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Catch That CowDescriptionFarmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0... 阅读全文
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Emag eht htiw Em PlehDescriptionThis problem is a reverse case of the problem 2996. You are given the output of the problem H and your task is to find... 阅读全文
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Power of CryptographyDescriptionCurrent work in cryptography involves (among other things) large prime numbers and computing powers of numbers among t... 阅读全文
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Help Me with the GameDescriptionYour task is to read a picture of a chessboard position and print it in the chess notation.InputThe input consists of ... 阅读全文
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Robot MotionDescriptionA robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move ar... 阅读全文
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Crashing RobotsDescriptionIn a modernized warehouse, robots are used to fetch the goods. Careful planning is needed to ensure that the robots reach th... 阅读全文
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ParencodingsDescriptionLet S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequence P ... 阅读全文
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TautologyDescriptionWFF 'N PROOF is a logic game played with dice. Each die has six faces representing some subset of the possible symbols K, A, N, C,... 阅读全文
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TilingDescriptionIn how many ways can you tile a 2xn rectangle by 2x1 or 2x2 tiles?Here is a sample tiling of a 2x17 rectangle.InputInput is a sequenc... 阅读全文
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Ubiquitous ReligionsDescriptionThere are so many different religions in the world today that it is difficult to keep track of them all. You are intere... 阅读全文