摘要：
Clairewd’s message Clairewd is a member of FBI. After several years concealing in BUPT, she intercepted some important messages and she was preparing 阅读全文
摘要：
LCIS Given n integers. You have two operations: U A B: replace the Ath number by B. (index counting from 0) Q A B: output the length of the longest co 阅读全文
摘要：
Hotel The cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superior. Be 阅读全文