杭電oj2018

母牛的故事 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 102379    Accepted Submission(s): 50107 Problem Description 有一頭母牛，它每一年年初生一頭小母牛。每頭小母牛從第四個年

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