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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.
Nice kata!
Little hint: when you understand how to calculate it without having to find the factorial of two parameters separately, everything will become pretty straightforward
Unexpectedly light kata as for 6 kyu
Nice kata!
I need a small hint.
Is the puzzle logic related to the function name "oneTwoThree"?
Yes, thanks, I got it.
"Substrings will be in decreasing order of their length and when they have the same length sorted in ascending lexicographic order"
In what order should it be sorted?