Compilare: user.cpp: In function 'void read()': user.cpp:15: warning: array subscript has type 'char' user.cpp:21: warning: array subscript has type 'char' user.cpp:26: warning: array subscript has type 'char' user.cpp:27: warning: array subscript has type 'char' user.cpp:42: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:48: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:8: warning: 'c' may be used uninitialized in this function user.cpp:7: warning: 'p' may be used uninitialized in this function