수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 계단

로보카폴리 2019.12.19 08:28 조회 837

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

당신은 총 10개의 계단을 올라가야 한다. 한번에 1개 또는 2개 를 올라갈 수 있고, 마지막에 도착하기 전에 최소 두번은 두개의 계단을 한번에 내려가야 한다. 지하 계단은 없다고 가정할때, 계단을 올라가는 경우의 수를 구하시오.

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21세기오일러 Lv.11 2020.01.06 00:24

올라가는데 왜 내려와야하나요?

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- 로보카폴리 Lv.11 2020.01.06 04:50
  
  동전을 주워야 되요...?
  
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