Cartesian Tree data structure

data-structure
binary-tree
tree-data-structure
cartesian-tree

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A Cartesian tree is a binary rooted tree data structure that can answer range queries can be answered by finding least common ancestors in the tree. It follows following properties:

  • The Cartesian tree formed from a sequence has a node for each number in that sequence.
  • An inorder traversal of the tree would give the original sequence used to form the tree.
  • Follows the heap property, i.e. each node has value greater than its parent (min heap) or each node has value smaller than its parent (max heap).


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