-------------------------
10 7
2 3 1 3 4 1 6 1 2 5
3 4 0
1 0
0
3 0
1 4 0
4 5 0
8 0
0
8 0
7 9 0
1
0
2 4 5 10 0

My AC answer:
18
3
4
8
1
2
5
7
9
10
-------------------------
5 7
1 1 1 1 1
2 0
3 0
4 0
5 0
1 0
1
0
1 2 0

My AC answer: No Solution

Good luck!

Both your tests are invalid. Two officials cannot share one weekday. "So there may work not more than one official at the same time."

4 10
0
0
0
0
1
0
4 0
Own of ac answers is
3
1 2 3


Edited by author 24.11.2011 18:04

May be answer is

3
4

We need the 4-th document. Why we must get 1 2 3, but not to get 4?

This test helped me to get AC

4 4
4 2 3 1
0
0
1 2 0
0
1
3 0
3 4 0

Answer is
0
4

This test helped me
7 13
2 4 1 5 7 6 3
3 0
4 5 0
3 0
3 0
3 0
3 0
3 0
6
1 3 6 0
1 2 3 4 6 0

answer is
24
5 7 4 2