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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.
Go-lang tests aren't checking chars between 91 and 96 so some solutions based on chars comparsion will work even if []^_` given.
Won't work correctly with chars from 91 to 96([]^_`)
I had Timeout with this kind of solution, lol
Golang version: function name should be changed from firstNonRepeating to FirstNonRepeating.