What is RAII, rule of 3, 5. What is smart pointers and coding questions based on string

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RAII is a resource management technique in C++. Rule of 3/5 refers to special member functions. Smart pointers are objects that manage memory automatically.

RAII stands for Resource Acquisition Is Initialization, a C++ programming technique where resource management is tied to object lifetime.
Rule of 3 states that if a class defines a custom destructor, copy constructor, or copy assignment operator, it should define all three.
Rule of 5 extends Rule of 3 to include move constructor and move assignment operator.
Smart pointers like unique_ptr and shared_ptr in C++ manage memory automatically, preventing memory leaks and simplifying memory management.
Coding questions based on strings may involve tasks like string manipulation, searching, or comparison.

What is RAII, rule of 3, 5. What is smart pointers and coding questions based on string

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