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🧷 문제 링크
캠프 준비
🧭 풀이 시간
15분
👀 체감 난이도
✏️ 문제 설명
주어진 문제를 2개 이상 뽑아서 전체 난이도 합이
L이상R이하이며 가장 어려운 문제와 가장 쉬운 문제의 난이도 차가X이상인 경우의 수🔍 풀이 방법
정렬 + 조합
문제들을 먼저 정렬해두면 값 확인할 때
depth - 1과0끼리만 비교하면 됨※ 일일이 조합 구할 필요 없이
dfs진행하면서 바로바로 값 확인할 수 있음⏳ 회고
questions의 인덱스는selected의 값임을 유념하자