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Problem Description The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large re 阅读全文
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A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacen 阅读全文
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Problem Description In a Lotto I have ever played, one has to select 6 numbers from the set {1,2,...,49}. A popular strategy to play Lotto - although 阅读全文
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Problem Description Given a specified total t and a list of n integers, find all distinct sums using numbers from the list that add up to t. For examp 阅读全文