题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1598 find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3783    Accepted Submission(s): 1617 Problem Description XX星有许多…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1598 find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) 问题描述 XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Structure---超级空中漫游结构)进行交流,每条SARS都对行驶在…

find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3240    Accepted Submission(s): 1373 Problem Description XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Structure---超级…

find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3686    Accepted Submission(s): 1565 Problem Description XX星有很多城市,城市之间通过一种奇怪的快速公路SARS(Super Air Roam Structure---超…

hdu1598 find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3300    Accepted Submission(s): 1406 Problem Description XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Struc…

<题目链接> 题目大意: XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Structure---超级空中漫游结构)进行交流,每条SARS都对行驶在上面的Flycar限制了固定的Speed,同时XX星人对 Flycar的“舒适度”有特殊要求,即乘坐过程中最高速度与最低速度的差越小乘坐越舒服 ,(理解为SARS的限速要求,flycar必须瞬间提速/降速,痛苦呀 ), 但XX星人对时间却没那么多要求.要你找出一条城市间的最舒适的路径.(SARS是双向的). …

find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4899    Accepted Submission(s): 2131 Problem Description XX星有很多城市,城市之间通过一种奇怪的快速公路SARS(Super Air Roam Structure---超…

find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2796    Accepted Submission(s): 1192 Problem Description XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Structure---超…

思路: 考虑一个暴力:枚举最大的边权和最小的边权,然后将边权在这之间的边全拿出来构成一张无向图,剩下的就是判断是否存在一条从$S$到$T$的路径.相当于判$S$和$T$是否连通,用并查集连一下即可.时间复杂度:O(m³α(n))考虑优化,枚举了最小边权之后,从小到大枚举最大边权,每次能新添加一条边.因为并查集是支持动态加边的,所以复杂度就降到O(m²α(n))了.一开始存边的vector忘记每次清零,一直Wrong Answer. #include<cstdio> #include<ve…

题目链接: Road Time Limit: 12000/6000 MS (Java/Others)     Memory Limit: 65536/65536 K (Java/Others) Problem Description There are n villages along a high way, and divided the high way into n-1 segments. Each segment would charge a certain amount of mone…