http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=1456 题意:求最短路并且输出字典序最小的答案. 思路:如果用dijkstra来做的话,会比较麻烦,这里直接用floyd会简单的多,只需要记录好后继路径即可. #include<iostream> #include<algorithm> #include<cstring> #include<cstdio> #include<sst…

题目链接: https://vjudge.net/problem/ZOJ-1456 These are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is some cargo that should be delivered from one city to another. The transportation f…

Minimum Transport Cost Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8860    Accepted Submission(s): 2331 Problem Description These are N cities in Spring country. Between each pair of cities…

Minimum Transport CostTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12860    Accepted Submission(s): 3633 Problem DescriptionThese are N cities in Spring country. Between each pair of cities t…

These are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is some cargo that should be delivered from one city to another. The transportation fee consists of two parts: The cost of the…

Minimum Transport Cost Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8794    Accepted Submission(s): 2311 Problem Description These are N cities in Spring country. Between each pair of cities…

Minimum Transport Cost Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10029    Accepted Submission(s): 2716 Problem Description These are N cities in Spring country. Between each pair of cities…

Minimum Transport Cost http://acm.hdu.edu.cn/showproblem.php?pid=1385 Problem Description These are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is some cargo that should be delivere…

These are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is some cargo that should be delivered from one city to another. The transportation fee consists of two parts: The cost of the…

链接:传送门 题意:有 n 个城市,从城市 i 到城市 j 需要话费 Aij ,当穿越城市 i 的时候还需要话费额外的 Bi ( 起点终点两个城市不算穿越 ),给出 n × n 大小的城市关系图,-1 代表两个城市无法连通,询问若干次,求出每次询问的两个城市间的最少花费以及打印出路线图 思路:经典最短路打印路径问题,直接使用一个二维数组 path[i][j] 记录由点 i 到点 j 最短路的最后后继点,这道题关键是当松弛操作相等时,i 到 j 的最短距离是可以由 k 进行跳转的,这时候需要判断这…