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传送门:http://poj.org/problem?id=2785 Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute ho 阅读全文
摘要:
One beautiful July morning a terrible thing happened in Mainframe: a mean virus Megabyte somehow got access to the memory of his not less mean sister 阅读全文
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Petya recieved a gift of a string s with length up to 105 characters for his birthday. He took two more empty strings t and u and decided to play a ga 阅读全文