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Function: driver

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Function: _error_handler

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Function: model

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getFloatingMyInfo

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Line: 559
Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

수학동아 - 폴리매스
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[창의 퍼즐] [벡터] 벌들의 이동
△π 2020.09.03 18:33 조회 532
문제 푼 사람 0명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

가로로 2020칸, 세로로 2020칸이 있는 바둑판의 각 칸에 벌이 한마리 이하로 있다고 하자. 모든 벌이 일시에 자리를 이동하되 여전히 각 칸에 한마리 이하가 되도록 이동하였다고 하자. 어떤 벌 B가 어떤 칸에서 다른 칸으로 이동할 때, 출발한 칸의 중심에서 도착한 칸의 중심까지를 나타내는 벡터를 벌 B의 이동벡터라 하자. 이때, 모든 가능한 시작 상황과 도착 상황에 대해 벌들의 이동벡터의 합의 길이의 최댓값을 구하여라.

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