Compilare: user.cpp: In function ‘void update(int)’: user.cpp:4:21: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ( x&(x-1)^x ) ^ user.cpp:13:25: note: in expansion of macro ‘zeros’ for ( ; x <= N ; x += zeros(x) ) ^ user.cpp: In function ‘int query(int)’: user.cpp:4:21: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ( x&(x-1)^x ) ^ user.cpp:19:24: note: in expansion of macro ‘zeros’ for ( ; x > 0 ; x -= zeros(x) ) ^