C/C++

Could you explain what a generalized table expression is and in what situations it is used?

At what point does using the throw operator inside a destructor become unacceptable?

Can you explain what it means to create an instance using the template method?

Is it possible to specify data type conversion directly in the code, and what are its features?

What is the difference between static_cast and dynamic_cast in C++, and when should they be used?

What database management systems have you used in your projects?

What is the purpose of the constexpr keyword in C++ and how is it used?

Could you explain what is meant by the process of data migration or database structure transfer?

What is the difference between using std::map and std::unordered_map in C++, and what are their main differences?

Can you explain what a nested query in SQL is and how it is used?

What is the role and purpose of the 'const' keyword in programming languages?

What is std::weak_ptr and what problem does it help solve in memory management?

Can you explain what triggers are in databases and how they work?

Have you used the constexpr keyword in your projects to define compile-time constants?

How is the storage of elements inside std::unordered_map implemented when collisions occur?

What types of type casting do you know and have used in your practice?

Can you explain what an lvalue is in the context of programming languages?

Junior — Middle

СБЕР АвтоГК Адепт

Have you had experience with type casting in C style?

What is the time complexity of searching for an element by key in std::unordered_map?

In which cases is it recommended to use static_cast in C++?