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🧷 문제 링크
https://www.acmicpc.net/problem/17404
🧭 풀이 시간
50분
👀 체감 난이도
✏️ 문제 설명
집 N개 서로 다르게 칠하기
이때 인접한 두 집은 색깔을 다르게 해야하고 첫번째 집과 N번째 집도 인접한 것으로 취급함.
🔍 풀이 방법
dp
첫 색깔 지정하고 각각 dp 돌리고 N번째 집만 따로 처리해줌.
⏳ 회고
원형이 되니까 좀 헷갈렸다.