Compilare: user.cpp: In function ‘int main()’: user.cpp:22:19: warning: too many arguments for format [-Wformat-extra-args] scanf("lld", &x); ^ user.cpp:32:28: warning: too many arguments for format [-Wformat-extra-args] else printf("lld", n - 2); ^ user.cpp:16:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ user.cpp:22:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("lld", &x); ^