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.
Task description for C language contains an error in the given example. The length of the array is 23, not 20.
I like your point about matching the letter cases, but the initial problem assumes there will be tests without letters (i.e. Kata.SameCase( 'a', '~') ) for which you should output '-1'.