Compilare: user.cpp: In function ‘void divizori(LL)’: user.cpp:32:13: warning: unused variable ‘m’ [-Wunused-variable] int m = Set.size(); ^ user.cpp: In function ‘int main()’: user.cpp:51:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.in","r",stdin); ^ user.cpp:52:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.out","w",stdout); ^ user.cpp:55:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld ",&b); ^ user.cpp:71:29: warning: ‘half’ may be used uninitialized in this function [-Wmaybe-uninitialized] c = half + (half*half) / it; ^