Chapter 15.3, Problem 15.5CP

What will the following program display?

#include <iostream>

#include <memory>

using namespace std;

class First

{

protected:

int a;

public:

First (int x = 1) { a = x: }

virtual void twist() { a *= 2; }

int getVal() { twist(); return a; }

};

class Second : public First

{

private:

int b:

public:

Second(Int y = 5) { b = y: }

virtual void twist() { b *= 10; }

};

int main()

{

shared_ptr<First> objectl = make_shared<First>();

shared_ptr<Second> object2 =make_shared<Second>();

cout << objectl->getVal() << endl:

cout << object2->getVal() << endl:

return 0;

}