摘要:Ultra-QuickSort OpenJ_Bailian - 2299 In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n dist
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摘要:Lucky Queries CodeForces - 145E Petya loves lucky numbers very much. Everybody knows that lucky numbers are positive integers whose decimal record con
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摘要:Traffic Jams in the Land CodeForces - 498D Some country consists of (n + 1) cities, located along a straight highway. Let's number the cities with con
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摘要:Atlantis There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts
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摘要:During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, vil
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摘要:The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral posters at all pl
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