推 ghkckhg :太感激了! 一經解說之後才發現是唬人的題目! 03/10 17:33
※ 引述《ghkckhg (台灣自耕農代表)》之銘言：
: 繼上次遞迴之後又來一題奇怪的遞迴...
: http://imageshack.us/photo/my-images/844/0004nx.jpg/
真的去算就會發現它三項一循環
這樣後面就不用解釋了...
這種問題不要懶 如果算個幾項還沒發現什麼東西再來考慮有沒有別的可能
: 集合(中一中)
: http://imageshack.us/photo/my-images/16/0005ya.jpg/
A = {2,4,6,...,240}
B = {3,6,9,...,240}
C = {4,8,12,...,240}
要求的是 {6,12,18,...,240}
容易看出所求為 A∩B
我猜你這只是集合符號看不懂而已 @@
: 排組
: http://imageshack.us/photo/my-images/27/0006ajf.jpg/
直接土法煉鋼即可
注意算成兩種走法的路 經過時要乘以 2
１─５─18─75-159-276-433
│ │ │ │ │ │ │
１─４─13─57─84-117-157
│ │ │ || │ │ │
１─３─９＝22─27─33─40
│ │ || │ │ │ │
１─２─３─４─５─６─７
│ │ │ │ │ │ │
１─１─１─１─１─１─１
: //
: 懇請各位大大妙手回春，拯救我這迷途囧書生吧，謝謝~~
--
'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
--
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