Borderou de evaluare (job #503804)

Eroare de compilare: user.cpp: In function 'int main()': user.cpp:9:5: error: 'cin' was not declared in this scope user.cpp:9:5: note: suggested alternative: /usr/include/c++/4.6/iostream:61:18: note: 'std::cin' user.cpp:29:9: error: 'cout' was not declared in this scope user.cpp:29:9: note: suggested alternative: /usr/include/c++/4.6/iostream:62:18: note: 'std::cout' user.cpp:6:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]