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畅通工程 Problem Description 某省调查城镇交通状况,得到现有城镇道路统计表,表中列出了每条道路直接连通的城镇.省政府"畅通工程"的目标是使全省任何两个城镇间都可以实现交通(但不一定有直接的道路相连,只要互相间接通过道路可达即可).问最少还需要建设多少条道路?    Input 测试输入包含若干测试用例.每个测试用例的第1行给出两个正整数,分别是城镇数目N ( < 1000 )和道路数目M:随后的M行对应M条道路,每行给出一对正整数,分别是该条道路直接连通的两个…
http://acm.hdu.edu.cn/showproblem.php?pid=3938 Portal Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1921    Accepted Submission(s): 955 Problem Description ZLGG found a magic theory that the b…
题目连接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10085    Accepted Submission(s): 5094 Problem Description Eddy begins to like p…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6866    Accepted Submission(s): 3469 Problem Description Eddy begins to like p…
并查集+最小生成树 Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7669    Accepted Submission(s): 3882 Problem Description Eddy begins to like painting pictures recently ,he is sure of hi…
Eddy's picture 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 ——每天在线,欢迎留言谈论. 题目大意: 给你N个点,求把这N个点连在一起的最短总距离. 思路: 假设每两两点之间都有路径,求最小生成树. AC代码:(Java) import java.util.Scanner; import java.math.*; public class Main { public static final int MAXN = 110;…
坐标之间的距离的方法,prim算法模板. Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5620    Accepted Submission(s): 2821 Problem Description Eddy begins to like painting pictures recently ,he i…
Eddy's picture Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 28   Accepted Submission(s) : 17 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description Eddy begins to like  p…
Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6339    Accepted Submission(s): 3179 Problem Description Eddy begins to like painting pictures recently ,he is sure of himself to b…
Eddy's pictureTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11970    Accepted Submission(s): 6008 Problem DescriptionEddy begins to like painting pictures recently ,he is sure of himself to be…