題目網址: http://www.puzzleup.com/2018/
http://www.puzzleup.com/2018/puzzle/?3
答題時限: 8月15日7PM-比賽結束(約12月12日)
加分時限: 8月15日7PM-8月21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。
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)
◆CARDS
You have a deck of 10 black cards. You will add at least one and at most five
more cards. Each of the new cards can be red, yellow or blue. How many
different color sequences can you create after adding the new cards?
Example: If you could add only one new card, the answer would be 33.
你有一副牌由十張黑色牌組成。你要加入至少一張至多五張牌。每張新牌的顏色可以是紅
色、黃色、或藍色。依此法加入新牌總共能造出幾種不同的顏色順序?
範例:如果你只能加入一張牌的話,答案會是33。