제출 #157337

4 1
2 2 1

1
2
3
4

2
3
4
1

ordering violates constraint: 2 should come before 1

4 1
2 4 3

1
2
3
4

1
2
4
3

ordering violates constraint: 4 should come before 3

2 2
2 1 2
2 2 1

1
2

0

ordering violates constraint: 2 should come before 1