摘要： Description:Give you a string with length N, you can generate N strings by left shifts. For example let consider the string “SKYLONG”, we can generate... 阅读全文

摘要： Given two integers A and B. Sequence S is defined as follow:• S0 = A• S1 = B• Si = |Si−1 − Si−2| for i ≥ 2Count the number of distinct numbers in S.In... 阅读全文

摘要： Description：Clairewd is a member of FBI. After several years concealing in BUPT, she intercepted some important messages and she was preparing for sen... 阅读全文