Compilare: user.cpp: In function 'void t_add_word(char*)': user.cpp:55: warning: array subscript has type 'char' user.cpp:56: warning: array subscript has type 'char' user.cpp:60: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:187: warning: unused variable 'j' user.cpp:187: warning: unused variable 'k' user.cpp:226: warning: unused variable 'q' /tmp/cctuVwbo.o: In function `main': user.cpp:(.text+0x760): warning: the `gets' function is dangerous and should not be used.