[20250227] BOJ / P5 / 한동이는 영업사원! / 신희을#190
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ShinHeeEul merged 1 commit intomainfrom Feb 27, 2025
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🧷 문제 링크
https://www.acmicpc.net/problem/8012
🧭 풀이 시간
60 분
👀 체감 난이도
✏️ 문제 설명
트리가 주어지고, 방문할 노드가 순서대로 주어진다. 순서대로 방문한다 할 때 전부 방문할 수 있는 최소 길이를 구하라.
🔍 풀이 방법
현재 위치와 목적지를 LCA하면 LCA까지의 거리가 나오므로 * 2해서 누적하자.
⏳ 회고
전에 LCA 실수도 많이 했는데, 이번엔 한번에 통과해서 기분 좋다 ㅎ 실력이 성장한 것 같다.