BST1 LeetCode. Validate Binary Search Tree [Trees] Problem: Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a node contains only nodes with keys greater than the node's key. Both the left and right subtrees must also be binary search trees. -Summary- 1. Create a helper function to r.. 2020. 6. 6. 이전 1 다음
