# 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree

[1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree](https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/)

作法類似 [100. Same Tree](/algorithm-and-data-structure/problems/tree/same-tree.md#bfs)

面試時首先要確保 original 和 cloned 一定是一模一樣的結構與樹（基本上一定會是一樣的啦，不然這題就不可能做了）

## DFS

```python
# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, x):
#         self.val = x
#         self.left = None
#         self.right = None

class Solution:
    def getTargetCopy(self, original: TreeNode, cloned: TreeNode, target: TreeNode) -> TreeNode:
        if not original or not cloned:
            return None
        if original == target: return cloned
        left = self.getTargetCopy(original.left, cloned.left, target)
        if left: return left
        right = self.getTargetCopy(original.right, cloned.right, target)
        return right
```

## BFS

```python
# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, x):
#         self.val = x
#         self.left = None
#         self.right = None

class Solution:
    def getTargetCopy(self, original: TreeNode, cloned: TreeNode, target: TreeNode) -> TreeNode:
        queue = deque([(original, cloned)])

        while queue:
            ori, clo = queue.popleft()
            if ori == target:
                return clo
            if ori.left:
                queue.append((ori.left, clo.left))
            if ori.right:
                queue.append((ori.right, clo.right))
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://garylai.gitbook.io/algorithm-and-data-structure/problems/tree/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.