LeetCode 540 🔥 Single Element in Sorted Array | Binary Search Trick Explained

🚀 Problem: Single Element in a Sorted Array (LeetCode 540) In this video, we solve an important Binary Search problem where every element appears twice except one unique element. 💡 Key Concept: - Binary Search on Index - Pair Pattern (Even-Odd Index Trick) - Time Complexity: O(log n) - Space Complexity: O(1) 📌 Approach Explained: We use binary search to find the single element by checking the pattern of pairs: - If mid is even → check mid+1 - If mid is odd → check mid-1 This helps us eliminate half of the array efficiently. 🔥 Perfect for: - DSA Interview Prep - FAANG Preparation - Competitive Programming 👨‍💻 Channel: Code With Rahul Kumawat 👍 Like | Share | Subscribe for more DSA content #leetcode #binarysearch #dsa #codinginterview #faang #programming #rahulkumawat