传送门 题目大意 给定$H\times W$的网格$(W,H\leq 10^8)$上的$N$对顶点,即两线交叉的交叉点而非格子内部$(N\leq 10^5)$,求是否存在至少一种方案使得每对点之间都有一条不出网格边界的曲线且曲线互不相交. 题解 假设当前连线情况确定,两点之间是否存在意在连线的可能仅与两点间的连通性由有关,很显然当一对点有任意一点不在边界上,那么由于所有点两两不同,那么连接这对点对其他点对的连通性毫无影响,所以我们只需要判断所有点都在边界上的那些点对之间有没有两两交叉的即可. 可…

Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to find the number of connected components in an undirected graph. Example 1: 0          3 |          | 1 --- 2    4 Given n = 5 and…

Write a program to find the strongly connected components in a digraph. Format of functions: void StronglyConnectedComponents( Graph G, void (*visit)(Vertex V) ); where Graph is defined as the following: typedef struct VNode *PtrToVNode; struct VNode…

// poj 1737 Connected Graph // // 题目大意: // // 带标号的连通分量计数 // // 解题思路: // // 设f(n)为连通图的数量,g(n)为非连通图的数量,h(n)为所有的 // 图的数量,h(n) = 2 ^(n * (n - 1) / 2); // f(n) + g[n] = h(n). // // 考虑标号为1在哪个连通分量内,设连通分量内有k个点,则问题为 // 在n-1个点中选择k-1个点的方法数 C(n-1,k-1),此时1所在的连通图数…

原题链接在这里:https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/ 题目: Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to find the number of connected com…

我的1520之前总是无法解锁,提示:IpOverUsbSvc服务没有开启什么的. 根据网上网友的各种解决方案: 1. 把手机时间设置为当前时间,并且关闭“自动设置” 2. 确保手机接入了互联网 3.确保IpOverUsb服务开启 4. 在设备管理器中卸载“便携设备”中的相应手机 5. 重启手机.重启电脑 都不管用,抱着死马当活马医的态度进行最后的尝试.偶然看到: 我尝试后发现 IpOverUsbEnum.exe执行结果为 No connected partners found 而不是类似这样:…

Connected Graph Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 3156   Accepted: 1533 Description An undirected graph is a set V of vertices and a set of E∈{V*V} edges.An undirected graph is connected if and only if for every pair (u,v)…

  Find the number Weak Connected Component in the directed graph. Each node in the graph contains a label and a list of its neighbors. (a connected set of a directed graph is a subgraph in which any two vertices are connected by direct edge path.) Ex…

Supporting Connected Routes to Subnet Zero IOS allows the network engineer to tell a router to either allow addresses in the zero subnet or not. The motivation has to do with some older IP routing protocols that did not support the use of the zero su…

题目: 找出无向图汇总的相连要素 请找出无向图中相连要素的个数. 图中的每个节点包含其邻居的 1 个标签和 1 个列表.(一个无向图的相连节点(或节点)是一个子图,其中任意两个顶点通过路径相连,且不与超级图中的其它顶点相连.) 样例 给定图: A------B C \ | | \ | | \ | | \ | | D E 返回 {A,B,D}, {C,E}.其中有 2 个相连的元素,即{A,B,D}, {C,E} 解题: 广度优先+递归,写不出来,程序来源 Java程序: /** * Defini…