Eroare de compilare: main.cpp:31:14: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("adunare.in"); ofstream cout("adunare.out"); ^ main.cpp:31:43: error: variable 'std::ofstream cout' has initializer but incomplete type ifstream cin("adunare.in"); ofstream cout("adunare.out"); ^ main.cpp: In function 'int main()': main.cpp:45:12: error: reference to 'cin' is ambiguous int a, b; cin >> a >> b; ^~~ main.cpp:31:11: note: candidates are: <typeprefixerror>cin ifstream cin("adunare.in"); ofstream cout("adunare.out"); ^~~ In file included from main.cpp:23:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:46:2: error: reference to 'cout' is ambiguous cout << a + b; ^~~~ main.cpp:31:39: note: candidates are: <typeprefixerror>cout ifstream cin("adunare.in"); ofstream cout("adunare.out"); ^~~~ In file included from main.cpp:23:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1