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Question #160 Difficulty:
According to the C++17 standard, what is the output of this program?
#include <iostream>
struct A {
virtual void foo (int a = 1) {
std::cout << "A" << a;
}
};
struct B : A {
virtual void foo (int a = 2) {
std::cout << "B" << a;
}
};
int main () {
A *b = new B;
b->foo();
}
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