hdu 4948 Kingdom(推论) 传送门 题意: 题目问从一个城市u到一个新的城市v的必要条件是存在 以下两种路径之一 u --> v u --> w -->v 询问任意一种能够走完整个地图所有点的访问序列 题解: 首先这道题必然有解,因为题目的条件 其次存在一个推论,对于每个子图而言,当前图入度最大的点距离每个点的距离不超过2,例如 u-->w-->t-->v 如果v是入度最大的点,必然存在一条u/w-->v的路径,往更长的路径进行推论也一样,因为结合上…
Kingdom Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 142 Accepted Submission(s): 84Special Judge Problem Description Teacher Mai has a kingdom consisting of n cities. He has planned the tr…
Kingdom of Black and White Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5583 Description In the Kingdom of Black and White (KBW), there are two kinds of frogs: black frog and white frog. Now N frogs are stand…
Kingdom of Obsession Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 49 Accepted Submission(s): 14 Problem Description There is a kindom of obsession, so people in this kingdom do things very…
Kingdom of Obsession Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Problem Description There is a kindom of obsession, so people in this kingdom do things very strictly. They name themselves in integer, and there…
Problem Description In the Kingdom of Black and White (KBW), there are two kinds of frogs: black frog and white frog. Now N frogs are standing in a line, some of them are black, the others are white. The total strength of those frogs are calculated b…
Kingdom of Black and White Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 585 Accepted Submission(s): 193 Problem Description In the Kingdom of Black and White (KBW), there are two kinds of…
Kingdom Problem Description Teacher Mai has a kingdom consisting of n cities. He has planned the transportation of the kingdom. Every pair of cities has exactly a one-way road. He wants develop this kingdom from one city to one city. Teacher Mai now…
