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Learn Data Structures and Algorithms in JavaScript

Problem: Same Tree

Understand how to determine if two binary trees are identical by comparing their structure and node values recursively. This lesson guides you through a depth-first traversal solution in JavaScript, explaining the logic, implementation, and complexity analysis.

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Statement

Given the roots of two binary trees, p and q, determine whether the two trees are identical.

Two binary trees are considered the same if they share the same structure and every corresponding node contains the same value.

Constraints:

  • The number of nodes in each tree is in the range [0,100][0, 100].

  • −104≤-10^4 \leq Node.data ...