Eroare de compilare in evaluator: user.cpp:21:11: warning: no newline at end of file user.cpp:9: warning: ISO C++ forbids declaration of 'main' with no type user.cpp: In function 'int main()': user.cpp:13: error: 'ifstream' was not declared in this scope user.cpp:13: error: expected `;' before 'f' user.cpp:14: error: 'fstream' was not declared in this scope user.cpp:14: error: expected `;' before 'g' user.cpp:15: error: 'f' was not declared in this scope user.cpp:19: error: 'g' was not declared in this scope