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マヨイドーロ
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| c=b=1 | |
| ((gets.to_i+1)/2).times{c,b=c*2+b,c+b} | |
| p c-1 |
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「結城浩の「マヨイドーロ問題」」でコードゴルフしてみました。51バイト。
問題: https://codeiq.jp/q/2549