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Description Description Company A has N employees, this company has lots of departments around the country. The employees who belong to different depa 阅读全文
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Description Description The company have n(n<=100) long cables(the length is not necessarily the same),we assume that the length of every long cable i 阅读全文
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Description Description Children are taught to add multi-digit numbers from right-to-left one digit at a time. Many find the "carry" operation - in wh 阅读全文
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Description Description Problem C: Jolly Jumpers A sequence of n > 0 integers is called a jolly jumper if the absolute values of the difference betwee 阅读全文