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.
forgot about key argument
Nice solution! :)
amazing!
Cool!
Awesome
This comment is hidden because it contains spoiler information about the solution
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It is little bit strange that this O(n^2) and another O(n^2) solution are marked as top rated best practices. Just below you can find O(n).