Compilare: user.cpp:4:36: warning: integer constant is so large that it is unsigned [enabled by default] const ull lmax=64+42,VAL=4,MAX_NUM=18446744073709551615; ^ user.cpp: In function ‘void pre()’: user.cpp:59:10: warning: unused variable ‘v2’ [-Wunused-variable] ull a,v1,v2; ^ user.cpp: In function ‘int main()’: user.cpp:88:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bonus.in", "r", stdin); ^ user.cpp:89:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bonus.out", "w", stdout); ^ user.cpp:94:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i",&n); ^ user.cpp:98:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%llu",&x); ^