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.
Had the same kind of issue in C++. I tried 'if(array1.size() == 0 && array2.size() != 0) return false;' passed (though not compliant with instructions, cf issue)...
I had the same problem. Consider whether you're testing for something in your code that isn't explicitly mentioned in the description. Also remember your semicolons!