Compilare: user.cpp: In function ‘void update(int, int, int)’: user.cpp:18:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] int mid = st+dr>> 1; ~~^~~ user.cpp: In function ‘int query(int, int, int)’: user.cpp:30:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] int mid = st+dr>> 1; ~~^~~ user.cpp: In function ‘bool comp(P, P)’: user.cpp:38:30: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return (l.x<r.x || l.x==r.x && l.y<r.y); ~~~~~~~~~^~~~~~~~~~