a291. nAnB problem | From: [140.116.132.56] | 發表日期: 2020-10-28 20:55

1 2 3 4
4
1 1 4 5
1 2 4 3
1 1 4 4
4 3 2 1
//不要用 cin.ignore()
1 1 1 5
4
1 1 1 1
0 9 2 8
1 5 2 3
1 1 5 1