Rotate Image - Leetcode 48 | Matrix Rotation In-Place | C++ DSA

🔓 Welcome to Logic Unlocked!
In this video, we solve Leetcode 48 – Rotate Image, a classic matrix manipulation problem where we rotate a 2D NxN matrix 90 degrees clockwise **in-place** using C++.

🎯 Problem Statement:
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees clockwise.
You must rotate the image in-place, meaning you have to modify the input 2D matrix directly.

📘 What You’ll Learn:
✅ Brute-force approach (using extra matrix)
✅ Why extra space is not allowed in the final solution
✅ Optimal in-place rotation: transpose + reverse each row
✅ Step-by-step dry run and visual explanation
✅ C++ code walkthrough
✅ Time and space complexity analysis

📌 Problem Type: Matrix / Array / In-Place Algorithm
📌 Difficulty: Medium
📌 Commonly asked in interviews at Google, Amazon, Microsoft

🔗 Problem Link: https://leetcode.com/problems/rotate-image/

🎥 This video is part of the *Matrix Questions Playlist* on Logic Unlocked — breaking down logic step-by-step for strong DSA fundamentals.

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