Quick Overview

An integer problem: reduce a positive n to zero with the fewest operations, where each operation adds or subtracts a power of two. It tests reasoning about binary representations, proving a strategy optimal, and working safely with integers larger than 32 bits.

Fewest Add-or-Subtract Power-of-Two Steps to Reduce n to Zero

Company: Salesforce

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Online Assessment

Overview: An integer problem: reduce a positive n to zero with the fewest operations, where each operation adds or subtracts a power of two. It tests reasoning about binary representations, proving a strategy optimal, and working safely with integers larger than 32 bits.

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