Loading collection data...
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.
The random tests expect integer
Numbers, not rationals.Note that JS uses IEEE 7something numbers internally, which can be approximations. Make sure to keep your intermediate results integers, or you will run into these problems.
indexOfis a loop-alike method, it's inside a loop, so your code is O(n2) Try another algorithm, a faster one.