Puzzleup 2011 (16) Ordered Codes - 拼圖
By Linda
at 2011-11-09T22:44
at 2011-11-09T22:44
Table of Contents
題目網址: www.puzzleup.com/2011/puzzle/?234
加分時限: 11/10 7PM - 11/15 7PM
答對可得基本分100分。答案可上傳5次,每改1次答案從基本分扣20分。
比賽期間內可隨時上傳答案,加分時限內答對第n天加(6-n)分
另依題目的難易有額外加分(如有80%的人這題答錯,答對者加80分)
◆Ordered Codes
You will generate codes using the 26 letters of the English alphabet. There
is a single condition: The sum of the alphabetical order value of the letters
(A=1, B=2, C=3, …, Z=26) used in a code can at most be 26. Then the codes
generated on this condition are ordered alphabetically. What is the code in
the middle of the sequence?
If the same question was asked for a maximum total value of 3, instead of 26;
the answer would be AB. (A, AA, AAA, AB, B, BA, C).
你要以 26 個英文字母產生字串。唯一的條件是:將這些字串以數字表示後
(A=1, B=2, C=3, …, Z=26) 相加的和至多是 26。將產生的字串以字典順序排序。
問正中間的那個字串是什麼?
如果題目把和至多為 26 改成至多為 3,則答案為 AB。
(產生的字串依序為 A, AA, AAA, AB, B, BA, C)
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是個排列組合題...才怪, 又是個說破不值三兩銀的題目XD 不過我喜歡這題
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1985/01/12 三嶋鳴海 1989/02/22 優希堂悟 1990/02/22 冬川こころ 1993/07/05 小町
つぐみ 歡迎來到 1994/05/21 高江ミュウ 1997/03/24 守野いづみ 1997/03/24 伊野瀬
チサト 1998/06/18 守野くるみ 打越鋼太郎的 1999/10/19 楠田ゆに 2000/02/15 樋口遙
2002/12/17 八神ココ 2011/01/11 HAL18於朱倉岳墜機 ∞與∫的世界 2011/04/02 茜崎空
啟動 2012/05/21 第貮日蝕計畫預定 2017/05/01~07 LeMU崩壞 2019/04/01~07 某大學合宿
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at 2011-11-12T11:52
at 2011-11-12T11:52
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at 2011-11-16T05:59
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at 2011-11-20T07:53
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