Borderou de evaluare (job #355513)

Eroare de compilare: user.cpp: In function ‘void BT(int)’: user.cpp:14:28: error: reference to ‘cout’ is ambiguous user.cpp:9:10: error: candidates are: std::ofstream cout /usr/include/c++/4.6/iostream:62:18: error: std::ostream std::cout user.cpp:16:3: error: reference to ‘cout’ is ambiguous user.cpp:9:10: error: candidates are: std::ofstream cout /usr/include/c++/4.6/iostream:62:18: error: std::ostream std::cout user.cpp: In function ‘int main()’: user.cpp:32:2: error: reference to ‘cin’ is ambiguous user.cpp:8:10: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:33:28: error: reference to ‘cin’ is ambiguous user.cpp:8:10: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin