leetcode 1305题
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 = [0,-10,10], root2 = [5,1,7,0,2]
Output: [-10,0,0,1,2,5,7,10]
Example 3:
Input: root1 = [], root2 = [5,1,7,0,2]
Output: [0,1,2,5,7]
Example 4:
Input: root1 = [0,-10,10], root2 = []
Output: [-10,0,10]
Example 5:
Input: root1 = [1,null,8], root2 = [8,1]
Output: [1,1,8,8]
Constraints:
Each tree has at most 5000 nodes.
Each node’s value is between [-10^5, 10^5].
This problem solving report see leetcode explanations 1305
