[中譯] Puzzleup 2016 (17) Seven

看板puzzle (益智遊戲 - 數獨,拼圖,推理,西洋棋)作者LPH66 (アルターエゴ)時間9年前 (2016/11/17 04:49)推噓2(2推 0噓 1→)

留言3則, 3人參與討論串1/1

題目網址: http://www.puzzleup.com/2016/ http://www.puzzleup.com/2016/puzzle/?17 答題時限: 11月17日７ＰＭ－比賽結束（約12月14日）加分時限: 11月17日７ＰＭ－11月23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）　　 ◆SEVEN There is a number with digits appearing at most twice and all the numbers formed by adjacent two digits are divisible by 7. What can be the maximum value for this number? Example:63563 is such a number (63, 35, 56 and 63 are divisible by 7) but it is not the maximum. 有此一數，其每個數字至多出現兩次，且所有相鄰兩位數所形成的數皆可被 7 整除。問此數最大為何？例: 63563 為符合條件的一數 (63、35、56、63 皆可被 7 整除)，但並非最大。 -- 'You've sort of made up for it tonight,' said Harry. 'Getting the sword. Finishing the Horcrux. Saving my life.' 'That makes me sound a lot cooler then I was,' Ron mumbled. 'Stuff like that always sounds cooler then it really was,' said Harry. 'I've been trying to tell you that for years.' -- Harry Potter and the Deathly Hollows, P.308 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.30.32 ※ 文章網址: https://www.ptt.cc/bbs/puzzle/M.1479329370.A.C06.html