Find and Fix C++ Ownership Bugs: Double Free, Shallow Copy, and Object Slicing

Company: Sig

Role: Software Engineer

Category: Software Engineering Fundamentals

Difficulty: medium

Interview Round: Onsite

Quick Answer: This question evaluates a candidate's understanding of C++ object lifetime, copy semantics, and polymorphism. It tests the ability to spot shallow-copy bugs like double free and object slicing, and to reason about the Rule of Three/Five, commonly asked to assess practical memory-management and design skill in software engineering interviews.