above 1024, and responds to requests on any URL of your choice with its own source code. It must work with, at least, Firefox and ...
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I reverse the source code, you reverse the source code! [duplicate]
Write a program that outputs its source code in reverse when run, and outputs its source forwards when I reverse the source. If your program is "abcd", when run with no arguments it should ...
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Print the answer before a given answer
In this challenge, you'll take an answer as input, and print the answer before it. If the answer passed as input is the first answer, print your own submission's source. You'll be passed any answer in ...
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Write a program that prints a program that's almost quine
Your task is to make a program in L that takes n as an input number, output a program p in <...
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Lexicographically self-comparing code
This is a quine challenge related to Write the shortest self-identifying program (a quine variant)
Write a function or a full program that compares lexicographically its source code and input, that is,...
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Write some Genetic Quines
In this challenge, you'll create some programs which behave similarly to genes. When you run one, it will return one of its two "alleles" (a half of its source code), and concatenating any ...
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Iterative Quine
Create a program which prints itself, followed by an additional program. This additional program should print the first program, itself, and then a third program. This continues until the nth program, ...
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Jelly compression quine
The golfing language Jelly has a very complex and clever string compression system which I'm not going to go into depth about here. You can find a very good explanation here.
Basically, Jelly's string ...
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A quantum quine
Your challenge is to write a program that is a quine, meaning it prints out its own source code.
For at least one individual character, when it is removed from the program's source, a single different ...
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The Roly-Poly, Square-Wheeled Quine
Code-Golf caddy Eddie Brackets was getting tired of quine challenges, which appeared to be much too easy for the grand poobahs. He has this idea to spice up things and is sending quines to the car ...
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I'm a lizard, cut here!
Write an \$n\$-bytes program \$AB\$ such that:
it outputs an integer \$x,\ 0\lt x\lt n\$;
both its \$x\$-byte prefix \$A\$ and \$(n-x)\$-byte suffix \$B\$, when run as programs, output \$AB\$.
\$A, ...
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