题意:给定一个带权边无向基环树,有两种操作,一种是改变某个边的权值,另一种是询问两点间的最短路径. 可以对环进行缩点,以环为根建立一棵新树,并记录与环相连的所有点和环上的哪个点相连,将路径分为环外和环内的两类进行处理.环外的路径可以用树剖+树状数组维护,环内的路径复制一倍,用另一个树状数组维护. #include<bits/stdc++.h> using namespace std; typedef long long ll; ; int hd[N],n,m,ne,sta[N],tp,vis[…
Traffic Network in Numazu 题目描述 Chika is elected mayor of Numazu. She needs to manage the traffic in this city. To manage the traffic is too hard for her. So she needs your help. You are given the map of the city -- an undirected connected weighted gr…
Traffic Network in Numazu Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 677 Accepted Submission(s): 269 Problem Description Chika is elected mayor of Numazu. She needs to manage the traf…
A method is presented for finding a shortest path from a starting place to a destination place in a traffic network including one or more turn restrictions, one or more U-turns and one or more P-turns using a Dijkstra algorithm. The method as sets a…
Problem Description City C is really a nightmare of all drivers for its traffic jams. To solve the traffic problem, the mayor plans to build a RTQS (Real Time Query System) to monitor all traffic situations. City C is made up of N crossings and M roa…
A - Age of Moyu 题意:给出一张图,从1走到n,如果相邻两次走的边的权值不同,花费+1, 否则花费相同,求最小花费 思路:用set记录有当前点的最小花费有多少种方案到达,然后最短路 #include<bits/stdc++.h> using namespace std; const int INF = 0x3f3f3f3f; ; struct Edge{ int to, nxt, val; Edge(){} Edge(int to, int nxt, int val):to(to…
http://technet.microsoft.com/en-us/library/bb742455.aspx Abstract Network Load Balancing, a clustering technology included in the Microsoft Windows 2000 Advanced Server and Datacenter Server operating systems, enhances the scalability and availabilit…
Applications of Reinforcement Learning in Real World 2018-08-05 18:58:04 This blog is copied from: https://towardsdatascience.com/applications-of-reinforcement-learning-in-real-world-1a94955bcd12 There is no reasoning, no process of inference or comp…
The traffic network in a country consists of N cities (labeled with integers from 1 to N) and N-1 roads connecting the cities. There is a unique path between each pair of different cities, and we know the exact length of each road. Write a program th…
https://lunch.blog.luogu.org/cf814e-an-unavoidable-detour-for-homedp-ji-shuo-post https://blog.csdn.net/qq_31759205/article/details/77715991 An unavoidable detour for home CodeForces - 814E Those unwilling to return home from a long journey, will be…
STGNNs:SPATIAL–TEMPORAL GRAPH NEURAL NETWORKS 许多实际应用中的图在图结构和图输入方面都是动态的.STGNNs在捕获图的动态性方面占有重要地位. 这类方法的目的是建模动态节点输入,同时假设连接节点之间的相互依赖性.STGNNs同时捕获一个图的空间和时间依赖性. STGNNs的任务可以是预测未来节点值或标签或预测时空图标签. For example, a traffic network consists of speed sensors placed o…
