Compilare: user.cpp: In function 'int main()': user.cpp:7: warning: format '%lld' expects type 'long long int*', but argument 2 has type 'long unsigned int*' user.cpp:8: warning: format '%lld' expects type 'long long int*', but argument 2 has type 'long unsigned int*' user.cpp:10: warning: too many arguments for format