Choose the best route Problem Description One day , Kiki wants to visit one of her friends. As she is liable to carsickness , she wants to arrive at her friend’s home as soon as possible . Now give you a map of the city’s traffic route, and the stati…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2680 Choose the best route Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7201    Accepted Submission(s): 2350 Problem Description One day , Kiki…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=2680 Choose the best route Description One day , Kiki wants to visit one of her friends. As she is liable to carsickness , she wants to arrive at her friend’s home as soon as possible . Now give you a ma…

Choose the best route Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 8224    Accepted Submission(s): 2706 Problem Description One day , Kiki wants to visit one of her friends. As she is liable…

Choose the best route Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 86   Accepted Submission(s) : 35 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description One day , Kiki…

题目链接: Choose the best route Time Limit: 2000/1000 MS (Java/Others)     Memory Limit: 32768/32768 K (Java/Others) Problem Description   One day , Kiki wants to visit one of her friends. As she is liable to carsickness , she wants to arrive at her frie…

http://acm.hdu.edu.cn/showproblem.php?pid=2680 Choose the best route Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9602    Accepted Submission(s): 3111 Problem Description One day , Kiki wants…

题意:小A要乘车到s车站,他有w个起始车站可选,问最短时间. 思路:用Floyd超时,Dijkstra遍历,但是也超时.仔细看看你会发现这道题目好像是多源点单终点问题,终点已经确定,那么我们可以直接转置邻接矩阵,从终点找最小的起点,转换成了单源最短路问题. 代码: #include<cstdio> #include<set> #include<cmath> #include<stack> #include<cstring> #include<…

http://acm.hdu.edu.cn/showproblem.php?pid=2680 Problem Description One day , Kiki wants to visit one of her friends. As she is liable to carsickness , she wants to arrive at her friend's home as soon as possible . Now give you a map of the city's tra…

题目描述:Kiki想去他的一个朋友家,他的朋友家包括所有的公交站点一共有n 个,一共有m条线路,线路都是单向的,然后Kiki可以在他附近的几个公交站乘车,求最短的路径长度是多少. 解题报告:这道题的特点就是有多个起点,但是这并不影响我们使用迪杰斯特拉来解这道题,和前面出现的一个题目一样,我们可以增加一个虚拟的起点,然后令所有的真实的起点到这个虚拟的起点的距离都赋为1,然后就成功的转化成了单源的最短路问题了,并且是单个终点,然后用迪杰斯特拉就OK了,值得注意的就是这题里面的路线都是单向的,即所给出…