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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.
since no constraints for the arguments are given in the statement,
add_binary(!0u64, !0u64)
would cause overflowWhy? I don't think there is anything about it in description. Using language in the way its designed to is also a skill, if author wanted algorithm implemented from scratch they could write that.
That is cheating!