Compilare: user.cpp: In function ‘int main()’: user.cpp:25: warning: array subscript has type ‘char’ user.cpp:26: warning: array subscript has type ‘char’ user.cpp:28: warning: array subscript has type ‘char’ user.cpp: In function ‘int GetNum(std::string&, int&)’: user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int DetAr(std::string&)’: user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int EvalExp(int, int&)’: user.cpp:48: warning: comparison between signed and unsigned integer expressions user.cpp:54: warning: array subscript has type ‘char’ user.cpp:58: warning: array subscript has type ‘char’ user.cpp: In function ‘int EvalTerm(int, int*, int&)’: user.cpp:83: warning: statement has no effect