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수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] 안녕히, 그리고 물고기는 고마웠어요
원파
2021.01.25 08:51
조회 356
'안녕히, 그리고 물고기는 고마웠어요'
지구를 떠나는 돌고래 X마리가 있다.
각 돌고래는 음을 Y가지 낼 수 있으며, 각 돌고래는 이를 모두 구분할줄 안다.
또한 박자도 고려할 수 있는데, 박자는 Z가지 낼 수 있다.
지구를 떠나는 돌고래들은 인간들에게 마지막 경고를 합창을 통해 한다.
각 돌고래는 멋대로 소리내기 때문에, 합창이라고 하기는 힘들다.
돌고래 중 음과 박자가 둘다 같은 돌고래들이 존재하면 특정 음과 박자가 강해지기 때문에, 듣기 좋지 않다.
듣기 좋은 합창을 위한 X, Y, Z의 조건을 구해라.
또, 박자 외에 음색이 W가지이고 음, 박자, 음색이 모두 같으면 안될때 X의 최솟값을 구해라.
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호박고구마
Lv.7
2021.01.26 20:04
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