The Paired Doors

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

Domain

Python

Difficulty

easy

Seniority

L3

Problem

A linter for our query templates rejects expressions whose grouping symbols don't line up. Given a string `s` drawn only from the characters '()[]{}', return `True` when each closing bracket matches the most recently opened bracket of the same kind and nothing is left open, and `False` otherwise. An empty string counts as balanced.

Summary

Every door you open is a promise to close it, in order.

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