Eroare de compilare in evaluator: user.cpp:4: error: expected constructor, destructor, or type conversion before 'namespace' user.cpp: In function 'int main()': user.cpp:32: error: 'ifstream' was not declared in this scope user.cpp:32: error: expected `;' before 'f' user.cpp:33: error: 'ofstream' was not declared in this scope user.cpp:33: error: expected `;' before 'g' user.cpp:34: error: 'f' was not declared in this scope user.cpp:49: error: 'g' was not declared in this scope user.cpp:52: error: 'g' was not declared in this scope