1352. Product of the Last K Numbers

Design an algorithm that accepts a stream of integers and retrieves the product of the last k integers of the stream. Implement the ProductOfNumbers class: - ProductOfNumbers() Initializes the object with an empty stream. - void add(int num) Appends the integer num to the stream. - int getProduct(int k) Returns the product of the last k numbers in the current list. You can assume that always t