The Bouncer

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

easy

Seniority

L3

Problem

Implement a permission tracker. The function receives a list of operations, each a 2-element list [op, permission] where op is 'add', 'remove', or 'check'. For each 'check' operation, append True or False (whether the permission is currently granted). Add and remove operations produce no output. Return the list of check results in order.

Summary

Every door has a guest list.

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