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[wlghsp] WEEK 01 Solutions - #2921
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🤖 AI 리뷰(알고리즘 패턴, 시간/공간 복잡도, 학습 현황) 결과는 Checks 탭에서 볼 수 있어요. |
201411108
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Nov 13, 2026
| class Solution: | ||
| def topKFrequent(self, nums: list[int], k: int) -> list[int]: | ||
| # 1. 빈도 계산: O(N) | ||
| count = Counter(nums) |
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👍 빈도를 계산해주는 Counter가 있군요. 배워갑니다. 감사합니다!
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Counter가 있지만 너무 만들어주는 느낌이라 잘 안 쓸려고 하는데 깔끔해 보여서 썼습니다. 리뷰 감사합니다! 😊
heesun-task
approved these changes
Nov 13, 2026
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| # 2. 빈도를 인덱스로 사용하는 버킷 배열 생성: O(N) | ||
| # 최대 빈도는 len(nums)이므로 크기는 len(nums) + 1 | ||
| buckets = [[] for _ in range(len(nums) + 1)] |
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저도 문제봤을땐 처음푸신 방법 비슷하게 생각했는데 더 효율적인 방법도 있었네요. 참고하겠습니다.
전체적으로 풀이와 파일정리도 모두 깔끔하고 코멘트도 필요한곳에 적절히 주신 것 같습니다. 수고많으셨습니다
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처음에는 heap으로 풀이했는데 O(N)으로 가능한 버킷 정렬 풀이가 있길래 한번 학습해보고 있습니다. 리뷰 감사합니다!😊
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