[cpp] #include <iostream>
using namespace std;
class Rectangle
{
public:
Rectangle(){x1=0;y1=0;x2=0;y2=0;}
Rectangle(double X1,double Y1,double X2,double Y2):x1(X1),y1(Y1),x2(X2),y2(Y2){}
Rectangle operator +(Rectangle &p)
{
Rectangle P;
P.x1=x1+p.x1;
P.y1=y1+p.y1;
P.x2=x2+p.x2;
P.y2=y2+p.y2;
return P;
}
friend ostream& operator <<(ostream & output,Rectangle & p)
{
output<<(p.x2-p.x1)*(p.y2-p.y1)<<endl;
return output;
}
void input()
{
cin>>x1>>y1>>x2>>y2;
}
void output()
{
cout<<(x2-x1)*(y2-y1)<<endl;
}
private:
double x1,y1,x2,y2;
};
int main()
{
Rectangle p1(1,1,6,3),p2,p3;
p2.input();
p3=p1+p2;
cout<<p3;
return 0;
}
#include <iostream>
using namespace std;
class Rectangle
{
public:
Rectangle(){x1=0;y1=0;x2=0;y2=0;}
Rectangle(double X1,double Y1,double X2,double Y2):x1(X1),y1(Y1),x2(X2),y2(Y2){}
Rectangle operator +(Rectangle &p)
{
Rectangle P;
P.x1=x1+p.x1;
P.y1=y1+p.y1;
P.x2=x2+p.x2;
P.y2=y2+p.y2;
return P;
}
friend ostream& operator <<(ostream & output,Rectangle & p)
{
output<<(p.x2-p.x1)*(p.y2-p.y1)<<endl;
return output;
}
void input()
{
cin>>x1>>y1>>x2>>y2;
}
void output()
{
cout<<(x2-x1)*(y2-y1)<<endl;
}
private:
double x1,y1,x2,y2;
};
int main()
{
Rectangle p1(1,1,6,3),p2,p3;
p2.input();
p3=p1+p2;
cout<<p3;
return 0;
}
