Data Structure & Algorithm

Explore essential concepts and problem-solving techniques in data structures and algorithms. Perfect for building a strong foundation, preparing for coding interviews, and enhancing your logical thinking.

1 article in this category

Valid Parentheses Problem — Explained with Java Optimizations

5 min

Jun 15, 2025

Avinash Maurya

Valid Parentheses Problem — Explained with Java Optimizations

Learn how to solve the "Valid Parentheses" problem using stack-based logic in Java, including both optimal and ultra-optimized approaches. This post explains the core logic, provides multiple Java solutions with time/space complexity, and clears up common confusion around runtime differences like 0ms vs 2ms on LeetCode. Perfect for beginners and interview prep.

#JavaScript#CSS#Next.js+17