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

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Quick Overview

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.

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

Company: SIG (Susquehanna)

Role: Software Engineer

Category: Software Engineering Fundamentals

Difficulty: medium

Interview Round: Onsite

Overview: 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.

Read the full SIG (Susquehanna) Software Engineer interview experience this question came from

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Jun 15, 2026
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