Eroare de compilare in evaluator: user.cpp:3:15: error: math: No such file or directory user.cpp:36:2: warning: no newline at end of file user.cpp:4: error: 'ifstream' does not name a type user.cpp:5: error: 'ofstream' does not name a type user.cpp:8: error: '::main' must return 'int' user.cpp: In function 'int main()': user.cpp:10: error: 'f' was not declared in this scope user.cpp:34: error: 'g' was not declared in this scope user.cpp:34: error: 'endl' was not declared in this scope