Borderou de evaluare (job #330527)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:5: error: ‘cin’ was not declared in this scope user.cpp:6:5: note: suggested alternative: /usr/include/c++/4.6/iostream:61:18: note: ‘std::cin’ user.cpp:9:18: error: ‘pow’ was not declared in this scope user.cpp:14:9: error: ‘cout’ was not declared in this scope user.cpp:14:9: note: suggested alternative: /usr/include/c++/4.6/iostream:62:18: note: ‘std::cout’ user.cpp:15:15: error: ‘getch’ was not declared in this scope