[20250921] BOJ / G4 / 은하철도 / 권혁준 #947
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
🧷 문제 링크
https://www.acmicpc.net/problem/17250
🧭 풀이 시간
10분
👀 체감 난이도
✏️ 문제 설명
N개의 은하에 각각 c[i]개의 행성이 존재한다.
은하철도를 간선 형태로 M개 건설할 예정이고, 각 철도가 건설될 때마다 이 철도를 이용할 수 있는 행성들의 수를 구해보자.
🔍 풀이 방법
분리 집합인데 union할 때 행성 크기도 같이 합쳐주기
⏳ 회고
ze