Compilare: user.cpp: In function 'void rez()': user.cpp:21: warning: array subscript has type 'char' user.cpp:24: warning: array subscript has type 'char' user.cpp:25: warning: array subscript has type 'char' user.cpp:27: warning: array subscript has type 'char' user.cpp:39: warning: array subscript has type 'char' user.cpp:41: warning: array subscript has type 'char' user.cpp:44: warning: array subscript has type 'char' user.cpp:49: warning: array subscript has type 'char' user.cpp:50: warning: array subscript has type 'char' user.cpp:52: warning: array subscript has type 'char' /tmp/ccO881uX.o: In function `read()': user.cpp:(.text+0x274): warning: the `gets' function is dangerous and should not be used.