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🧷 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