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🧷 문제 링크
https://www.acmicpc.net/problem/2239
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
스도쿠를 푸는 문제입니다.
단 최종 출력결과가 스도쿠를 완성하는 81자리 수 중 최소가 되게 하는 문제입니다.
🔍 풀이 방법
DFS, 백트래킹으로 풀었습니다.
줄, 칸, 박스 마다 해당 숫자가 있는지 없는지에 대한 boolean 배열을 활용하여 풀었습니다.
⏳ 회고
스도쿠처럼 규칙을 알고있어도 구현은 귀찮다