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Function: model

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Function: get_footer

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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] [조합] 빨리 좀 알려주지..
△π 2020.08.05 18:30 조회 539
문제 푼 사람 1명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

삼각파이는 친구와 약속장소에서 만나기로 했다. 삼각파이의 집이 (0,0)에 있을 때, 약속 장소는 (6,6)에 있었다. 그래서 삼각파이는 매우 수학적으로 그곳을 향해 최단거리로 가기로 했다. 그렇게 가던 중... 인생에 도움이 안되는 친구가 갑자기 약속장소가 (6,0)으로 바뀌었다고 했다. 그래서 삼각파이는 전화를 받은 위치에서 최단거리로 다시 (6,0)을 향해 가기로 했다. 이 때, 삼각파이가 약속장소로 향하는 경로의 경우의 수를 구하여라.(단, 삼각파이가 (정수,정수)위치에 있을 때 친구에게서 전화가 걸려왔다.)

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