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.
Still an issue:
java.lang.RuntimeException: Unable to resolve symbol: log3 in this context, compiling:(null:9:13)
It might be useful to indicate that all possible products are not sorted and there could be duplicates (I know that the example has got duplicates).