Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 12276 Accepted: 3886 Description Give a tree with n vertices,each edge has a length(positive integer less than 1001). Define dist(u,v)=The min distance between node u and v. Give an
D. Distance in Tree time limit per test 3 seconds memory limit per test 512 megabytes input standard input output standard output A tree is a connected graph that doesn't contain any cycles. The distance between two vertices of a tree is the length (
We are given a binary tree (with root node root), a targetnode, and an integer value K. Return a list of the values of all nodes that have a distance Kfrom the target node. The answer can be returned in any order. Example 1: Input: root = [3,5,1,6,2
We are given a binary tree (with root node root), a target node, and an integer value K. Return a list of the values of all nodes that have a distance K from the target node. The answer can be returned in any order. Example 1: Input: root = [3,5,1,6
#include <iostream> #include <stdio.h> #include <string.h> #include <algorithm> #define N 40005 #define M 80005 #define LL long long using namespace std; const int INF = 0x3f3f3f3f; int ver[M],edge[M],head[N],Next[M]; int n,m,tot,r
Given a non-empty string str and an integer k, rearrange the string such that the same characters are at least distance k from each other. All input strings are given in lowercase letters. If it is not possible to rearrange the string, return an empt
Journey Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/92 Description Bob has traveled to byteland, he find the N cities in byteland formed a tree structure, a tree structure is very special structure, there is exa
Count on a tree Time Limit: 129MS Memory Limit: 1572864KB 64bit IO Format: %lld & %llu Submit Status Description You are given a tree with N nodes.The tree nodes are numbered from 1 to N.Each node has an integer weight. We will ask you to perform
Given a non-empty string str and an integer k, rearrange the string such that the same characters are at least distance k from each other. All input strings are given in lowercase letters. If it is not possible to rearrange the string, return an empt
Problem DescriptionAn abandoned country has n(n≤100000) villages which are numbered from 1 to n. Since abandoned for a long time, the roads need to be re-built. There are m(m≤1000000) roads to be re-built, the length of each road is wi(wi≤1000000). G
