Ways to Make a Fair Array | LeetCode 1664 | Prefix Sum + Optimization | DSA Interview Prep

Given an integer array , an index is fair if removing that element makes the sum of elements at even indices equal to the sum of elements at odd indices.
Your task is to count the number of such fair indices.
🔥 In this video, we explain the intuition, brute force, and optimized prefix sum approach and implementation in python to solve the LeetCode problem “Ways to Make a Fair Array” (Problem #1664).

0:00 Introduction
4:00 Brute Force
7:20 Optimized Solution
18:00 Pseudo Code
24:04 Python Implementation

🎯 What you'll learn:
Brute Force vs Optimized thinking
Prefix sum trick to track even/odd indices
How to avoid re-computation while removing elements
Dry run of logic on sample input

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