>>484
こんな感じ
ズレてたらすまん

Node
+-----------+
| a        |
+-----------+
| child_count  |
+-----------+
| child      | --> +-------+
+-----------+    | child[0] | --> Node
             +-------+
              | child[1] | --> Node
             +-------+
              | child[2] | --> Node
             +-------+