LeetCode 2161 - Partition Array According to Given Pivot | Stable Partition | C++ Solution

In this video, we solve LeetCode 2161: Partition Array According to Given Pivot with a clear and beginner-friendly explanation in C++. We will understand: ✅ Problem Explanation ✅ Partitioning Logic ✅ Maintaining Relative Order ✅ Brute Force Approach ✅ Optimal Simulation Solution ✅ Step-by-Step Dry Run ✅ Time & Space Complexity ✅ Interview Tips and Common Mistakes 🔥 Topics Covered: Arrays Partitioning Simulation Two Pointers Stable Rearrangement Interview Coding Patterns 💡 Problem Idea: Given an array nums and a pivot value: Place all elements smaller than pivot first Then place all elements equal to pivot Then place all elements greater than pivot While maintaining the relative order of elements in each group. Example: Input: nums = [9,12,5,10,14,3,10], pivot = 10 Output: [9,5,3,10,10,12,14] 📌 Approaches Explained: Brute Force Partitioning Three-Array / Stable Partition Approach Optimized Simulation Solution 💻 Language Used: C++ 📌 Problem Link: LeetCode 2161 - Partition Array According to Given Pivot #leetcode #cpp #arrays #partitioning #twopointers #simulation #dsa #codinginterview #competitiveprogramming #leetcodemedium #programming #interviewpreparation #cplusplustutorial #leetcode2161 #algorithms #datastructures