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🧷 문제 링크
https://www.acmicpc.net/problem/9935
🧭 풀이 시간
40분
👀 체감 난이도
✏️ 문제 설명
🔍 풀이 방법
⏳ 회고
replaceAll로 풀었는데 메모리 초과가 났다.replaceAll은 내부적으로 새로운 문자열을 계속 만들어야 하므로 속도도 느리고, 메모리 초과가 난다고 한다.