Compilare: user.cpp: In function ‘int main()’: user.cpp:18: warning: array subscript has type ‘char’ user.cpp:19: warning: array subscript has type ‘char’ user.cpp:22: warning: array subscript has type ‘char’ user.cpp:24: warning: array subscript has type ‘char’ user.cpp:27: warning: array subscript has type ‘char’ user.cpp:32: warning: array subscript has type ‘char’ user.cpp:32: warning: array subscript has type ‘char’ user.cpp:33: warning: array subscript has type ‘char’ user.cpp:33: warning: array subscript has type ‘char’