Compilare: user.cpp: In function 'int main()': user.cpp:23: warning: array subscript has type 'char' user.cpp:27: warning: array subscript has type 'char' user.cpp:29: warning: array subscript has type 'char' user.cpp:37: warning: array subscript has type 'char' user.cpp:43: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:46: warning: array subscript has type 'char' user.cpp:53: warning: array subscript has type 'char' user.cpp:53: warning: array subscript has type 'char' user.cpp:55: warning: array subscript has type 'char' user.cpp:59: warning: array subscript has type 'char' user.cpp:61: warning: array subscript has type 'char' user.cpp:61: warning: array subscript has type 'char' user.cpp:62: warning: array subscript has type 'char' user.cpp:65: warning: array subscript has type 'char' user.cpp:73: warning: array subscript has type 'char' user.cpp:73: warning: array subscript has type 'char' user.cpp:74: warning: array subscript has type 'char' user.cpp:86: warning: 'c' may be used uninitialized in this function /tmp/cc6CdP6O.o: In function `main': user.cpp:(.text+0x89): warning: the `gets' function is dangerous and should not be used.