[freemjstudio] WEEK 08 Solutions - #2806
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📊 freemjstudio 님의 학습 현황이번 주 제출 문제
누적 학습 요약
문제 풀이 현황
🤖 이 댓글은 GitHub App을 통해 자동으로 작성되었습니다. 🔢 API 사용량 (gpt-5-nano)
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🏷️ 알고리즘 패턴 분석
reverse-linked-list/freemjstudio.py
# Definition for singly-linked list.
# class ListNode:
# def __init__(self, val=0, next=None):
# self.val = val
# self.next = next
class Solution:
def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]:
prev= None
current = head
while current:
next_node = current.next
current.next = prev
prev = current
current = next_node
return prev- 패턴: Two Pointers, Linked List
- 설명: 리스트를 역순으로 뒤집는 문제로, 포인터를 서로 교차시키며 앞뒤 연결을 바꿔나가는 전형적인 Two Pointers 패턴에 해당합니다. 순회와 포인터 갱신을 통해 한 방향으로 진행합니다.
📊 시간/공간 복잡도 분석
| 복잡도 | |
|---|---|
| Time | O(n) |
| Space | O(1) |
피드백: 현재 구현은 루프를 한 번 순회하며 각 노드의 next 포인터를 이전 노드로 바꿔 반전합니다.
개선 제안: 현재 구현이 적절해 보입니다.
💡 풀이에 시간/공간 복잡도를 주석으로 남겨보세요!
parkhojeong
requested changes
Aug 8, 2026
parkhojeong
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주차 설정, pr 제목 등 pr 체크리스트 항목들 확인 부탁드립니다.
DaleSeo
self-requested a review
August 8, 2026 16:43
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