Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
C# implementation is reporting failed Kata tests backwards on the random tests. This is easy to see if you stick a WriteLine whenever you return true, and the Kata will claim that you've returned true when it expected false - except your WriteLine will show you've never returned true.
The C# version doesn't test if you mutated the list.
Tests should be added to check if the list is mutated.
Issue should be 7 kyu in my opinion.