Compilare: user.cpp: In function 'int main()': user.cpp:29: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:40: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char'