Programs may assume that input is empty
I believe that the requirement
The program has to ignore the standard input, that is, it should work regardless of what is given as input.
is too strong. There are (mostly esoteric) languages which automatically read all input there is. These languag...
Anonymous
And in particular the second law: the entropy of an isolated system increases over time.
For this challenge,
An "isolated system" will be taken to be a program or function (abbreviated as "program" from now on);
The passing of "time" will correspond to iterated executions of the program's outp...
Introduction
This is a simple challenge. Given an natural number n via any standard method, output a valid snipped of code of the length n.
Challenge
In your language, for example abc, write a program that when given an natural number n, outputs a valid abc snippet of length n.
Test cases
(...
Produce a quine of length n!
Write a program that, given a number n, produces a quine in your language of length n.
Standard loopholes are forbidden.
The quines that are generated must be proper quines.
Remember, this is code-golf, so the code with the smallest number of bytes wins.
code-gol...
Generate me a QFP chip!
QFP is a type of form factor for an electrical component where pins come out the sides of a chip. Here are is a picture of a typical QFP component:
you can see that the general formula is to have 4 sides of equal numbers of pins.
Your challenge is to create a program ...
5
(randomly inspired by this question)
Let's make a drawing from some pipes | and hyphens -. Choosing a subset, if chosen carefully, you can form a rectangular box or block shape (meaning that the corners are formed by |- or -|). For this challenge, we're concerned only with identifying the corner...
Postman's Sorting
You are a postman, and you have to walk down a street, delivering letters. Odd-numbered houses are on the left, and even-numbered houses are on the right.
If you had to end up back at the beginning of the street, it would be easy: simply deliver the odd letters in ascending or...
I saw the following in Jon Skeet Facts:
Jon Skeet can code in Perl and make it look like Java.
That inspired the following challenge:
Create a "Hello, World!" program that compiles and runs in as many programming languages as possible.
Rules:
Post the list of languages with your co...
0
Holey Strings!
For a string to be holey, all of its characters contain a hole. The valid 'hole characters' are:
ABDOPQR
abdegopq
04689
If a string contains anything but these, it is not holey.
The Challenge
Your task is simple: write a function or program with 1 parameter: a string. Return...
Roman Roulette
Background
According to the trusted source of Wikipedia:
According to Josephus, he was trapped in a cave with forty of his companions in July 67 CE. The Romans... asked the group to surrender, but they refused. Josephus suggested a method of collective suicide:[14] they drew ...
