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0865. Smallest Subtree with all the Deepest Nodes (M)
Smallest Subtree with all the Deepest Nodes (M) 题目 Given the root of a binary tree, the depth of each node is the shortest distance to the root. Retur ...
分类:其他好文   时间:2020-12-17 12:55:47    阅读次数:3
【题解】[USACO19DEC]Tree Depth
"题目链接" 这明摆着是一道计数题,计数题能用些啥?dp?我不会拦你的。多项式?生成函数?没错,这道题就是生成函数。 不能难发现,深度=祖先数+1,而$i$是$j$的祖先,当且仅当对任意在$i$和$j$之间的整数$k$,均满足$a_ij)\end{cases} $$ 方法:考虑先往序列里面插入所有下 ...
分类:其他好文   时间:2020-02-25 23:15:12    阅读次数:81
105. Construct Binary Tree from Preorder and Inorder Traversal
 Leetcode Tree Depth-first Search Given preorder and inorder traversal of a tree, construct... ...
分类:其他好文   时间:2019-10-02 21:08:04    阅读次数:100
[Cracking the Coding Interview] 4.3 List of Depths
Given a binary tree, design an algorithm which creates a linked list of all the nodes at each depth.(e.g., if you have a tree with depth D, you'll hav ...
分类:其他好文   时间:2018-06-16 01:01:26    阅读次数:144
Tree Depth
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分类:其他好文   时间:2016-04-23 16:39:57    阅读次数:121
[CareerCup] 4.4 Create List at Each Depth of Binary Tree 二叉树的各层创建链表
4.4 Given a binary tree, design an algorithm which creates a linked list of all the nodes at each depth (e.g., if you have a tree with depth D, you'll...
分类:其他好文   时间:2015-08-02 00:55:41    阅读次数:137
[leetcode]-Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.Hide Tags: Tree ,Depth-first Search/** * D...
分类:其他好文   时间:2015-07-06 12:29:01    阅读次数:112
LeetCode 104: Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 分析; 此题是求二叉树的深度,(无所谓最大深度),用递归的方法很容...
分类:其他好文   时间:2015-05-14 14:18:49    阅读次数:117
leetcode || 108、Convert Sorted Array to Binary Search Tree
problem: Given an array where elements are sorted in ascending order, convert it to a height balanced BST. Hide Tags  Tree Depth-first Search 题意:将一个递增的序列 转换成一棵 平衡查找二叉树 ...
分类:其他好文   时间:2015-04-23 10:59:34    阅读次数:201
108.Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it toa height balanced BST. HideTags  Tree  Depth-first Search #pragma once #include #include using namespace std;...
分类:其他好文   时间:2015-02-02 23:14:33    阅读次数:181
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