Name:Unknown
Clan:Unknown
Member Since:Jul 2017
Last Seen:Feb 2023
Profiles:
Following:0
Followers:0
Allies:0
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 think your solution is way less efective, and in this top rated solution is problem with creating String s (it's redundant) we should just return new string from substring and that is it. Clear effictient and without redundancy :).
This comment is hidden because it contains spoiler information about the solution
What concatenation? This solution uses basic arithmetic. Simple and performant.