The Enigma machine is a fairly complex cipher machine used by the Germans and others to encrypt their messages. It is your job to implement this machine*. Step 1, Rotation Our enigma machine has 3 slots for rotors, and 5 available rotors for each of these slots. Each rotor has 26 different p...

One way to construct a regular heptadecagon starts with drawing a horizontal line of length 1 from the center to a vertex. Then the distance along that line from the center to the second vertex is cos(2π/17). All other vertices are easy to get. The goal of this challenge is to print (or produce ...

Suppose you have 2 languages, A and B. A string s is a semiquine in A and B if it satisfies the following conditions: s is a quine in language A. s is a polyglot in A and B. The output of running s as a B program is a different string s', which is a quine in B. The goal of this challenge is t...

A Norwegian Birth Number consists of 11 digits, composed the following way: DDMMYYiiikk DD is the day (from 01-31) MM is the month (from 01-12) YY is the year (from 00-99). It's not differentiated between 1900 and 2000 iii is the "individual number" kk are two control digits iii is determin...

A simple challenge for your Monday evening (well, or Tuesday morning in the other half of the world...) You're given as input a nested, potentially ragged array of positive integers: [1, [[2, 3, [[4], 5], 6, [7, 8]], 9, [10, [[[11]]]], 12, 13], 14] Your task is to determine its depth, which i...

Write a square root function that takes an input, positive or negative, and calculate it's square root, correct up to six decimal places (then truncate after the sixth decimal place). But, you cannot use ANY built in power related functions. This means nothing like (but not limited to): Math.pow...