The Page Turner

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

mid, senior

Problem

Build a class that takes a list of pages, where each page is itself a list of items, and lazily produces one item at a time across all pages in sequence. The class must implement the standard Python iterator protocol so it works in any for loop or next() call.

Practice This Problem

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