摘要：
/** * 700. Search in a Binary Search Tree * https://leetcode.com/problems/search-in-a-binary-search-tree/description/ * */ class TreeNode(var `val`: Int) { var left: TreeNode? = null var ... 阅读全文
摘要：
958. Check Completeness of a Binary Tree //https://leetcode.com/problems/check-completeness-of-a-binary-tree/description/ class TreeNode(var `val`: Int) { var left: TreeNode? = null var right: TreeNod 阅读全文