#include <iostream>


using namespace std;
class macierz;
class wektor {
    float array1D[3];
public:
    wektor(){
        for (int i = 0; i < 3 ; ++i) {
            array1D[i]=0;
        }
    }
    wektor(wektor &v)
    {
        for (int i = 0; i < 3 ; ++i)
        {
            array1D[i]=v.array1D[i];
        }
    }
    wektor(float v[])
    {
        for (int i = 0; i < 3 ; ++i)
        {
            array1D[i]=v[i];
        }
    }
    friend wektor mnozenie_vxv(wektor &, wektor &);
    friend wektor dodaj_wektory(wektor &, wektor &);

    void wyswietl(char T)
    {
        cout << "Elementy wektora " << T << ":" <<endl;
        cout <<"[";
        for (int i = 0; i <3 ; ++i) {
            cout << " " << array1D[i];
        }
        cout << " \n";
    }
};

class macierz{
    float arr2d[3][3];
public:
    macierz(){
        for (int i = 0; i < 3; ++i) {
            for (int j = 0; j < 3; ++j) {
                arr2d[i][j]=0;
            }

        }

    }
    macierz(macierz &m){
        for (int i = 0; i < 3 ; ++i) {
            for (int j = 0; j < 3; ++j) {
                arr2d[i][j]=m.arr2d[i][j];

            }
        }
    }
    macierz(float arr[3][3])
    {
        for (int i = 0; i < 3 ; ++i) {
            for (int j = 0; j < 3; ++j) {
                arr2d[i][j]=arr[i][j];
            }
        }
    }


    void wyswietl(char T)
    {
        cout << "Elementy macierzy " << T << ":" <<endl;
        cout <<"[";
        for (int i = 0; i <3 ; ++i) {
            for (int j = 0; j < 3 ; ++j) {
                cout << " " << arr2d[i][j];
            }
            cout << " \n";
        }
        cout << " \n";
    }
    friend wektor macierz::mnozenie_mxv(wektor &,macierz &);
};
wektor wektor::mnozenie_vxv(wektor &v1, wektor &v2);

int main() {
    float M[3][3]={{1,1,1},{1,1,1},{1,1,1}};
    macierz m(M);
    float V[]={0,1,2},W[]={1,2,3};
    wektor v(V);



    return 0;
}

wektor mnozenie_vxv(wektor &v1,wektor &v2)
{
    wektor v;
    for (int i = 0; i < 3; ++i) {
        v.array1D[i]=0.0;

    }
    for (int j = 0; j < 3 ; ++j) {
        v.array1D[j]=v2.array1D[j]*v1.array1D[j];

    }
    return v;

}

wektor dodaj_wektory(wektor &v1,wektor &v2)
{
    wektor v;
    for (int i = 0; i < 3 ; ++i) {
        v.array1D[i]=v1.array1D[i]+v2.array1D[i];
    }
    return v;
}
wektor mnozenie_mxv(wektor &v1,macierz &m1)
{
    wektor v;
    float temp1=0,temp2=0;
    for (int i = 0; i < 3; ++i) {
        for (int j = 0; j < 3; ++j) {
            v.array1D[i]+=m1.arr2d[i][j]*v1.array1D[i];
        }

    }
    return v;
}