제출 #148200

4 1
2 3 1

1
2
3
4

2
3
4
1

ordering violates constraint: 3 should come before 1

4 1
2 3 2

1
2
3
4

1
3
4
2

ordering violates constraint: 3 should come before 2

2 2
2 1 2
2 2 1

1
2

0

ordering violates constraint: 2 should come before 1