The Silent Locator

An easy Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
Python
Difficulty
easy
Seniority
L3

Interview Prompt

A read cache keeps record IDs in ascending order, but a maintenance job rotated the sequence at an unknown point, moving a block from the front to the back. Given this rotated `arr` of IDs and a `target`, return where `target` sits in `arr`.

Summary

Every lookup should cost you less than the one before it.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your Python against test cases
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision