In this video, we solve LeetCode 154: Find Minimum in Rotated Sorted Array II with an easy and detailed explanation in C++.
We will understand:
✅ Problem Explanation
✅ Difference Between LeetCode 153 and 154
✅ Handling Duplicate Elements
✅ Brute Force Approach
✅ Optimal Binary Search Solution
✅ Step-by-Step Dry Run
✅ Time & Space Complexity
✅ Important Interview Observations
🔥 Topics Covered:
Arrays
Binary Search
Rotated Sorted Array
Duplicate Elements
Searching Algorithms
Interview Coding Patterns
💡 Problem Idea:
The array is sorted and rotated, but unlike LeetCode 153, this problem may contain duplicate values.
We need to find the minimum element efficiently.
Example:
Input:[2,2,2,0,1]
Output: 0
📌 Approaches Explained:
Linear Search → O(n)
Optimal Binary Search → Average O(log n)
⚠️ Important Note:
Due to duplicates, the worst-case complexity can become: O(n)
💻 Language Used: C++
📌 Problem Link: LeetCode 154 - Find Minimum in Rotated Sorted Array II
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LeetCode 154 - Find Minimum in Rotated Sorted Array II | Binary Search with Duplicates | C++ | NatokHD