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DIY: Flatten Nested List Iterator

Understand how to implement a NestedIterator class in Kotlin that flattens nested lists of integers. Learn to design functions to check and retrieve the next element, improving your problem-solving skills for coding interviews.

Problem statement

You will be given a nested list of integers named nestedList. Each element will either be an integer or a list whose elements may also be integers or other lists. Your task will be to implement an iterator to flatten the nested list.

You will have to implement the NestedIterator class. This ...