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Problem Miracle Corporations has a number of system services running in a distributed computer system which is a prime target for hackers. The system 阅读全文
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Problem Given a set of pattern strings, and a text, you have to find, if any of the pattern is a substring of the text. If any of the pattern string c 阅读全文
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Problem strcmp() is a library function in C/C++ which compares two strings. It takes two strings as input parameter and decides which one is lexicogra 阅读全文
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Neal is very curious about combinatorial problems, and now here comes a problem about words. Knowing that Ray has a photographic memory and this may n 阅读全文