PuzzleUp 2009 (10) Coins - 拼圖

By Edith
at 2009-09-23T21:48
at 2009-09-23T21:48
Table of Contents
首頁:http://www.puzzleup.com/2009/?home
時限:2009/09/17(四)19:00~09/22(二)18:59
答案可上傳5次,但每改1次扣20分(基本分為100分)
在比賽期間內可隨時回答,但只有在時限內回答者有額外加分
◆Coins
某個國家中,只要最多2枚硬幣,就可以表達出1至50元的數值(1和50皆包含在內)
在這個國家中,所有種類的硬幣幣值,其總和的最小可能值為何?
假設題目要求的是可以表達1~8元的數值
硬幣最小總和為8元,分別是1元, 3元, 和4元
1元 = 1個1元硬幣
2元 = 2個1元硬幣
3元 = 1個3元硬幣
4元 = 1個4元硬幣
5元 = 1個1元硬幣 + 1個4元硬幣
6元 = 2個3元硬幣
7元 = 1個3元硬幣 + 1個4元硬幣
8元 = 2個4元硬幣
--
Tags:
拼圖
All Comments

By Megan
at 2009-09-28T21:43
at 2009-09-28T21:43

By Jake
at 2009-09-30T02:18
at 2009-09-30T02:18

By Zenobia
at 2009-10-04T08:50
at 2009-10-04T08:50

By Quanna
at 2009-10-06T19:19
at 2009-10-06T19:19

By Lauren
at 2009-10-09T19:30
at 2009-10-09T19:30

By Irma
at 2009-10-09T22:14
at 2009-10-09T22:14

By Todd Johnson
at 2009-10-10T08:20
at 2009-10-10T08:20

By Donna
at 2009-10-12T10:31
at 2009-10-12T10:31

By Olivia
at 2009-10-13T03:24
at 2009-10-13T03:24

By Edward Lewis
at 2009-10-17T19:42
at 2009-10-17T19:42

By Candice
at 2009-10-19T12:44
at 2009-10-19T12:44

By Donna
at 2009-10-23T12:11
at 2009-10-23T12:11

By Una
at 2009-10-27T11:35
at 2009-10-27T11:35

By Callum
at 2009-10-29T02:47
at 2009-10-29T02:47

By Isla
at 2009-11-01T20:31
at 2009-11-01T20:31

By Liam
at 2009-11-06T04:19
at 2009-11-06T04:19

By Oliver
at 2009-11-09T06:57
at 2009-11-09T06:57

By Steve
at 2009-11-10T07:29
at 2009-11-10T07:29

By Thomas
at 2009-11-11T07:22
at 2009-11-11T07:22

By Dinah
at 2009-11-11T14:52
at 2009-11-11T14:52

By Daph Bay
at 2009-11-13T10:27
at 2009-11-13T10:27

By Belly
at 2009-11-16T10:14
at 2009-11-16T10:14

By Ophelia
at 2009-11-17T19:46
at 2009-11-17T19:46

By Cara
at 2009-11-21T16:51
at 2009-11-21T16:51

By Lily
at 2009-11-26T03:55
at 2009-11-26T03:55

By Harry
at 2009-11-27T19:38
at 2009-11-27T19:38
兩枚不重覆、兩枚相同、只有一枚 => n≧9 應該這樣?!

By Hamiltion
at 2009-12-02T04:22
at 2009-12-02T04:22

By Eden
at 2009-12-02T19:22
at 2009-12-02T19:22

By Susan
at 2009-12-05T18:04
at 2009-12-05T18:04

By Mary
at 2009-12-06T01:27
at 2009-12-06T01:27

By Adele
at 2009-12-10T11:25
at 2009-12-10T11:25

By Dora
at 2009-12-12T08:13
at 2009-12-12T08:13

By Kama
at 2009-12-13T17:08
at 2009-12-13T17:08

By Tracy
at 2009-12-16T12:22
at 2009-12-16T12:22

By Ula
at 2009-12-20T10:40
at 2009-12-20T10:40

By Bennie
at 2009-12-24T15:50
at 2009-12-24T15:50

By Necoo
at 2009-12-27T13:19
at 2009-12-27T13:19

By Adele
at 2009-12-29T05:25
at 2009-12-29T05:25

By Iris
at 2010-01-01T20:22
at 2010-01-01T20:22

By Callum
at 2010-01-04T20:35
at 2010-01-04T20:35
也許數列上你捨棄了某個數,會讓之後一個更大的數產生需求
而一個25可是輸給三個8的,盡可能減少大數才是正途 :)

By Adele
at 2010-01-06T17:38
at 2010-01-06T17:38
就算想取超過15種也很難吧...難道你們目前的答案有超過嗎

By Delia
at 2010-01-09T20:11
at 2010-01-09T20:11

By Xanthe
at 2010-01-13T00:11
at 2010-01-13T00:11

By Dorothy
at 2010-01-13T05:10
at 2010-01-13T05:10

By Zenobia
at 2010-01-17T15:17
at 2010-01-17T15:17

By Megan
at 2010-01-20T09:32
at 2010-01-20T09:32

By Yuri
at 2010-01-24T15:32
at 2010-01-24T15:32

By Carolina Franco
at 2010-01-28T19:36
at 2010-01-28T19:36

By Susan
at 2010-01-30T18:41
at 2010-01-30T18:41

By Quintina
at 2010-02-04T02:17
at 2010-02-04T02:17

By Victoria
at 2010-02-06T06:21
at 2010-02-06T06:21

By Hedwig
at 2010-02-08T16:35
at 2010-02-08T16:35

By Kelly
at 2010-02-11T04:15
at 2010-02-11T04:15

By Rosalind
at 2010-02-11T18:11
at 2010-02-11T18:11

By Delia
at 2010-02-16T04:53
at 2010-02-16T04:53

By Audriana
at 2010-02-16T19:00
at 2010-02-16T19:00

By Audriana
at 2010-02-21T05:16
at 2010-02-21T05:16

By Freda
at 2010-02-21T09:02
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By Mia
at 2010-02-23T10:46
at 2010-02-23T10:46

By Emma
at 2010-02-25T08:12
at 2010-02-25T08:12

By Odelette
at 2010-02-27T09:12
at 2010-02-27T09:12

By Dinah
at 2010-03-01T23:13
at 2010-03-01T23:13

By Kelly
at 2010-03-02T01:17
at 2010-03-02T01:17

By Caroline
at 2010-03-05T07:24
at 2010-03-05T07:24
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