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C. SubsequencesTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/contest/597/problem/CDescriptionFor the given sequence with n different... 阅读全文
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B. RestaurantTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/contest/597/problem/BDescriptionA restaurant received n orders for the re... 阅读全文
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A. DivisibilityTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/contest/597/problem/ADescriptionFind the number of k-divisible numbers ... 阅读全文