[HoonDongKang] week 12 solutions #1596
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HoonDongKang merged 5 commits intoDaleStudy:mainfrom Jun 21, 2025
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다양한 접근법으로 문제 풀이를 공유해주셔서 많이 배웠습니다 😆 이번 한 주도 고생 많으셨어요~~!
| } | ||
| // 시간복잡도 O(n + e) | ||
| // 공간복잡도 O(n + e) | ||
| function stackFunc(n: number, edges: number[][]): number { |
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DFS와 BFS 두 가지 풀이를 모두 공유해주셨네요! 🤩 두 가지 접근 모두 인접 리스트로 그래프를 구성함으로써 O(n+e)의 공간 복잡도를 가지는 것 같은데요,
union-find를 통해 edge들을 합쳐나간다면 그래프를 따로 구성하지 않고 O(n)의 공간 복잡도로 풀이할 수도 있다고 합니다! 유의미하게 복잡도를 최적화하는 것은 아니지만 다른 방법도 소개드리고자 공유드려요~!
| if (p.val !== q.val) return false; | ||
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| stack.push([p.left, q.left]); | ||
| stack.push([p.right, q.right]); |
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스택을 이용하여 반복문으로 풀 수도 있었군요! 덕분에 알고 갑니다 😄
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