The Counting Machine

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

Implement a Python class called CountUp that takes a list of integers on initialization. When iterated, it yields each element multiplied by its 1-based position index. Implement __iter__ and __next__.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a sandboxed Docker environment and grades it instantly.