LeetCode—108. Convert Sorted Array to Binary Search Tree 题目 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/description/ 将一个递增数组转化为平衡二叉搜索树。平衡二叉搜索树首先是一个二叉搜索树,其次要求每一个节点的左右... ...
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 click to show hints. Hints: If you notice carefully in the flattened tree, each node's right child points ...
在网上看到一个比较普遍的递归算法,链接:http://blog.unieagle.net/2012/12/16/leetcode-problemflatten-binary-tree-to-linked-list/,里面有比较详细的思路解析,可以参考,大致思路是这样:要扁平化一棵树,则扁平化根节点的左子树和右子树,然后将左子树放到根节点的右孩子位置,右子树放到左子树的叶节点的右孩子位...
Runtime: 6 ms, faster than 100.00% of Java online submissions for Flatten Binary Tree to Linked List. Memory Usage: 40 MB, less than 100.00% of Java online submissions for Flatten Binary Tree to Linked List. /** * Definition for a binary tree node. * public class TreeNode { * int v...
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 思路: 递归处理每个结点,如果结点左孩子为空,则无需处理。否则先将结点右孩子挂到左孩子最右边的子孙结点,然后将左...
1. 1classflat{2public:3voidflatten(TreeNode*root) {4if(root == NULL)return;5stack<TreeNode*>s;6s.push(root);7while(!s.empty()) {8TreeNode *p =();9s.pop();10if(p->right)11s.push(p->right);12if(p->left)13s.push(p->left);14p->left =NULL;15if(!s.empty())16p->right...
2019-10-20 11:31 −来源:https://ww2.mathworks.cn/help/matlab/ref/reshape.html?searchHighlight=reshape&s_tid=doc_srchtitle eshape 重构数组 全页折叠 语法 B = reshape... 梅长苏枫笑 0 3504 Flatten Binary Tree to Linked List 2019-12-21 22:15 −Description Flatten a binary tree to a...
searchHighlight=reshape&s_tid=doc_srchtitle eshape 重构数组 全页折叠 语法 B = reshape... 梅长苏枫笑 0 3548 Flatten Binary Tree to Linked List 2019-12-21 22:15 − Description Flatten a binary tree to a fake "linked list" in pre-order traversal. Here we use the right pointer ...
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 click to show hints. Hints: If you notice carefully in the flattened tree, each node's right child points...
inorder的例子可以见LeetCode 426. Convert Binary Search Tree to Sorted Doubly Linked List Iterative PreOrder Iterative preorder非递归第一种写法由于stack的存在,左右儿子放到了stack里,因此修改当前节点的左右节点没有影响。 preorder第二种写法就不行了,和递归中的出现的问题一样,利用copy节点的方法可能可以,...