根据n-1推n的情况,让n从每一个的最右走到最左,再从下一个最左走到最右,如此往复即可. #include<cstdio> using namespace std; int n,a[50000][10],e,b[50000][10],e2; int main(){ scanf("%d",&n); if(n==1){ puts("1"); return 0; } e=1; a[1][1]=1; for(int i=2;i<=n;++i){ e…

Method ringing is used to ring bells in churches, particularly in England. Suppose there are 6 bells that have 6 different pitches. We assign the number 1 to the bell highest in pitch, 2 to the second highest, and so on. When the 6 bells are rung in…

题目链接:http://codeforces.com/gym/101149/my 题目大意:给你n个人,他们有成绩a,b,c.一个人如果两门课比另外一个人高,那么这个人就比那个人厉害.问,是否存在一个人,他的成绩是垫底的?不存在就输出0.(这里保证所有人的成绩abc都是不相同的) 思路:这题目现在,垫底的只有一个人,所以答案只有0和1.然后,我就躺了...不会...23333. 然后看了别人的代码,sort一次就够了,果然是我智障TAT //看看会不会爆int!数组会不会少了一维! //取物问题…

A:Adjoin the Networks One day your boss explains to you that he has a bunch of computer networks that are currently unreachable from each other, and he asks you, the cable expert's assistant, to adjoin the networks to each other using new cables. Exi…

K. Perpetuum Mobile Time Limit: 2 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100187/problem/K Description The world famous scientist Innokentiy almost finished the creation of perpetuum mobile. Its main part is the energy generator which…

Problem H. Hard TestTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100342/attachments Description Andrew is having a hard time preparing his 239-th contest for Petrozavodsk. This time the solution to the problem is based on Di…

Problem I. Instruction 题目连接: http://codeforces.com/gym/100531/attachments Description Ingrid is a head of a big railway station and, among other duties, is responsible for routing trains to the right platforms. The station has one entrance, and there…

Problem A. Alien Communication Masterclass Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100610 Description Andrea is a famous science fiction writer, who runs masterclasses for her beloved readers. The most popular one is the…

H - Football BetsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87493#problem/H Description While traveling to England, it is impossible not to catch the English passion for football. Almost everyon…

---恢复内容开始--- Monocarp has drawn a tree (an undirected connected acyclic graph) and then has given each vertex an index. All indices are distinct numbers from 11 to nn . For every edge ee of this tree, Monocarp has written two numbers: the maximum ind…