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.
because I'm not familar with the Postgre SQL syntax
same code as mine :)
Very Clear
Next time I will try before asking
OKOK
Why don't you try by yourself?
This comment is hidden because it contains spoiler information about the solution
Got it, Thanks!
Value is set to -infinity if filter is empty.
hey, what does the 'default=float("-inf")' mean here ?
This is what I learned from my high school math class.
awesome!
this dict has aleady existed