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.
I have the same problem, as you.
Mark your post as having spoiler content next time, please.
Bug in tests is possible, but not very probable. My C solution, and many other C solutions I try, pass tests without problems. In majority of cases when users blame tests, problems are actually in their solution. If you post your solution here, we can help you find your mistake.