Eroare de compilare: user.cpp:7:14: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin ("aparitii.in"); ^ user.cpp:8:15: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout ("aparitii.out"); ^ user.cpp: In function ‘void sum(std::string)’: user.cpp:12:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 32; i >= 32 - num.size() + 1; i--) ^ user.cpp: In function ‘int main()’: user.cpp:33:2: error: reference to ‘cin’ is ambiguous cin >> n >> k; ^ user.cpp:7:10: note: candidates are: <typeprefixerror>cin ifstream cin ("aparitii.in"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:36:3: error: reference to ‘cin’ is ambiguous cin >> v[i]; ^ user.cpp:7:10: note: candidates are: <typeprefixerror>cin ifstream cin ("aparitii.in"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:50:2: error: reference to ‘cout’ is ambiguous cout<<x; ^ user.cpp:8:10: note: candidates are: <typeprefixerror>cout ofstream cout ("aparitii.out"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^