Compilare: user.cpp: In function `int valid(int)': user.cpp:47: warning: array subscript has type `char' user.cpp:48: warning: array subscript has type `char' user.cpp:49: warning: array subscript has type `char' user.cpp:51: warning: array subscript has type `char' user.cpp:58: warning: array subscript has type `char' user.cpp:59: warning: array subscript has type `char' user.cpp:60: warning: array subscript has type `char' user.cpp:62: warning: array subscript has type `char' user.cpp:80: warning: array subscript has type `char' user.cpp:81: warning: array subscript has type `char' user.cpp:82: warning: array subscript has type `char' user.cpp:84: warning: array subscript has type `char' user.cpp:91: warning: array subscript has type `char' user.cpp:92: warning: array subscript has type `char' user.cpp:93: warning: array subscript has type `char' user.cpp:95: warning: array subscript has type `char' user.cpp:33: warning: `int poz' might be used uninitialized in this function