Compilare: user.cpp:4:36: warning: integer constant is so large that it is unsigned [enabled by default] const ull lmax=64+42,VAL=5,MAX_NUM=18446744073709551615; ^ user.cpp: In function ‘long long unsigned int query(long long unsigned int)’: user.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(my_log(now,val)>i)val++; ^ user.cpp:42:15: warning: unused variable ‘sol’ [-Wunused-variable] ull ans=now-1,sol; ^ user.cpp: In function ‘void pre()’: user.cpp:56:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(my_log(MAX_NUM,2)<=r)break; ^ user.cpp:60:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(my_log(MAX_NUM,a)<=r)break; ^ user.cpp: In function ‘int main()’: user.cpp:81:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:72:32: 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:73:34: 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); ^