Eroare de compilare in evaluator: user.cpp:1: error: expected constructor, destructor, or type conversion before '<' token user.cpp: In function 'int main()': user.cpp:6: error: 'stdin' was not declared in this scope user.cpp:6: error: 'freopen' was not declared in this scope user.cpp:7: error: 'stdout' was not declared in this scope user.cpp:8: error: 'scanf' was not declared in this scope user.cpp:12: error: 'sqrt' was not declared in this scope user.cpp:17: error: 'printf' was not declared in this scope