The Letter Mapper

A medium 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
medium
Seniority
L4

Interview Prompt

Two strings pulled from a character-substituted log are lined up position by position, `s` against `t`. Return whether `s` could become `t` by replacing characters, where every occurrence of a given character is always replaced by the same character.

Summary

A consistent substitution, or not.

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