Eroare de compilare: main.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("bignumber.in"); ^ main.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type ofstream cout("bignumber.out"); ^ main.cpp: In function 'int main()': main.cpp:14:2: error: reference to 'cin' is ambiguous cin >> n >> operation; ^~~ main.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("bignumber.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:17:3: error: reference to 'cin' is ambiguous cin >> ch; ^~~ main.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("bignumber.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:33:3: error: reference to 'cout' is ambiguous cout << v[i]; ^~~~ main.cpp:6:10: note: candidates are: <typeprefixerror>cout ofstream cout("bignumber.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1