Valid Parentheses - LeetCode 20 | Day 7 of My Coding Journey скачать в хорошем качестве

Valid Parentheses - LeetCode 20 | Day 7 of My Coding Journey

🎯 Day 7 of My LeetCode Journey | Valid Parentheses Problem In this video, I solve LeetCode Problem #20 - Valid Parentheses, an easy-level problem that introduces the STACK data structure! This is one of the most classic and frequently asked interview questions. 🔗 Problem Link: https://leetcode.com/problems/valid-p... 📌 PROBLEM DESCRIPTION: Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: 1. Open brackets must be closed by the same type of brackets. 2. Open brackets must be closed in the correct order. 3. Every close bracket has a corresponding open bracket of the same type. Example 1: Input: s = "()" Output: true Example 2: Input: s = "()[]{}" Output: true Example 3: Input: s = "(]" Output: false Example 4: Input: s = "([])" Output: true Example 5: Input: s = "([)]" Output: false 💡 KEY CONCEPTS COVERED: ✅ Stack Data Structure (LIFO - Last In First Out) ✅ Bracket Matching Algorithm ✅ Hash Map for Bracket Pairs ✅ String Traversal ✅ Edge Case Handling 📊 COMPLEXITY: • Time Complexity: O(n) • Space Complexity: O(n) 🎓 DIFFICULTY: Easy 🏷️ TOPICS: Stack, String 🔔 SUBSCRIBE for daily LeetCode solutions and coding challenges! 👍 LIKE if you found this helpful! 💬 COMMENT your approach or questions below! --- 📚 MY LEETCODE JOURNEY PLAYLIST:    • Leetcode   🤝 CONNECT WITH ME: • GitHub: https://github.com/ashwinikemshetty • LinkedIn:   / ashwinikemshetty   --- #LeetCode #CodingInterview #Day7 #ValidParentheses #Programming #LeetCode20 #Stack #DataStructures #EasyProblem #CodingChallenge #TechInterview #SoftwareEngineering #AlgorithmExplained #FAANG #100DaysOfCode