Compilare: user.cpp:11: warning: non-local variable ‘<anonymous struct> T [10005]’ uses anonymous type user.cpp: In function ‘void read()’: user.cpp:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result