公众号：ByteCode

Code LockTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 821 Accepted Submission(s): 292Problem DescriptionA lock you use has a code

Ubiquitous ReligionsTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 20547 Accepted: 10082DescriptionThere are so many different religions in the world tod

使用并查集查找时，如果查找次数很多，那么使用朴素版的查找方式肯定要超时。比如，有一百万个元素，每次都从第一百万个开始找，这样一次运算就是10^6，如果程序要求查找个一千万次，这样下来就是10^13,肯定要出问题的。　　这是朴素查找的代码,适合数据量不大的情况：int findx(int x){ int r=x; while(parent[r] !=r)

Is It A Tree?Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10559 Accepted Submission(s): 2429Problem DescriptionA tree is a well-

产生冠军Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6631 Accepted Submission(s): 3163Problem Description有一群人，打乒乓球比赛，两两捉对撕杀，每两个人之间最多打一场比

Virtual FriendsTime Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2964 Accepted Submission(s): 861Problem DescriptionThese days, you c

How Many Answers Are WrongTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1609 Accepted Submission(s): 646Problem DescriptionTT a

来自：http://blog.youkuaiyun.com/originalIntention/article/details/8233462/** * 数据结构学习之并查集之数组并查集 * @author Sking */package 并查集;public class ArrayUnionFind { static int[] equivClass;//元素数组，有效索引从1开始 stat

【HDU】1213 How Many Tables 基础并查集★1272 小希的迷宫 基础并查集★1325&&poj1308 Is It A Tree? 基础并查集★1856 More is better 基础并查集★1102 Constructing Roads 基础最小生成树★1232 畅通工程 基础并查集★2120 Ice_cream'

还是畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 20128 Accepted Submission(s): 8936Problem Description某省调查乡村交通状况，得到的统计表中列出了任意两村庄

题目来源http://ac.jobdu.com/problem.php?pid=1526题目1526：朋友圈 时间限制：1 秒内存限制：128 兆特殊判题：否提交：411解决：100题目描述：假如已知有n个人和m对好友关系（存于数字r）。如果两个人是直接或间接的好友（好友的好友的好友...），则认为他们属于同一个朋友圈，请写程序求出这n个人里一共有多

畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22846 Accepted Submission(s): 11908Problem Description某省调查城镇交通状况，得到现有城镇道路统计表，表中列出

题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=1598find the most comfortable roadTime Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2718 Ac

A Bug's Life Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6595 Accepted Submission(s): 2154Problem DescriptionBackground Prof

The SuspectsTime Limit: 1000MS Memory Limit: 20000KTotal Submissions: 18776 Accepted: 9080DescriptionSevere acute respiratory syndrome (SARS), an atypical pneumonia