Compilare: user.cpp:30:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:19: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:22: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:27: warning: format '%d' expects type 'int', but argument 2 has type 'long int' user.cpp:18: warning: unused variable 'x'