1digraph huffman { 2 node [fontname="DejaVuSans"]; 3 edge [fontname="DejaVuSans"]; 4 margin = "0"; 5 rankdir = "LR"; 6 7 start [shape=circle,label="start"]; 8 start -> n0 [label="0"]; 9 start -> n1 [label="1"]; 10 n0 [shape=circle,label=""]; 11 n0 -> n00 [label="0"]; 12 n0 -> n01 [label="1"]; 13 n00 [shape=circle,label=""]; 14 n00 -> n000 [label="0"]; 15 n00 -> n001 [label="1"]; 16 n000 [shape=record,label="{1|1}"]; 17 n001 [shape=record,label="{0|1}"]; 18 n01 [shape=record,label="{1|0}"]; 19 n1 [shape=record,label="{0|0}"]; 20} 21