Eroare de compilare in evaluator: user.cpp: In function 'int main()': user.cpp:6: error: 't' was not declared in this scope user.cpp:7: error: 'i' was not declared in this scope user.cpp:8: error: 'd' was not declared in this scope user.cpp:8: error: 'm' was not declared in this scope user.cpp:9: error: 'p' was not declared in this scope user.cpp:10: error: 'x' was not declared in this scope user.cpp:11: error: 'j' was not declared in this scope user.cpp:11: error: 'sqrt' was not declared in this scope user.cpp:14: error: 'f' was not declared in this scope