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.
This comment is hidden because it contains spoiler information about the solution
I've found an error in the F# random tests.
Function myValidate defines but doesn't use predicate to follow the algorithm. So it's correct only for even count of digits.