Which operator is used to allocate memory dynamically in C++?mallocallocnewcreate

The operator used to allocate memory dynamically in C++ is new.

Explanation:

In C++, dynamic memory allocation allows programmers to request memory during runtime, which is particularly useful for handling data of unknown size at compile time. The new operator is fundamental in this aspect, as it not only allocates memory for an object or array but also calls the constructor of the object, if applicable. For example, you can use new to create a single instance of a class with:

MyClass* obj = new MyClass();

For arrays, you would use:

MyClass* arr = new MyClass[size];

Additional operators like malloc are available in C and C++, but they do not invoke constructors and are less commonly used in C++. The delete operator is then used to free the memory allocated with new, ensuring there are no memory leaks.

In summary, the correct answer to the question is new.