[20260130] BOJ / G5 / 로봇 청소기 / 이인희 #1861
Merged
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🧷 문제 링크
https://www.acmicpc.net/problem/14503
🧭 풀이 시간
60 분
👀 체감 난이도
✏️ 문제 설명
🔍 풀이 방법
⏳ 회고
nextDirection = (d + 7 % 4) % 4이렇게 하면되는데... 반시계는?(a + dD % 4 + 4) % 4이것을 이해하자.