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The Zigzag Encoder

A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Python
Difficulty
medium
Seniority
mid, senior

Interview Prompt

A custom encoding scheme writes characters in a zigzag pattern across a fixed number of rows, then reads them row by row. Write a function that takes a string and a number of rows, and returns the string after applying the zigzag encoding pattern.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision