Problem Description Yu Zhou likes to play Go with Su Lu. From the historical research, we found that there are much difference on the rules between ancient go and modern go. Here is the rules for ancient go they were playing: ⋅The game × cell board,…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=5391 Problem Description Tina Town is a friendly place. People there care about each other. Tina has a ball called zball. Zball time times )-th day. Tina want to know its size on the (n-)-th day mo…

Problem Description 有N个比赛队(<=N<=),编号依次为1,,,....,N进行比赛,比赛结束后,裁判委员会要将所有参赛队伍从前往后依次排名,但现在裁判委员会不能直接获得每个队的比赛成绩,只知道每场比赛的结果,即P1赢P2,用P1,P2表示,排名时P1在P2之前.现在请你编程序确定排名. Input 输入有若干组,每组中的第一行为二个数N(<=N<=),M:其中N表示队伍的个数,M表示接着有M行的输入数据.接下来的M行数据中,每行也有两个整数P1,P2表示即P…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=1042 Problem Description Given an integer N( ≤ N ≤ ), your task is to calculate N! Input One N in one line, process to the end of file. Output For each N, output N! in one line. Sample Input Sample…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=5234 Problem Description Today is Gorwin’s birthday. So her mother want to realize her a wish. Gorwin says that she wants to eat many cakes. Thus, her mother takes her to a cake garden. The garden…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4858 Problem Description 我们建造了一个大项目!这个项目有n个节点,用很多边连接起来,并且这个项目是连通的! 两个节点间可能有多条边,不过一条边的两端必然是不同的节点. 每个节点都有一个能量值. 现在我们要编写一个项目管理软件,这个软件呢有两个操作: .给某个项目的能量值加上一个特定值. .询问跟一个项目相邻的项目的能量值之和.(如果有多条边就算多次,比如a和b有2条边,那么询问…

美素数 Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 4482    Accepted Submission(s): 1524 Problem Description 小明对数的研究比較热爱,一谈到数.脑子里就涌现出好多数的问题,今天.小明想考考你对素数的认识. 问题是这种:一个十进制数.假设是素数,并且它的各位数字和也是素数,则称之…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=1257 Problem Description 某国为了防御敌国的导弹袭击,发展出一种导弹拦截系统.但是这种导弹拦截系统有一个缺陷:虽然它的第一发炮弹能够到达任意的高度,但是以后每一发炮弹都不能超过前一发的高度.某天,雷达捕捉到敌国的导弹来袭.由于该系统还在试用阶段,所以只有一套系统,因此有可能不能拦截所有的导弹. 怎么办呢?多搞几套系统呗!你说说倒蛮容易,成本呢?成本是个大问题啊.所以俺…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=5423 Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. There is one of them: For a tree T, let F(T,i) be t…

题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=2444 Problem Description There are a group of students. Some of them may know each other, while others don't. For example, A and B know each other, B and C know each other. But this may not imply t…