Compilare: user.cpp: In function ‘int main()’: user.cpp:17: warning: array subscript has type ‘char’ user.cpp:19: warning: array subscript has type ‘char’ user.cpp:19: warning: array subscript has type ‘char’ user.cpp:41: warning: array subscript has type ‘char’ user.cpp:45: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:51: warning: array subscript has type ‘char’ user.cpp:52: warning: array subscript has type ‘char’