/in/foo.cc: In member function 'void Segment_Tree::build(int, int, int)':
/in/foo.cc:41:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   41 |         int mid = l+r >> 1;
      |                   ~^~
/in/foo.cc: In member function 'll Segment_Tree::query(int, int)':
/in/foo.cc:65:30: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   65 |         int mid = tree[num].l+tree[num].r >> 1;
      |                   ~~~~~~~~~~~^~~~~~~~~~~~