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Description Ignatius is so lucky that he met a Martian yesterday. But he didn't know the language the Martians use. The Martian gives him a history bo 阅读全文
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Description In a k bit 2's complement number, where the bits are indexed from 0 to k-1, the weight of the most significant bit (i.e., in position k-1) 阅读全文
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Description One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For inst 阅读全文
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Description In many applications very large integers numbers are required. Some of these applications are using keys for secure transmission of data, 阅读全文
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Description There must be many A + B problems in our HDOJ , now a new one is coming. Give you two hexadecimal integers , your task is to calculate the 阅读全文
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Description Sally Jones has a dozen Voyageur silver dollars. However, only eleven of the coins are true silver dollars; one coin is counterfeit even t 阅读全文