Single Number (LeetCode) | Find Unique Element | DSA in Java

In this video, we solve the popular Single Number problem from LeetCode using an optimized Bit Manipulation approach in Java. 👉 Problem: Given a non-empty array of integers nums, every element appears twice except for one. We need to find that single unique element efficiently. 🚀 What you’ll learn: Bit Manipulation concept (very important for interviews) XOR trick to find unique element Optimized approach in O(n) time Step-by-step dry run with example Clean and simple Java code 📌 Example: Input: nums = [4,1,2,1,2,4,7] Output: 7 💻 Code Language: Java 🔥 Topics Covered: Bitwise XOR Time Complexity O(n) Space Optimization Interview Tricks 🎯 Why watch this video? Agar tum DSA, Coding Interview ya LeetCode preparation kar rahe ho, to ye question must-know hai. 📢 Follow for more: Code With Rahul Kumawat Daily DSA | LeetCode | Java 🔖 Hashtags: #DSA #LeetCode #Java #BitManipulation #CodingInterview #RahulKumawat #SingleNumber