Puzzleup 2012 (7) Closed Regions - 拼圖
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By Caroline
at 2012-09-05T19:04
at 2012-09-05T19:04
Table of Contents
題目網址: http://www.puzzleup.com/2012/?home
http://www.puzzleup.com/2012/puzzle/?248
答題時限: 9月6日7PM-比賽結束(約12月12日)
加分時限: 9月6日7PM-9月11日6:59PM
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。
另有兩種加分: 1. 加分時限內答對。例:第N天答對,可加(6-N)分。
2. 題目越困難,加分越多。例:這題有n%的人答錯,答對者加n分。
◆Closed Regions
What is the maximum number of closed regions that can be formed by drawing a
circle, an equilateral triangle, a square, and a regular pentagon?
http://www.puzzleup.com/2012/img/puzzle/2012/07_ek1.jpg
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In the example given, there are only 15 closed regions.
畫一個圓、一個正三角形、一個正方形及一個正五邊形至多可分出幾個封閉區域?
例子中的畫法分出了 15 個封閉區域。
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All Comments
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By Anonymous
at 2012-09-06T11:45
at 2012-09-06T11:45
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By Hedda
at 2012-09-09T16:02
at 2012-09-09T16:02
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