摘要：
这题很水，但一直没看见题目说输入多组数据，添上一下子就过了。 Constructing RoadsTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11452Accepted Submission(s): 4295 Problem DescriptionThere are N villages, which are numbered from 1 to N, and you should build some roads such that e 阅读全文
