LC: 1214. Two Sum BSTs

https://leetcode.com/problems/two-sum-bsts/

Question

1214. Two Sum BSTs

Given the roots of two binary search trees, root1 and root2, return true if and only if there is a node in the first tree and a node in the second tree whose values sum up to a given integer target.

Example 1:

Input: root1 = [2,1,4], root2 = [1,0,3], target = 5
Output: true
Explanation: 2 and 3 sum up to 5.

Example 2:

Input: root1 = [0,-10,10], root2 = [5,1,7,0,2], target = 18
Output: false

Constraints:

• The number of nodes in each tree is in the range [1, 5000].

• -109 <= Node.val, target <= 109

The Essence

Details and Solutions