Compilare: user.cpp: In function ‘void AIBADD(int, int)’: user.cpp:2:19: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) x&(x-1)^x ^ user.cpp:217:32: note: in expansion of macro ‘zeros’ for (int i=pos;i<=1e9+5;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:223:28: note: in expansion of macro ‘zeros’ for (int i=pos;i>=1;i-=zeros(i)) ans += AIB[i]; ^~~~~ user.cpp: In instantiation of ‘void _erase(Type*&, KType) [with Type = treap2; KType = Key2]’: user.cpp:303:47: required from here user.cpp:272:11: warning: unused variable ‘crt’ [-Wunused-variable] Type *crt = new Type(k); ^~~ user.cpp: In instantiation of ‘void _erase(Type*&, KType) [with Type = treap; KType = Key]’: user.cpp:314:39: required from here user.cpp:272:11: warning: unused variable ‘crt’ [-Wunused-variable]