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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.
I'm trying in C version and couldn't pass the random tests.
No idea what I have been doing wrong. It's an one line solution. They should have given pointer to pass the solution to.
... but @mvenmas ... you still haven't solved it in C ...
This comment is hidden because it contains spoiler information about the solution
Well, try C version )
That's why AI teachers are so dumb !
Too easy for those who know the mathematical property...