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Flatten Nested List Iterator

Explore how to implement a nested iterator that flattens nested lists of integers. Learn to design the constructor, next, and hasNext methods using stack data structures. This lesson helps you understand how to traverse and flatten complex nested lists efficiently, a common coding interview problem pattern.

Statement

You’re given a nested list of integers. Each element is either an integer or a list whose elements may also be integers or other integer lists. Your task is to implement an ...