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quicksum Given a string of digits, find the minimum number of additions required for the string to equal some target number. Each addition is the equi 阅读全文
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Given a graph (V,E) where V is a set of nodes and E is a set of arcs in VxV, and an ordering on the elements in V, then the bandwidth of a node v is d 阅读全文
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You have been employed by the organisers of a Super Krypton Factor Contest in which contestants have very high mental and physical abilities. In one s 阅读全文
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A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of numbers in two adja 阅读全文