[20250730] BOJ / G4 / 가장 긴 증가하는 부분 수열 4 / 이준희 #574
Merged
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🧷 문제 링크
https://www.acmicpc.net/problem/14002
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
수열 중 LIS 를 구하고 그 수열 자체도 출력하는 문제입니다.
🔍 풀이 방법
dp를 사용해서 LIS를 구하고 그 때마다 배열을 하나 더 사용해서 이전 index를 저장했습니다.
마지막에 스택을 이용한 역추적으로 풀이했습니다.
⏳ 회고
요새 역추적 문제를 많이 만났던 것 같아서 수월하게 푼 것 같습니다.