Calculate Warehouse Efficiency (Probably for Supply Chain related NG positions --Fungible-- :)

Problem Overview

• Compute the maximum total efficiency by selecting one parcel per day to add its volume, with each parcel chosen at most once.
• Each day, the first and last parcels in parcelWeights are shipped and removed until all are dispatched.
• Input: array parcelWeights (1 ≤ n ≤ 2×10^5, values 0–10^9); Output: the maximum achievable efficiency.
• Real-world context: warehouse and supply chain performance measurement.
• Amazon interview question: a coding interview problem commonly asked in Amazon interviews.