[理工] 103台科資工 數學
題目大意是
有19個學生參加夏令營
每天晚上圍著圓桌吃飯
而每天必須跟不一樣的人坐在隔壁
請問根據這種座位方法
可以吃幾天的飯
我以為是排列組合的問題
但問同學他說是complete graph K19的問題
有人可以指點一下嗎?
感激不盡
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