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

L4

Problem

Implement CountUp(values). Its iterator yields values[i] * (i + 1) for i = 0..len(values)-1. The test harness constructs the object then collects list(iter(obj)) and expects the produced list.

Summary

It knows where it stopped last time.

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