Alloy Production

Problem Overview

• Find the maximum number of alloy units from n metals with fixed per-unit composition, given current stock and a purchase budget.
• Inputs: composition[n], stock[n], cost[n], budget; output: integer max units.
• Supplier has infinite supply; purchases are limited by budget and per‑unit costs; constraints up to n=1e5 and values to 1e9.
• Real-world context: foundry manufacturing; asked in Mathworks interviews and used as a coding interview problem and interview question.