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.
I got it. Thank you very much!
I got it. Thank you very much!
I got it. Thank you very much!
I got it. Thank you very much!
you could use isinstance func explicitly in same_structure_as func
what does [node] expression mean?
what does [node] expression mean?
This comment is hidden because it contains spoiler information about the solution
what does [node] expression mean?
what does [node,] expression mean?
your code provides list of duplicate permutations.