Compilare: user.cpp: In function 'void read()': user.cpp:33: warning: array subscript has type 'char' user.cpp:33: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:40: warning: array subscript has type 'char' user.cpp:40: warning: array subscript has type 'char' user.cpp:42: warning: array subscript has type 'char' user.cpp:42: warning: array subscript has type 'char' user.cpp:42: warning: array subscript has type 'char' user.cpp:42: warning: array subscript has type 'char'