C++ quiz. What will be printed when the following code is ex

What will be printed when the following code is executed?

#include <iostream>

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

int main() {
  A *a = (A *) operator new(sizeof *a);
  delete a;
}

~A
The code won't compile
A~A
A
undefined behavior

Explanation

The explicitly called operator new() allocates memory but does not call the constructor.

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