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🧷 문제 링크
https://school.programmers.co.kr/learn/courses/30/lessons/68646?language=java
🧭 풀이 시간
40분
👀 체감 난이도
✏️ 문제 설명
일렬로 나열된 n개의 풍선이 있을 때, 임의의 인접한 두 풍선 고른 뒤, 두 풍선 중 하나 터트림
인접한 두 풍선 중 번호가 더 작은 풍선을 터트리는 행위는 최대 1번 가능함
풍선들을 1개만 남을 때까지 터트렸을 때, 최후까지 남기는 것이 가능한 풍선의 개수 구하기
🔍 풀이 방법
그냥 구현
오른쪽부터 i까지 왔을 때의 최솟값, 왼쪽부터 i까지 왔을 때의 최솟값을 배열에 저장해두고,
left[i-1], right[i+1] 모두 a[i] 값보다 작으면 불가 그외는 가능
⏳ 회고
인덱스를 잘보자