Compilare: main.cpp: In function 'void update(int, int)': main.cpp:14:30: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] for (; x <= N; x += x^(x-1) & x) ~~~~~~^~~ main.cpp: In function 'int query(int)': main.cpp:23:25: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] for (; x; x -= x^(x-1) & x) ~~~~~~^~~