#includeIn this example, we create a vector of strings named myVector with the values "Hello", "World", and "!". We then call the size function to retrieve the size of the vector and store it in an integer variable named vectorSize. Finally, we output the value of vectorSize to the console. The package library used in this example is the C++ Standard Library, which provides the vector and string classes and associated functions.#include #include using namespace std; int main() { vector myVector = {"Hello", "World", "!"}; int vectorSize = myVector.size(); cout << "The size of myVector is " << vectorSize << endl; return 0; }