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Description Colossal! — exclaimed Hawk-nose. — A programmer! That's exactly what we are looking for. Arkadi and Boris Strugatsky. Monday starts on Sat 阅读全文
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NN is an experienced internet user and that means he spends a lot of time on the social media. Once he found the following image on the Net, which ask 阅读全文
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A positive integer xx is called a power of two if it can be represented as x=2y, where y is a non-negative integer. So, the powers of two are 1,2,4,8, 阅读全文
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7454 Parentheses A bracket is a punctuation mark, which is used in matched pairs, usually used within articles or programs. Brackets include round bra 阅读全文