LeetCode 367 Step-by-Step Explanation | Valid Perfect Square

🔥 LeetCode 367 - Valid Perfect Square | C++ Solution Explained In this video, I solve LeetCode Problem 367: "Valid Perfect Square" using an efficient binary search approach in C++. The problem asks us to determine whether a given positive integer is a perfect square without using any built-in square root function. We will understand the logic step-by-step and implement an optimized solution. 🧠 Approach Used: We use Binary Search to efficiently find whether there exists a number whose square equals the given number. Instead of checking every possible value, binary search reduces the search space by half in every iteration, making the solution much faster. Example: 16 → True 14 → False ✔️ No built-in sqrt() function used ✔️ Optimized searching technique ✔️ Efficient for large numbers ✅ Time Complexity: O(log n) ✅ Space Complexity: O(1) ⏱️ Timeline: 00:00 Introduction 00:18 Problem Statement 00:45 Understanding Perfect Squares 01:20 Binary Search Logic 02:10 C++ Code Explanation 02:50 Complexity Analysis 03:00 Conclusion 💻 Language: C++ 🎯 Problem Link: https://leetcode.com/problems/valid-perfect-square/ 🌐 Connect With Me: 💼 LinkedIn: https://www.linkedin.com/in/harshitpandya2911/ 🐙 GitHub: https://github.com/harshitpandya-cg/LeetCode-Solutions 🐦 Twitter/X: https://x.com/HarshitP68223 👍 Like, Share & Subscribe for more LeetCode and DSA solutions! #leetcode #leetcode367 #validperfectsquare #cpp #cplusplus #binarysearch #dsa #algorithms #codinginterview #programming #competitiveprogramming #developer #problemSolving #leetcodeeasy