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题目如下： Given a string s of zeros and ones, return the maximum score after splitting the string into two non-empty substrings (i.e. left substring and r 阅读全文
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题目如下： Given the string croakOfFrogs, which represents a combination of the string "croak" from different frogs, that is, multiple frogs can croak at t 阅读全文
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题目如下： Given the array orders, which represents the orders that customers have done in a restaurant. More specifically orders[i]=[customerNamei,tableNu 阅读全文
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题目如下： Given alphanumeric string s. (Alphanumeric string is a string consisting of lowercase English letters and digits). You have to find a permutatio 阅读全文