Compilare: user.cpp: In function ‘int BuildNumber(int&, int)’: user.cpp:18:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;pos < Data.size() and isdigit(Data[pos]); ++pos) ^ user.cpp: In function ‘void Evaluate()’: user.cpp:37:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int pos = 0; pos < Data.size(); ++pos) ^ user.cpp:60:98: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (!Operators.empty() and Priority[Operators.top()] >= Priority[Data[pos]]) ^