This is great! One small thing I noticed though was GetDivisors has the potential to produce duplicate values.

100 for example returns 1 2 4 5 10 10 20 25 50 with the 10s duplicated,

something like:

if (i != 1 || number / i != i) yield return number / i;

raised as issue above

Great kata, perfect for practicing OOP & TDD

Thanks for the kata, had fun solving this puzzle!

I was struggling to understand why my code times out, and then I removed Console.WriteLine(maze) :))

Great kata, always fun to create interpreters for esoteric languages

Really like this solution, using Func dictionary is cool

Good solution, but better use switches in such situations as compiler will create switch hash lookups which is faster than if statements

Not sure if the author fixed it, but the tests work fine for me now

Funny thing - the tests were timing out for me and I couldn't figure out why as the solution seemed fast enough; but then I switched to C# 7.3 from Mono and got an instant pass without changing anything else! I guess the compiler really matters for some tasks.

The feeling I got after thinking that I suck at math for so many years and finally solving this kata...

In C# the results are reversed.

language?