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[jinaSEO] WEEK 03 Solutions #2718
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There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. 틀리지 않게 잘 푸신 것 같네요. |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| function isPalindrome(s: string): boolean { | ||
| // 1. 대문자를 모두 소문자로 바꾼다. | ||
| const lower = s.toLowerCase() | ||
| // 2. 문자와 숫자가 아닌 것은 모두 제거한다. | ||
| const cleaned = lower.replace(/[^a-z0-9]/g,"") | ||
| // 3. 정리된 문자열 뒤집는다. | ||
| const reversed = cleaned.split("").reverse().join("") | ||
| // 4. 정리된 문자열과 뒤집은 문자열이 같으면true, 아니면 false | ||
| if(cleaned === reversed) { | ||
| return true | ||
| } else { | ||
| return false | ||
| } | ||
| }; |
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🏷️ 알고리즘 패턴 분석
📊 시간/공간 복잡도 분석
피드백: 입력 문자열을 한 번 순회하며 정리된 문자열을 만들고, 그 문자열의 대칭 여부를 비교한다. 두 번의 배열 접근이 필요하므로 선형 시간과 선형 추가 공간을 사용한다.
개선 제안: 현재 구현이 적절해 보입니다.