#include <iostream>
#include <conio.h>
#include <math.h>


using namespace std;

class Vector
{
private:
    float Ox1;
    float Oy1;
    float Ox2;
    float Oy2;

public:

    Vector(float new_Ox1, float new_Oy1, float new_Ox2, float new_Oy2)
{
Ox1=new_Ox1;
Oy1=new_Oy1;
Ox2=new_Ox2;
Oy2=new_Oy2;
}

void EnterVector1()
{
    cout<<"Please, enter X"<<endl;
    cin>>Ox1;
    cout<<"Please, enter Y"<<endl;
    cin>>Oy1;
}

void EnterVector2()
{
    cout<<"Please, enter X"<<endl;
    cin>>Ox2;
    cout<<"Please, enter Y"<<endl;
    cin>>Oy2;
}
void ShowVector1()
{
    cout<<"(";
    cout<<Ox1;
    cout<<";";
    cout<<Oy1;
    cout<<")"<<endl;

}
void ShowVector2()
{
    cout<<"(";
    cout<<Ox2;
    cout<<";";
    cout<<Oy2;
    cout<<")"<<endl;

}
void LenghtVector()
{
    double a;

    a=sqrt(pow(Ox1,2)+pow(Oy1,2));
    cout<<"Lenght of the vector="<<a<<endl;
}

void SummaVector()
{
    double a, b;

    a=Ox1+Ox2;
    b=Oy1+Oy2;

    cout<<"SumV";
    cout<<"(";
    cout<<a;
    cout<<";";
    cout<<b;
    cout<<")"<<endl;
}

void ProSVector()
{
    double a, b, c;

    a=Ox1*Ox2;
    b=Oy1*Oy2;
    c= a+b;
    cout<<"ProSV"<<c<<endl;
}
 void ProVVector()
 {
     double a, b;

    a=Ox1*Ox2;
    b=Oy1*Oy2;
    cout<<"ProVV";
    cout<<"(";
    cout<<a;
    cout<<";";
    cout<<b;
    cout<<")"<<endl;
    }


};


int main()
{
    Vector vector (10, 10, 11, 11);



    vector.EnterVector1();
    vector.ShowVector1();
    vector.LenghtVector();
    vector.EnterVector2();
    vector.ShowVector2();
    vector.SummaVector();
    vector.ProSVector();
    vector.ProVVector();

    return 0;
    getch();
}