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[heesun-task] WEEK 01 Solutions - #2922
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🤖 AI 리뷰(알고리즘 패턴, 시간/공간 복잡도, 학습 현황) 결과는 Checks 탭에서 볼 수 있어요. |
JeonBeomGu-S
self-requested a review
November 14, 2026 05:13
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| // Loop through the array and return true if a duplicate is found | ||
| for (int num : nums) { | ||
| if (!seen.add(num)) { |
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Set의 add 함수가 boolean 값을 반환한다는 점을 이용하여 푼 점이 인상 깊었습니다.
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| // Time Complexity: O(n + u log k) | ||
| // Space Complexity: O(u + k) |
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k값은 u보다 클 수 없기 때문에 O(u) 로 표기해도 될 것 같습니다.
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답안 제출 문제
Contains Duplicate #217
Top K Frequent Elements #237
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