[20250204] BOJ / 플래3 / 트리와 쿼리 2 / 권혁준 #36
Merged
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🧷 문제 링크
https://www.acmicpc.net/problem/13511
🧭 풀이 시간
25분
👀 체감 난이도
✏️ 문제 설명
트리에서 특정 경로의 비용과, 그 경로 상의 k번째 점 구하기
🔍 풀이 방법
희소 배열로$2^i$ 번째 조상의 번호와 그 조상까지의 거리를 구해놓기
⏳ 회고
함수를 많이 사용했는데, 이렇게 구현하니까 좀 더 부담없이 짤 수 있는 것 같다