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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.
Issue with last Java test case:
input is 992
Says "got 2 but expected 0"
9 + 9 + 2 = 20
2 + 0 = 2
The answer should be 2, unless the instructions are missing something.
Each test case calls the function way more than once - I reduced my code to just System.out.println(s.length()) and it's printing sometimes 20 times for a single test case - each time with a different length for s.