传送门 求出一条s到t的路径，使得这条路径上经过最高温度最小的前提下，总长度最短。 什么最大值最小很容易想到二分...就每次枚举最高温度然后在这个温度下跑最短路看是否连通。 但是这道题也可以用最小生成树的算法来做qwq 想要温度尽量小，就以温度为关键字，跑一遍最小生成树，就得到了使
题目大意 沙漠中有n 个绿洲（编号为1-n）和e 条连接绿洲的双向道路。每条道路都有一个长度d 和一个温度值r 。给定起点绿洲编号s 和终点绿洲编号t ，求出一条s 到t 的路径，使得这条路径上经过的所有道路的最高温度尽量小，如果有多条路径，选择总长度最短的那一条。 输入格式 输入包含
class Node: def __init__(self,item): self.item = item self.lchild = None self.rchild = None class BinaryTree: def __init__(self, node=None): self.root = node def add(self, item): if self.root is Non
package pkg1[．pkg2[．pkg3…]]; package net.java.util;public class Something{ ...} package animals; interface Animal { public void eat(); public void travel();} package animals; /* 文件名 : MammalInt.java */public class MammalInt implements Animal{
134. Gas Station There are N gas stations along a circular route, where the amount of gas at station iis gas[i]. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from station i to its next station (i+1). You begin the jo
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一般情况下，动态规划转移方程是单向的。期望DP中，若状态转移不是单向的，即状态之间相互影响。则使用解方程的思想，将状态设为变量，将状态转移方程转化为变量方程，构造矩阵。通过高斯消元求解。 题意 人在0到n-1的数轴上来回移动，给定起始点x，终止点y，初始方向d，每步移动k个单位的概率pk
1030 Travel Plan (30 分) A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her star
题目 什么神仙题啊，我怎么只会\(dsu\)啊 我们考虑一个非常暴力的操作，我们利用\(dsu\ on \ tree\)把一棵子树内部的非树边都搞出来，用一个堆来存储 我们从堆顶开始暴力所有的边，如果这条边指向的另外一个点不在当前子树里，我们就把这条边计入答案 这样复杂度显然不是很对，因为我们每次可
There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from station i to its next station (i+1). You begin the journey with an em
PAT 1030.Travel Plan（30） A traveler’s map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her starting city a
CSSE1001 / 7030 Semester 1, 2019Assignment 1 (15 Marks)Due: Friday 29 March 2019 at 20:30IntroductionWelcome to Travel Inspiration!We are going to be building a travel recommendation program. Out of ideas where to travel? TravelInspiration has got you cov
和1018思路如出一辙，先求最短路径，再dfs遍历 #include <iostream>#include <cstdio>#include <vector>#include<algorithm>using namespace std;int e[500][500], c[500][500];// distence costvector<int> pre[500];//到达当前节点的前一个节点vector<vector<int&g
题目 OIVillage 是一个风景秀美的乡村，为了更好的利用当地的旅游资源，吸引游客，推动经济发展，xkszltl 决定修建了一条铁路将当地 $n$ 个最著名的经典连接起来，让游客可以通过火车从铁路起点（ $1$ 号景点）出发，依次游览每个景区。为了更好的评价这条铁路，xkszltl 为每一个景区都赋予了一个美
题目如下： In a country popular for train travel, you have planned some train travelling one year in advance. The days of the year that you will travel is given as an array days. Each day is an integer from 1 to 365. Train tickets are sold in 3 differe
算法描述： here are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from station i to its next station (i+1). You begin the journey wi
In a country popular for train travel, you have planned some train travelling one year in advance. The days of the year that you will travel is given as an array days. Each day is an integer from 1 to 365. Train tickets are sold in 3 different ways:
