Minimum Operations to Make Arrays Equal

Problem Overview

• Find the minimum operations to make array source equal to target by adding 1 to any prefix or suffix per move; return -1 if impossible.
• Input: int arrays source and target; Output: int minimum operations.
• Constraints: n up to 1e5; elements in [-1e13, 1e13].
• Real-world context: array transformation and optimization problem common in coding interview prep.
• From Mathworks interviews; a practical interview question.