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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.
java, i was checking input(tests were failing) and then wrote tests in my IDE with same input and they where passing
Maybe i did something wrong but i checked it few times
Random tests doesnt work, atleast in my opinion