Given a binary search tree and a node in it, find the in-order successor of that node in the BST. Note: If the given node has no in-order successor in the tree, returnnull. 给一个二叉搜索树和它的一个节点,找出它的中序后继节点,如果没有返回null。 解法1: 用中序遍历二叉搜索树,当找...
若 node 是其 parent 的右子结点时,则将 node 赋值为其 parent,继续向上找,直到其 parent 结点不存在了,此时说明不存在大于 node 值的祖先结点,这说明 node 是 BST 的最后一个结点了,没有后继结点,直接返回 nullptr 即可,参见代码如下: 解法二: classSolution {public: Node* inorderSuccessor(Node*node) {...
Given a binary search tree and a node in it, find the in-order successor of that node in the BST. The successor of a nodepis the node with the smallest key greater thanp.val. Example 1: Input: root = [2,1,3], p = 1 Output: 2 Explanation: 1's in-order successor node is 2...
Given a binary search tree and a node in it, find the in-order successor of that node in the BST. Note: If the given node has no in-order successor in the tree, returnnull. 题解: successor could be自己的parent, or 右子树中最左的点. For both cases, if p.val < root.val, updat...
Leetcode 510 Inorder Successor in BST II 基于图的DFS: 和BFS一样一般需要一个set来记录访问过的节点,避免重复访问造成死循环 Leetcode 341 Flatten Nested List Iterator Leetcode 394 Decode String Leetcode 51 N-Queens Leetcode 291 Word Pattern II (I为简单的Hashmap题) Leetcode 126 Word Ladder II...
Leetcode 333 Largest BST Subtree (与98类似) (分治) Leetcode 285 Inorder Successor in BST (I, II) 基于图的DFS: 和BFS一样一般需要一个set来记录访问过的节点,避免重复访问造成死循环; Word XXX 系列面试中非常常见,例如word break,word ladder,word pattern,word search。 Leetcode 341 Flatten Nested...
0285 Inorder Successor in BST 48.3% Medium 0286 Walls and Gates 60.2% Medium 0287 Find the Duplicate Number Go 59.1% Medium 0288 Unique Word Abbreviation 25.2% Medium 0289 Game of Life 66.6% Medium 0290 Word Pattern Go 40.4% Easy 0291 Word Pattern II 46.9% Medium 0292 Nim Game...
二叉搜索树中的中序后继 II Inorder Successor in BST II 126 -- 10:36 App LeetCode力扣 837. 新 21 点 New 21 Game 115 -- 20:33 App LeetCode力扣 410. 分割数组的最大值 Split Array Largest Sum 110 -- 10:39 App LeetCode力扣 994. 腐烂的橘子 Rotting Oranges 112 -- 9:07 App ...
285 Inorder Successor in BST Medium Solution 286 Walls and Gates Medium Solution 287 Find the Duplicate Number Medium Solution 288 Unique Word Abbreviation Medium Solution 289 Game of Life Medium Solution 290 Word Pattern Easy Solution 291 Word Pattern II Medium Solution 293 Flip Game Easy Solution...
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