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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 didn't realize that. Thank you for pointing that out.
Hello,
I submitted same solutions three times. I wanted to delete first 2 but I couldn't do it. Is it possible ?
I wanted to use a side effect but I didn't know (forgot) that bool(None) returns False.
Your solution is really elegant. Thank you :)
How did you use "s.add(y) or y". I couldn't understand why it worked. Could you explain ?
/edit.
I understand. None or < variable > , returns the < variable >.