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Description Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and perf 阅读全文
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Description Vasya has an array a consisting of positive integer numbers. Vasya wants to divide this array into two non-empty consecutive parts (the pr 阅读全文
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Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping 阅读全文
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Description On a grid map there are n little men and n houses. In each unit time, every little man can move one unit step, either horizontally, or ver 阅读全文
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Introduction You are the lead programmer for the Securitron 9042, the latest and greatest in home security software from Jellern Inc. (Motto: We secur 阅读全文