Puzzleup 2011 (07) Close and Different - 拼圖
By Charlotte
at 2011-09-08T20:41
at 2011-09-08T20:41
Table of Contents
題目網址: www.puzzleup.com/2011/puzzle/?225
加分時限: 9/8 7PM - 9/13 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)
◆Close and Different
Use all the nine numerals from 1 to 9 once and form four numbers (A, B, C, D)
such that divisions A/B and C/D produce different but closest results. (ie.
Absolute value of A/B-C/D should be minimum.)
Please enter the four numbers from the smallest to the largest, with commas
between them.
Example: If the numbers were 12/789, 6/345, your answer should read
6,12,345,789
使用全部 1 到 9 的阿拉伯數字各一次形成四個數 A,B,C,D 使得 A/B 和 C/D 得到不同
但最接近的答案。(即 A/B-C/D 的絕對值要最小且非零。)
答案格式為四個數字由小排到大,以逗號分隔。
例如若答案是 12/789、6/345 的話,則輸入 6,12,345,789。
--
programUp 開始了 (無誤
另外「且非零」三個字是我補上去的
(其實很容易湊出相減是 0 的答案 像是 9/273-18/546 等等
但題意顯然是要我們找非零的差值)
--
LPH [acronym]
= Let Program Heal us
-- New Uncyclopedian Dictionary, Minmei Publishing Co.
--
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