#include <iostream> //autor: Julia Mroczkowska 3b2
#include <cmath>
#include <cstdlib>
#include <iomanip>

using namespace std;

int main ()

{
	cout<<"Program sluzy do obliczenia natezenia obwodu za pomoca macierzy metoda Cramera"<<endl;
	cout<<"\t                                                   "<<endl;
	cout<<"\t         I2     ____ rw      +| -  E1              "<<endl;
	cout<<"\t .--------<----|____|---------| |-----------------."<<endl;
	cout<<"\t |                            |                   |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |       I1            _____ R2                   |"<<endl;
	cout<<"\t o--------<-----------|_____|---------------------o"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |                                                |"<<endl;
	cout<<"\t |   R1 ______      E1 + | -     ____ rw     I    |"<<endl;
	cout<<"\t '-----|______|----------| |----|____|------->----'"<<endl;
	cout<<"\t                         |                         "<<endl;
	cout<<"\t                                                   "<<endl;
    cout<<endl;

for (int i; i!=0;)
{
    float W0, W1, W2, a, b, c, d, e, f, g;

     cout<<endl<<endl;

    cout<<"Podaj wartosc SEM zrodla napiecia E1 (w woltach):"<<endl;
    cout<<"E1 = ";
    cin>>d;
    cout<<endl;

    cout<<"Podaj wartosc SEM zrodla napiecia E2 (w woltach):"<<endl;
    cout<<"E2 = ";
    cin>>e;
    cout<<endl;

    cout<<"Podaj wartosc oporu wewnetrznego zrodla (w omach):"<<endl;
    cout<<"rw = ";
    cin>>a;
    cout<<endl;

    cout<<"Podaj wartosc oporu rezystora R1 (w omach):"<<endl;
    cout<<"R1 = ";
    cin>>b;
    cout<<endl;

    cout<<"Podaj wartosc oporu rezystora R2 (w omach):"<<endl;
    cout<<"R2 = ";
    cin>>c;
    cout<<endl;

    W0 =(b+a)*a - c*(b+2*a);
    W1 =(e-d)*a - e*(b+2*a);
    W2 =(b+a)*e - c*(e-d);


        if( W0 != 0 )
        {
            f = W1 / W0;
            g = W2 / W0;
            cout<<"Natezenie oczkowe nr 1 (I1) = "<<setprecision( 2 )<<f<<" A"<<endl;
            cout<<"Natezenie oczkowe nr 2 (I2) = "<<setprecision( 2 )<<g<<" A"<<endl;
        }

        else
        {
            cout << "Mozliwe zwarcie!" << endl;
        }

    cout<<endl<<endl;
    cout<<"Jeszcze raz?"<<endl;
    cout<<"0 - Nie, wyjdz z programu"<<endl;
    cout<<"1 - Tak"<<endl;
    cin>>i;

}

return 0;
}