Zjnu Stadium Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1631    Accepted Submission(s): 616 Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built…

HDU3047 Zjnu Stadium Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built in Zhejiang Normal University. It was a modern stadium which could hold thousands of people. The audience Seats made a circle. The to…

Zjnu Stadium Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1686    Accepted Submission(s): 634 Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built i…

<题目链接> <转载于 >>> > 题目大意: 有n个人坐在zjnu体育馆里面,然后给出m个他们之间的距离, A B X, 代表B的座位比A多X. 然后求出这m个关系之间有多少个错误,所谓错误就是当前这个关系与之前的有冲突. 解题分析: (1)弄清题意,找出出现冲突的位置,判断冲突很简单就是当两个人在同一行坐,同时他们到根节点的距离差值正好是他们之间的差值,此时就出现了冲突了. (2)关键有两个地方,这也是并查集题目的难点,就是压缩集合,和求节点到根的距离.这里压…

题意:一个300列的无限行的循环场地,a b d代表a,b顺时针相距d的距离,现在给你一些距离,判断是否有冲突,如果有冲突计算冲突的次数 思路:带权并查集 a,b的距离等于b到根节点的距离 - a到根节点的距离 1.当a,b在同一集合的时候就用b到根节点的距离 - a到根节点的距离和当前输入的距离进行对比,看是否满足条件 2.当a,b不在同一集合的时候合并两个节点,更新距离 向量法,方向一定要搞清楚,父亲指向儿子 如果x的父亲rootx ,y的父亲是rooty rootx --> x, root…

本文版权归ljh2000和博客园共有,欢迎转载,但须保留此声明,并给出原文链接,谢谢合作. 本文作者:ljh2000 作者博客:http://www.cnblogs.com/ljh2000-jump/转载请注明出处,侵权必究,保留最终解释权!   Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built in Zhejiang Normal University.…

题意:给出一个n,m,n表示的是有n 个人,m表示的是 有m 对关系: 接下来输入的就是这m对关系,a,b,x:表示的是a,b相距x个距离:然后判断输入的是否与这个数的上面的数信息一致, 输出不一致的数目: 思路:用一个dist[ ]数组记录他到他的祖先的距离:然后对并查集合并的时候将rb的祖先赋给ra,然后就要对dist[rb]的值进行重新赋值,公式为dist[ rb ] = dist[a] + x - dist[b],公式推导可以见下面这张图: 其中为了在找到他的祖先的的同时更新他们的各个d…

转:http://blog.csdn.net/shuangde800/article/details/7983965 #include <cstdio> #include <cstring> #include <queue> #include <set> #include <map> #include <stack> #include <cstdlib> #include <algorithm> #includ…

Zjnu Stadium Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3726    Accepted Submission(s): 1415 Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built…

Zjnu Stadium Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3186    Accepted Submission(s): 1226 Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built…