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Grokking the Coding Interview Patterns in Python

Solution: Build Binary Tree from Preorder and Inorder Traversal

Understand how to build a binary tree from preorder and inorder traversal arrays by recursively identifying root nodes and subdividing left and right subtrees. Learn the step-by-step process to implement this binary tree construction with a focus on time and space efficiency using hash maps to optimize search operations.

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Statement

Create a binary tree from two integer arrays, p_order and i_order, where p_order represents a preorder traversal of a binary tree, and i_order represents an inorder traversal of the same tree.

Constraints:

  • 1≤1 \leq p_order.length, i_order.length ≤1000\leq1000
  • i_order.length ====
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