Eroare de compilare: user.cpp:4:14: error: ‘cmmdc’ was not declared in this scope ifstream in (cmmdc.in); ^ user.cpp:5:15: error: ‘cmmdc’ was not declared in this scope ofstream out (cmmdc.out); ^ user.cpp: In function ‘int main()’: user.cpp:9:5: error: ‘cin’ was not declared in this scope cin>>a>>b; ^ user.cpp:16:9: error: ‘cout’ was not declared in this scope cout<<a; ^