Compilare: user.cpp: In function ‘int Pow2()’: user.cpp:15:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void Read()’: user.cpp:19:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:21:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &value); ^