[sonjh1217] WEEK 01 solutions#1985
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sonjh1217 merged 2 commits intoDaleStudy:mainfrom Nov 17, 2025
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안녕하세요! 문제는 푸시는 대로 확인해보고 리뷰 남기겠습니다. |
ZetBe
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Nov 12, 2025
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| func containsDuplicate(_ nums: [Int]) -> Bool { | ||
| var numSet = Set<Int>() | ||
| for num in nums { | ||
| if numSet.contains(num) { | ||
| return true | ||
| } | ||
| numSet.insert(num) | ||
| } | ||
|
|
||
| return false |
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swift에서 Set을 사용하였군요
저는 조금 다른 방식으로 풀었는데
Set같은 자료구조가 아닌 주어진 리스트를 정렬 후,
1번 인덱스 부터 현재 인덱스랑 이전 인덱스 비교하며 중복이면 True를 리턴하도록 작성했습니다.
하지만 정렬 자체가 시간 부분에서 O(n*logn)이라 추천하지는 않습니다
코드 리뷰가 처음이라 메일이 계속 왔을텐데.. 다음부터는 제대로 리뷰하겠습니다..
TonyKim9401
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Nov 16, 2025
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TonyKim9401
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1주차 문제 풀이 고생하셨습니다!
온보딩 및 스터디 적응 하시는데 앞으로 조금 더 힘내주시고 앞으로의 15주간 여정 응원합니다.
2주차 문제 풀이도 파이팅입니다!
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