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수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [조합] 난이도
infinitepi 2020.07.14 17:55 조회 550
문제 푼 사람 1명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

어떤 문제의 난이도를 a,b,c,d,e를 사전식 배열로 해서 정하려고 한다.

abcde가 가장 쉽고, edcbe가 가장 어렵다.

이때, 다음을 구하여라.

(1) 100번째 쉬운 난이도

(2) cdeab는 몇 번째 쉬운 난이도인가?

이 문제 어떠셨나요?

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    다시 도전
    별 Lv.4 2020.07.15 05:09 비밀댓글
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    해결
    mwryan Lv.6 2020.07.15 18:18 비밀댓글
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