Скачать или смотреть 84. Minimum number of Flips | CodeChef Solution Explained | Step-by-Step Approach + Pseudocode

In this video, we solve the CodeChef problem “Minimum number of Flips” (Difficulty: 781). Chef is given an array consisting of only 1 and -1. In one operation, he can flip an element by multiplying it by -1. We need to find the minimum number of flips to make the array sum equal to 0, or output -1 if it’s impossible.

⏱ Timestamps
00:00 Introduction & Problem Statement
01:45 Problem Understanding with Examples
04:10 Approach & Logic Explanation
06:05 Pseudocode
07:30 C++ Code Implementation
10:15 Testing & Conclusion

📌 Topics Covered:
Array sum manipulation
Flipping logic with 1 and -1
Conditions for impossibility (odd sum cases)
Edge cases explained clearly

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