1. Why should i learn math while learning coding? Spent a lot of time to understand the task
2. Even with fully understanding what i should to do i spent a lot of time for algorithm realization. Difficulty of the kata equal to 5 IMO

Poor description and wrong difficulty - not fun at all

Try not to cheat and provide a recursive solution

Why ppl upvote this solution?

ToList function implemented in C# sample test should return List< T > instad of List< Node < T >.
Default comparer always return false for two Node< T >, even when data is equal. Spent a lot of time to understand what's wrong

In C# Sample Tests is used "cdecode" class, what is that? I cant find anything about it in google.