# Level Order Binary Tree to Linked List

Given a binary tree `root`

, convert it to a singly linked list using level order traversal.

**Constraints**

`1 ≤ n ≤ 100,000`

where`n`

is the number of nodes in`root`

https://binarysearch.com/problems/Level-Order-Binary-Tree-to-Linked-List

## Examples

### Example 1

**Input**

- root =

**Output**

- answer =

### Example 2

**Input**

- root =

**Output**

- answer =

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