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Question #44 Difficulty: 1

According to the C++23 standard, what is the output of this program? 

    #include <iostream>
struct X {
  virtual void f() const { std::cout << "X"; }
};

struct Y : public X {
  void f() const { std::cout << "Y"; }
};

void print(const X &x) { x.f(); }

int main() {
  X arr[1];
  Y y1;
  arr[0] = y1;
  print(y1);
  print(arr[0]);
}

Answer:

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