[트리] 2171024 신수정 #342
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[트리] 2171024 신수정 #342
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dbswn
reviewed
May 26, 2023
| int sub_root; | ||
| cin >> N >> R >> Q; | ||
| vector<vector<int>> adj(N + 1, vector<int>(0)); // 연결리스트 저장방법 | ||
| vector<bool> vis(N + 1, false); // 방문 표시 배열 초기화 |
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P3
방문벡터를 따로 사용해주셨는데요. 트리는 그래프와 다르게 사이클이 없기 때문에 dfs로 탐색할 때 부모 노드를 제외하고는 재방문이 일어나지 않습니다! 그래서 수업에서 탐색 시 부모의 정보를 가져오기 편하도록 dfs를 사용했죠! 샘플 코드를 참고하셔서 방문 벡터가 없는 코드를 생각 헤보시면 좋을 것 같습니다
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인적사항
학번: 2171024
이름: 신수정
과제 제출
기존 제출 : "5639" "15681"
추가 제출 :