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Beside other services, ACM helps companies to clearly state their “corporate identity”, which includes company logo but also other signs, like tradema 阅读全文
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You are given a number of case-sensitive strings of alphabetic characters, find the largest string X, such that either X, or its inverse can be found 阅读全文
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Clairewd is a member of FBI. After several years concealing in BUPT, she intercepted some important messages and she was preparing for sending it to y 阅读全文
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It is well known that AekdyCoin is good at string problems as well as number theory problems. When given a string s, we can write down all the non-emp 阅读全文