Main.cc:1:1: error: 'include' does not name a type include ^ Main.cc: In function 'int main()': Main.cc:11:3: error: 'cin' was not declared in this scope ; cin >>r; v=4*1.0/3*m*r*r*r; ^ Main.cc:13:1: error: 'cout' was not declared in this scope cout <