Compilare: user.cpp: In function ‘void Update(long long int*, int, long long int, int)’: user.cpp:17:15: warning: statement has no effect [-Wunused-value] for (index; index < n; index |= (index + 1)) ^ user.cpp: In function ‘long long int Query(long long int*, int)’: user.cpp:23:15: warning: statement has no effect [-Wunused-value] for (index; index >= 0; index = ((index & (index + 1)) - 1)) ^