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Function: driver
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Function: get_footer
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
우럭
2020.12.11 06:27
조회 433
총연장 105km의 고속도로가 있다.
이 고속도로는 전구간 제한속도 110km/h이하 40km/h이상이다.
이렇다면 차암~ 좋겠지만, 아쉽게도(?) 이 고속도로에는
구간 단속이 존재 한다. 각각 30km ~ 60km, 80km ~ 100km 구간에 있다.
구간 단속에서는 50km/h이상 90km/h이하로 진행해야 하며, 기존의 조건은 적용되지 않는다.
(기존의 조건 = 110km/h이하 40km/h이상)
또한, 쉼터라고 할 수 있는 시설물은 제일 처음구간인 0km를 제외하고
15km지점부터 105km지점까지 각 15km마다 존재 한다.
이때, 여기서 운전기사 라임은 가장 적은 시간으로, 단속에 단 한번도 걸리지 않는다.
고속도로에서 막힌다는 생각을 모두 배제 한다고 하고, 라임은 1시간마다 1번씩 쉬어야 하며,
한번 쉬면 10분이 걸린다고 한다. 이때, 라임의 최소 고속도로 완주 시간은?
지금 바로
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