C++ Interview: 200 Questions and Answers

The book "C++ Interview: 200 Questions and Answers" is a practical guide for developers preparing for a technical interview. The author has collected the most frequent and tricky questions asked in interviews at Russian and international IT companies and provided detailed, structured answers.

The book covers all key C++ topics:

• Language Basics — data types, control structures, functions, operator overloading;
• Object-Oriented Programming — classes, inheritance, polymorphism, virtual functions, abstract classes;
• Memory Management — new/delete, smart pointers (unique_ptr, shared_ptr, weak_ptr), RAII, memory leaks;
• Standard Library (STL) — containers (vector, map, unordered_map, set), iterators, algorithms, strings;
• Templates and Metaprogramming — template classes and functions, specialization, SFINAE, variadic templates;
• Multithreading and Synchronization — std::thread, mutexes, condition_variable, atomic operations, deadlock;
• Modern C++ (C++11/14/17/20) — move semantics, lambda expressions, constexpr, structured bindings, concepts.

Who is this book for?

• Junior developers preparing for their first interview;
• Middle developers looking to systematize their knowledge and fill gaps;
• Students and graduates of technical specialties studying C++;
• Anyone who wants to improve their problem-solving skills and answer reasoning.

What will the reader learn?

• How to correctly answer questions about virtual tables and multiple inheritance;
• The difference between std::vector and std::list, and when to use which;
• How smart pointers work and why they are preferred over raw pointers;
• How to avoid common mistakes when working with memory and threads;
• What questions are asked about templates and how to answer them confidently.

Each question is accompanied by a detailed answer with code examples, explanations, and pointers to potential "pitfalls." The book is structured so it can be studied either sequentially or selectively — by topics that cause difficulty.

This is not just a collection of questions, but a full-fledged simulator for interview preparation. The author shares not only technical knowledge but also tips on interview behavior, code formatting, and working with whiteboards. After reading, you will feel more confident and be able to impress an employer.