Compilare: user.cpp: In function 'int main()': user.cpp:22: warning: format '%d' expects type 'int', but argument 2 has type 'int64_t' user.cpp:24: warning: format '%d' expects type 'int', but argument 2 has type 'int64_t' user.cpp:29: warning: format '%d' expects type 'int', but argument 2 has type 'int64_t' user.cpp:34: warning: format '%d' expects type 'int', but argument 2 has type 'int64_t' user.cpp:11: warning: 'aux' may be used uninitialized in this function