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Function: driver
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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Function: initiateCache
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
깊이 고민해볼 수 있는 수학 문제를 내는 곳입니다
집합 A={1,2,3,4,........n} 이다. A의 부분집합을 구하는데, k개의 연속하는 수가 존재하지 않게 부분집합을 뽑는 가짓수를 f(n,k)라고 하자
예를 들어서 f(5,2}를 구한다고 가정해보자, {1,2,3,4,5}의 부분집합중 {1,3,5}는 포함시켜야 하지만, {1,2,5}는 1, 2가 연속하므로 포함시키면 인된다.
(1) f(11,4)와 f(12,5)를 각각 구하여라
(2) f(n,k)의 점화식을 n과 k를 사용하여서 나타내어라.
(문제 하나당 해결 1개)
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△π
Lv.9
2020.12.08 02:50
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알래스카불곰
Lv.7
2020.12.11 20:31
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