records

digraph recordbinarytree {
  /* Graph attributs */
  bgcolor = gray90;
  label = "Binary Tree";
  labelloc = "bottom";
  
  /* Default node attributs */
  node [shape=record, fontsize=9, fontname="Helvetica", fontcolor=blue, style=filled, fillcolor=antiquewhite,height="0.2"];
  
  pointer [shape=point];  /* label is not drawn in points */  
  root [label="<left>Left|45|<right>Right"];
  node26 [label="<left>Left|26|<right>Right"];
  node78 [label="<left>Left|78|<right>Right"];
  node71 [label="<left>Left|71|<right>Right"];
  node85 [label="<left>Left|85|<right>Right"];

  pointer -> root;
  root:left -> node26;
  root:right -> node78;
  node78:left -> node71;
  node78:right -> node85;
}