# 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>

## Description

Given two binary trees `original` and `cloned` and given a reference to a node `target` in the original tree.

The `cloned` tree is a **copy of** the `original` tree.

Return *a reference to the same node* in the `cloned` tree.

**Note** that you are **not allowed** to change any of the two trees or the `target` node and the answer **must be** a reference to a node in the `cloned` tree.

**Follow up:** Solve the problem if repeated values on the tree are allowed.

**Example 1:**

![](https://assets.leetcode.com/uploads/2020/02/21/e1.png)

```

**Input:** tree = [7,4,3,null,null,6,19], target = 3
**Output:** 3
**Explanation:** In all examples the original and cloned trees are shown. The target node is a green node from the original tree. The answer is the yellow node from the cloned tree.
```

**Example 2:**

![](https://assets.leetcode.com/uploads/2020/02/21/e2.png)

```

**Input:** tree = [7], target =  7
**Output:** 7
```

**Example 3:**

![](https://assets.leetcode.com/uploads/2020/02/21/e3.png)

```

**Input:** tree = [8,null,6,null,5,null,4,null,3,null,2,null,1], target = 4
**Output:** 4
```

**Example 4:**

![](https://assets.leetcode.com/uploads/2020/02/21/e4.png)

```

**Input:** tree = [1,2,3,4,5,6,7,8,9,10], target = 5
**Output:** 5
```

**Example 5:**

![](https://assets.leetcode.com/uploads/2020/02/21/e5.png)

```

**Input:** tree = [1,2,null,3], target = 2
**Output:** 2
```

**Constraints:**

* The number of nodes in the `tree` is in the range `[1, 10^4]`.
* The values of the nodes of the `tree` are unique.
* `target` node is a node from the `original` tree and is not `null`.

## ac

```java
```