The Account Manager

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
L4

Interview Prompt

You're replaying a checking account's transaction log through a `BankAccount` class that opens at `initial_balance`, takes deposits and withdrawals, refuses any withdrawal larger than the current balance, and can undo the latest transaction. Drive it from `bank_account_simulator(initial_balance, ops)`, which applies each op in order and returns the closing balance.

Summary

Deposits, withdrawals, and a ledger you can walk back.

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