사유 문제 2017 베이징 인터넷 경기 hihocoder 1580 Matrix(dp 좋은 사고문제) So he drew a n × m matrix on the paper with integer value ai,j in each cell. To make it more interesting, the shopkeeper ordered YK to change exactly one cell’s value into P, then to solve the puzzle game. (That means, Y... dp사유 문제
2017 베이징 인터넷 경기 hihocoder 1580 Matrix(dp 좋은 사고문제) So he drew a n × m matrix on the paper with integer value ai,j in each cell. To make it more interesting, the shopkeeper ordered YK to change exactly one cell’s value into P, then to solve the puzzle game. (That means, Y... dp사유 문제