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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.
can i solve it with something less efficient than O(n)?
I started with python a month ago. There was a series with 'array series' in the title that was very helpful for me.
And from the same author, a 'special number series', which is slightly more advanced.
I've finished learning the basics of python. Which kyu should I try?