[20251105] BOJ / G5 / 물병 / 김수연 #1322
Merged
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🧷 문제 링크
https://www.acmicpc.net/problem/1052
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
물병 N개로 K개를 넘지않는 비어있지 않은 물병을 만드려고 할 때, 상점에서 사야하는 물병의 최솟값 구하기
🔍 풀이 방법
N을 비트로 나타내서 1의 개수가 하나의 병이라고 가정
N을 1씩 더해서 비트 1의 개수가 K보다 작거나 같으면 수행 중지
⏳ 회고
비트마스킹..쩝..