we have an undirected graph, we can choose any node as root. now, we wantt to choose the node as root which makes the tree with minimun height. and the tree desn;t have to be binary as long as it is a tree. if we have multiple root all minimum height, then return them all. I...
(2) The height of a rooted tree is the number of edges on the longest downward path between the root and a leaf. View Code
2. Create a BIT that supports on range sum query for the number of filled positions in given range [0, r]. 3. For each new person, binary search on BIT using the following decision tree. Denote people[i][1] + 1 as K. It is the correct empty slot for this person, need to + ...
PAT_A1014 Waiting in Line 2019-11-23 17:48 −1014 Waiting in Line (30 分) 作者: CHEN, Yue 单位: 浙江大学 时间限制: 400 ms 内存限制: 64 MB 代码长度限制: 16 KB Suppose a bank has N windows... funforever 0 288 LeetCode 987. Vertical Order Traversal of a Binary Tree ...
LeetCode 987. Vertical Order Traversal of a Binary Tree 2019-12-10 07:55 −原题链接在这里:https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/ 题目: Given a binary tree, return the vertical order traversa...
LeetCode319 Minimum height trees we have an undirected graph, we can choose any node as root. now, we wantt to choose the node as root which makes the tree with minimun height. and the tree desn;t have to be binary as long as it is a tree. if we have multiple root all minimum ...
1/**2* Definition for a binary tree node.3* struct TreeNode {4* int val;5* TreeNode *left;6* TreeNode *right;7* TreeNode(int x) : val(x), left(NULL), right(NULL) {}8* };9*/10classSolution {11public:12TreeNode* dfs(vector<int>& nums,intleft,intright){13if(left>right...