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[khakaa] Week 01 Solutions - #2931
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🤖 AI 리뷰(알고리즘 패턴, 시간/공간 복잡도, 학습 현황) 결과는 Checks 탭에서 볼 수 있어요. |
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parkhojeong
approved these changes
Nov 15, 2026
| var containsDuplicate = function (nums) { | ||
| const numSet = new Set(nums); | ||
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| return nums.length !== Array.from(numSet).length; |
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numSet.size() 를 사용하셔도 될 거 같습니다.
| } | ||
| } | ||
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| const descFrequent = [...map].sort((a, b) => b[1] - a[1]); |
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{빈도: [num1, num2, ...] } 형태의 자료구조를 이용하면 O(n)으로 가능하니 풀어보셔도 좋을 거 같습니다.
| * @return {number[]} | ||
| */ | ||
| var topKFrequent = function (nums, k) { | ||
| const map = new Map(); |
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변수명은 어떤 용도인지 알 수 있으면 좋을 거 같습니다.
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