【Validate Binary Search Tree，判断是否是二叉排序树】的更多相关文章

[LeetCode98]98. Validate Binary Search Tree判断二叉搜索树

判断二叉搜索树的方法是: 中序遍历形成递增序列 //全局变量记录中序遍历产生的序列,因为要递归,所以要用全局变量 List<Integer> list = new ArrayList<>(); public boolean isValidBST(TreeNode root) { /* 这里要注意二叉搜索树的左子树的每个节点都要小于根节点,不只是左孩子,右子树也同样, 常犯的一个错误就是只是判断了左孩子和右孩子 正确方法是:中序遍历法,中序遍历之后的结果是一个递增序列 判断是否是二叉…

【leetcode】Validate Binary Search Tree

Validate Binary Search Tree 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 c…

Leetcode 笔记 98 - Validate Binary Search Tree

题目链接:Validate Binary Search Tree | LeetCode OJ 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…

Validate Binary Search Tree

Validate Binary Search Tree 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 c…

【LeetCode练习题】Validate Binary Search Tree

Validate Binary Search Tree 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 c…

LeetCode: Validate Binary Search Tree 解题报告

Validate Binary Search Tree 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 co…

【LeetCode】98. Validate Binary Search Tree (2 solutions)

Validate Binary Search Tree 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 c…

LintCode Validate Binary Search Tree

Validate Binary Search Tree 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 c…

39. Recover Binary Search Tree && Validate Binary Search Tree

Recover Binary Search Tree OJ: https://oj.leetcode.com/problems/recover-binary-search-tree/ Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is prett…

[CareerCup] 4.5 Validate Binary Search Tree 验证二叉搜索树

4.5 Implement a function to check if a binary tree is a binary search tree. LeetCode上的原题,请参见我之前的博客Validate Binary Search Tree 验证二叉搜索树.…