Challenge Inspired by this challenge and the nasty Hurricane Matthew, we will be generating some lightning bolts dynamically. n = 15: \ /\ / \ / / /\ /\ / \ \ / / /\ /\ \ / / \ /\ \ /\ / \ \ /\ / \ \ /\ Input Positive Integer n determines the depth...

For this challenge, the objective is to take a list of integers, and output the sum of every unique integer in that list, i.e. count multiples of the same integer only once. Your input will be a string in the format "{1,2,3,4}" with any amount of elements. The string will never have whitespace or...

Raytracing/Raycasting Here is a 256*256 heightmap. Your challenge is to render it, in minecraft-style blocks, using some form of raytracing. Fundamental Definitions And Clarifications These are all straightforward and fairly obvious but I'm being explicit so that what follows is (ideally) un...

The Wythoff matrix is an infinite matrix consisting of the Grundy numbers of each square on a chessboard in Wythoff's game. Each entry in this matrix is equal to the smallest nonnegative number that does not appear anywhere above, to the left, or diagonally northwest of the position of the entry...

String Similarity String similarity is basically a ratio of how similar one string is to another. This can be calculated in many ways, and there are various algorithms out there for implementing a ratio calculation for string similarity, some being more accurate than others. It's actually very u...

In QBasic, VBA, and possibly other languages, there is an autoformatter that adds spaces and expands some syntactic sugar. For example, if I type this code: ?x*2 QBasic will expand it to PRINT x * 2 Should I count this code as 4 bytes or 11?

Reverse engineer the code cops-and-robbers This first revision of this post is solely to get feedback on the consept. I'll write specific rules, and specs later if it's well received. The challenge is a cops and robbers challenge. Cops: Write a code that takes an input and gives an outpu...

Here is a tic-tac-toe board: a b c | | 1 - | - | - _____|_ _ _|_____ | | 2 - | - | - _____|_____|_____ | | 3 - | - | - | | Given a set of moves, print the board with the tokens on. Input will be take...