[20251109] BOJ / G3 / 치즈 / 이준희 #1361
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🧷 문제 링크
https://www.acmicpc.net/problem/2638
🧭 풀이 시간
50분
👀 체감 난이도
✏️ 문제 설명
격자 모양의 치즈가 있고 매 시간마다 2변 이상의 외부 공기와 닿아있는 치즈가 녹을 때
치즈가 모두 녹는데 걸리는 시간을 구하는 문제입니다.
🔍 풀이 방법
외부공기를 파악한 후 각 치즈의 칸 마다 외부 공기와 몇개의 면이 닿아있는지 판단하여 녹여가면서 풀었습니다.
0,0은 치즈가 없음을 보장했기 때문에 0,0에서부터 BFS를 돌려 외부 공기를 찾았습니다.
⏳ 회고
뭔가 오래 걸렸는데 어렵지는 않고 귀찮았습니다.