[sonjh1217] WEEK 01 solutions #1985
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안녕하세요! 문제는 푸시는 대로 확인해보고 리뷰 남기겠습니다. |
ZetBe
reviewed
Nov 12, 2025
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+3
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+12
| 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..
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답안 제출 문제
작성자 체크 리스트
In Review로 설정해주세요.검토자 체크 리스트
Important
본인 답안 제출 뿐만 아니라 다른 분 PR 하나 이상을 반드시 검토를 해주셔야 합니다!