Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:14:37: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (; x <= n; x += x ^ (x - 1) & x) ^ user.cpp: In function ‘int querry(int)’: user.cpp:22:32: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (; x; x -= x ^ (x - 1) & x) ^