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 can suspect that is the problem with implicit conversion
daysIn(12,true)always gets 31, whiledaysIn("12",true)gets -1, as it's invalid inputPS. I did change that test case though, since it's not really providing any value to solvers
Your code passes when I run it, I am not sure why you are getting errors..
Thank you for your feedback, going to look more into it, and learn more about guidelines.
B is 'straight flush', combining straight with flush (it's the second strongest hand on paper, after royal flush)