[prograsshopper] week 7 solutions #1891
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DaleSeo
approved these changes
Sep 6, 2025
| class Solution: | ||
| def lengthOfLongestSubstring(self, s: str) -> int: | ||
| # sol 1 | ||
| # time complexity: O(n^2) / memory complexity: O(n) |
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주석으로 시간/공간 복잡도를 잘 명시해주셔서 이해에 도움이 되네요!
| class Solution: | ||
| def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]: | ||
| # time complexity: O(n) / memory complexity: O(n) | ||
| stack = [] |
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스택을 활용한 방식도 좋지만, 추가 메모리 없이 in-place로 처리하는 방법도 많이 사용되니 참고 바랍니다.
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