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Description The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which flo 阅读全文
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Description A number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are to calcu 阅读全文
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Description Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges' favorite time is guessing the 阅读全文