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[2023-10-06] sumin #300#330
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Oct 12, 2023
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구현문제를 깔끔하게 잘 풀이해내신 것 같습니다! 특히 블록을 내리는 로직을 재귀를 활용해서 깔끔하게 정의하신 점이 인상깊었던 것 같아요! 고려해보면 좋을 점도 코멘트 달아두었습니다. 고생하셨습니다 수민님!
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이것 조차 재귀로 구현하시다니.... 훨씬 직관적이고 좋은 것 같네요!
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매번 제거되는 블록을 '.'로 기록하고 세는 방법도 좋은 것 같습니다! 어차피 remove블록을 관리할 거라면, 제거할 블록을 담을 때 remove를 set으로 정의해서 담아두는 방식도 고려해보면 좋을 것 같아요. 그러면 이 N^2 로직을 안사용할 수 있을 것 같습니다.
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PR Summary
풀이시간: 35분
<input>
m: 판의 높이(2 ≦ n, m ≦ 30)
n: 판의 폭(2 ≦ n, m ≦ 30)
board: 판의 배치 정보(대문자 A-Z)
<solution>
문제에서 주어진대로 구현한다.
더 이상 제거되는 블록이 없을 때까지 다음의 과정을 반복
<시간복잡도>
O(NM) + O(NM) + O(NM) = O(3NM) =
O(NM)을 더 이상 블록이 제거될 수 없을 때까지 반복