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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.
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"Each unique letter may only be assigned to one unique digit"
Just to clarify, a number can be assigned to multiple letters, right? For example, can A and B can both have the value 5?
Is brute force the intended solution for this problem, or is there some clever trick needed to solve this?
Oh, I must have misread the problem. Thanks!
Can there be some information about diplomatic authorizations? From what I can gather from the test cases, a diplomatic authorization is just a sort of "replacement" for an access permit. Is this true? If so, please consider making it explicit in the problem statement.
Hey another question- are we allowed to just do nothing for an interval?
Something like ['NEESS', '', NE]
Is it guaranteed that you won't visit the same place twice for the optimal solution?