그랬었습니다

https://programmers.co.kr/learn/courses/30/lessons/60061# 코딩테스트 연습 - 기둥과 보 설치 5 [[1,0,0,1],[1,1,1,1],[2,1,0,1],[2,2,1,1],[5,0,0,1],[5,1,0,1],[4,2,1,1],[3,2,1,1]] [[1,0,0],[1,1,1],[2,1,0],[2,2,1],[3,2,1],[4,2,1],[5,0,0],[5,1,0]] 5 [[0,0,0,1],[2,0,0,1],[4,0,0,1],[0,1,1,1],[1,1,1,1],[2,1,1,1],[3,1,1,1],[2,0,0,0],[1,1,1,0],[2,2,0,1]] [[ programmers.co.kr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ..