Compilare: user.cpp: In function 'int main()': user.cpp:13: warning: format '%d' expects type 'int*', but argument 3 has type 'long long int*' user.cpp:13: warning: format '%d' expects type 'int*', but argument 4 has type 'long long int*' user.cpp:16: warning: format '%d' expects type 'int*', but argument 3 has type 'long long int*' user.cpp:10: warning: 'x2' may be used uninitialized in this function