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Function: require_once

수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 마6각형
아인수타인 2020.01.29 06:31 조회 838
문제 푼 사람 1명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

마방진은 다들 들어본 적 있을 것이다. 마방진은 사각형에서 가로, 세로, 대각선의 숫자의 합이 전부 똑같은 것이다. 그리고 아래 그림처럼 n칸짜리 정육각형이 있을 때, 1부터 19까지 자연수를 새겨 넣고, 빨간색, 파란색, 검은색으로 표시한 선들의 합이 전부 같으면 마6각형이라 한다.

그런데 실은 n이 1보다 큰 자연수일 때 마6각형은 딱 1개밖에 없다. 그 1가지 배열을 찾아라.

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