作者查詢 / timling
作者 timling 在 PTT 全部看板的留言(推文), 共226則
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1F推:n = 1 C^4_1 + C^4_2 = 1006/16 14:40
2F→:n = 2 C^4_1 + C^4_2 + C^4_3 = 1406/16 14:41
3F→:n = 3 C^4_1 + C^4_2 + C^4_3 + C^4_4 = 1506/16 14:42
4F推:首先需要先假設大家一進電梯就按樓層扭了06/16 14:47
5F→:再來要假設電梯從一樓到五樓有二樓三樓四樓可以停06/16 14:47
6F→:說錯了是有二樓三樓四樓五樓可以停06/16 14:48
7F推:然後 C^4_i 就是停 i 次的停靠方式數06/16 14:52
2F推:在後門土地公廟附近也聽得到05/19 14:30
1F推:http://tinyurl.com/6by4d36 三官大帝03/17 13:10
4F推:http://tinyurl.com/4bbqhbs03/17 18:29
5F推:http://tinyurl.com/4r86u9o03/17 18:31
501F→: 簽到02/08 19:01
501F→: 簽到02/08 19:01
501F→: 簽到02/08 19:01
606F→: 簽到02/08 18:53
13F推:189集柯南中槍後住院超過十天12/29 21:42
14F→:字幕有出現十日後12/29 21:43
558F推:http://www.ustream.tv/channel/wl2 沒斷12/08 18:31
4F推:阿他是誰阿10/11 09:21