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This code errors on this and that, is it really written in them?
code-golf polyglot
Inspired by I'm not the language you're looking for!
Challenge
Choose two different programming languages, and write a program that prints the following line to stdout:
This program errors out in <the current...
Dodos, 26 bytes
dot F
F
F dip
F dip dip
Try it online!
How it works
The function F does all the heavy lifting; it is defined recursively as follows.
F(n) = ( F(|n - 1|), F(||n - 1| - 1|) )
Whenever n > 1, we have |n - 1| = n - 1 < n and ||n - 1| - 1| = |n - 1 - 1| = n - 2 < n, so the f...
When solving a puzzle with an appropriate solution, does the programming language standard boiler-plate source code need to be included:
For example, should I include all of this:
using System;
using System.Linq;
public class Program
{
public static void Main()
{
Console.WriteL...
Shape Identifying Program
string source-layout code-golf
Your task is to build a program that identifies the shape of the input. The shapes to be identified can be any of the following.
Shapes
Square
To be identified as a square, the source must have lines of all equal length, and the sa...
0
I've recently been coming across a bunch of "necromanced" posts that are extremely low quality (by our newer standards). Given that most of these posts are 5 year+ old, I feel like we should re-evaluate the ability to close old posts on the grounds that, well, they're awful. Take for example one ...
A string can be shifted by a number n by getting the byte value c of each character in the string, calculating (c + n) mod 256, and converting the result back to a character.
As an example, shifting "ABC123" by 1 results in "BCD234", shifting by 10 in "KLM;<=", and shifting by 255 in "@AB012".
...South Korea is the world leader in Internet connectivity, having the world's fastest average internet connection speed. About 45 million people or 92.4% of the population are Internet users, demonstrating that the nation has a substantial relationship with their digital space. The country has consistently ranked first worldwide in the UN ICT Development Index since the launch of the index. The government established policies and programs that facilitated the rapid expansion and use of broadband.
== National program ==
South Korea leads in the number of DSL connections per head worldwide. ADSL is...
2
The trumpet is a valved aerophone instrument, usually pitched in B♭. The sound is made when the player vibrates their lips to displace air inside the instrument. That vibration is acquired by setting one's mouth in a specific way, called the embouchure. Different embouchures, with tighter or loos...
Relay Adder
Make a 32-bit adder with relays.
A relay is here a gate with four inputs A, B, C and D, and output if A==B then C else D.
Smallest Gate count * gate depth win
The Challenge
Given 3 inputs:
A positive integer which is the number of variables,
A set of unordered pairs of nonnegative integers, where each pair represents an equality between variables, and
A positive integer which represents the starting variable,
Return a set of nonnegative integers w...
3D Chess
Die-hard supporters of President Trump claim that he is playing “3-dimensional chess” every time he does something that baffles everyone. Now it’s your chance to play 3-dimensional chess!
Rules
There are many variants of 3D chess (see below), but for this challenge I’ve made up my own...
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