From 52fb4213295d2f08182102853b8424168ac43440 Mon Sep 17 00:00:00 2001 From: CHAEWON PARK Date: Mon, 2 Nov 2026 16:33:55 +0900 Subject: [PATCH 1/3] to-lower-case solution --- to-lower-case/Chaewon-Park-STUDY.py | 4 ++++ 1 file changed, 4 insertions(+) create mode 100644 to-lower-case/Chaewon-Park-STUDY.py diff --git a/to-lower-case/Chaewon-Park-STUDY.py b/to-lower-case/Chaewon-Park-STUDY.py new file mode 100644 index 0000000000..b9d87612b0 --- /dev/null +++ b/to-lower-case/Chaewon-Park-STUDY.py @@ -0,0 +1,4 @@ +class Solution: + def toLowerCase(self, s: str) -> str: + return s.lower() + From c301d65e3a5d6ea50b0397e2b0cefae5b0166a9e Mon Sep 17 00:00:00 2001 From: CHAEWON PARK Date: Mon, 2 Nov 2026 16:51:39 +0900 Subject: [PATCH 2/3] Update Chaewon-Park-STUDY.py --- to-lower-case/Chaewon-Park-STUDY.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/to-lower-case/Chaewon-Park-STUDY.py b/to-lower-case/Chaewon-Park-STUDY.py index b9d87612b0..13a0762e86 100644 --- a/to-lower-case/Chaewon-Park-STUDY.py +++ b/to-lower-case/Chaewon-Park-STUDY.py @@ -1,4 +1,6 @@ class Solution: + # Python 문자열은 immutable이라 대문자만 선택적으로 수정 불가 + # lower()를 쓰면 한번 순회하므로 가장 간단 Time O(n), Space O(n) def toLowerCase(self, s: str) -> str: return s.lower() From 8347773bddbd08ca46e1039f7d44b9f2fbb561e1 Mon Sep 17 00:00:00 2001 From: CHAEWON PARK Date: Mon, 2 Nov 2026 16:52:23 +0900 Subject: [PATCH 3/3] add complexity comment --- to-lower-case/Chaewon-Park-STUDY.py | 1 + 1 file changed, 1 insertion(+) diff --git a/to-lower-case/Chaewon-Park-STUDY.py b/to-lower-case/Chaewon-Park-STUDY.py index 13a0762e86..3c86b3842c 100644 --- a/to-lower-case/Chaewon-Park-STUDY.py +++ b/to-lower-case/Chaewon-Park-STUDY.py @@ -4,3 +4,4 @@ class Solution: def toLowerCase(self, s: str) -> str: return s.lower() +