[20260326] BOJ / P5 / LCS 4 / 권혁준#2046
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ShinHeeEul merged 1 commit intomainfrom Mar 26, 2026
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🧷 문제 링크
https://www.acmicpc.net/problem/13711
🧭 풀이 시간
10분
👀 체감 난이도
✏️ 문제 설명
1부터 N까지의 수가 하나씩 포함된 두 수열 A, B의 최장 공통 부분 수열(LCS)의 길이를 구해보자.
🔍 풀이 방법
두 수열을 왼쪽, 오른쪽에 각각 나열하면 전깃줄 문제와 똑같아진다.
세그먼트 트리로 풀었다.
⏳ 회고
이분 탐색으로도 풀어봐야겠다