Check balanced parentheses with multiple bracket types

Q: Check balanced parentheses with multiple bracket types

This is a Coding & Algorithms interview question from Snowflake for Software Engineer roles. View the full question and solution on PracHub.

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Question

Given a string containing only parentheses '()', determine whether it is balanced. Follow-up: extend the solution to also support '[]' and '{}' with correct nesting and ordering. Describe the algorithm, the data structures you would use (e.g., a stack), time and space complexity, and how you would handle edge cases such as empty strings or unexpected characters.

Check balanced parentheses with multiple bracket types

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