有两台机器A和B以及N个需要运行的任务.每台机器有M种不同的模式,而每个任务都恰好在一台机器上运行.如果它在机器A上运行,则机器A需要设置为模式xi,如果它在机器B上运行,则机器A需要设置为模式yi.每台机器上的任务可以按照任意顺序执行,但是每台机器每转换一次模式需要重启一次.请合理为每个任务安排一台机器并合理安排顺序,使得机器重启次数尽量少. 所以这题求的是 二分图的最小覆盖点(用最小的点 联结所有的边) 最小覆盖点==最大匹配数 一开始为机器状态为0  所以0无需任何代价  不需要计算在内…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 13731   Accepted: 5873 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

Machine Schedule Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=1150 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history.…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4122    Accepted Submission(s): 2005 Problem DescriptionAs we all know, machine scheduling is a very classical problem in compute…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5817    Accepted Submission(s): 2932 Problem Description As we all know, machine scheduling is a very classical problem in comput…

题目大意:机器调度问题,同一个任务可以在A,B两台不同的机器上以不同的模式完成.机器的初始模式是mode_0,但从任何模式改变成另一个模式需要重启机器.求完成所有工作所需最少重启次数. =================================================== 对于任务(i,x,y),我们在A机mode_x与B机mode_y之间连一条边.这样,题目就变成了一个二分图,我们的目的是完成所有任务,即覆盖所有线段,题目要求选择最少的点,使得每个线段至少有一个端点被选中(这个…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6701    Accepted Submission(s): 3358 Problem Description As we all know, machine scheduling is a very classical problem in comput…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 11958   Accepted: 5094 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5371    Accepted Submission(s): 2658 Problem Description As we all know, machine scheduling is a very classical problem in compu…

pid=1150">Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5424    Accepted Submission(s): 2691 Problem Description As we all know, machine scheduling is a very classical pro…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 17454   Accepted: 7327 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 17457   Accepted: 7328 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

题目地址:UVA1194 Machine Schedule 二分图最小覆盖模型的要素 每条边有两个端点,二者至少选择一个.简称 \(2\) 要素. \(2\) 要素在本题中的体现 每个任务要么在 \(A\) 上以 \(a_i\) 模式执行,要么在机器 \(B\) 上以 \(b_i\) 模式执行. 把 \(A,B\) 的 \(m\) 种模式分别作为 \(m\) 个左部点和右部点,每个任务作为边连接左部 \(a_i\) 节点和右部 \(b_i\) 节点. 求这张二分图的最小覆盖,时间复杂度为 \(O…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 14479   Accepted: 6172 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

Machine Schedule Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=1150 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history.…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5316    Accepted Submission(s): 2631 Problem Description As we all know, machine scheduling is a very classical problem in comput…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1150 Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6733    Accepted Submission(s): 3375 Problem Description As we all know, mach…

二分图:https://blog.csdn.net/c20180630/article/details/70175814 https://blog.csdn.net/flynn_curry/article/details/52966283 匈牙利算法模板:https://blog.csdn.net/sunny_hun/article/details/80627351 例题:hdu 1150 Machine Schedule 参考:https://www.cnblogs.com/qq-star/p…

题意 机器调度问题 有两个机器A,B A有n种工作模式0...n-1 B有m种工作模式0...m-1 然后又k个任务要做 每一个任务能够用A机器的模式i或b机器的模式j来完毕 机器開始都处于模式0 每次换模式时都要重新启动 问完毕全部任务机器至少重新启动多少次 最基础的二分图最大匹配问题 对于每一个任务把i和j之间连一条边就能够构成一个二分图 那么每一个任务都能够相应一条边 那么如今就是要找最少的点 使这些点能覆盖全部的边 即点覆盖数 又由于二分图的点覆盖数 = 匹配数 那么就是裸的求二分图最大…

Machine Schedule As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduling problems differ widely in the nature of the constraints that must be satisfied and the type o…

Machine Schedule Time Limit: 1000ms Memory Limit: 32768KB This problem will be judged on HDU. Original ID: 115064-bit integer IO format: %I64d      Java class name: Main   As we all know, machine scheduling is a very classical problem in computer sci…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K       Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduling problems differ widely in the nat…

Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9461    Accepted Submission(s): 4755 Problem Description As we all know, machine scheduling is a very classical problem in compu…

二分图匹配(匈牙利算法) 1.一个二分图中的最大匹配数等于这个图中的最小点覆盖数 König定理是一个二分图中很重要的定理,它的意思是,一个二分图中的最大匹配数等于这个图中的最小点覆盖数.如果你还不知道什么是最小点覆盖,我也在这里说一下:假如选了一个点就相当于覆盖了以它为端点的所有边,你需要选择最少的点来覆盖所有的边. 2.最小路径覆盖=最小路径覆盖＝|G|-最大匹配数 在一个N*N的有向图中,路径覆盖就是在图中找一些路经,使之覆盖了图中的所有顶点, 且任何一个顶点有且只有一条路径与之关联:(如…

版权声明:来自: 码代码的猿猿的AC之路 http://blog.csdn.net/ck_boss https://blog.csdn.net/u012797220/article/details/32732003 最小点覆盖=最大匹配 Machine Schedule Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5350    A…

Machine Schedule Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 12976   Accepted: 5529 Description As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduli…

Machine Schedule 1 #include <iostream> 2 #include <cstdio> 3 #include <cstring> 4 #include <cmath> 5 #include <algorithm> 6 #include <string> 7 #include <vector> 8 #include <set> 9 #include <map> 10 #i…

As we all know, machine scheduling is a very classical problem in computer science and has been studied for a very long history. Scheduling problems differ widely in the nature of the constraints that must be satisfied and the type of schedule desire…

匈牙利算法 目前为止还是半懂不懂的状态 #include<iostream> #include<cstdio> #include<cstring> using namespace std; int n,m,k; ][];//邻接矩阵 ];//B集中访问标记 ];//B集中点i匹配的A中元素 int pd(int a){ int i,j; ;i<m;i++){ if(!vis[i] && mp[a][i]){ vis[i]=; || pd(link1…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1150 很经典的二分题目 就是求最小点覆盖集 二分图最小点覆盖集=最大匹配数 代码: #include<iostream> #include<cstdlib> #include<cstring> #include<cstdio> #define maxn 110 using namespace std; int ans; int n; int m; int k;…