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FTOUR2 - Free tour II no tags no tags After the success of 2nd anniversary (take a look at problem FTOUR for more details), this 3rd year, Travel Agen 阅读全文
摘要:
Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 25816 Accepted: 8586 Description Give a tree with n vertices,each edge has a length(po 阅读全文