Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:168:27: warning: suggest parentheses around ‘+’ in operand of ‘&’ [-Wparentheses] for (; poz<=n; poz=poz+poz&(-poz)) ^ user.cpp: In function ‘int querry(int)’: user.cpp:175:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] for(; poz; poz=poz-poz&(-poz)) ^ user.cpp: In function ‘int main()’: user.cpp:182:15: warning: unused variable ‘j’ [-Wunused-variable] int i,x,a,j,val; ^ user.cpp: In function ‘int bs(int)’: user.cpp:155:1: warning: control reaches end of non-void function [-Wreturn-type] } ^