[Usaco2005 feb]Secret Milking Machine 神秘的挤奶机 题目大意:约翰正在制造一台新型的挤奶机,但他不希望别人知道．他希望尽可能久地隐藏这个秘密．他把挤奶机藏在他的农场里,使它不被发现．在挤奶机制造的过程中,他需要去挤奶机所在的地方T(1≤T≤200)次．他的农场里有秘密的地道,但约翰只在返回的时候用它．农场被划分成N(2≤N≤200)块区域,用1到200标号．这些区域被P(1≤P≤40000)条道路连接,每条路有一个小于10^6的长度L．两块区域之间可能有多条…

n<=200个点m<=40000条边无向图,求   t次走不经过同条边的路径从1到n的经过的边的最大值   的最小值. 最大值最小--二分,t次不重边路径--边权1的最大流. #include<stdio.h> #include<string.h> #include<stdlib.h> #include<algorithm> //#include<iostream> using namespace std; int n,m,t; #d…

题目描述 Farmer John is constructing a new milking machine and wishes to keep it secret as long as possible. He has hidden in it deep within his farm and needs to be able to get to the machine without being detected. He must make a total of T (1 <= T <=…

Description Farmer John is constructing a new milking machine and wishes to keep it secret as long as possible. He has hidden in it deep within his farm and needs to be able to get to the machine without being detected. He must make a total of T (1 <…

Description 约翰正在制造一台新型的挤奶机,但他不希望别人知道．他希望尽可能久地隐藏这个秘密．他把挤奶机藏在他的农场里,使它不被发现．在挤奶机制造的过程中,他需要去挤奶机所在的地方T(1≤T≤200)次．他的农场里有秘密的地道,但约翰只在返回的时候用它．农场被划分成N(2≤N≤200)块区域,用1到200标号．这些区域被P(1≤P≤40000)条道路连接,每条路有一个小于10^6的长度L．两块区域之间可能有多条道路连接．为了减少被发现的可能,约翰不会两次经过农场上的任何一条道路．当然了…

题目链接:BZOJ - 1733 题目分析 直接二分这个最大边的边权,然后用最大流判断是否可以有 T 的流量. 代码 #include <iostream> #include <cstdlib> #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; const int MaxN = 200 + 5,…

Secret Milking Machine Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9658   Accepted: 2859 Description Farmer John is constructing a new milking machine and wishes to keep it secret as long as possible. He has hidden in it deep within…

Secret Milking Machine Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12324   Accepted: 3589 Description Farmer John is constructing a new milking machine and wishes to keep it secret as long as possible. He has hidden in it deep within…

Description Farmer John is constructing a new milking machine and wishes to keep it secret as long as possible. He has hidden in it deep within his farm and needs to be able to get to the machine without being detected. He must make a total of T (1 <…

http://poj.org/problem?id=2455 (题目链接) 题意 给出一张n个点,p条边的无向图,需要从1号节点走到n号节点一共T次,每条边只能经过1次,问T次经过的最大的边最小是多少. Solution 很显然,二分答案,然后建图跑最大流即可. 细节 双向边? 代码 // poj2455 #include<algorithm> #include<iostream> #include<cstdlib> #include<cstring> #i…