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A Simple Problem with Integers Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation 阅读全文
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Billboard Time Limit: 20000/8000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description At the entrance to the university, the 阅读全文
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Segment Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description Silen August does not like to talk with o 阅读全文
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Nearest Common Ancestors Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below: In t 阅读全文
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A Magic Lamp Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description Kiki likes traveling. One day she fi 阅读全文