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select N , case when P IS NULL then "Root" when N in (select p from BST where p is not null) then "Inner" else "Leaf" end as types from BST order by n
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Binary Tree Nodes
You are viewing a single comment's thread. Return to all comments →
select N , case when P IS NULL then "Root" when N in (select p from BST where p is not null) then "Inner" else "Leaf" end as types from BST order by n