Longest Valid Parentheses | LeetCode 32 (Hard)

Longest Valid Parentheses gets a clear, interview-focused walkthrough so you can recognize the pattern and solve it confidently. In this Destination FAANG lesson, you’ll learn finding the longest well-formed parentheses substring and see why stack-based reasoning for matching and measuring valid ranges matters for technical interviews. The explanation is built for DSA and LeetCode practice, with emphasis on clean problem solving, pattern recognition, and FAANG/MAANG-style interview preparation. Subscribe to Destination FAANG and practice the pattern after watching. #LeetCode #Stack #String #CodingInterview #FAANG