Sample Input
6 3
1
2
3
1
1
1
1 2 3 4 5
1 2 3 4 5
1 2 3 4 6Sample Output
9
1 2 3 4 5
2 3
3 6QOJ.ac
QOJ
Time Limit:
1 s
Memory Limit:
256 MB
# 5011. Course Selection
统计
The problem was used in the following contest: