ㄧ題排列組合 - 拼圖
By Mason
at 2007-02-13T13:14
at 2007-02-13T13:14
Table of Contents
排列問題,6個人排座位,A 靠窗戶,B 靠走廊,共有幾種坐法?
AB
OO
OO
OO
圖示應該是這樣吧!
不過該怎麼算哩? 有人可以幫忙解嗎?謝謝~
--
AB
OO
OO
OO
圖示應該是這樣吧!
不過該怎麼算哩? 有人可以幫忙解嗎?謝謝~
--
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拼圖
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