Borderou de evaluare (job #562583)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:8:5: error: ‘ifstream’ was not declared in this scope user.cpp:8:5: note: suggested alternative: /usr/include/c++/4.6/iosfwd:159:34: note: ‘std::ifstream’ user.cpp:8:14: error: expected ‘;’ before ‘cin’ user.cpp:9:5: error: ‘ofstream’ was not declared in this scope user.cpp:9:5: note: suggested alternative: /usr/include/c++/4.6/iosfwd:162:34: note: ‘std::ofstream’ user.cpp:9:14: error: expected ‘;’ before ‘cout’ user.cpp:10:5: error: ‘string’ was not declared in this scope user.cpp:10:5: note: suggested alternative: /usr/include/c++/4.6/bits/stringfwd.h:65:33: note: ‘std::string’ user.cpp:10:12: error: expected ‘;’ before ‘s’ user.cpp:13:9: error: ‘cin’ was not declared in this scope user.cpp:13:14: error: ‘s’ was not declared in this scope user.cpp:30:13: error: ‘cout’ was not declared in this scope user.cpp:32:13: error: ‘cout’ was not declared in this scope