public class Solution
extends Object
1305 - All Elements in Two Binary Search Trees\.
Medium
Given two binary search trees `root1` and `root2`, return _a list containing all the integers from both trees sorted in **ascending** order_.
**Example 1:**

**Input:** root1 = [2,1,4], root2 = [1,0,3]
**Output:** [0,1,1,2,3,4]
**Example 2:**

**Input:** root1 = [1,null,8], root2 = [8,1]
**Output:** [1,1,8,8]
**Constraints:**
* The number of nodes in each tree is in the range `[0, 5000]`.
* -105 <= Node.val <= 105