lr-4

#include <iostream>
using namespace std;
class VT {
private:
    double vt;
public:
    VT(double v) :vt(v) {};
    void show() {
        cout << vt << " BT" << endl;
    }
    double getznach() {
        return vt;
    }
};
class kVT {
private:
    double kvt;
public:
    kVT(double k) :kvt(k) {};
    kVT(VT vt) {
        kvt = vt.getznach() / 1000;
    }
    explicit operator VT() {
        double h = kvt * 1000;
        return VT(h);
    }
    void show() {
        cout << kvt << " кBT" << endl;
    }
};
class mVT {
private:
    double mvt;
public:
    mVT(double k) :mvt(k) {};
    mVT(VT vt) {
        mvt = vt.getznach() * 1000;
    }
    explicit operator VT() {
        double h = mvt / 1000;
        return VT(h);
    }
    void show() {
        cout << mvt << " мBT" << endl;
    }
};
class MVT {
private:
    double Mvt;
public:
    MVT(double k) :Mvt(k) {};
    MVT(VT vt) {
        Mvt = vt.getznach() / 1000000;
    }
    explicit operator VT() {
        double h = Mvt * 1000000;
        return VT(h);
    }
    void show() {
        cout << Mvt << " МBT" << endl;
    }
};
class mkVT {
private:
    double mkvt;
public:
    mkVT(double k) :mkvt(k) {};
    mkVT(VT vt) {
        mkvt = vt.getznach() * 1000000;
    }
    explicit operator VT() {
        double h = mkvt / 1000000;
        return VT(h);
    }
    void show() {
        cout << mkvt << " мкBT" << endl;
    }
};
class GVT {
private:
    double gvt;
public:
    GVT(double k) :gvt(k) {};
    GVT(VT vt) {
        gvt = vt.getznach() / 1000000000;
    }
    explicit operator VT() {
        double h = gvt * 1000000000;
        return VT(h);
    }
    void show() {
        cout << gvt << " ГBT" << endl;
    }
};
int main() {
    kVT kvt(72);
    kvt.show();
    mVT mvt(620000);
    mvt.show();
    MVT Mvt(0.05);
    Mvt.show();
    mkVT mkvt(30000);
    mkvt.show();
    GVT gvt(0.0001);
    gvt.show();
    VT vt = (VT)kvt;
    vt.show();
    vt = (VT)mvt;
    vt.show();
    vt = (VT)Mvt;
    vt.show();
    vt = (VT)mkvt;
    vt.show();
    vt = (VT)gvt;
    vt.show();
    vt = 100000000;
    vt.show();
    kVT kvt_(vt);
    kvt_.show();
    GVT gvt_(vt);
    gvt_.show();
    vt = 0.05;
    mVT mvt_(vt);
    mvt_.show();
    mkVT mkvt_(vt);
    mkvt_.show();
    return 0;
}