Explain each line in main (you can put it in the comments) and explain why the output looks how it looks. #include using namespace std; class A { public: A() { n=0; } A(int x) { n=x; } void f() { n++; } void g() { f(); n=n*2; f(); } int k() { return n; } void p() { cout<
Explain each line in main (you can put it in the comments) and explain why the output looks how it looks.
#include <iostream>
using namespace std;
class A
{
public:
A()
{
n=0;
}
A(int x)
{
n=x;
}
void f()
{
n++;
}
void g()
{
f();
n=n*2;
f();
}
int k()
{
return n;
}
void p()
{
cout<<n<<endl;
}
private:
int n;
};
void main()
{
A a;
A b(2);
A c=b;
A d=A(3);
a.f();
b.g();
c.f();
d.g();
d.p();
A e(a.k() + b.k() + c.k() + d.k());
e.p();
}
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