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tinyevil

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tinyevil
Nov 29th, 2017
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  1. :| Tree
  2. Leaf(Natural)
  3. Node(left:Tree, right:Tree)
  4.  
  5. :| BalancedTree : Tree
  6. Leaf(_)
  7. Node(BalancedTree left, BalancedTree right) | height left == height right
  8.  
  9. is_balanced_tree (Leaf _) = true
  10. is_balanced_tree (Node left right) = is_balanced_tree left && is_balanced_tree right && height left == height right
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