[20251125] BOJ / G5 / 숨바꼭질 3 / 강신지 #1510
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🧷 문제 링크
https://www.acmicpc.net/problem/13549
🧭 풀이 시간
50분
👀 체감 난이도
✏️ 문제 설명
수빈이가 동생의 위치까지 도달하는 가장 빠른 시각을 구하라.
수빈이의 위치가 x일 때, 아래 방식으로 이동할 수 있다.
🔍 풀이 방법
다익스트라로 풀어야 하나 했는데 가중치가 0과 1뿐이면 0-1 BFS를 쓰는 게 훨 빠르다고 알고 있어서 그거 썼다.
deque 써서 0초 걸리는 경우는 addFirst하고 1초 걸리는 경우는 addLast 하면 된다.
⏳ 회고