最小点队的题意:https://www.luogu.com.cn/problem/P2899 与战略游戏不同的是,这里要求占领所有的点而不是边. 1自己被自己染色(有信号塔) 这时我们可以想一下,u被自己染色可以由什么转移过来,如果u已经被自己染色了的话,他的儿子v可以选择自己染色,也可以选择被自己(vv)的儿子染色,当然也可以被u染色,当然,我们要选最小的,所以转移方程就是 f [ u ] [ 0 ] += min ( f [ v ] [ 0 ] , f [ v ] [ 1 ] , …
[USACO08JAN]手机网络Cell Phone Network 题目描述 Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (convenie…
POJ 3659 Cell Phone Network / HUST 1036 Cell Phone Network(最小支配集,树型动态规划,贪心) Description Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone tow…
Cell Phone Network Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6781 Accepted: 2429 Description Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires hi…
P2899 [USACO08JAN]手机网络Cell Phone Network 题目描述 Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (co…
题目描述 Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (conveniently numbered 1..N) so they can all…
题目描述 Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (conveniently numbered 1..N) so they can all…
P2899 [USACO08JAN]手机网络Cell Phone Networ题目描述 Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (conv…
http://poj.org/problem?id=3659 Description Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires him to set up cell phone towers on his N (1 ≤ N ≤ 10,000) pastures (conve…
传送门:http://bailian.openjudge.cn/practice/3383/ [题解] 题目就是最小支配集. 学习了最小支配集的解法: 树形dp(有空可以推一推) 贪心:DFS遍历后逆DFS序进行处理,如果当前这个点不在支配集而且没和支配集连边,那么标记它父亲为支配集成员并处理父亲的父亲和自己(标为和支配集连边的) 具体实现用一个数组记录支配集一个数组记录是否是支配集 or 连过边. # include <stdio.h> # include <string.h>…
题意:有以个 有 N 个节点的树形地图,问在这些顶点上最少建多少个电话杆,可以使得所有顶点被覆盖到,一个节点如果建立了电话杆,那么和它直接相连的顶点也会被覆盖到. 分析:用最少的点覆盖所有的点,即为求最少支配集. 可以用树形DP. ① dp[r][0] += min(dp[i][0],dp[i][1],dp[i][2]) dp[r][0]表示在自 r 顶点自身建, 以 r 为根节点的树所需要的最少覆盖数. ② dp[r][1] += min(dp[i][0],dp[i][…
include include include include include include define db double using namespace std; const int N=1e5+10,M=2*N; int next[M],head[N],go[M],tot; inline void add(int u,int v){ next[++tot]=head[u];head[u]=tot;go[tot]=v; next[++tot]=head[v];head[v]=tot;go…
This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and co…
参考:登上<Cell>封面的AI医疗影像诊断系统:机器之心专访UCSD张康教授 Identifying Medical Diagnoses and Treatable Diseases by Image-Based Deep Learning 2018-2-22 Cell 读<Identifying Medical Diagnoses and Treatable Diseases by Image-Based Deep Learning> 没有问题就无法学习: 1. 文中的数据规模…
Cell Phone Network Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7127 Accepted: 2549 Description Farmer John has decided to give each of his cows a cell phone in hopes to encourage their social interaction. This, however, requires hi…
A method and apparatus enable Internet of Things (IoT) services based on a SMART IoT architecture by integrating connectivity, content, cognition, context, cloud, and collaboration. Joint optimization of a combination of any of connectivity, content,…
