1
1 1

1
10 10

100
.....

37
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
10 2
10 3
10 4
10 5
10 6
10 7
10 8
10 9
10 10
6 2
6 3
6 4
5 4
4 4
4 5
4 6
3 6
2 6

In the answer for last one there should be
one 'B' and two 'L'.

Of course, answer for each of these tests can
be used as input.

Thanks a lot.
I had thought that the limit number of the black pixels is [1,10],but I'm wrong.
It is the COORDINATES limit!
I've got ac now.
thanks a lot,for you and for your tests.

Edited by author 20.04.2008 20:25

Edited by author 20.04.2008 20:26

Your input IS WRONG!!! all coordinates must be sorted first by X then by Y