妍恐龙的博客....^~^眼熟我

网络 Time Limit: 1000 MS Memory Limit: 65535 K Total Submit: 163(52 users) Total Accepted: 86(51 users) Rating: Special Judge: No Description 一个电话公司建立了一个新的电话网，他们用1——N的整数标记了一些地方，每个地方有唯一的编号，网络中的每条电缆

Nearest Common Ancestors Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28271 Accepted: 14467 DescriptionA rooted tree is a well-known data structure in computer science and