What will be the output?

Question

#include<iostream>using namespace std;class A{int x;public:A(int i) { x = i; }void print() { cout << x; }};class B: virtual public A{public:B():A(10) { }};class C: virtual public A {public:C():A(10) { }};class D: public B, public C {};int main(){ D d; d.print(); return 0;}

Answer 1

compilation error

Answer 2

Yes compilation error. Need to put "virtual" to print() in class A

Answer 3

ANSWER IS 4 SHIT