Main.cc:1:1: error: 'include' does not name a type include ^ Main.cc: In function 'int main()': Main.cc:5:1: error: 'cin' was not declared in this scope cin>>a; ^ Main.cc:7:2: error: 'cout' was not declared in this scope cout<<"Upper Letter"; ^ Main.cc:10:2: error: 'cout' was not declared in this scope cout<<"Lower Letter"; ^ Main.cc:12:2: error: 'cout' was not declared in this scope cout<<"Digital"; ^ Main.cc:14:2: error: 'cout' was not declared in this scope cout<<"other"; ^