Compilare: user.cpp: In function ‘void Update(int, int, int)’: user.cpp:90:11: warning: statement has no effect [-Wunused-value] for (x; x <= n; x += (x & -x)) ^ user.cpp: In function ‘int Query(int)’: user.cpp:96:11: warning: statement has no effect [-Wunused-value] for (x; x > 0; x -= (x & -x)) ^ user.cpp: In function ‘int main()’: user.cpp:106:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin >> s + pointer; ^