Compilare: user.cpp: In function ‘void Read()’: user.cpp:36:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:38:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &V[i]); ^ user.cpp: In function ‘int binary(int)’: user.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type] } ^