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Question #5 Difficulty: 1

According to the C++17 standard, what is the output of this program? 

    #include <iostream>

struct A {
  A() { std::cout << "A"; }
};
struct B {
  B() { std::cout << "B"; }
};

class C {
public:
  C() : a(), b() {}

private:
  B b;
  A a;
};

int main()
{
    C();
}

Hint:

What determines the order of member variable initialization?

Answer:

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