Rearrange Array Elements by Sign | Leetcode 2149 | Java | Brute-Best Solution Explained
In this video, we solve Leetcode 2149: Rearrange Array Elements by Sign using Java and JavaScript.
We cover three approaches:
✅ Brute Force
✅ Best (Optimal)
This is a great data structures and algorithms problem for learning how to alternate positive and negative integers while maintaining order. Perfect for coding interviews!
🔍 Problem Link: https://leetcode.com/problems/rearran...
📌 What you'll learn:
How to maintain relative order
Efficient 1-pass array solution
Java vs JavaScript syntax comparison
🚀 Code implementation in:
JavaScript (Node.js)
💡 Watch till the end to understand optimal approach!
Timestamps:
00:00 Introduction
00:15 Problem statement
01:48 Understanding problem
04:40 Brute force solution explained
05:58 Pseudo code for brute force solution
10:18 Optimal solution explained
17:45 Optimal solution execution in leetcode
20:17 Wrap up
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