Determine feasibility and clean parentheses string

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Question

Determine feasibility and clean parentheses string

PracHub · Accepted Answer

This pair of problems evaluates proficiency with graph algorithms (dependency modeling and cycle detection/topological ordering) and string processing (parentheses balancing and minimal-edit transformations), focusing on algorithmic thinking, data-structure usage, and efficient linear-time solutions.

Quick Overview

Determine feasibility and clean parentheses string