畅通工程再续 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 20452    Accepted Submission(s): 6442 Problem Description 相信大家都听说一个“百岛湖”的地方

畅通工程再续 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 26109 Accepted Submission(s): 8459 Problem Description 相信大家都听说一个“百岛湖”的地方吧，百岛湖的居民生活在不同的小