[問題] 求解 數學題
玩遊戲(spot it)遇到的
有55張牌,每張牌上面有八種不同的圖案
從中任選兩張牌,這兩張牌上面剛好都只會有一種相同的圖案
問:這遊戲至少需要幾種圖案
據說答案是57 但不知道為什麼...
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.43.115.189
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03/24 01:24, , 1F
03/24 01:24, 1F
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03/24 01:30, , 2F
03/24 01:30, 2F
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03/24 01:33, , 3F
03/24 01:33, 3F
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03/24 01:34, , 4F
03/24 01:34, 4F
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03/24 01:34, , 5F
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03/24 01:35, , 6F
03/24 01:35, 6F
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03/24 01:38, , 7F
03/24 01:38, 7F
第一次看到 這式子怎麼來的阿ww
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03/24 01:39, , 8F
03/24 01:39, 8F
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03/24 01:40, , 9F
03/24 01:40, 9F
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03/24 01:49, , 10F
03/24 01:49, 10F
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03/24 01:49, , 11F
03/24 01:49, 11F
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03/24 01:50, , 12F
03/24 01:50, 12F
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03/24 01:51, , 13F
03/24 01:51, 13F
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03/24 01:53, , 14F
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03/24 01:53, , 15F
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03/24 01:54, , 16F
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03/24 01:55, , 17F
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03/24 01:55, , 18F
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03/24 01:56, , 19F
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03/24 01:57, , 20F
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03/24 01:57, , 21F
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03/24 01:59, , 22F
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03/24 01:59, , 23F
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03/24 02:05, , 24F
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03/24 02:10, , 25F
03/24 02:10, 25F
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03/24 02:15, , 26F
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03/24 02:17, , 27F
03/24 02:17, 27F
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推
03/24 02:42, , 28F
03/24 02:42, 28F
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03/24 02:42, , 29F
03/24 02:42, 29F
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03/24 02:43, , 30F
03/24 02:43, 30F
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03/24 02:44, , 31F
03/24 02:44, 31F
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03/24 02:53, , 32F
03/24 02:53, 32F
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03/24 02:53, , 33F
03/24 02:53, 33F
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03/24 02:54, , 34F
03/24 02:54, 34F
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我。看。懂。了。
開心睡覺去^^
※ 編輯: noyarc 來自: 114.43.115.189 (03/24 03:16)
推
03/24 11:28, , 35F
03/24 11:28, 35F