Inorder Successor in BST 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. 1/**2* Definition for a binary tree node.3* struct TreeNode {4* int val;5* ...
If the given node has no in-order successor in the tree, returnnull. It's guaranteed that the values of the tree are unique. 这道题让我们求二叉搜索树的某个节点的中序后继节点,那么根据 BST 的性质知道其中序遍历的结果是有序的,博主最先用的方法是用迭代的中序遍历方法,然后用一个 bool 型的...
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...
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...
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 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...
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...
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...
285 Inorder Successor In BST Solution O(h) O(1) Medium Tree 286 Walls and Gates Solution O(m*n) O(g) Medium BFS 287 Find the Duplicate Number Solution O(n) O(1) Medium 288 Unique Word Abbreviation Solution O(n) O(1) Easy 289 Game of Life Solution O(m*n) O(m*n), could...
285 Inorder Successor in BST $ 32.50% Medium 286 Walls and Gates $ 29.90% Medium 287 Find the Duplicate Number 32.80% Hard 288 Unique Word Abbreviation $ 16.80% Easy 289 Game of Life 32.60% Medium 290 Word Pattern 26.50% Easy 291 Word Pattern II $ 31.50% Hard 292 Nim Game 49.50% Easy...