[20250204] BOJ / 골드4 / 파이프 옮기기2 / 이강현 #24
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Seol-JY
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Feb 4, 2025
lkhyun/202502/04 BOJ 골드4 파이프 옮기기2.md
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🧷 문제 링크
https://www.acmicpc.net/problem/17069
🧭 풀이 시간
60분
👀 체감 난이도
✏️ 문제 설명
파이프를 밀 수 있는 방향은 총 3가지가 있으며, →, ↘, ↓ 방향이다. 파이프는 밀면서 회전시킬 수 있다. 회전은 45도만 회전시킬 수 있으며, 미는 방향은 오른쪽, 아래, 또는 오른쪽 아래 대각선 방향이어야 한다.
파이프가 가로로 놓여진 경우에 가능한 이동 방법은 총 2가지, 세로로 놓여진 경우에는 2가지, 대각선 방향으로 놓여진 경우에는 3가지가 있다. (링크 사진 참조)
🔍 풀이 방법
dp로 매 회 가능한 경로에 대해 직관적으로 구했음.
⏳ 회고
dp는 머리쓰는게 힘들어