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🧷 문제 링크
https://www.acmicpc.net/problem/12931
🧭 풀이 시간
15분
👀 체감 난이도
✏️ 문제 설명
모든 값이 0으로 채워져 있는 배열 A를
중 하나 수행해서 배열 B와 같게 만들기 위한 최소 연산 횟수 구하기
🔍 풀이 방법
배열 B -> A로 만들음
1 더하는 건 전부 카운트 해주고, 2 곱하는 건 최대로 필요한 경우의 수만큼만 더해줌 (시작이 0이라서 곱셈은 최대 수 만큼만)
⏳ 회고
A를 B로 만들라고 하는 건 거의 역으로 생각해야 하는 것 같다.
8월 10일꺼입니당