Compilare: user.cpp: In function 'int main()': user.cpp:28: warning: array subscript has type 'char' user.cpp:29: warning: array subscript has type 'char' user.cpp:30: warning: array subscript has type 'char' user.cpp:31: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:36: warning: array subscript has type 'char' user.cpp:37: warning: array subscript has type 'char' /tmp/cckxhD3f.o: In function `main': user.cpp:(.text+0x56): warning: the `gets' function is dangerous and should not be used.