Compilare: user.cpp: In function ‘void aib_add(int, int)’: user.cpp:2:19: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) x&(x-1)^x ^ user.cpp:25:33: note: in expansion of macro ‘zeros’ for (int i=pos+3;i<=Vmax;i+=zeros(i)) AIB[i] += val; ^~~~~ user.cpp: In function ‘int query(int)’: user.cpp:2:19: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) x&(x-1)^x ^ user.cpp:30:30: note: in expansion of macro ‘zeros’ for (int i=pos+3;i>=1;i-=zeros(i)) ans += AIB[i]; ^~~~~