Compilare: user.cpp: In function ‘int main()’: user.cpp:34: warning: unused variable ‘c’ user.cpp:35: warning: unused variable ‘nr’ user.cpp: In function ‘date cauta(int)’: user.cpp:30: warning: ‘nr.date::z’ may be used uninitialized in this function user.cpp:30: warning: ‘nr.date::y’ may be used uninitialized in this function user.cpp:30: warning: ‘nr.date::x’ may be used uninitialized in this function