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Grokking the Coding Interview Patterns in Go

Solution: Build Binary Tree from Preorder and Inorder Traversal

Understand how to build a binary tree from preorder and inorder traversal arrays by applying recursive depth-first search techniques. Learn to identify the root from preorder data, segment left and right subtrees using inorder data, and optimize the process with hash maps for efficient lookups.

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Statement

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

Constraints:

  • 1≤1 \leq pOrder.length, iOrder.length ≤1000\leq1000
  • iOrder.length ====
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