In this video, we solve LeetCode 88 - Merge Sorted Array step by step.
This is a very important problem to understand the Two Pointer Technique and in-place array manipulation.
Problem Overview:
You are given two sorted arrays nums1 and nums2. Your task is to merge nums2 into nums1 in sorted order without using extra space.
What you will learn:
- How to think like a beginner
- Optimal approach using two pointers
- Why we start from the back
- Step-by-step dry run
- Clean and easy C++ code explanation
⏱ Time Complexity: O(m + n)
Space Complexity: O(1)
This question is very important for coding interviews and DSA preparation.
Topics Covered:
- Arrays
- Two Pointer Technique
- In-place algorithms
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