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 this one is the best answer
I am so stupid to store the whole strng as a Map....
I did the same thing but I'm having trouble proving its validity. Can someone prove that this will always result in the smallest next number? I mean mathematically justify it.
Nice! This solution also works for if shift is negative.