In the first sample
7
1 1
1 5
3 6
5 3
8 0
9 5
5 9
Result: 5 4 5
Why not 0 0 sqrt(5^2 + 9^2) or another points?
How to determine unique answer?

Edited by author 24.09.2011 11:09

Edited by author 24.09.2011 11:10

I don't think there is a unique answer, you can print any of them.

Edited by author 09.11.2011 02:04