题目网址: http://www.puzzleup.com/2016/ http://www.puzzleup.com/2016/puzzle/?10 答题时限: ９月29日７ＰＭ－比赛结束（约12月14日） 加分时限: ９月29日７ＰＭ－10月４日６：５９ＰＭ 答对可得基本分１００分。答案可上传５次，每改１次答案从基本分扣２０分。　 比赛期间内可随时上传答案，加分时限内答对第ｎ天加（６－ｎ）分　 　　 　　 另依题目的难易有额外加分（如有８０％的人这题答错，答对者加８０分）　　 ◆CUBE TRAVEL http://www.puzzleup.com/2016/img/puzzle/2016/10.jpg You will make a travel through the edges of two cubes connected by their vertices as shown in the figure. - You will start on A, and finish on B. - You can visit the vertices more than once except the finishing vertex B. - You can't pass through the edges more than once. In how many different ways can this travel be done? Note: Two travels having same edges in different order will be considered as different. 你将从上图这两个立方体在一个顶点相接的图形的边上进行移动。 - 路线从 A 开始，到 B 结束。 - 除了 B 之外的任一顶点皆可以经过多於一次。 - 任一条边不能经过多於一次。 试问如此的移动有多少种不同的走法？ 注意: 两个走法若仅是经过的边顺序不同依然视为不同走法。 ==== 是的, 2015 Q9 几乎一字不改只改图形... 然後我现在才发现我 2015 Q9 整个解错题意 (死) (虽然後来那题不算分了但... -- 'Oh, Harry, don't you see?' Hermione breathed. 'If she could have done one thing to make absolutely sure that every single person in this school will read your interview, it was banning it!' ---'Harry Potter and the order of the phoenix', P513 --

※ 发信站: 批踢踢实业坊(ptt.cc), 来自: 180.177.13.222 ※ 文章网址: https://webptt.com/cn.aspx?n=bbs/puzzle/M.1475074721.A.573.html