06 2023 档案
摘要:题目: Given a sequence of positive integers and another positive integer p. The sequence is said to be a perfect sequence if M≤m×p where M and m are the
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摘要:题目: There is a public bike service in Hangzhou City which provides great convenience to the tourists from all over the world. One may rent a bike at a
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摘要:题目: As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by som
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