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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 understand the other solutions but this I cannot grasp.
I saw that it workd but when I think about e.g. case n=2, I assume that going(2) would return 1/3.
Could anyone explain to me what's going on here?