LeetCode 1523 Explained in 5 Minutes | O(1) C++ Solution 🚀

🔥 LeetCode 1523 Explained in the EASIEST Way Possible! In this video, you'll learn how to solve **Count Odd Numbers in an Interval Range** using an **O(1) Optimal Approach** in C++. 🚀 What You’ll Learn: ✅ Brute Force vs Optimal Approach ✅ Mathematical Logic Behind the Formula ✅ O(1) Time Complexity Trick ✅ Beginner Friendly Dry Run ✅ Interview Ready Explanation ✅ Clean and Optimized C++ Code 💡 Problem: Given two integers `low` and `high`, count how many odd numbers exist between them. 🔥 Formula Used: (high + 1) / 2 - low / 2 ⏱️ Timestamps: 00:00 Intro 01:05 Problem Understanding 01:51 Example 02:23 Brute Force Idea 02:55 Optimal Mathematical Approach 03:35 Formula Explanation 03:55 Visual Representations 04:29 C++ Code Solution 05:50 Dry Run Example 07:30 Time Complexity & Space Complexity 07:46 Interview Tips 08:24 Final Summary 08:40 Outro 💻 Language Used: C++ 🎯 Perfect For: ✔ Beginners Learning DSA ✔ LeetCode Preparation ✔ Coding Interviews ✔ Placement Preparation ✔ Competitive Programming 📌 LeetCode Problem: Count Odd Numbers in an Interval Range (LeetCode 1523) 🔥 If this video helped you: 👍 Like the video 💬 Comment your doubts 🔔 Subscribe for Daily LeetCode Solutions #leetcode #cpp #dsa #coding #programming #leetcode1523 #interviewpreparation #competitiveprogramming #datastructures #algorithms #cplusplustutorial #placements