DataDriven
LearnPracticeInterviewDiscussDailyJobs

The Month-by-Month Snapshot

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
L4

Interview Prompt

Given a list of sales records (each a dict with 'employee_id', 'month', 'sales_amount'), return a list of per-employee dicts. Each dict has 'employee_id' plus keys named after each month (as seen in the input) holding the total sales for that month for that employee. Employees are sorted alphabetically by employee_id.

Summary

Every salesperson has a story. The months just tell it sideways.

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

Related

  • All Mock Interviews
  • Practice Mode (untimed)
  • Python Interview Questions
  • Data Engineering Interview Prep Guide
  • Practice Problems
  • Daily Challenge