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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.
No.
i see we have different amount of arguments in the parameter, does that mean that the parameter is an array?
I might be dumb, but I didn't find a single helpful tip here when I stuck on optimization. So I'll leave one that's probably a bit too obvious: 248155780267521, for example, is a pretty big damn number, but the digits aren't that great, right? The reverse approach, it seems, should do the trick.
A great kata!
Without spoiling too much, you can define ranges you want to check using the tests. Start with a small one and then adjust it (lower and upper bound) accordingly.
My method works, but its very slow since i'm checking every number. Is there a hint to what numbers i don't need to check?