Borderou de evaluare (job #568394)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:12: error: reference to ‘cin’ is ambiguous user.cpp:3:11: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:7:12: error: reference to ‘cin’ is ambiguous user.cpp:3:11: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:8:12: error: reference to ‘cin’ is ambiguous user.cpp:3:11: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:9:12: error: reference to ‘cin’ is ambiguous user.cpp:3:11: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:10:12: error: reference to ‘cin’ is ambiguous user.cpp:3:11: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:12:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:13:17: error: ‘m’ was not declared in this scope user.cpp:14:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:14:25: error: reference to ‘cout’ is ambiguous user.cpp:4:11: error: candidates are: std::ofstream cout /usr/include/c++/4.6/iostream:62:18: error: std::ostream std::cout user.cpp:14:31: error: ‘x’ was not declared in this scope