Compilare: user.cpp:9:10: warning: ‘typedef’ was ignored in this declaration [enabled by default] }; ^ user.cpp: In function ‘bool cauta()’: user.cpp:17:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<s.length(); ++i) ^ user.cpp: In function ‘void baga()’: user.cpp:27:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<s.length(); ++i) ^ user.cpp: In function ‘void codifica()’: user.cpp:42:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<s.length(); ++i) ^