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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.
I failed "random tests" and "more tests" with "nosuchelement exception"(i use Collections and Map). I have no idea what's wrong, because i checked this code in IDE in interval 1 to 2 billions and it works fine. What could happen?
Same for Java, without .round() it cant calculate correctly