This is a verified interview question from Salesforce. Candidates reporting seeing this problem in recent Online Assessments (OAs) and onsite rounds. Mastering "Minimum Number of Operations to Reduce n to 0" covers key patterns like DP.
"8th Dec Salesforce is designing an energy-efficient data processing system for its servers. Given a positive integer n, which represents the initial energy level of a server, the system can adjust the energy level in a single operation using one of the following actions: 1. Increase the energy level by 2^i for any i >= 0 2. Decrease the energy level by 2^i for any i >= 0 The goal is to determine the minimum number of operations required to reduce the energy level n to 0, ensuring the system is efficiently shut down."
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