传送门:hdu2063过山车 #include <cstdio> #include <cstring> #include <string> #include <cmath> #include <iostream> #include <algorithm> #include <queue> #include <cstdlib> #include <stack> #include <vector&…

题目链接:https://vjudge.net/problem/HDU-1083 Courses Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8869    Accepted Submission(s): 4319 Problem Description Consider a group of N students and P c…

题目链接:https://cn.vjudge.net/problem/HDU-1083 题意 有一些学生,有一些课程 给出哪些学生可以学哪些课程,每个学生可以选多课,但只能做一个课程的代表 问所有课能否全部都有代表? 思路 二分图最大匹配问题 一个学生只能匹配一个课程,那么X部是学生,Y部是课程 求最大匹配即可 注意 二分图复杂度O(E*V) 邻接矩阵里G[a][b], a属于X部,b属于Y部,这是俩图所以ab节点的id可以相同 初始化match和vis 提交过程 AC 模版题 代码 #incl…

onsider a group of N students and P courses. Each student visits zero, one or more than one courses. Your task is to determine whether it is possible to form a committee of exactly P students that satisfies simultaneously the conditions: . every stud…

Courses Problem Description Consider a group of N students and P courses. Each student visits zero, one or more than one courses. Your task is to determine whether it is possible to form a committee of exactly P students that satisfies simultaneously…

Courses Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8490    Accepted Submission(s): 4134 Problem Description Consider a group of N students and P courses. Each student visits zero, one or…

题目链接:http://poj.org/problem?id=1469   http://acm.hdu.edu.cn/showproblem.php?pid=1083 题意:有n个学生p门课, 每门课有m个人可以选择 1.每个人最后都有单独的一门课: 2.每门课都有人选: 满足两个条件输出YES,否则NO: 其实就是求最大匹配是否等于p: #include<stdio.h> #include<string.h> #include<iostream> #include&…

Cources Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11298    Accepted Submission(s): 5299 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1083 Description: Consider a group of N students an…

Courses Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4175    Accepted Submission(s): 1990 Problem Description Consider a group of N students and P courses. Each student visits zero, one or…

Courses Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5153    Accepted Submission(s): 2477 Problem Description Consider a group of N students and P courses. Each student visits zero, one or…