Eroare de compilare in evaluator: user.cpp:25:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:4: error: 'fstream' was not declared in this scope user.cpp:4: error: expected `;' before 'f' user.cpp:6: error: 'f' was not declared in this scope user.cpp:6: error: 'ios' has not been declared user.cpp:9: error: 'g' was not declared in this scope user.cpp:9: error: 'ios' has not been declared