wrong answer on test 72
input:
3
4
3 1 2 2
4
1 2 4 5

4
2 4 2 1
3
1 3 4

4
2 3 3 2
4
2 1 3 4
expected:Yes
0 5
2 5
2 6
4 6
4 2
3 2
3 0
0 0
No
Yes
0 4
2 4
2 5
5 5
5 2
3 2
3 0
0 0

got:Yes
0 0
1 0
1 2
4 2
4 6
2 6
2 5
0 5
No
Yes
0 0
2 0
2 2
5 2
5 5
2 5
2 4
0 4