Reverse Parentheses | LeetCode 1190 | Stack Solution in C++ | DSA Live Coding | Algo Aura

🚀 *Reverse Parentheses | LeetCode 1190 | Stack Solution in C++* Welcome to @algoaura8055 👋 In this video, I solve the *Reverse Parentheses* problem using a *Stack* in C++ and explain the approach step by step. The key idea is to use the *LIFO property of a stack* to handle nested parentheses and process the innermost parentheses first. 🔹 Problem Approach We maintain: • `stack of strings` → stores the string before entering each nested level • `curr` → stores the characters inside the current parentheses When we encounter: • `(` → save the current string and start a new substring • `)` → reverse the current substring and merge it with the previous string • Normal character → add it to the current substring 🔹 Example Input: `(u(love)i)` Processing: `love → evol` Then: `uevoli → iloveu` Output: `iloveu` 🔹 Complexity ⏱️ Time Complexity: *O(n)* 💾 Space Complexity: *O(n)* 🔹 Core Pattern *Nested Parentheses → Stack* `(` → Push current state `)` → Reverse current state + merge with previous state 🎯 What You'll Learn • How to recognize stack-based problems • How stacks handle nested structures • String manipulation in C++ • Processing nested parentheses • How to approach LeetCode-style DSA problems If you found the explanation useful, *Like 👍, Subscribe 🔔, and follow Algo Aura* for more DSA problem-solving videos. 💻 *Language:* C++ 📌 *Topic:* Stack + Strings 🧩 *Problem:* Reverse Parentheses 🔢 *LeetCode:* 1190 #DSA #LeetCode #CPlusPlus #Stack #DataStructures #Coding #Programming #AlgoAura #LeetCodeSolutions #DSAProblems #CodingInterview