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1555: Inversion Sequence Description For sequence i1, i2, i3, … , iN, we set aj to be the number of members in the sequence which are prior to j and g 阅读全文
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1552: Friends Description On an alien planet, every extraterrestrial is born with a number. If the sum of two numbers is a prime number, then two extr 阅读全文
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1553: Good subsequence Description Give you a sequence of n numbers, and a number k you should find the max length of Good subsequence. Good subsequen 阅读全文
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1556: Jerry's trouble Description Jerry is caught by Tom. He was penned up in one room with a door, which only can be opened by its code. The code is 阅读全文
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1549: Navigition Problem Description Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft 阅读全文
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1550: Simple String Description Welcome,this is the 2015 3th Multiple Universities Programming Contest ,Changsha ,Hunan Province. In order to let you 阅读全文
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1548: Design road Description You need to design road from (0, 0) to (x, y) in plane with the lowest cost. Unfortunately, there are N Rivers between ( 阅读全文
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1547: Rectangle Description Now ,there are some rectangles. The area of these rectangles is 1* x or 2 * x ,and now you need find a big enough rectangl 阅读全文