Removes the given number of elements from the end of the collection.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
- Xcode 8.0+
The number of elements to remove.
kmust be greater than or equal to zero, and must be less than or equal to the number of elements in the collection.
Complexity: O(1) if the collection conforms to
Random; otherwise, O(k), where k is the number of elements to remove.