Compilare: main.cpp: In function 'int query(int)': main.cpp:24:27: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] x -= (x ^ (x - 1) & x); ~~~~~~~~^~~ main.cpp: In function 'void update(int, int)': main.cpp:33:27: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] x += (x ^ (x - 1) & x); ~~~~~~~~^~~