检查一个图是否是二分图的算法 使用的是宽度搜索: 1 初始化一个颜色记录数组 2 利用queue宽度遍历图 3 从随意源点出发.染色0. 或1 4 遍历这点的邻接点.假设没有染色就染色与这个源点相反的颜色,假设已经染色而且和源点的值相反.那么就是合法点,假设是同样的颜色.那么就不能是二分图 參考:http://www.geeksforgeeks.org/bipartite-graph/ #include <stdio.h> #include <iostream> #include…

Check whether a given graph is Bipartite or not A Bipartite Graph is a graph whose vertices can be divided into two independent sets, U and V such that every edge (u, v) either connects a vertex from U to V or a vertex from V to U. In other words, fo…

#include<iostream> #include<cstdio> #include<cstring> #include<limits> #include<vector> using namespace std; ; struct edge{ int to, cost; edge(int t){ ; } }; void addEdge(vector<edge> &edgelist, vector<vector<…

题意:有\(n\)个点和\(m\)条无向边,现在让你给你这\(m\)条边赋方向,但是要满足任意一条边的路径都不能大于\(1\),问是否有满足条件的构造方向,如果有,输出一个二进制串,表示所给的边的方向. 题解:我们先单独拿出\(3\)个点来看,选择一个点,那么与它相连的另外两个点到自己的方向一定是相同的,同理,我们可以推广到任意一个点,与它相连的所有点到它的方向必须都是一样的才行,其实到这儿就不难看出可以用二分图染色来写了,然后打个板子就能很愉快的AC啦~ 代码: int n,m; int a,…

原题链接在这里:https://leetcode.com/problems/is-graph-bipartite/ 题目: Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that eve…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

［抄题］: Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node…

Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one node in A and another node in B.…

[LeetCode]785. Is Graph Bipartite? 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/is-graph-bipartite/description/ 题目描述: Given an undirected graph, return true if and only if it is bipartite. Re…

原文:http://www.bubuko.com/infodetail-2250226.html 项目中用dubbo发生: Failed to check the status of the service com.taotao.service.ItemService. No provider available for the service 原因: Dubbo缺省会在启动时检查依赖的服务是否可用,不可用时会抛出异常,阻止Spring初始化完成,以便上线时,能及早发现问题,默认check=tr…

假如我要为一个表中添加一个外键约束.语法如下 alter table  dbo.employee with check add constraint [FK_employeeno]  foreign key ([colorcode]) references  dbo.color([colorcode]) 其中的with check /nocheck 的作用: 指定表中的数据是否用新添加的或者重新启用的foregin key 或者check 进行验证. check :对添加验证之前的数据也进行验证…

C - 3 Steps Time limit : 2sec / Memory limit : 256MB Score : 500 points Problem Statement Rng has a connected undirected graph with N vertices. Currently, there are M edges in the graph, and the i-th edge connects Vertices Ai and Bi. Rng will add new…

645. Set Mismatch The set S originally contains numbers from 1 to n. But unfortunately, due to the data error, one of the numbers in the set got duplicated to another number in the set, which results in repetition of one number and loss of another nu…

I am Nexus Master!  The 13th Zhejiang University Programming Contest 参见:http://www.bnuoj.com/bnuoj/problem_show.php?pid=29137 题意就理解错了!!! 之后乱搞就也错了!!! Current Server Time: 2013-08-30 23:29:55 I am Nexus Master! Time Limit: 2000ms Memory Limit: 65536KB…

找规律水题... Traveling Cellsperson Time Limit: 1000ms Memory Limit: 65535KB This problem will be judged on UESTC. Original ID: 185264-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:  …

状压DP... Kings on a Chessboard Time Limit: 10000ms Memory Limit: 65535KB This problem will be judged on UESTC. Original ID: 185164-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:  …

Query on a tree Time Limit: 5000ms Memory Limit: 262144KB   This problem will be judged on SPOJ. Original ID: QTREE64-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:   None Graph…

链接:http://www.bnuoj.com/bnuoj/problem_show.php?pid=25585 Current Server Time: 2013-08-27 20:42:26 Robots on a grid Time Limit: 3000ms Memory Limit: 65536KB   64-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Disc…

Cellphone Typing Time Limit: 5000ms Memory Limit: 131072KB   This problem will be judged on UVA. Original ID: 1252664-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:   None Graph…

题目链接:http://www.bnuoj.com/bnuoj/problem_show.php? pid=17121 2014-04-25 22:59:49 不和谐的长难句1 Time Limit: 8000ms Case Time Limit: 2000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main pid=17120" class="ui-button ui-wi…

鸣人的查克拉 Time Limit: 1000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main Prev pid=29065#" class="submitprob ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" style="margin:0px 0.1e…

链接: http://www.bnuoj.com/bnuoj/problem_show.php?pid=26579 http://www.bnuoj.com/bnuoj/contest_show.php?cid=2318#problem/25687 Andrew the Ant Time Limit: 4000ms Memory Limit: 65536KB   64-bit integer IO format:  %lld      Java class name:  Main Prev  S…

Liserious战队 Time Limit: 1000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size:  +   - Type:   None Graph Theory      2-SAT     Articulation/Bridge/Biconnected Compo…

While R's base graphics library is almost limitlessly flexible when it comes to create static graphics and data visualizations, new Web-based technologies like d3 and webgl open up new horizons in high-resolution, rescalable and interactive charts. G…

夜空中最亮的星 Time Limit: 2000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main Prev Submit showpid=34977" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" style="margin:0px 0.1e…