题意:有n个女孩围成一个圈从第1号女孩开始有一个球,可以往编号大的抛去(像传绣球一样绕着环来传),每次必须抛给左边第k个人,比如1号会抛给1+k号女孩.给出女孩的人数,如果他们都每个人都想要碰到球一次,那么这个k应该是多少(满足 1 ≤ K ≤ N/2 且 k必须尽量大)?   例如:n=7,那么1号开始拿球,抛球的顺序是 1, 4, 7, 3, 6, 2, 5, 1.  当球重新回到1女孩手中时,每个人刚好只玩了一次.注:这个数字相当大(3 ≤ N ≤ 102000) 思路: 方法(1): 暴…

 Chinese Girls' Amusement Time Limit:1000MS     Memory Limit:64000KB     64bit IO Format:%lld & %llu Submit Status Practice ACdream 1210 Description       You must have heard that the Chinese culture is quite different from that of Europe or Russia.…

Chinese Girls' Amusement Time Limit: 2000/1000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others) SubmitStatisticNext Problem Problem Description You must have heard that the Chinese culture is quite different from that of Europe or Russia. So…

A - Chinese Girls' Amusement Time Limit: 2000/1000MS (Java/Others) Memory Limit: 128000/64000KB (Java/Others) SubmitStatus Problem Description       You must have heard that the Chinese culture is quite different from that of Europe or Russia. So som…

题目传送门 /* 杭电一题(ACM_steps 2.2.4)的升级版,使用到高精度: 这次不是简单的猜出来的了,求的是GCD (n, k) == 1 最大的k(1, n/2): 1. 若n是奇数,则k = (n-1) / 2: 2. 若n是偶数,讨论(n-1)/2 的奇偶性,若不是奇数,则是n/2-2: 详细解释(证明):http://www.xuebuyuan.com/1552889.html */ #include <cstdio> #include <iostream> #i…

Nim or not Nim? Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 3032 Description Nim is a two-player mathematic game of strategy in which players take turns removing objects from distinct heaps.…

Permutation Bo 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5753 Description There are two sequences h1∼hn and c1∼cn. h1∼hn is a permutation of 1∼n. particularly, h0=hn+1=0. We define the expression [condition] is 1 when condition is True,is 0 whe…

Couple doubi 题目链接: http://acm.hust.edu.cn/vjudge/contest/121334#problem/D Description DouBiXp has a girlfriend named DouBiNan.One day they felt very boring and decided to play some games. The rule of this game is as following. There are k balls on th…

Good Luck in CET-4 Everybody! Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4762    Accepted Submission(s): 3058 Problem Description 大学英语四级考试就要来临了,你是不是在紧张的复习?或许紧张得连短学期的ACM都没工夫练习了,反正我知道的Kiki和C…

转载请声明出处:http://www.cnblogs.com/kevince/p/3887827.html    ——By Kevince 首先声明一下,这里的规律指的是循环,即找到最小循环周期. 这么一说大家心里肯定有数了吧,“不就是next数组性质的应用嘛”,没错,正是如此. 在ACM的比赛中有些时候会遇到一些题目,可以或必须通过找出数据的规律来编写代码,这里我们专门来讨论下 如何运用KMP中next数组的性质 来寻找一个长数组中的最小循环周期. 先来看一道题 ZOJ 3785 What d…