Compilare: user.cpp: In function ‘void Update(int, int, int)’: user.cpp:37:11: warning: statement has no effect [-Wunused-value] for (x; x <= n; x += (x & -x)) ^ user.cpp: In function ‘int Query(int)’: user.cpp:45:11: warning: statement has no effect [-Wunused-value] for (x; x; x -= (x & -x)) ^ user.cpp: In function ‘int Solve(bool (*)[1011], int)’: user.cpp:51:21: warning: unused variable ‘eventCount’ [-Wunused-variable] int answer = 0, eventCount; ^