Linked Questions

Given a character, output (to the screen) the entire qwerty keyboard layout (with spaces and newlines) that follows the character. The examples make it clear. Input 1 ...

You have to create a code which prints :) a random number of times from 1 to 255 inclusive. Your output may not contain any whitespace. Your score : The ...

Introduction As ToonAlfrink says: "Me thinks there aren't enough easy questions on here that beginners can attempt!". So the task is very simple. Given a string, output a truthy or falsy value ...

Given two arrays of non-negative integers \$A = [A_1,A_2,\ldots,A_n]\$ and \$R = [R_1,R_2,\ldots,R_n]\$ which are equal in length, return an array which has the element \$A_1\$ repeated \$R_1\$ times, ...

Background Summer is well over in the Northern Hemisphere, and a lot of us miss the sun, the beaches, the waves of the ocean... This challenge aims at cheering them up by reminding them of the sea. ...

Specifications Given a number n, output an ASCII "meme arrow" (greater-than symbol, >) of size ...

A matrix is antisymmetric, or skew-symmetric, if its transpose equals its negative. The transpose of a matrix can be obtained by reflecting its elements across the main diagonal. Examples of ...

We all know the age-old debate - should strings be length-prefixed or should they be null-terminated? Well, you've run into a blob of binary data and apparently whoever made it decided that the best ...

The function TREE(k) gives the length of the longest sequence of trees T1, T2, ... where each vertex is labelled with one of k colours, the tree Ti has at most i vertices, and no tree is a minor of ...

"Fit Numbers" Sam has a "brilliant" idea for compression! Can you help? Here is a rundown of Sam's compression scheme. First take in a base 10 representation of any natural number strictly smaller ...

It is simple. I cannot stand when people use spaces when naming files. It sometimes wrecks console commands and makes the output of ls ugly. The challenge is to write a program (only ascii characters)...

The mission is to implement a cat-like program (copy all STDIN to STDOUT). Rules: You may only use standard libraries Indentation must be either two spaces or a ...

Here is an easy-intermediate challenge for anyone interested! What is that? A thing me and brother do a bit too often is this: One of us has a problem and asks the other to explain how to do certain ...

In this cops-and-robbers challenge, robbers must crack cop answers by finding out which languages the cops used. This is the Cops thread. For the Robbers' challenge, see here Cops, you are to write a ...

In CSS, colours can be specified by a "hex triplet" - a three byte (six digit) hexadecimal number where each byte represents the red, green, or blue components of the colour. For instance, ...