
[理工] 104成大計組 和 遞迴

請問第四題的(1)要求甚麼呀?
因為我真的看不懂他要甚麼...
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http://i.imgur.com/KEVFaCC.jpg

像這種遞迴只能找規則還是有甚麼技
巧?
遇到這種 幾乎都快要放掉了...
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