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DescriptionYou have an arraya[1], a[2], ..., a[n], containing distinct integers from1ton. Your task is to sort this array in increasing order with the... 阅读全文
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DescriptionYou have a strings = s1s2...s|s|, where|s|is the length of strings, andsiitsi-th character.Let's introduce several definitions:A substrings... 阅读全文
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You have decided to start up a new social networking company. Other existing popular social networksalready have billions of users, so the only way to... 阅读全文
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DescriptionLet us consider sets of positive integers less than or equal ton. Note that all elements of a set are different. Also note that the order o... 阅读全文
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DescriptionAn ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from smalle... 阅读全文