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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.
first draft, no refactor, yes it's ugly :D
Try to run it in your IDE and repost it please.
"fixture.kt:11:22: error: unresolved reference: findSmallestInt
assertEquals(sif.findSmallestInt(nums), nums.min()!!)
"
The filter part wasn't clear (for me), you should have made a test case for that I had to rewrite it since my filter wasn't working when submitting
on your test cases to validate you call .subtract function and not .subStract (with S but s) it took me some minutes to understand LOL