// sp phu'c

#include

#include

#include

class SP

{

int pt,pa;

public:

void nhap();

void in();

SP nhan(SP);

void chia(SP);

SP cong(SP);

SP tru(SP);

float tinh();

};

void SP::nhap()

{

cout>pt;

cout>pa;

}

void SP::in()

{

cout

";

}

SP SP::nhan(SP a)

{ SP kq;

kq.pt=pt*a.pt;

kq.pa=pa*a.pa;

return(kq);

}

SP SP::cong(SP a)

{ SP kq;

kq.pt=pt+a.pt;

kq.pa=pa+a.pa;

return(kq);

}

SP SP::tru(SP a)

{ SP kq;

kq.pt=pt-a.pt;

kq.pa=pa-a.pa;

return(kq);

}

void SP::chia(SP a)

{ float x,y;

cout

";

}

float SP::tinh()

{ return(sqrt(pt*pt+pa*pa)); }

void main()

{

SP a,b;

a.nhap() ; cout

'; b.nhap();

a.cong(b).in();

a.tru(b).in();

a.nhan(b).in();

a.chia(b);

cout

'

getch();

}