[20250204] BOJ / 플레3 / A Journey to Greece / 권혁준#27
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ShinHeeEul merged 1 commit intomainfrom Feb 4, 2025
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🧷 문제 링크
https://www.acmicpc.net/problem/10849
🧭 풀이 시간
50분
👀 체감 난이도
✏️ 문제 설명
정점$N$ 개인 그래프에서, 제한시간 내에 시작점 $0$ 으로부터 특정 지점 $P$ 개를 모두 들렀다가 다시 $0$ 으로 돌아오는 게 가능한지 판별$T$ 소모할 수 있음
중간에 딱 한 번, 택시를 타고 아무 곳이나 갈 수 있는 대신 시간
🔍 풀이 방법
다익스트라$P$ 번 돌려서 $P$ 개 정점만으로 이루어진 그래프를 새로 만들기
이 그래프에서 TSP 돌리기
택시를 탄 경우랑 타지 않은 경우 두 가지 DP를 모두 계산해줘야 함.
⏳ 회고
옛날에 못 풀었던 문제인데, 성장한 느낌이 든다.