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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [경우의 수] 사회시간에 배운 카르스트 지형
니유토갬
2020.06.24 21:44
조회 559
니유토갬은 방금 사회시간에, 카르스트 지형에 대해 배우고, 동굴 내부에는 보통 석순, 종유석, 석주 등이 발달되어 있다고 배웠다.
니유토갬은 이말을 듣고, 당장 동굴로 향했다.
A-DONGUL에서는 (원래는 그러면 안 돼지만,) 석순의 조각 4개를 떼어서 가져오고,
B-DONGUL에서는 종유석의 조각 3개를 떼어서 가져오고,
C-DONGUL에서는 석주의 조각 2개를 떼어서 가져왔다.
집에 와서 그 조각들을 분류하기 위해, 먼저 석순, 종유석, 석주를 각각 같은 종류는 같은 색으로 색칠을 했다.
또, 종류안에서도, 그 번호를 부여해서, (예: 석순1, 석순2, 석순3, 석순4 등..) 구분했다.
니유토갬은 종유석을 가장 좋아하고, 석순을 그 다음으로 좋아하기 때문에,
종유석은 종유석끼리 서로 붙어있게(진짜 풀로 붙인다는 뜻이 아니라,, 나열할 때, 000이렇게 둔다는 의미입니다!) 맨 앞에 두고, 석순은 석순끼리 붙어있게,(이것은 어디에 있든 상관 없습니다!) 할 때, 배열할 수 있는 경우의 수를 구해보세요!
+번호를 부여했기 때문에, 같은 종류에서도, 다 다릅니다!
++풀이 필수입니다!
+++추가문제: 만약 배열하는 순서에 조건이 없다면?..
(만약 그냥 아무렇게나 배열한다면 경우의 수가 얼마 나올지입니다!)
풀이와 추가문제까지 다 풀어주세요!
문제에 문제가 있으면 비댓으로 알려주세요!
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집고양이
Lv.8
2020.06.25 01:00
-
니유토갬
Lv.7
2020.06.25 06:03
저런 사람은 신고 해야죠.... (근데 참고로 저건 실제 있었던 일이 아니라...)
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