[20250823] BOJ / G2 / 미확인 도착지 / 이강현 #725
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🧷 문제 링크
https://www.acmicpc.net/problem/9370
🧭 풀이 시간
60분
👀 체감 난이도
✏️ 문제 설명
도착지들중 하나로 가는데 특정 간선을 거쳤는지 확인해야함.
🔍 풀이 방법
다익스트라
모든 간선을 두배하고 그 특정 간선만 1을 빼버림.
그리고 도착지까지의 최소 비용이 홀수면 그 정점이 정답
⏳ 회고
ez