#include 
     
      using namespace std;class subsys1{public:    subsys1(){}    ~subsys1(){}    void operation(){cout<<"subsys1"<
      
       operation();        sb2->operation();    }    void mathod2()    {        sb2->operation();        sb3->operation();    }private:    subsys1 *sb1;    subsys2 *sb2;    subsys3 *sb3;};int main(){    facade *fac=new facade;    fac->mathod1();    fac->mathod2();    delete fac;    system("pause");    return 0;}