Write a program calculate square and cube of given number using constractor

// write a program calculate square and cube of given number using constractor
#include<iostream>
using namespace std;
class ac
{
public:
int n;
ac();
~ac();
void sq();
void cb();
};
ac::ac()
{
cout<<"Enter the number : ";
cin>>n;
}
ac::~ac()
{
cout<<""<<endl;
}
void ac::sq()
{
cout<<" The value of square is : "<<n*n;
}
void ac::cb()
{
cout<<" The value of cube is : "<<n*n*n;
}

int main()
{
ac sss;
sss.sq();
cout<<endl;
sss.cb();
//return 0;
}